Zhu, TX
Banghe Zhu, Houston, TX US
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20160038029 | SYSTEM AND METHOD FOR FLUORESCENCE TOMOGRAPHY - Systems and methods for near-infrared fluorescence (NIRF) imaging and frequency-domain photon migration (FDPM) measurements. An optical tomography system includes a bed, a wheel, a light source, an image detector, and radio frequency (RF) circuitry. The bed is configured to support an object to be imaged. The wheel is configured to rotate about the bed. The light source is coupled to the wheel. The image detector is coupled to the wheel and disposed to capture images of the object. The RF circuitry is coupled to the light source and the image detector. The RF circuitry is configured to simultaneously generate a modulation signal to modulate the light source, and generate a demodulation signal to modulate a gain of the image detector. | 02-11-2016 |
Baozhi Zhu, Houston, TX US
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20140069646 | E-RING DIVOT BACK-OUT LOCK - An energizing ring can be used to energize a seal. In embodiments, the energizing ring has a recess, or divot, adjacent to a portion of the seal so that if the seal is deformed during a balloon-type failure, a portion of the deformed seal can occupy the recess. The seal, thus, engages surfaces of the recess to prevent axial movement of the energizing ring relative to the seal. | 03-13-2014 |
20150114666 | TUBE ARRANGEMENT TO ENHANCE SEALING BETWEEN TUBULAR MEMBERS - An well assembly having a housing with an inner surface, the assembly including a tubular member inserted in the housing and having an outer surface. The assembly further includes a plurality of protrusions extending from one of the inner or outer surfaces, the protrusions separated by gaps defined between adjacent protrusions. In addition, the well assembly includes a metal to metal seal pressed against and deformed by the protrusions. A plurality of hollow tubes are provided for insertion in the gaps between the protrusions, the tubes being collapsible upon engagement with the metal to metal seal. | 04-30-2015 |
20150127308 | Stress Amplification Factor Analysis Methodology for Assessing Fatigue Performance of Threaded Connectors - A computer-implemented method is disclosed for characterizing a threaded coupling such as between two tubular members, e.g., casing segments employed in the field of oil and gas recovery. In one embodiment, a virtual model of the coupling is generated, and the virtual model is re-arranged to simulate plastic deformation of at least part of the coupling. The re-arranged model is analyzed to derive a stress/strain distribution of the coupling subject to subsequent loading, and an SAF (stress amplification factor) is determined from the analysis that reflects the effect of cyclic loading of the coupling. The method facilitates a thorough assessment of the performance of the coupling in fatigue. | 05-07-2015 |
20150145247 | ALIGNMENT GUIDE FEATURE FOR METAL TO METAL SEAL PROTECTION ON MECHANICAL CONNECTIONS AND COUPLINGS - A connection is established between a pin connector and a box connector defined on a pair of tubular members such as casing segments in the field of oil and gas recovery. The pin connector and box connector include features for the protection of metallic-sealing surfaces during assembly, disassembly, transport and handling of the tubular members. The pin connector includes a stabbing flank with an inwardly tapered annular flank surface thereon, and an alignment protrusion extending outward with respect to the pin-side metallic sealing surface in a direction normal to a cone angle defined by the inwardly tapered annular flank surface. The alignment protrusion engages internal surfaces of the box connector to concentrically align the pin connector with the box connector, and thereby protects the metallic sealing surfaces from damage that might otherwise result from collisions between the pin connector and the box connector. | 05-28-2015 |
Dunming Zhu, Dallas, TX US
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20090004720 | Smart Biocatalysts For Organic Synthesis - The present disclosure relates to compositions, systems, and methods that include a reusable biocatalyst. A reusable biocatalytic composition may include a stimulus-responsive support operable to be soluble under at least one first condition and insoluble under at least one second condition; and a biocatalyst bound to the stimulus-responsive support complex. According to some embodiments, a method for catalyzing a reaction may include contacting a first reactant with a composition comprising a stimulus-responsive support, a biocatalyst linked to the stimulus-responsive support, and a first solvent under conditions in which the stimulus-responsive support is soluble in the solvent and the reactant is converted to a product. A reusable biocatalyst system, in some embodiments, may include (a) a stimulus-responsive support; (b) a biocatalyst (i) bound to the stimulus-responsive support complex and (ii) having catalytic activity in the presence of a substrate; and a solvent operable to support both first and second condition. | 01-01-2009 |
20100137636 | IDENTIFICATION OF A NITRILASE FROM B. JAPONICUM BY RATIONAL GENOME MINING AND METHODS OF USE - The present disclosure relates to methods of rational genome mining. A method may include narrowing the number of clones that would otherwise need to be screened and/or identifying a gene with a desired catalytic activity. The disclosure also relates to a nitrile hydrolase from | 06-03-2010 |
20100267100 | Enzymatic synthesis of optically pure beta-hydroxy carboxylic acids and their derivatives - The present disclosure is related to systems, compositions, and methods for producing a β-hydroxy carboxylic acid and/or a β-hydroxy carboxylic amide in enantiomeric excess (e.g., enantiomerically pure). In some specific example embodiments, a method may include contacting a substrate and/or intermediate with a cyanide, a ketoreductase, a nitrilase, and/or a nitrile hydratase. Systems, compositions, and methods, in some embodiments, may produce a β-hydroxy carboxylic acid and/or a β-hydroxy carboxylic amide in enantiomeric excess under convenient conditions (e.g., pH 5-9 and temperatures under 50° C.). | 10-21-2010 |
Feiqi Zhu, Austin, TX US
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20100037220 | System and Method for Creating and Associating a Virtual Pseudo TTY with a Running Process - Creating and associating a virtual pseudo tty device with a running process. A pool of virtual pseudo tty devices composed of a number of special character-oriented device files is created and associated with a sub-directory in the device file system. In response to receiving a process id (PID) of a running process, an unassociated virtual pseudo tty device in the pool of virtual pseudo tty devices is assigned to the running process. The association of the running process and the virtual pseudo tty device is accomplished by locating and modifying the running process's controlling tty in the running process's u-block to point to the assigned unassociated virtual pseudo tty device. Following which, the running process id and the associated virtual pseudo tty device are saved in a virtual pseudo tty mapping table thus allowing the running process to be disassociated from a physical console or pseudo tty device. | 02-11-2010 |
Guangyong Zhu, Austin, TX US
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20080265683 | METHOD AND CIRCUIT TO OUTPUT ADAPTIVE DRIVE VOLTAGES WITHIN INFORMATION HANDLING SYSTEMS - A method and circuit to output adaptive drive voltages within information handling systems is disclosed. According to one aspect of the disclosure, a method of outputting power within an information handling system can include sensing a load current of a power output stage operable to employ more than one drive voltage level. The method can also include comparing the load current to a threshold current setting, and selecting a first output drive voltage from a plurality of input drive voltages in response to comparing the load current to the threshold current setting. The method can also include coupling the first output drive voltage to the power output stage. | 10-30-2008 |
20090051629 | System and Method for Sequential Driving of Information Handling System Display Backlight LED Strings - An information handling system display backlight illuminates an image with plural strings of LEDs driven by a backlight driver integrated circuit with pulse width modulation. A string detection module detects the number of active LED strings and divides the time period by number of active LED strings into an equal number of time delays or shifts so that the backlight driver sequentially turns on an LED string at a predetermined time period. The active number of LED strings is detected by reading a total number of LED strings from a management interface and subtracting from the total number any detected failed LED strings or any LED strings powered down to reduce power consumption. | 02-26-2009 |
20090167249 | Method for verifying smart battery failures by measuring input charging voltage and associated systems - A method and associated system are disclosed for verifying charging failures for smart batteries by measuring input charging voltage and associated systems. In one embodiment, a determination is made whether or not a charging current is indicative of a battery failure by utilizing an analog-to-digital (A/D) port to measure the input charging voltage. As long as the measured input charging voltage is below the cell pack voltage or some set voltage value, whichever is higher, the BMU considers a charging current detection to be a false failure indication. If the measured charging voltage is above the cell pack voltage or a set voltage value, whichever is lower, the BMU considers the charging current detection to be a positive failure indication. The BMU can then disable the battery or implement other verification steps before disabling the battery, as desired. | 07-02-2009 |
20090251837 | System and Method for Information Handling System Display Backlight Protection and Monitoring - A current limiting MOSFET monitors power applied to a direct current boost regulator that powers an LED backlight to automatically shut off power to the boost regulator if the current exceeds a predetermined amount. An embedded controller interfaces with the current limiting MOSFET for normal control of operation of the boost regulator by turning the MOSFET on and off. An overcurrent alert is communicated from the MOSFET to the embedded controller if the current exceeds the predetermined amount so that the embedded controller shuts off power to the boost regulator and indicates the failure to an end user. | 10-08-2009 |
20100096924 | System and Method for Powering an Information Handling System in Multiple Power States - Power is supplied to an information handling system chipset with a single voltage regulator having dual phases. A first phase of the voltage regulator provides power to a low power state power rail in an independent mode to support a low power state, such as a suspend or hibernate state. A second phase of the voltage regulator provides power to a run power state power rail in combination with the first phase by activation of a switch, such as a MOSFET load switch, that connects the low power state power rail and the run power state power rail. Voltage sensed from both power rails is applied to control voltage output so that the run power state power rail is maintained within more precise constraints than the low power state power rail. | 04-22-2010 |
20120038339 | System and Method for Powering an Information Handling System in Multiple Power States - Power is supplied to an information handling system chipset with a single voltage regulator having dual phases. A first phase of the voltage regulator provides power to a low power state power rail in an independent mode to support a low power state, such as a suspend or hibernate state. A second phase of the voltage regulator provides power to a run power state power rail in combination with the first phase by activation of a switch, such as a MOSFET load switch, that connects the low power state power rail and the run power state power rail. Voltage sensed from both power rails is applied to control voltage output so that the run power state power rail is maintained within more precise constraints than the low power state power rail. | 02-16-2012 |
Guorong Zhu, Denton, TX US
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20140292042 | TRAY TABLE STRUCTURE - Described are tray table assemblies comprising a table body including a frame. The frame is formed of an upper bar and a lower bar that connect a pair of slide guides, wherein the upper bar, the lower bar, and the pair of slide guides are integrally formed as a single piece. | 10-02-2014 |
Haifeng Zhu, Sugar Land, TX US
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20140291234 | DISPOSABLE INTEGRATED POLYMERIC VACUUM FILTRATION FUNNEL - This invention discloses a disposable integrated polymeric vacuum filtration funnel. The integrated polymeric vacuum filtration funnel comprises a filtration funnel body having a filter frit disposed inside at the bottom, an outlet stem connected with an outlet at the outer bottom of the filtration funnel body; the outlet stem is integrated with the filtration funnel body; the filter frit is sealed to the inner bottom and the inner side surface of the filtration funnel body; the integrated polymeric vacuum filtration funnel comprises a sealing joint disposed underneath the outer bottom of the filtration funnel body, the sealing joint having a side-arm for vacuum connection and a standard adaptor to connect the receiving receptacle; the outlet stem protrudes from the standard adaptor; the filter frit, filtration funnel body, and sealing joint are integrated as one device. The invention can effectively reduce or eliminate the loss of the filtrate and filter cake, avoid contamination, easy to use, and cost-effective. | 10-02-2014 |
Hongyao Zhu, Cedar Park, TX US
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20090076046 | Compounds modulating c-fms and/or c-kit activity and uses therefor - Compounds active on the receptor protein tyrosine kinases c-kit and/or c-fms are provided herewith. Also provided herewith are compositions useful for treatment of c-kit mediated diseases or conditions and/or c-fms-mediated diseases or conditions, and methods for the use thereof. | 03-19-2009 |
Hua Zhu, Austin, TX US
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20140307759 | Isolated Serializer-Deserializer - A first integrated circuit die receives input data from a plurality of input channels and combines the input data from the plurality of input channels into combined data. The first integrated circuit die transmits the combined data across an isolation communication channel. A second integrated circuit die that is coupled to the isolation communication channel decodes the transmitted combined data and supplies the decoded transmitted combined data to respective output channels corresponding to the input channels. | 10-16-2014 |
Huiguang Zhu, Houston, TX US
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20130011339 | NANOPARTICLE COMPOSITIONS COMPRISING A LIPID BILAYER AND ASSOCIATED METHODS - Bilayer-nanoparticle compositions comprising a nanoparticle core and a lipid bilayer disposed around the exterior surface of the nanoparticle core are provided. In some embodiments, these bilayer-nanoparticle compositions may be dispersed in an aqueous solution. Associated methods are also provided. | 01-10-2013 |
Jiangfeng Zhu, Houston, TX US
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20100009418 | Increasing NADPH-Dependent Products - A method of increasing cellular NADPH levels by expressing one or more genes that encode an enzyme that causes the production of NADPH. The system is combined with other enzymes that require NADPH, thus improving the overall yield of the desired product. | 01-14-2010 |
20130203137 | INCREASING BACTERIAL SUCCINATE PRODUCTIVITY - Improved bacteria for making succinate and other 4 carbon dicarboxylates from the Krebs cycle have modifications to reduce acetate, lactate, EtOH and formate, as well as turn on the glyoxylate shunt, produce more NADH and overexpress In one embodiment, the bacteria are ΔadhEΔldhAΔiclRΔack-pta plus PYC | 08-08-2013 |
Jianhong Zhu, Austin, TX US
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20080296682 | MOS STRUCTURES WITH REMOTE CONTACTS AND METHODS FOR FABRICATING THE SAME - MOS structures with remote contacts and methods for fabricating such MOS structures are provided. In one embodiment, a method for fabricating an MOS structure comprises providing a semiconductor layer that is at least partially surrounded by an isolation region and that has an impurity-doped first portion. First and second MOS transistors are formed on and within the first portion. The transistors are substantially parallel and define a space therebetween. An insulating material is deposited overlying the first portion of the semiconductor layer and at least a portion of the isolation region. A contact is formed through the insulating material outside the space such that the contact is in electrical communication with the transistors. | 12-04-2008 |
20080303089 | INTEGRATED CIRCUIT SYSTEM WITH TRIODE - An integrated circuit system includes an integrated circuit, forming a triode near the integrated circuit, and attaching a connector to the triode and the integrated circuit. | 12-11-2008 |
20080308879 | MOS STRUCTURES WITH CONTACT PROJECTIONS FOR LOWER CONTACT RESISTANCE AND METHODS FOR FABRICATING THE SAME - MOS structures with contact projections for lower contact resistance and methods for fabricating such MOS structures have been provided. In an embodiment, a method comprises providing a semiconductor substrate, fabricating a gate stack on the substrate, and forming a contact projection on the substrate. Ions of a conductivity-determining type are implanted within the substrate using the gate stack as an ion implantation mask to form impurity-doped regions within the substrate. A metal silicide layer is formed on the contact projection and a contact is formed to the metal silicide layer. The contact is in electrical communication with the impurity-doped regions via the contact projection. | 12-18-2008 |
20110108949 | METAL CAPACITOR DESIGN FOR IMPROVED RELIABILITY AND GOOD ELECTRICAL CONNECTION - A metal capacitor is formed with good conductivity for both nodes of the capacitor and improved reliability. An embodiment includes a first layer of alternating first and second metal lines, a second layer of alternating third and fourth metal lines, a dielectric layer between the first and second layers, and vias in the dielectric layer connecting the first and second metal lines with the third and fourth metal lines, respectively, wherein each metal line comprises alternating first segments having a first width and second segments having a second width, the first width being greater than the second width, each first segment lying adjacent to a second segment of an adjacent metal line, and only first segments of the metal lines overlapping the vias. The design enables the spacing between metal lines to be maintained, the spacing between via to metal to be increased, and via connection to be maintained for both nets, thereby improving the conductivity and reliability of the capacitor and maintaining capacitance density. | 05-12-2011 |
20130105944 | METAL CAPACITOR DESIGN FOR IMPROVED RELIABILITY AND GOOD ELECTRICAL CONNECTION | 05-02-2013 |
Jinying Zhu, Round Rock, TX US
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20140060193 | DEVICES, SYSTEMS, AND METHODS FOR NON-DESTRUCTIVE TESTING OF MATERIALS AND STRUCTURES - Provided are devices, systems, and methods for the testing of materials and structures. For example, the devices, systems, and methods are optionally used for the non-destructive testing of a material or structure. Furthermore, the devices, systems, and methods may optionally use a high-amplitude, air-coupled acoustic source for non-destructive testing of materials and structures. | 03-06-2014 |
Judy Zhu, Plano, TX US
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20080215009 | IV Catheter introducer with retractable needle - continuation - An IV catheter introducer having a retractable needle holder and a tubular plunger that are held by a detent structure in a preferred positional relationship prior to and during insertion of the catheter. Following insertion, the plunger is pushed past the detent structure, permitting a compressed spring to force the needle holder upwardly into the plunger. A vented end cap in the plunger permits rapid venting of air displaced during retraction of the needle holder. The needle holder includes a flash chamber that is easily viewable through a clear plastic housing. Wings are provided on the housing to facilitate one-handed operation of the device. A method for assembling the subject catheter introducer is also disclosed. | 09-04-2008 |
Li Zhu, College Station, TX US
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20120199534 | DESALINATION METHODS - In accordance with particular embodiments, a desalination system includes a plurality of evaporators. The plurality of evaporators includes at least a first evaporator and a last evaporator. The plurality of evaporators are arranged in cascading fashion such that a concentration of salt in a brine solution increases as the brine solution passes through the plurality of evaporators from the first evaporator towards the last evaporator. The desalination system also includes a plurality of heat exchangers. An input of each evaporator is coupled to at least one of the plurality of heat exchangers. The system also includes a vapor source coupled to at least one of the plurality of evaporators. | 08-09-2012 |
Liang Zhu, Houston, TX US
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20110229560 | NLRC5 AS A TARGET FOR IMMUNE THERAPY - The present invention concerns the enhancement of immune response to microbial infection and/or inflammation-associated disease through at least partial inhibition of NLRC5. The inhibition may be of any suitable means, although in particular cases it is via siRNA agents. In specific embodiments, a particular domain of NLRC5 is targeted by the siRNA. | 09-22-2011 |
Ming Benjamin Zhu, Cedar Park, TX US
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20080294660 | Cluster storage using delta compression - Cluster storage is disclosed. A data stream or a data block is received. The data stream or the data block is broken into segments. For each segment, a cluster node is selected, and in the event that a similar segment to the segment is identified that is already managed by the selected cluster node, a reference to the similar segment and a delta between the similar segment and the segment is caused to be stored on the selected cluster node. | 11-27-2008 |
20110196869 | CLUSTER STORAGE USING DELTA COMPRESSION - Storage of data segments is disclosed. For each segment, a similar segment to the segment is identified, wherein the similar segment is already managed by a cluster node. In the event the similar segment is identified, a reference to the similar segment and a delta between the similar segment and the segment are caused to be stored instead of the segment. | 08-11-2011 |
Ming Benjamin Zhu, Austin, TX US
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20100125553 | Delta compression after identity deduplication - Delta compression after identity deduplication is disclosed. A first data segment is determined to be identical to a first previous data segment. A second data segment, not determined to be identical to a second previous data segment, is then determined to be similar to a third previous data segment. | 05-20-2010 |
20110040819 | EFFICIENT COMPUTATION OF SKETCHES - Determining a summary feature set is disclosed. A plurality of subsegments of a first segment are selected. For each subsegment, a plurality of values by applying a set of functions to each subsegment are computed. From all the values computed for all the subsegments, a first subset of values is selected. | 02-17-2011 |
20110191560 | EFFICIENT DATA STORAGE USING TWO LEVEL DELTA RESEMBLANCE - Storage using resemblance of data segments is disclosed. It is determined that a new segment resembles a second prior stored segment wherein the second prior stored segment is represented as a first stored delta and a first prior stored segment. A second delta between the new segment and the prior stored segment is determined. A representation of the new segment based at least in part on the second delta is stored. | 08-04-2011 |
20120317381 | EFFICIENT DATA STORAGE SYSTEM - A system and method are disclosed for providing efficient data storage. A plurality of data segments is received in a data stream. The system preliminarily checks in a memory having a relatively low latency whether one of the plurality of data segments may have been stored previously in a data segment repository. The memory having the relatively low latency stores data segment information. In the event that the preliminary check determines that one of the plurality of data segments may have been stored in the data segment repository, a memory having a relatively higher latency is checked to determine whether the data segment has been stored previously in the data segment repository. | 12-13-2012 |
20130232125 | STREAM LOCALITY DELTA COMPRESSION - Stream locality delta compression is disclosed. A previous stream indicated locale of data segments is selected. A first data segment is then determined to be similar to a data segment in the stream indicated locale. | 09-05-2013 |
20140040341 | EFFICIENT COMPUTATION OF SKETCHES - Determining a summary feature set is disclosed. A plurality of subsegments of a first segment are selected. For each subsegment, a plurality of values by applying a set of functions to each subsegment are computed. From all the values computed for all the subsegments, a first subset of values is selected. | 02-06-2014 |
20140129790 | EFFICIENT DATA STORAGE SYSTEM - A system and method are disclosed for providing efficient data storage. A plurality of data segments is received in a data stream. The system preliminarily checks in a memory having a relatively low latency whether one of the plurality of data segments may have been stored previously in a data segment repository. The memory having the relatively low latency stores data segment information. In the event that the preliminary check determines that one of the plurality of data segments may have been stored in the data segment repository, a memory having a relatively higher latency is checked to determine whether the data segment has been stored previously in the data segment repository. | 05-08-2014 |
20140337363 | SUBSEGMENTING FOR EFFICIENT STORAGE, RESEMBLANCE DETERMINATION, AND TRANSMISSION - Transmitting or storing subsegments is disclosed. A data stream or a data block is received and broken into a plurality of segments. For at least one segment, the segment is broken into a plurality of subsegments. A previously stored or transmitted segment similar to the at least one segment is identified. A fingerprint is computed for at least one subsegment. And, using the fingerprint for the at least one subsegment, determining whether the at least one subsegment is identical to a subsegment of the previously stored or transmitted segment without directly comparing the content of the at least one subsegment with the content of the subsegment of the previously stored or transmitted segment. | 11-13-2014 |
20150052103 | DATA REPLICATION WITH DELTA COMPRESSION - Data replication with delta compression is disclosed. A primary system and a replica system are determined to both have an identical first data segment that is similar to a second data segment. The second data segment is encoded, wherein the encoding refers to the first data segment. | 02-19-2015 |
20150261779 | STREAM LOCALITY DELTA COMPRESSION - Stream locality delta compression is disclosed. A previous stream indicated locale of data segments is selected. A first data segment is then determined to be similar to a data segment in the stream indicated locale. | 09-17-2015 |
20160034212 | EFFICIENT DATA STORAGE SYSTEM - A system and method are disclosed for providing efficient data storage. A plurality of data segments is received in a data stream. The system determines whether a data segment has been stored previously in a low latency memory. In the event that the data segment is determined to have been stored previously, an identifier for the previously stored data segment is returned. | 02-04-2016 |
Ni Zhu, Plano, TX US
Patent application number | Description | Published |
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20090306601 | Fluid Flow Control Device with Retractable Cannula - A device having a housing; a cannula projecting forwardly from the housing; a connector useful for attaching the device to a fluid source or receptacle; a fluid flow path establishing fluid communication between the cannula and the connector; a retraction mechanism biasing the cannula away from its projecting position; and an actuator supported by the housing and configured to modify the fluid flow path so as to terminate fluid flow through the device, seal off the fluid flow path, and release the retraction mechanism to retract the cannula into the housing. The subject device is particularly preferred for use in the medical field, for example, as part of an infusion set or as a collection device for blood, or other fluids or flowable matter. | 12-10-2009 |
20100000040 | Cleaning Tool for Attachment Surfaces - A tool that is useful for cleaning and disinfecting the attachment surfaces of a fluid connector device used in medical applications, the tool having a housing with an opening of defined shape and a chemically treated flexible insert disposed inside the housing that substantially conforms to the inside wall of the housing and, when placed over the attachment surfaces of a fluid connector device, can be manipulated axially and rotationally relative to the attachment surfaces to contact, clean and disinfect the surfaces. | 01-07-2010 |
20100003067 | Cleaning Tool - A tool that is useful for cleaning and disinfecting the attachment surfaces of a fluid connector device used in medical applications, the tool having a housing with an opening of defined shape and a chemically treated flexible insert positionable inside the housing that substantially conforms to the inside wall of the housing and, when placed over the attachment surfaces of a fluid connector device, can be manipulated axially and rotationally relative to the attachment surfaces to contact, clean and disinfect the surfaces. Some embodiments can also be used for topical cleaning of skin or other surfaces. | 01-07-2010 |
20100168674 | IV Catheter Introducer - An IV catheter introducer having an elastomeric grommet disposed between the housing and the IV catheter assembly that helps avoid unintentional separation of IV catheter assembly from the housing during shipping and handling prior to use, that acts as a needle guide, that helps align the housing and IV catheter assembly coaxially, that indicates that top side of the catheter introducer, that provides proper rotational alignment between the grommet and housing, that wipes blood off the needle during withdrawal of the needle from the catheter assembly and grommet, that impedes blood flow out of the catheter hub after needle withdrawal, and that assists the user in separating the housing from the IV catheter assembly following insertion of the catheter and withdrawal of the needle. | 07-01-2010 |
20100317999 | Non-Reusable Collection Device for Bodily Fluids - A non-reusable device for collecting bodily fluids such as vascular blood from a patient, the device being configured for example to receive a blood collection tube and having a retractable needle attached to a rearwardly biased needle holder that is constrained prior to needle retraction by a rotatably mounted lug ring and that is released during retraction by depressing a trigger pivotably connected to the body of the device to rotate the lug ring, whereby the needle holder is driven into a retraction cavity disposed inside the trigger and the front tip of the needle is retained inside the body of the device. | 12-16-2010 |
20110064512 | Cleaning Tool - A tool that is useful for cleaning the attachment surfaces of a device used in medical applications, the tool having a housing with an open end, a closed end, a sidewall disposed between the open end and the closed end, and a positioning collar seated adjacent to the sidewall between the open and closed ends with a sponge extending through and releasably held by the positioning collar, a treating liquid disposed inside the housing, and a releasable fluid-tight seal disposed over the open end. | 03-17-2011 |
20110125097 | Catheter Introducer with Hub Seal and Removal Tab - A catheter introducer having a catheter hub seal that is engageable with the rear opening of the catheter hub to impede liquid flow out of the catheter hub following catheter insertion and subsequent withdrawal of the needle following separation of the housing from the catheter hub. The catheter hub seal is preferably made of a rubbery material and can be disposed between the housing and catheter assembly or can be attachable to the catheter assembly. | 05-26-2011 |
20110230844 | Glass Syringe with Retractable Needle - A syringe, particularly preferred for use as a prefilled syringe, that has a retractable needle and is characterized by a liquid containment chamber of variable volume, the liquid containment chamber being further defined by surfaces made of glass or an elastomeric material, and not of plastic, and the syringe having no glass part directly contacting another glass part. | 09-22-2011 |
20120004621 | Medical Device with Retractable Needle and Moveable Plunger Seal - A medical device having a barrel, a retractable needle, a needle retraction assembly and a plunger, the needle retraction assembly including and being held inside the barrel prior to retraction at least in part by a retainer member contacting the barrel, the plunger comprising a plunger seal with an body having at least a portion that is rearwardly moveable relative to the plunger and an elastomeric web that seals a retraction cavity inside the plunger prior to retraction of the needle, the retainer member and the plunger seal each cooperating with an inside wall of the barrel to provide a sealed liquid containment chamber inside the device. | 01-05-2012 |
20120226232 | Fluid Flow Control Device with Retractable Cannula - A device having a housing; a cannula projecting forwardly from the housing; a connector useful for attaching the device to a fluid source or receptacle; a fluid flow path establishing fluid communication between the cannula and the connector; a retraction mechanism biasing the cannula away from its projecting position; and an actuator supported by the housing and configured to modify the fluid flow path so as to terminate fluid flow through the device, seal off the fluid flow path, and release the retraction mechanism to retract the cannula into the housing. The subject device is particularly preferred for use in the medical field, for example, as part of an infusion set or as a collection device for blood, or other fluids or flowable matter. | 09-06-2012 |
20120259243 | Blood Draw Device with Retractable Needle - The Invention comprises a body, an actuator pivotally connected to the body, and a retractable needle adapted to provide fluid communication between a patient and a fluid collection tube, typically a blood collection tube, attachable to the device. A significant feature of the subject device is a retraction cavity disposed inside the actuator that is manually positionable to receive a portion of the needle retraction assembly following removal of the blood collection tube. Retraction is initiated by depressing the forwardly extending end of the actuator relative to the body, thereby causing a retainer clip to release the needle holder, after which the needle holder and a part of the needle are propelled into the retraction cavity by expansion of a compressed spring. The needle is thereby withdrawn from the patient and into the housing, reducing the likelihood of accidental needle sticks and preventing reuse of the device. | 10-11-2012 |
20120323181 | Intravenous Catheter Introducer with Needle Retraction Controlled by Catheter Hub Seal - A passive intravenous (“IV”) catheter introducer having a spring-biased needle retraction system that is triggered when the needle is manually withdrawn through a catheter hub seal. The catheter hub seal constricts to block the rearward flow of bodily fluid and wipe potentially infectious fluids off the outer surface of the needle as the needle is manually withdrawn through the catheter sheath and seal following insertion of the catheter into a patient's vein. No additional steps are needed to activate the needle retraction mechanism beyond manual removal of the needle from the catheter hub seal. | 12-20-2012 |
20130261551 | Fluid Flow Control Device with Retractable Cannula - A device having a housing; a cannula projecting forwardly from the housing; a connector useful for attaching the device to a fluid source or receptacle; a fluid flow path establishing fluid communication between the cannula and the connector; a retraction mechanism biasing the cannula away from its projecting position; and an actuator supported by the housing and configured to modify the fluid flow path so as to terminate fluid flow through the device, seal off the fluid flow path, and release the retraction mechanism to retract the cannula into the housing. The subject device is particularly preferred for use in the medical field, for example, as part of an infusion set or as a collection device for blood, or other fluids or flowable matter. | 10-03-2013 |
20140012206 | Medical Device with Sliding Frontal Attachment and Retractable Needle - A medical device having a frontal attachment and a connector housing having or attachable to an associated medical apparatus, the frontal attachment slidably engaging the connector housing and having a forwardly projecting, rearwardly biased needle and a needle retraction assembly, and the connector housing having a needle retraction cavity laterally offset from the needle in a first position, the needle retraction cavity being selectively movable relative to the frontal attachment following use to reposition the needle retraction cavity into alignment with the needle to permit retraction. | 01-09-2014 |
20140171830 | Needle Retraction Apparatus - A needle retraction apparatus for a medical device such as a liquid infusion or collection device, the apparatus having a body, a needle retraction mechanism seated inside the body, a transverse slide member with an external needle retraction chamber, and a retraction actuator that is rotatable relative to the slide member, the retraction actuator being attachable to or made as part of the liquid infusion or collection device, whereby rotation of the device causes the slide member to move in a linear translational direction to reposition the retraction chamber in alignment with the needle retraction mechanism and allow retraction. | 06-19-2014 |
20140171876 | Combined Medical Device with Sliding Frontal Attachment and Retractable Needle - A medical device having a frontal attachment and a connector housing having at least a body part of an associated medical apparatus, the frontal attachment slidably engaging the connector housing and having a forwardly projecting, rearwardly biased needle and a needle retraction assembly, and the connector housing having a needle retraction cavity laterally offset from the needle in a first position, the needle retraction cavity being selectively movable relative to the frontal attachment following use to reposition the needle retraction cavity into alignment with the needle to permit retraction. | 06-19-2014 |
20140171877 | Frontal Attachment Device for Syringe with Rotationally Activated Retractable Needle - A medical device attachable to the front of a conventional syringe and having a hub assembly selectively attachable to the syringe, a nose projecting forwardly from the hub assembly, a rearwardly biased needle retraction mechanism seated inside the nose, a retractable needle projecting forwardly of the nose, and a fluid flow path from the fluid chamber through the hub assembly, nose, needle retraction assembly and needle, wherein the needle is retracted into the nose and a retraction tube external to the syringe by rotating the syringe relative to the nose. | 06-19-2014 |
20140276435 | Needle Retraction Apparatus - A needle retraction apparatus comprising a body having a forwardly projecting needle, a needle retraction mechanism seated inside the body and biasing the needle rearwardly relative to the body, a slide member attachable to the body and having an opening communicating with a needle retraction cavity projecting away from the body, and an actuator rotatable relative to the slide member to reposition the slide member from a first position preventing needle retraction to a second position permitting needle retraction. An IV catheter introducer comprising the subject needle retraction apparatus is also disclosed. | 09-18-2014 |
20140276445 | Frontal Attachment Device for Syringe with Pinch-Activated Retraction - A retractable needle device attachable to the front of a fluid collection or infusion device such as a syringe, the retractable needle device comprising a housing having an engagement member, a slide support surface, a retraction cavity and a first pinch surface; a needle; a needle alignment member comprising a needle tube and a second pinch surface; and a needle retraction mechanism positioned within the needle tube and configured to bias the needle rearwardly; wherein the first and second pinch surfaces are configured so that a pinching force applied to them will cause relative lateral movement between the housing and needle alignment member. This translational movement from an injection position, wherein the needle is aligned with the syringe connector, to a retraction position, wherein the needle is aligned with the retraction cavity, allows the needle retraction mechanism to force the needle into the retraction cavity. | 09-18-2014 |
20150073303 | Retractable Needle for Blood Gas Sampling - A medical device having a frontal attachment and a connector housing having at least a body part of an associated medical apparatus, the frontal attachment slidably engaging the connector housing and having a forwardly projecting, rearwardly biased needle and a needle retraction assembly, and the connector housing having a needle retraction cavity laterally offset from the needle in a first position, the needle retraction cavity being selectively movable relative to the frontal attachment following use to reposition the needle retraction cavity into alignment with the needle to permit retraction. The subject device is desirably specially modified for use in blood gas sampling by the addition of a filter plug. | 03-12-2015 |
20150283328 | Needle Holder Assembly - A needle holder assembly comprising a needle and a needle holder having a longitudinal bore, a bump disposed on the outside of an intermediate portion of the needle prior to assembly with the needle holder, and a needle containment structure disposed inside the bore of the needle holder such that the needle can be inserted rearwardly into the bore until the bump is past the containment structure, after which the bump is not moveable forwardly past the containment structure. | 10-08-2015 |
20150283329 | Medical Device with Selectively Retractable Needle Cap - A medical device having a forwardly-projecting needle and a selectively-movable needle cap that can be variously positioned to cover all or a portion of the needle, depending upon whether the device is, for example, being transported, aspirated or used to inject a therapeutic fluid. The device can optionally be configured to enable retraction of the needle into the body for safe disposal following use. | 10-08-2015 |
Ping Jun Zhu, Houston, TX US
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20140336184 | METHOD TO ENHANCE COGNITION - The present invention concerns methods and compositions regarding suppression of double stranded RNA-activated protein kinase (PKR) to enhance cognition in an individual. In specific cases, an inhibitor of PKR is provided to the individual such that cognition is enhanced thereby, including by enhancing memory, for example. Kits are encompassed in certain embodiments. | 11-13-2014 |
Qi Zhu, Houston, TX US
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20100047875 | Making nucleic acid sequences in parallel and use - The present invention relates generally to the fields of genomics, synthetic biology and genetic engineering. More particularly, the present invention concerns the methods that enable parallel multiplex ligation and amplification on surface for making assemblies of nucleic acids of various biological applications and for analysis of biological samples such as DNA, RNA, and proteins. | 02-25-2010 |
20100210478 | MAKE AND USE OF SURFACE MOLECULES OF VARIED DENSITIES - The present invention relates to quantitative and quantity aspects of array synthesis and array uses as a device for high capacity producing synthetic molecules for off-array surface applications and as an assay device for on-array surface applications. | 08-19-2010 |
Qifeng Zhu, Plano, TX US
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20100198597 | DYNAMIC PRUNING FOR AUTOMATIC SPEECH RECOGNITION - Methods, speech recognition systems, and computer readable media are provided that recognize speech using dynamic pruning techniques. A search network is expanded based on a frame from a speech signal, a best hypothesis is determined in the search network, a default beam threshold is modified, and the search network is pruned using the modified beam threshold. The search network may be further pruned based on the search depth of the best hypothesis and/or the average number of frames per state for a search path. | 08-05-2010 |
Qing Zhu, Austin, TX US
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20140231383 | METHOD FOR MAKING A PERPENDICULAR MAGNETIC RECORDING DISK WITH TEMPLATE LAYER FORMED OF NANOPARTICLES EMBEDDED IN A POLYMER MATERIAL - A method for making a perpendicular magnetic recording disk includes forming a template layer below a Ru or Ru alloy underlayer, with a granular Co alloy recording layer formed on the underlayer. The template layer is formed by depositing a solution of a polymer with a functional end group and nanoparticles, allowing the solution to dry, annealing the polymer layer to thereby form a polymer layer with embedded spaced-apart nanoparticles, and then etching the polymer layer to a depth sufficient to partially expose the nanoparticles so they protrude above the surface of the polymer layer. The protruding nanoparticles serve as controlled nucleation sites for the Ru or Ru alloy atoms. The nanoparticle-to-nanoparticle distances can be controlled during the formation of the template layer. This enables control of the Co alloy grain diameter distribution as well as grain-to-grain distance distribution. | 08-21-2014 |
20140234665 | PERPENDICULAR MAGNETIC RECORDING DISK WITH TEMPLATE LAYER FORMED OF NANOPARTICLES EMBEDDED IN A POLYMER MATERIAL - A perpendicular magnetic recording disk includes a template layer below a Ru or Ru alloy underlayer, with a granular Co alloy recording layer formed on the underlayer. substrate. The template layer comprises nanoparticles spaced-apart and partially embedded within a polymer material, with the nanoparticles protruding above the surface of the polymer material. A seed layer covers the surface of the polymer material and the protruding nanoparticles and an underlayer of Ru or a Ru alloy covers the seed layer. The protruding nanoparticles serve as the controlled nucleation sites for the Ru or Ru alloy atoms. The nanoparticle-to-nanoparticle distances can be controlled during the formation of the template layer. This enables control of the Co alloy grain diameter distribution as well as grain-to-grain distance distribution. | 08-21-2014 |
20150221330 | PERPENDICULAR MAGNETIC RECORDING DISK WITH TEMPLATE LAYER FORMED OF A BLEND OF NANOPARTICLES - A continuous-media perpendicular magnetic recording disk has a granular recording layer (RL) with controlled grain pitch distribution and controlled long range ordering of the grains. The disk includes a substrate with a template layer for the RL that comprises a blend of at least two different sized nanoparticles. The nanoparticles have a nanoparticle core with attached polymer ligands. The nanoparticle cores protrude above the surface of the template layer to provide a nonplanar surface topology. The blend of two sizes of nanoparticles causes the RL to have low grain pitch distribution and a disruption of long range ordering so that there are no large magnetic rafts. One of the nanoparticles types has a diameter greater than 105% of the diameter of the other nanoparticle type and is present in the total blend of nanoparticles of between about 5% and 35% or between about 55% and 90%. | 08-06-2015 |
Rupert Zhu, Richardson, TX US
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20080279201 | METHODS, SYSTEMS, AND COMPUTER PROGRAM PRODUCTS FOR SOURCE-AWARE IP ROUTING AT A MEDIA GATEWAY - The subject matter described herein includes methods, systems, and computer program products for source-aware IP routing at a media gateway. According to one aspect, a method for source-aware IP routing at a media gateway is provided. The method includes providing a packet including a layer | 11-13-2008 |
20100214927 | METHODS, SYSTEMS, AND COMPUTER PROGRAM PRODUCTS FOR LOAD BALANCED AND SYMMETRIC PATH COMPUTATIONS FOR VoIP TRAFFIC ENGINEERING - The subject matter described herein includes methods, systems, and computer program products for load balanced and symmetric SPF path computations for VoIP traffic engineering. One method includes advertising an output interface cost in a first direction over a first network segment between a source IP device and a destination IP device that is different from an output interface cost in advertised in a second direction over the first network segment. A plurality of available network paths between the source IP device and the destination IP device is identified. A path cost is calculated for each of the available network paths from the source IP device to the destination IP device. Calculating a path cost includes, for paths that include the first network segment, substituting the output interface cost advertised in the first direction with the output interface cost advertised in the second direction. The path costs are ranked based on the calculated costs. A lowest cost path is selected from the ranked paths. Both directions of a media session are assigned to the lowest cost path. | 08-26-2010 |
Shan Zhu, Plano, TX US
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20100284268 | Node State Recovery for a Communication Network - Recovering state information for a node in a communication network includes receiving a path message after occurrence of a fault condition. A unique path identifier associated with the path message may be compared to at least one stored unique path identifier. In response to a determination that the unique path identifier associated with the path message matches at least one stored unique path identifier, path resource requirements associated with the path message may be compared to previously-committed resources associated with the at least one stored unique path identifier. In response to a determination that the path resource requirements associated with the path message match previously-committed resources associated with the at least one stored unique path identifier, a communications channel may be maintained through the node using the previously-committed resources and based on path information set forth in the path message. | 11-11-2010 |
20100284269 | Multi-Node State Recovery for a Communication Network - Node recovery in a communication network, includes determining whether a heartbeat message is received by a first node from a second node upstream of the first node within a heartbeat timeout threshold of the first node in response to an occurrence of a fault condition at the first node. In response to determining that the heartbeat message is not received within the heartbeat timeout threshold, a probe message may be communicated to one or more third nodes downstream of both the first node and the second node, wherein receipt of the probe message by one of the third nodes is operable to prevent deletion of previously-committed resources at the third node and associated with the second node. | 11-11-2010 |
20110103223 | System and Method to Determine Resource Status of End-to-End Path - Determining availability of an end-to-end physical path associated with reserved resources of a tunnel may include determining, for one or more nodes, a resource status for one or more resources integral to each node. Resource status for the integral resources of each node may be recorded in a message. Each node may communicate its associated message to one or more other nodes. At least one particular node of the one or more nodes may receive the messages communicated from the one or more nodes. The at least one particular node may store resource statuses for each of the one or more nodes. Based on an analysis of resource statuses, the at least one particular node may determine an availability of an end-to-end path of reserved resources of a tunnel including one or more of the nodes based on an analysis of resource statuses. | 05-05-2011 |
Weiyong Zhu, Richardson, TX US
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20110113480 | CARRIER-GRADE PEER-TO-PEER (P2P) NETWORK, SYSTEM AND METHOD - A computing network, including: a plurality of peer computing devices including code, which when executed by a peer computing device causes the executing peer computing device to cooperate with at least one other of the peer computing devices; at least one server including code, which when executed by the at least one server locates at least one of the peer computing devices; and at least one mediator including code, which when executed by the at least on mediator collects information from at least some of the peer computing devices; wherein, the peer computing devices, at least one sever and at least one mediator are communicatively coupled via an at least carrier-grade telecommunications network being suitable for enhancing co-operation among the cooperating ones of the peer computing devices relative to best-efforts communications among the cooperating ones of the peer computing devices. | 05-12-2011 |
Wentao Zhu, Houston, TX US
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20150363948 | Direct Patlak Estimation from List-Mode PET Data - A medical imaging system for reconstructing quantitative dynamic nuclear medicine images of a subject may include a three dimensional positron emission tomography (3D PET) scanner and a data processing system. The three dimensional positron emission tomography (3D PET) scanner may: perform scans of the subject at each of multiple bed positions, each scan being of only a sub-portion of the subject that is within an axial length covered by the scanner; and generate dynamic list-mode PET data that: represents a total number of photon pairs arriving at each of multiple detector pairs in the 3D PET scanner; and is organized in a list of elements, each element in the list including a detector pair index and an arrival time for each detected photon pair; and acquires PET data using a dynamic PET protocol with at least two scans at each of the multiple bed positions. The data processing system may: reconstruct Patlak slope and intercept images of the subject over an axial length of the subject that exceeds the axial length of each scan of the subject by optimizing a likelihood or penalized likelihood function using the list-mode PET data from at least two scans of the subject at each of the multiple bed positions; and store the reconstructed image in a storage device or displays the reconstructed image on a display system. | 12-17-2015 |
Xianhuai Zhu, Sugar Land, TX US
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20130155814 | CRITICAL REFLECTION ILLUMINATIONS ANALYSIS - The illumination/imaging of a theorized target horizon that is below a theorized velocity contrast horizon where the velocity contrast horizon may represent the bottom of a salt dome by assessing the path of seismic energy for critical angle reflection/refraction and tabulates the successful paths and unsuccessful paths. For some subsurface locations, seismic energy will not reach the surface above the velocity contrast due to the shapes of the velocity contrast horizon and target horizon and the velocity model through which the studied waves propagate. Displays may be prepared and used for understanding illumination/imaging of the geology for drilling, reacquisition, and reprocessing to elicit information about subsurface geology that may have been overlooked or ignored. Future surveys avoid expensive surveying which cannot obtain useful seismic data as determined by the velocity contrast for the target locations due to the shapes of the horizons and the velocity model. | 06-20-2013 |
Xiaoming Zhu, Coppell, TX US
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20090049209 | ATA HDD Interface for Personal Media Player With Increased Data Transfer Throughput - This invention is a method allowing for interfacing high speed hard disk drives (ATA-HDD) in high throughput PIO modes to currently available digital media processors (DMP). The prescribed interface programs signals available in the DMP external memory interface (EMIF) functions to match the requirements of ATA-HDD PIO functions. Selected signal redefinition and minimal glue logic is employed to form a seamless link between the EMIF I/O of the digital media processor DMP and the ATA-HDD hard drive. | 02-19-2009 |
20100074550 | Multi Format Video Filter Design - Current generation digital media processors support multi-format video resolutions, SDTV, Progressive Scan and HDTV. Built-in video encoders directly support NTSC and progressive 480 P video outputs. These two video formats have different image bandwidth and output gain requirements, but are normally filtered by fixed bandwidth filters. This invention provides adjustable filter bandwidth for improved video filtering and solves the dilemma on filter bandwidth design for multi-format video applications. The invention is applicable to video reconstruction filter applications requiring bandwidth adjustable filters. | 03-25-2010 |
Xiaoqing Zhu, Austin, TX US
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20140211681 | SYSTEM AND METHOD FOR VIDEO DELIVERY OVER HETEROGENEOUS NETWORKS WITH SCALABLE VIDEO CODING FOR MULTIPLE SUBSCRIBER TIERS - A method is provided in one example and can include receiving a source data stream, generating a base layer sub-stream from the source data stream, and generating an enhancement layer sub-stream from the source data stream. The method further includes communicating the base layer sub-stream to a client device using a first communication protocol, and communicating the enhancement layer sub-stream to the client device using a second communication protocol. In a particular example, the one-to-many communication protocol is a multicast communication protocol and the second communication protocol is a unicast communication protocol. In another example, the base layer sub-stream is sent to the client device via a first network connection and the enhancement layer sub-stream is sent to the client device via a second network connection. | 07-31-2014 |
20140215085 | SYSTEM AND METHOD FOR ROBUST ADAPTATION IN ADAPTIVE STREAMING - A method is provided in one example embodiment and includes receiving media data at an adaptive streaming client; updating an estimated available bandwidth associated with a media stream associated with the media data; filtering the estimated available bandwidth; mapping the filtered estimated available bandwidth to a media bitrate for the media stream; and updating a target segment delay that is to control time intervals between consecutive segment downloads of the media stream. | 07-31-2014 |
20140244798 | TCP-Based Weighted Fair Video Delivery - Weighted fair sharing of video bandwidth may be provided, for example, over TCP. First, a number of connections with a receiver may be opened. The number of active connections may be proportional to a weighting parameter associated with a stream. Next, the stream may be transmitted over the number of active connections and feedback information may be obtained corresponding to the stream received at the receiver. A quality adaptation may then be made based on the obtained feedback. The process may be repeated over time with the number of active connections changing along with the weighting parameters. | 08-28-2014 |
20150067105 | HTTP STREAMING CLIENT ADAPTATION ALGORITHM BASED ON PROPORTIONAL-INTEGRAL CONTROL - In one embodiment, an HTTP streaming session may be initiated at a client device in a network. The client device may have a buffer and may be configured to request and receive one or more data segments over HTTP from an HTTP server. A first data segment at a first data source rate may be requested and subsequently received. The first data segment may be stored in the buffer. A second data source rate may then be calculated based on a storage level in the buffer, and a second data segment at the second data source rate may be requested. | 03-05-2015 |
20150295827 | UNIFIED CONGESTION CONTROL FOR REAL-TIME MEDIA SUPPORT - Various implementations disclosed herein enable congestion control systems and methods that are agnostic of the availability of congestion notification types, and are simultaneously responsive to multiple types of network congestion indicators—including both implicit (e.g., loss and delay) and explicit (e.g., marking) congestion indicators. For example, some implementations include a congestion control method that includes obtaining a composite congestion indicator value associated with multiple types of network congestion indicators, and determining a reference rate value based on a function of the composite congestion indicator value. The composite congestion indicator value represents a combination of one or more delay values associated with respective types of network congestion indicators. The reference rate value is representative of a baseline transmission rate from the first device that at least partially mitigates network congestion signaled by the network congestion indicators. | 10-15-2015 |
20160028594 | Generating and Utilizing Contextual Network Analytics - Previously known network management practices fail to inform network operators about client-side performance and experience issues. By contrast, various implementations disclosed herein include systems, methods and apparatuses that generate one or more shared-resource traffic quality indicator values. Each shared-resource traffic quality indicator value characterizes at least a portion of the network by assessing a number of network performance characterization values in relation to one or more capacity values of one or more shared network resources. Each network performance characterization values provides a corresponding quantitative characterization of a quality of experience associated with the use of media content data received by a respective client device. In some implementations, quality of experience is characterized by at least one of an indication of perceptual quality of media content data and an indication of continuity with which media content data is used by a respective client device at a particular subscription tier. | 01-28-2016 |
20160028595 | Quality of Experience Based Network Resource Management - Previously known network management methods are incapable of concertedly managing respective levels of perceptual playback quality of media content data for a number client devices. In particular, previously known methods fail to regulate ABR-enabled client devices and the like that are each operating to individually consume as much of one or more shared network resources as possible without regard to the degree performance improvements. By contrast, various implementations disclosed herein provide network-centric concerted management of respective levels of perceptual playback quality of media content data on each of a number of client devices. The respective levels perceptual playback quality are concertedly managed by adjusting one or more shared network resources (e.g., bandwidth, processor time, memory, etc.). Adjustments are made in response to an aggregate quality of experience (QoE) metric characterizing a distribution of QoE levels for the client devices sharing the one or more shared network resources. | 01-28-2016 |
20160028647 | Management of Heterogeneous Client Device Groups - Various implementations disclosed herein enable client devices to share a network resource in order to produce more evenly distributed perceptual playback quality levels within each subscription tier. Sharing of a network resource is facilitated by providing client devices with one or more QoE distribution indicator values, which enables client device participation in the allocation of the network resource. In some implementations, a client device method includes determining a local QoE level value, and then modifying a representation selection of media content data based on the local QoE and one or more QoE distribution indicator values. The local QoE level value characterizes perceptual playback quality of media content data received by the client device using the shared network resource. The QoE distribution indicator values characterize at least in part the relative QoE values associated with a plurality of client devices sharing the shared network resource with the client device. | 01-28-2016 |
20160028651 | Joint Quality Management Across Multiple Streams - Various implementations disclosed herein enable a more efficient allocation of one or more shared network resources amongst a plurality of client devices based on media content complexity and client device resource status in order to better manage perceptual playback quality. In some implementations, a method includes obtaining a plurality of resource constraint values associated with a plurality of client devices sharing a network resource, and jointly determining a respective encoding rate level selection and a corresponding resource allocation for each of the plurality of client devices based on a combination of one or more resource constraint values and the assessment of the respective perceptual quality level values, such that a combination of resulting quality levels satisfies a joint quality criterion. | 01-28-2016 |
Xiaowei Zhu, Plano, TX US
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20100157642 | MITIGATION OF CHARGE SHARING IN MEMORY DEVICES - One embodiment relates to a memory element disposed on a substrate. The memory element includes first and second interlocked data storage elements adapted to cooperatively store the same datum. An output of the first data storage element is coupled to an input node of the second data storage element. An output of the second data storage element is coupled to an input of the first data storage element. An isolation element in the substrate is arranged laterally between storage nodes of the first and second data storage elements. The isolation element is arranged to limit charge sharing between the storage nodes of the first and second data storage elements. Other methods and systems are also disclosed. | 06-24-2010 |
Xinfa Zhu, Dallas, TX US
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20140133273 | FRACTURE CHARACTERIZATION FROM REFRACTION TRAVEL TIME DATA - Refracted energy travel time can help to derive anisotropic parameters in a target layer. These anisotropic parameters allow us to both explore for new reservoirs and to understand stress and fracturing in existing reservoirs. This information can be used to i) detect oil reservoirs, ii) spot naturally fractured, hence high production zones, iii) detect dominant natural stress directions, iv) better place horizontal wells to optimize production, v) monitoring man made fractures or induced directional stress changes. The method is demonstrated using synthetic and real data. | 05-15-2014 |
Xiqun Zhu, Houston, TX US
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20110025129 | REDUNDANT POWER SUPPLY SYSTEMS AND METHODS - A redundant power supply method is provided. The method includes communicatively coupling a load to a first source via a plurality of first power supplies and to a second source via a plurality of second power supplies. The method further includes bi-directionally communicatively coupling a controller to the plurality of first power supplies and to the plurality of second power supplies. The method includes activating a first portion of the plurality of first power supplies to supply power to the load, wherein the controller determines the number (“N”) of first power supplies activated, and activating at least one of the plurality of second power supplies to supply power to the load. The method also includes monitoring for at least one fault condition in each of the active first power supplies and in each of the active second power supplies. | 02-03-2011 |
20120007430 | REDUNDANT POWER SUPPLY SYSTEMS AND METHODS - A redundant power supply method is provided. The method includes communicatively coupling a load to a first source via a plurality of first power supplies and to a second source via a plurality of second power supplies. The method further includes bi-directionally communicatively coupling a controller to the plurality of first power supplies and to the plurality of second power supplies. The method includes activating a first portion of the plurality of first power supplies to supply power to the load, wherein the controller determines the number (“N”) of first power supplies activated, and activating at least one of the plurality of second power supplies to supply power to the load. The method also includes monitoring for at least one fault condition in each of the active first power supplies and in each of the active second power supplies. | 01-12-2012 |
Xiqun Zhu, Austin, TX US
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20130002368 | Circuits and Methods for Providing an Impedance Adjustment - An apparatus includes a signal generator and a control circuit. The signal generator includes a control terminal and includes a current electrode coupled to a terminal that is configured to couple to a power line to receive direct current (DC) power from a power generator. The control circuit is coupled to the current electrode and the control terminal of the signal generator. The control circuit determines an impedance associated with the power generator and applies a control signal to the control terminal of the signal generator to produce an impedance adjustment signal on the current electrode for communication to the power generator through the power line in response determining the impedance. | 01-03-2013 |
Xu Zhu, Allen, TX US
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20080218291 | System and method for a digitally tunable impedance matching network - The present disclosure relates generally to digitally tunable impedance matching networks. In one example, a digitally tunable impedance matching network is configured to produce an overall reactance value of approximately X, and includes multiple reactive components that are configured to produce a reactance value in the range of approximately zero to X with a minimum resolution of approximately X/2 | 09-11-2008 |
20110065472 | Apparatus and method for an integrated multi-mode multi-band power amplifier - An apparatus and method for amplifying a transmission signals in multiple modes and multiple bands. The apparatus includes a tunable power amplifying module adapted to receive a plurality of signal types comprising multiple modes and multiple bands. The tunable power amplifying module includes a first and second power amplifier stages and a number of tunable matching networks configured to optimize an impedance value based on the mode and band of the signal to be amplified. | 03-17-2011 |
20120056677 | APPARATUS AND METHOD FOR A TUNABLE MULTI-MODE MULTI-BAND POWER AMPLIFIER MODULE - An apparatus and method amplify a signal for use in a wireless network. The apparatus includes a power amplifier, an envelope modulator, a tunable matching network (TMN), and a controller. The power amplifier outputs the signal at an output power. The envelope modulator controls a bias setting for the power amplifier. The TMN includes a plurality of immittance elements. The controller is operably connected the envelope modulator and the TMN. The controller identifies a desired value for the output power of the power amplifier, controls the output power of the power amplifier by modifying the bias setting of the power amplifier, and sets a number of the plurality of immittance elements based on the bias setting of the power amplifier. | 03-08-2012 |
20120200352 | APPARATUS AND METHOD FOR AN INTEGRATED MULTI-MODE MULTI-BAND POWER AMPLIFIER - An apparatus and method for amplifying a transmission signals in multiple modes and multiple bands. The apparatus includes a tunable power amplifying module adapted to receive a plurality of signal types comprising multiple modes and multiple bands. The tunable power amplifying module includes a first and second power amplifier stages and a number of tunable matching networks configured to optimize an impedance value based on the mode and band of the signal to be amplified. | 08-09-2012 |
20150066413 | METHOD FOR CORRECTING ERRORS ASSOCIATED WITH ASYNCHRONOUS TIMING OFFSETS BETWEEN TRANSMIT AND RECEIVE CLOCKS IN MRI WIRELESS RADIOFREQUENCY COILS - A method and apparatus correcting errors associated with timing offsets in radiofrequency coils. The method and apparatus include a memory element and a controller. The controller is configured to execute a set of instructions to receive data of a plurality of signals, the plurality of signals comprising at least one projection echo. The controller is also configured to identify a plurality of offsets of the plurality of signals based on the at least one projection echo. The controller is also configured to apply the plurality of offsets to a k-space of the plurality of signals. | 03-05-2015 |
Yanwu Zhu, Austin, TX US
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20110079748 | Exfoliation of Graphite Oxide in Propylene Carbonate and Thermal Reduction of Resulting Graphene Oxide Platelets - Disclosed are compositions and methods wherein graphite oxide was exfoliated and dispersed in propylene carbonate (PC) by bath sonication. Heating the graphene oxide suspensions at 150° C. significantly reduced the graphene oxide platelets; paper samples comprised of such reduced graphene oxide platelets had an electrical conductivity of 5230 S/m. By adding TEA BF | 04-07-2011 |
20110080689 | Ionic Liquids for Use in Ultracapacitor and Graphene-Based Ultracapacitor - One embodiment of the current disclosure provides an ultracapacitor including at least one graphene-based electrode, an electrolyte containing an ionic liquid, and a dielectric separator dividing the ultracapacitor into two chambers, each chamber containing an electrode and a portion of the electrolyte. In another embodiment, the graphene has been expanded by exposure to microwave radiation then chemically activated. Another embodiment of the current disclosure provides an electrochemical energy storage device containing such an ultracapacitor. Still other embodiments of the disclosure relate to ionic liquids, some of which may be suitable for use in an ultracapacitor, methods of synthesizing such liquids, and methods of designing such liquids. Further embodiments relate to methods of using ultracapacitors, for example in automobiles, power grids, high-temperature applications, and other applications. | 04-07-2011 |
20130235509 | ULTRACAPACITOR WITH A NOVEL CARBON - Disclosed is a carbon material that can be useful, for example, in ultracapacitors. Also disclosed are applications and devices containing the carbon material. | 09-12-2013 |
Yaping Zhu, Katy, TX US
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20100326669 | METHOD FOR GENERATING ANISOTROPIC RESISTIVITY VOLUMES FROM SEISMIC AND LOG DATA USING A ROCK PHYSICS MODEL - A hydrocarbon exploration method is disclosed for generating anisotropic resistivity models of a subsurface reservoir from seismic and well data using a rock physics model. In one embodiment, the method comprises: selecting wells within a region of interest ( | 12-30-2010 |
20110108283 | Method For Remote Identification And Characterization of Hydrocarbon Source Rocks Using Seismic and Electromagnetic Geophysical Data - Method for assessing hydrocarbon source rock potential of a subsurface region without well log information. The method uses surface electromagnetic ( | 05-12-2011 |
20130013209 | PREDICTING ANISOTROPIC SOURCE ROCK PROPERTIES FROM WELL DATA - Method for predicting physical properties of a source rock formation wherein an inclusion-based ( | 01-10-2013 |
20150301223 | System and Method for Predicting Rock Strength - A system and method to predict rock strength by directly inverting for petrophysical properties. In one embodiment, seismic data is received or obtained from a seismic survey (step | 10-22-2015 |
Yi Zhu, Plano, TX US
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20120114805 | SALTED FOOD PRODUCT - The invention allows for a reduction in the amount of salt topically applied to a food product with an oil layer on its outer surface, without adversely affecting the taste of the food product. Salt particles with a particle size greater than the thickness of the oil layer are topically applied to the food product. Because substantially all of the salt particles protrude from the oil layer, they provide a saltiness perception having no meaningful difference from the saltiness perception provided by a control salt applied at higher levels. | 05-10-2012 |
Yuduo Zhu, Grand Prairie, TX US
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20090098388 | MOISTURE CURABLE ISOCYANATE CONTAINING ACRYLIC FORMULATION - A moisture curable acrylic formulation is provided inclusive of a majority by weight polyacrylic prepolymer. The prepolymer has an average molecular weight of between 3,000 and 6,000 grams per mole and between 2 and 4 moisture curable functional moieties of isocyanate or silane per prepolymer. A thermoplastic adhesive resin is also included within the formulation. When the prepolymer functional moieties are all silane, the thermoplastic adhesive resin is ethylene vinyl acetate resin. A silane molecule is provided within the formulation as an adhesion promoter and also affords a degree of storage stability through sacrificial reaction with water during storage. The resultant formulation achieves a shear strength of at least 10 pounds per square inch when applied to a thickness of 0.75 millimeters between a glass substrate and a vinyl article 15 minutes after application at 120° Celsius in ambient atmospheric air. The formulation is well suited for the formation of a window assembly when applied intermediate between a substrate and a window article. | 04-16-2009 |
20090099311 | POLYACRYLIC MOISTURE CURABLE COPOLYMER - A polyacrylic polymer is provided that is formed by moisture cure of multiple acrylic prepolymer segments. The prepolymer segments each have an average molecular weight of between 5000 and 400,000 grams per mole. Each of the prepolymers is a homopolymer or copolymer of a monomer from among methyl methacrylate, C | 04-16-2009 |
Yujie Zhu, Frisco, TX US
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20100130129 | WLAN and bluetooth harmonization - Described is a WLAN/BT system with improved compatibility. It employs an adaptive algorithm that dynamically optimizes the WLAN data fragmentation size based on the current WLAN data rates such that the fragmented data packets fit the time slots allowed by the BT SCO stream gaps. The algorithm first uses system level information to acquire the concurrent BT traffic types to decide if TDM method needs to be enabled. Then it uses the smoothed WLAN date rate to calculate maximum fragmentation packet size consistent with current overall WLAN traffic. | 05-27-2010 |
Yuming Zhu, Plano, TX US
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20090089556 | High-Speed Add-Compare-Select (ACS) Circuit - A high speed add-compare-select (ACS) circuit for a Viterbi decoder or a turbo decoder has a lower critical path delay than that achievable using a traditional ACS circuit. According to one embodiment of the invention, the path and branch metrics are split into most-significant and least-significant portions, such portions separately added in order to reduce the propagation delay. | 04-02-2009 |
20090282316 | Memory Access in Low-Density Parity Check Decoders - Low Density Parity Check (LDPC) decoder circuitry in which memory resources are realized as single-port memory. The decoder circuitry includes a single port memory for storing log-likelihood ratio (LLR) estimates of input node data states for individual rows of a parity check matrix. The decoder circuitry also includes multiple instances of single-port column sum memories, which store updated LLR estimates for each input node. In each case, the memory resources include logic circuitry that executes at least one write cycle and one read cycle to the memory within each decoder cycle. Because the decoder cycle time is much longer than the necessary memory cycle time, particularly in LDPC decoding, data can be written to and read from single-port memory resources in ample time for the decoding operation. | 11-12-2009 |
20100115386 | Scalable Folded Decoder Architecture for Low Density Parity Check Codes - A layered message updating method and system for the decoding of LDPC codes with high sub-matrix degree has a scalable foldable and flexible decoder architecture to support LDPC codes with arbitrary high sub-matrix degree with very small hardware overhead and high throughput. Embodiments of the invention support LDPC codes with sub-matrix degree W=>1. | 05-06-2010 |
20100122142 | Scalable Decoder Architecture for Low Density Parity Check Codes - A layered message updating method and system for the decoding of LDPC codes with high sub-matrix degree has a scalable and flexible decoder architecture to support LDPC codes with arbitrary high sub-matrix degree with very small hardware overhead and high throughput. Embodiments of the invention support LDPC codes with sub-matrix degree W>=1. The architecture does not require duplication of extrinsic memory which greatly reduces decoder complexity. The size of the memory is also independent of sub-matrix degree which makes the decoder scalable for large W values. | 05-13-2010 |
20150278008 | CRC-BASED FORWARD ERROR CORRECTION CIRCUITRY AND METHOD - A communication system includes digital transmitter circuitry ( | 10-01-2015 |
Zheng Zhu, Austin, TX US
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20090177709 | Method and system for managing a distributed transaction process - Systems and methods for managing a distributed transaction process include an active transaction manager that manages transactions with an active database, a latent transaction manager that manages transactions with a merge database, a transaction log that reflects the set of transactions in the active database that are not affiliated with the transactions in the merge database, and a merge manager that uses the transaction log to determine whether to transfer control of the merge database to the active transaction manager. Systems and methods may further instruct the active transaction manager to halt transactions with the active database while the merge database is updated to reflect a set of transactions affiliated with the set of transactions in the transaction log, and instruct the active transaction manager to subsequently manage transactions to the active database and the merge database. | 07-09-2009 |
20130124429 | SYSTEMS AND METHODS FOR ELECTRONICALLY PROCESSING GOVERNMENT SPONSORED BENEFITS - Systems and methods for processing benefits include providing a graphical user interface, such as a web browser, to a benefit recipient for accessing at least account information concerning at least one benefit type. The benefits processing system may receive a request from the benefit recipient through the graphical user interface for displaying the at least account information concerning the at least one benefit type. The benefits processing system may then display the at least account information through the graphical user interface concerning the at least one benefit type. | 05-16-2013 |
Zhipeng Zhu, Austin, TX US
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20100117703 | MULTI-MODE SINGLE-ENDED CMOS INPUT BUFFER - Techniques reduce the effects of power supply noise on a signal provided by a single-ended complementary metal-oxide semiconductor (i.e., CMOS) input buffer circuit capable of receiving an input signal having one of a variety of acceptable formats, while generating the signal to have substantially the same duty cycle as the input signal. The techniques include one or more of AC coupling, hysteresis, and voltage biasing applied to the input buffer circuit. | 05-13-2010 |