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Xuefeng Wang

Xuefeng Wang, Schenectady, NY US

Patent application numberDescriptionPublished
20090159409MEMS MICROSWITCH HAVING A DUAL ACTUATOR AND SHARED GATE - In accordance with one aspect of the present invention, a MEMS switch is provided. The MEMS switch includes a substrate, a first and a second actuating element electrically coupled together, an anchor mechanically coupled to the substrate and supporting at least one of the first and second actuating elements, and a gate driver configured to actuate the first and second actuating elements.06-25-2009
20090159410MEMS MICROSWITCH HAVING A CONDUCTIVE MECHANICAL STOP - A MEMS switch includes a substrate, a movable actuator coupled to the substrate, a substrate contact, a substrate electrode, and a conductive stopper electrically coupled to the movable actuator and structured to prevent the movable actuator from contacting the substrate electrode while allowing the movable actuator to make contact with the substrate contact.06-25-2009
20090160584MEMS SWITCH WITH IMPROVED STANDOFF VOLTAGE CONTROL - A MEMS switch is provided including a substrate, a movable actuator coupled to the substrate and having a first side and a second side, a first fixed electrode coupled to the substrate and positioned on the first side of the movable actuator to generate a first actuation force to pull the movable actuator toward a conduction state, and a second fixed electrode coupled to the substrate and positioned on the second side of the movable actuator to generate a second actuation force to pull the movable actuator toward a non-conducting state.06-25-2009
20100155203MICRO-ELECTROMECHANICAL SYSTEM SWITCH - A micro electromechanical system switch having an electrical pathway is presented. The switch includes a first portion and a second portion. The second portion is offset to a zero overlap position with respect to the first portion when the switch is in open position (or in the closed position depending on the switch architecture). The switch further includes an actuator for moving the first portion and the second portion into contact.06-24-2010
20100156577MICRO-ELECTROMECHANICAL SYSTEM SWITCH - A micro electro-mechanical system switch is presented. The switch includes a base substrate having a support surface. An actuating surface having a notch and an electrical contact surface having an extension is provided. The extension is disposed within the notch. A beam is attached to the base substrate. The beam includes an actuatable free end that is configured to flex upon actuation and to make contact with at least a portion of the extension and carry current therethrough.06-24-2010
20110036690SWITCH STRUCTURES - A device, such as a switch structure, is provided, the device including a contact and a conductive element. The conductive element can be configured to be selectively moveable between a non-contacting position, in which the conductive element is separated from the contact (in some cases by a distance less than or equal to about 4 μm, and in others by less than or equal to about 1 μm), and a contacting position, in which the conductive element contacts and establishes electrical communication with the contact. When the conductive element is disposed in the non-contacting position, the contact and the conductive element can be configured to support an electric field therebetween with a magnitude of greater than 320 V μm02-17-2011
20110075537HOLOGRAPHIC DISC WITH IMPROVED FEATURES AND METHOD FOR THE SAME - An improved holographic data storage disc is provided. The holographic data storage disc includes multiple multimedia content, wherein at least one of the multimedia is locked via one or more cryptographic keys.03-31-2011
20110129863METHODS AND SYSTEMS FOR PROCESSING SAMPLES ON POROUS SUBSTRATES - Methods and systems for processing samples fixed to a porous substrate generally comprising, a compressor defining one or more fluid isolation areas, a support, for the porous substrate, having an opening corresponding to one or more of the fluid isolation areas of the compressor, an actuator that causes at least a portion of the compressor to press against the porous substrate, a fluid inlet having access to the fluid isolation area at least when the compressor is pressed against the porous substrate, and a fluid outlet to receive fluid, through the opening in the support corresponding to the fluid isolation area of the compressor, at least when the compressor is pressed against the porous substrate.06-02-2011
20110267933CODING FOR OPTICAL STORAGE SYSTEMS WITH MULTIPLE READER HEADS AND MULTIPLE OPTICAL DISKS - Provided are methods and systems of encoding and decoding techniques in an optical storage system having a multi-head detector. In one embodiment, source data may be encoded using error correction coding (e.g., turbo coding) techniques, and the encoded data may be interleaved and distributed to more than one detector head of the multi-head detector. Data recorded in an optical disc may be retrieved by the multi-head detector, and a read data from more than one detector head may be concurrently decoded to retrieve estimates of the original information in the source data. Further, more than one encoder/decoder may be used, and each encoder/decoder may encode or decode data from multiple data heads. Some embodiments also include replicating multiple discs.11-03-2011
20120092980REPLICATION AND FORMATTING METHOD AND SYSTEM FOR BIT-WISE HOLOGRAPHIC STORAGE - The present techniques provide methods and systems for recording micro-holograms on a holographic disk using a plurality of counter-propagating light beams in parallel. The parallel counter-propagating light beams overlap to form interference patterns on a data layer and over multiple data tracks in the holographic disk. Rotating the disk enables the parallel recording of micro-holograms over multiple data tracks, thus reducing recording time. Further, the illumination pattern may include illuminated spots and non-illuminated regions, such that each illumination spot may cover a relatively small fraction of the data layer plane, possibly controlling the depth spread of the recorded micro-hologram. In some embodiments, data in the parallel signal beams may be retrieved from a master holographic disk or may be modulated into the parallel signal beams.04-19-2012
20120127843SERVOING SYSTEM FOR MASTER WITH PARALLEL TRACKS IN A HOLOGRAPHIC REPLICATION SYSTEM - Techniques are provided for controlling the reading of optical data from a master disk in a holographic replication system. Imperfections in the master disk or movement of the disk during a recording process may cause source beams to deviate from target data tracks. In some embodiments, a detector system is used to determine the focus and alignment of the source beams on the master disk, as well as the tilt and rotation of the disk with respect to the holographic replication system. The detector system may detect deviations in the intensity distribution of the reflections of the source beams and generate an error signal corresponding to focusing, tracking, tilt, and/or rotational errors. Servo-mechanical devices may actuate optical components to compensate for such errors.05-24-2012
20120136268PHOTO-IONIZATION DETECTORS AND ASSOCIATED METHODS THEREOF - A photo ionization detector (PID) is provided for selectively determining various compounds or gases present in a breath sample. The PID, comprises a substrate comprising a gas ionization chamber, at least one pair of ion sensing electrodes, and at least one amplifying circuit; and an ultraviolet (UV) ionization source to transmit a UV light beam into the gas ionization chamber. A system comprises the PID is also provided. A method of detecting a response pattern for various compounds or gases in breath using PID is also provided.05-31-2012
20120163140MULTI-STAGE FOCUS ACTUATOR AND OPTICAL HEAD - Techniques are provided for using a multi-stage actuator to actuate one or more optical components of an optical head. The multi-stage actuator includes a cross-layer displacement component which actuates an optical component to change the beam focus in a displacement range corresponding to the thickness of the data layers in a holographic disk, such that a beam is impinged on the target data layer. The multi-stage actuator also includes a intra-layer focusing component which actuates the optical component in a smaller range to focus the beam on the target data position. The cross-layer displacement component and the intra-layer focusing component may each include more than one actuator. In some embodiments, the focusing component also actuates the optical component in a tilting motion to compensate for movement or imperfections of the disk during a reading or recording process.06-28-2012
20120170438SERVO STRUCTURE IN SINGLE-BIT HOLOGRAPHIC VOLUME RECORDING AND READOUT - Methods and systems are provided for recording micro-holograms in a holographic disk. Disk tilting or disk imperfections may cause counter-propagating recording and reference beams to deviate from the target data position in the disk. In some embodiments, a tracking beam is directed to a tracking position in the disk, and deviation of the tracking beam from the tracking position may indicate tracking and/or focusing errors of the recording and/or reference beams. A detector may generate an error signal in response to such errors. A first servo-mechanical system may actuate a first optical head (e.g., transmitting the reference and tracking beams) to compensate for such errors, and a second servo-mechanical system may actuate a second optical head (e.g., transmitting the recording beam) to follow the actuation of the first servo system, such that an interference of the reference beam and the recording beam may be maintained in the target data position.07-05-2012
20120277613METHODS OF INTRAVENOUS DRUG MONITORING - A method of monitoring a concentration of an anesthetic drug using a patient's breath is provided. The method comprises forming a breath sample using the patient's breath; exposing one or more sensors to the breath sample; detecting one or more components of the anesthetic drug in the breath sample; measuring a concentration of at least one of the components of the anesthetic drug in the breath sample; and determining a concentration of the component in a plasma of the patient using a transfer function and the concentration of the component in the breath sample.11-01-2012
20140248714METHODS AND SYSTEMS FOR PROCESSING SAMPLES ON POROUS SUBSTRATES - Methods and systems for processing samples fixed to a porous substrate generally comprising, a compressor defining one or more fluid isolation areas, a support, for the porous substrate, having an opening corresponding to one or more of the fluid isolation areas of the compressor, an actuator that causes at least a portion of the compressor to press against the porous substrate, a fluid inlet having access to the fluid isolation area at least when the compressor is pressed against the porous substrate, and a fluid outlet to receive fluid, through the opening in the support corresponding to the fluid isolation area of the compressor, at least when the compressor is pressed against the porous substrate.09-04-2014

Patent applications by Xuefeng Wang, Schenectady, NY US

Xuefeng Wang, Dongguan CN

Patent application numberDescriptionPublished
20110003864CRYSTALLINE 1-(3-FLUOROPHENYL)-5-METHYL-2-(1H)PYRIDONE, THE PREPARATION METHODS, COMPOSITIONS AND APPLICATIONS THEREOF - Crystalline pyridone compound, which is the white needle crystal containing no water and other crystallization solvents. Its unit cell belongs to monoclinic system and has space group of P201-06-2011

Xuefeng Wang, Beijing CN

Patent application numberDescriptionPublished
20100260930DETACHABLE FRAMEWORK USED FOR WINDING OPTICAL FIBER COIL AND A METHOD OF PRODUCING OPTICAL FIBER COIL - A detachable framework used for winding optical fiber coils and a method of producing optical fiber coils with this framework. A framework with a suitable structure is designed considering comprehensively three factors, i.e., the window ratio of an optical fiber coil, the precision of an optical fiber gyro and the easy detachment of the framework from the optical fiber coil. A surface treatment with the framework is performed by coating a layer of thermosol on the surface of the framework so the optical fiber coil can be easily detached from the framework after curing. The required length of optical fiber is winded around the optical fiber coil framework, accompanying with vacuum pressure impregnating with curing adhesive after winding and optical fiber coil curing subsequently. The framework is taken off from the optical fiber coil under the heating circumstances, thereby completing production of the non-framework optical fiber coil.10-14-2010
20130076338ELECTRO-OPTIC EFFECT BASED OPTICAL VOLTAGE TRANSFORMER - An electro-optic effect based optical voltage transformer comprises an optical voltage sensor head and an electrical unit, wherein the electrical unit comprises an optical closed-loop feedback control unit and a signal processing unit, the optical closed-loop feedback control unit is connected to the optical voltage sensor head and the optical voltage sensor head is connected to the signal processing unit. In this invention, the light source output power is more stable, the light source center wavelength drift is effectively controlled and the output power coastdown caused by light source aging is prevented; the optical power fluctuation of the optical polarization caused by factors such as temperature, optical fiber vibration, etc., is eliminated, which is conductive to stability and reliability of the optical system; the accuracy of data is improved.03-28-2013
20150360544VEHICLE AIR CONDITIONER DEVICE - The present invention relates to a vehicle air conditioner device, comprising: an air purifying unit for regulating air quality inside the vehicle; an inside air quality acquiring unit for acquiring air quality inside the vehicle; an outside air quality acquiring unit for acquiring air quality outside the vehicle; and a display unit for displaying information related to the acquired air quality inside the vehicle and information related to the acquired air quality outside the vehicle.12-17-2015

Patent applications by Xuefeng Wang, Beijing CN

Xuefeng Wang, West Lafayette, IN US

Patent application numberDescriptionPublished
20080304073Method and apparatus for conjugate quadrature interferometric detection of an immunoassay - A detection system for detecting target material is provided. The system comprises a photonic structure having a reflectance-band and associated side bands; an illumination source for illuminating at a wavelength in at least one of an edge of the reflectance-band and the side bands of the photonic structure and for generating a return beam; a detector system having an intensity-sensitive channel configured to detect an in-line signal from the return beam and a phase-sensitive channel configured to detect a differential phase contrast signal from the return beam; and a processing system for receiving and adding in quadrature the in-line signal and the differential phase contrast signal to generate a joint signal, and for determining one of the presence or the absence of the target material on the photonic structure using the joint signal.12-11-2008
20100145627SYSTEM WITH EXTENDED RANGE OF MOLECULAR SENSING THROUGH INTEGRATED MULTI-MODAL DATA ACQUISITION - A multi-modal data acquisition system for detecting target material on a biological reaction surface, the system comprising a radiation source for generating an incoming beam that impinges on the biological reaction surface at an oblique incidence angle and produces a reflected beam, an interferometric detector for detecting an interferometric signal from the illuminated surface, the reflected beam being directed to the interferometric detector, a fluorescence detector for detecting a fluorescence signal from the illuminated surface; the fluorescence detector being positioned to substantially minimize the incidence of the reflected beam; and a processing system for receiving the interferometric and fluorescence signals and determining the presence or absence of target material on the biological reaction surface. A reaction surface conditioned for the simultaneous collection of fluorescence, interferometric and other signals. A multi-modal data acquisition system for collecting and processing additional modes, including multiple interferometric, fluorescence and scattering channels.06-10-2010

Xuefeng Wang, Niskayuna, NY US

Patent application numberDescriptionPublished
20110242958SYSTEM AND METHOD FOR TRANSFER OF DATA STORED IN HOLOGRAPHIC STORAGE MEDIUM - A system for processing information is provided. The system includes multiple micro-holograms contained in multiple volumes arranged along multiple tracks in one or more storage mediums. Each of the micro-hologram includes a data. The system also includes one or more pick-up head devices with optical lenses for directing laser beams on the multiple tracks. Further, the system includes a subsystem for arranging the one or more pick-up head devices for recording and retrieving of the data from the one or more storage mediums.10-06-2011
20120026855METHOD AND SYSTEM FOR PROCESSING INFORMATION FROM OPTICAL DISK LAYERS - A method for processing information is provided. The method includes directing a laser beam to a first track of a first layer of a holographic storage medium. The method also includes recording a base voltage based on a look-up table. The method includes directing the laser beam to a target track in the first layer, based on position information in tracks. Further, the method includes recording an offset voltage for the target track into the look-up table. Still further, the method includes directing the laser beam to a target layer based on position information in vertical wobbles. The method also includes recording an offset voltage for the target layer into the look-up table. Finally, the method includes determining a final voltage based on the look-up table and applying the final voltage to an actuator for moving the laser beam to a final target position in the holographic storage medium for recording and retrieval of information.02-02-2012
20120134251SYSTEM AND METHOD FOR PRECISE SERVOING - A method for servoing when reading out a recorded holographic disk or recording in a preformatted holographic disk is disclosed. The method includes detecting a primary signal of a reflected primary beam from a target data track of a target data layer of the holographic disk, wherein the primary beam of radiation has a first wavelength. The method also includes comparing a power measurement of the primary signal with a threshold value of power. The method also includes detecting a tracking signal of a reflected tracking beam from a reference layer of the holographic disk in an event that the power measurement of the primary signal is below the threshold value of power, wherein the tracking beam of radiation has a second wavelength. The method also includes generating a servo error signal based upon the primary signal or the tracking signal. The method further includes actuating an optical sub-system based upon either of the primary servo error signal or the tracking servo error signal such that the primary beam focuses on the target data layer.05-31-2012
20130168548ION-BASED BREATH ANALYSIS SYSTEM - Disclosed embodiments include systems for analyzing the breath of a patient for the presence of one or more analytes of interest. The systems may include an ion detection system capable of receiving a gas mixture having an analyte of interest expired by a patient, flowing the gas mixture, and ionizing molecules within the gas mixture. The molecules include at least the analyte of interest. The ion detection system is also capable of detecting the ionized analyte of interest.07-04-2013
20140026639SYSTEM AND METHOD FOR PHOTOACOUSTIC GAS ANALYSIS - A system for analyzing gas concentrations in a gas mixture includes an array of semiconductor light sources which are configured to generate an electromagnetic radiation having a narrow bandwidth. A controller modulates the electromagnetic radiation at a modulating frequency to provide light pulses at an absorption wavelength of at least one target gas. The system also includes an acoustic resonant gas chamber to hold the gas mixture and configured to receive the light pulses and amplify acoustic signals emanating from the gas mixture. A processor determines a concentration of the target gas based on acoustic signals.01-30-2014
20160023206SAMPLE COLLECTION AND TRANSFER DEVICE - An integrated device for a sample collection and transfer is provided. The integrated device comprises a capillary channel disposed between a first layer and a second layer, wherein the first layer comprises a hydrophilic layer comprising a fluid inlet for receiving a sample fluid to the capillary channel, wherein the capillary channel comprises an inner surface and an outer surface and an outlet for driving out the sample fluid. The device further comprises an interface assembly comprising: a third layer, a fourth layer, a fifth layer, and a flow path. The interface assembly is disposed on the outer surface of the capillary, at a determining position relative to the outlet, such that the capillary is in contact with the third layer of the interface assembly and the outlet is in contact with the flow path of the interface assembly for driving out the sample fluid from the integrated device.01-28-2016
20160023209SAMPLE COLLECTION AND TRANSFER DEVICE - An integrated device for a sample collection and transfer is provided. The integrated device comprises a capillary channel disposed between a first layer and a second layer, wherein the first layer comprises a hydrophilic layer comprising a fluid inlet for receiving a sample fluid to the capillary channel, wherein the capillary channel comprises an inner surface and an outer surface; and an outlet for driving out the sample fluid. The device further comprises a third layer comprising an adhesive material such as a patterned adhesive material, and a flow path, wherein the third layer is disposed on the outer surface of the capillary, at a determining position relative to the outlet, such that the capillary is in contact with the third layer and the outlet is in contact with the flow path of the third layer for allowing the sample fluid out from the integrated device.01-28-2016

Patent applications by Xuefeng Wang, Niskayuna, NY US

Xuefeng Wang, Cupertino, CA US

Patent application numberDescriptionPublished
20110296336SIDE TAB NAVIGATION AND PAGE VIEWS PERSONALIZATION SYSTEMS AND METHODS - Systems and methods for displaying tab elements representing viewable page elements. A set of one or more main tabs are displayed on a first portion of a display, each main tab defining a link to a database object stored in a database. A user selection of a first one of the main tabs is received (e.g., to determine which tab provides default display), and two or more side tabs are displayed in a first, default order on a second portion of the display, each said side tab defining a link to an element or portion of a first object. In certain aspects, a user selection of a new order for the two or more side tabs is received, and thereafter the two or more side tabs are displayed in the new order, and the new order is stored to the database, wherein upon later access of the first object by the user, the two or more side tabs are automatically displayed in the new order.12-01-2011
20140237414TAB NAVIGATION AND PAGE VIEW PERSONALIZATION - In some implementations, a system causes a set of main tabs to be displayed at a first portion of a display. The system is configured to receive a user selection of a selected main tab. In response, the system causes a set of secondary tabs to be displayed at a second portion of the display. The system is configured to receive user input to manipulate the secondary tabs causing a rearrangement of the secondary tabs into a new order and/or causing one or more of the secondary tabs to be hidden. Based on the user input, the system causes the manipulated set of secondary tabs to be displayed and stores information defining the manipulated set of secondary tabs. Upon a subsequent access by the user of a database object associated with the selected main tab, the system causes the manipulated set of secondary tabs to be displayed.08-21-2014

Xuefeng Wang, Halethorpe, MD US

Patent application numberDescriptionPublished
20140123787GEARED INFINITELY VARIABLE TRANSMISSION - An infinitely variable transmission (IVT) to provide a continuous output-to-input speed ratio from zero to a certain value is designed, and its working principle is illustrated. It is a geared IVT (GIVT), since its function to achieve the continuously varied speed ratio is implemented by gears. Crank-slider systems are used in the GIVT; the output-to-input speed ratio is changed with the crank length. Racks and pinions, whose motion is controlled by planetary gear sets, are used to change the crank length when the cranks are rotating. One-way bearings are used to rectify the output speeds from different crank-slider systems to obtain the output speed of the GIVT. Since the crank-slider systems can introduce variations of the instantaneous speed ratio, a pair of noncircular gears is designed to minimize the variations. A direction control system is also designed for the GIVT using planetary gear sets. Finally, a vehicle start-up simulation and a wind turbine simulation to maintain a constant generator speed are developed based on a GIVT module in the Matlab Simulink environment.05-08-2014
20150214821Active Control System for a Variable Electromotive-Force Generator with Applications to Wind Turbines, Ships, and Hybrid Vehicles - This invention relates to an active control system for a variable electromotive-force generator (VEG) for use in wind turbines, ships, hybrid vehicles, and related applications.07-30-2015

Xuefeng Wang US

Patent application numberDescriptionPublished
20150360544VEHICLE AIR CONDITIONER DEVICE - The present invention relates to a vehicle air conditioner device, comprising: an air purifying unit for regulating air quality inside the vehicle; an inside air quality acquiring unit for acquiring air quality inside the vehicle; an outside air quality acquiring unit for acquiring air quality outside the vehicle; and a display unit for displaying information related to the acquired air quality inside the vehicle and information related to the acquired air quality outside the vehicle.12-17-2015

Xuefeng Wang, Chapel Hill, NC US

Patent application numberDescriptionPublished
20160116489LATERAL FLOW IMMUNOASSAY METHOD OF SIMULTANEOUSLY DETECTING HEMOGLOBIN S, HEMOGLOBIN C, AND HEMOGLOBIN A IN NEWBORNS, INFANTS, CHILDREN, AND ADULTS - Screening methods and devices for detecting and diagnosing hemoglobinopathies for sickle cell disease and related phenotypes. Lateral flow immunoassay devices for the detection of hemoglobinopathies. Methods for screening for hemoglobinopathies. Kits for the detection of a hemoglobinopathy in a sample. Immunogenic peptides for producing antibodies against hemoglobin variants.04-28-2016
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