Hwang, TX
Byung-Sun Hwang, Austin, TX US
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20110067956 | SYSTEM AND APPARATUS FOR PERSONAL HIGH ALTITUDE RAPPEL ESCAPE SAFETY DEVICE - A personal, lightweight, high altitude rappel escape safety device is worn by an individual as a backpack and provides a safe means of lowering the individual from an elevated structure. The device comprises a structural body containing a mechanical device for slowly releasing a high strength cable. One end of the cable is secured to the structure prior to the user descending from the structure. The cable is released from a spool located inside the body and makes a circuitous path though a frictional structure. The structure contains baffles through which the cable extends. The friction caused by the pattern of release of the cable generates sufficient drag to safely lower a person from any altitude in a structure to the ground. The rate of descent may be adjusted via a braking mechanism. | 03-24-2011 |
Chien-Seng Hwang, Frisco, TX US
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20120064209 | Protein Ingredient Selection and Manipulation for the Manufacture of Snack Foods - Methods for the incorporation of dairy proteins into extruded snack products to provide a good source of protein are presented. In a first aspect, direct expanded, puffed products are obtained by selecting at least one filtered protein derived from milk and controlling unwanted reactions with one or more expansion controlling agents. Through the addition of expansion controlling agents such as a calcium carbonate, the thermally-treated, dairy protein-containing dough surprisingly results in a crunchier puffed snack food product. In a second aspect, the present invention provides for the manipulation of whey protein by ensuring the protein is denatured prior to combining with additional dry ingredients to form a sheetable whey-based dough suitable for cold extrusion-type processes. | 03-15-2012 |
20130273219 | Micropellets of Fine Particle Nutrients and Methods of Incorporating Same into Snack Food Products - Nutritious granular materials of fine particle sizes agglomerated within versatile micropellets are useful for inserting significant amounts of nutritious properties into snack foods. Expandable micropellet-containing formulations provide for introduction of fine particle ingredients such as proteins, minerals and other components or desirable nutrients into food processing lines not typically amenable to the fine particle sizes. Micropellet-containing formulations may consist entirely of micropellets, or may contain an expandable starch such as, for example, corn meal, sheeted doughs, and expanded collet products onto which the micropellets may be basted. | 10-17-2013 |
Chih-An Hwang, Humble, TX US
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20120022692 | PREDICTION AND CONTROL SOLUTION FOR POLYMERIZATION REACTOR OPERATION - Techniques and systems for the prevention of reactor fouls in polymerization reactors are described. Described embodiments include techniques and systems for performing analyses on reactor data collected over time for the detection of incipient reactor fouling. Techniques are provided for monitoring the state of the reactor as well as for monitoring individual system parameters, including rates of change, for predicting the onset of a reactor foul. In particular, the techniques may be implemented such that predictive proactive control systems may be integrated into polymerization reactor systems to prevent reactor fouling. | 01-26-2012 |
20140264991 | SYSTEM AND METHOD FOR POLYMER EXTRUSION - Techniques are provided for polymer extrusion. A polyolefin extrusion system may include an extrusion gear pump configured to receive a narrow molecular weight distribution polyolefin from a polyolefin manufacturing system. The polyolefin extrusion system may also include a motor of the extrusion gear pump configured to drive the extrusion gear pump, a pressure sensor configured to generate a pressure signal indicative of a suction pressure into the extrusion gear pump, an automation controller configured to generate an output signal based on the pressure signal, and a variable speed drive configured to control operation of the motor. | 09-18-2014 |
Chih-Chau Hwang, Spring, TX US
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20150111018 | LOW COST CARBON MATERIALS FOR THE CAPTURE OF CO2 AND H2S FROM VARIOUS ENVIRONMENTS - In some embodiments, the present disclosure pertains to methods of capturing a gas from an environment by associating the environment with a porous carbon material that includes, without limitation, protein-derived porous carbon materials, carbohydrate-derived porous carbon materials, cotton-derived porous carbon materials, fat-derived porous carbon materials, waste-derived porous carbon materials, asphalt-derived porous carbon materials, coal-derived porous carbon materials, coke-derived porous carbon materials, asphaltene-derived porous carbon materials, oil product-derived porous carbon materials, bitumen-derived porous carbon materials, tar-derived porous carbon materials, pitch-derived porous carbon materials, anthracite-derived porous carbon materials, melamine-derived porous carbon materials, and combinations thereof. In some embodiments, the associating results in sorption of gas components (e.g., CO | 04-23-2015 |
Chih-Chau Hwang, Houston, TX US
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20150024931 | NUCLEOPHILIC POROUS CARBON MATERIALS FOR REVERSIBLE CO2 CAPTURE - In some embodiments, the present disclosure pertains to methods of capturing CO | 01-22-2015 |
20150050741 | TRANSPORTERS OF OIL SENSORS FOR DOWNHOLE HYDROCARBON DETECTION - Various embodiments of the present disclosure pertain to nanocomposites for detecting hydrocarbons in a geological structure. In some embodiments, the nanocomposites include: a core particle; a polymer associated with the core particle; a sulfur-based moiety associated with the polymer; and a releasable probe molecule associated with the core particle, where the releasable probe molecule is releasable from the core particle upon exposure to hydrocarbons. Additional embodiments of the present disclosure pertain to methods of detecting hydrocarbons in a geological structure by utilizing the nanocomposites of the present disclosure. | 02-19-2015 |
20150056116 | COMPOSITES FOR CARBON DIOXIDE CAPTURE - Composite materials and methods of preparing C0 | 02-26-2015 |
20150068747 | METHOD TO CONSOLIDATE SOLID MATERIALS DURING SUBTERRANEAN TREATMENT OPERATIONS - Compositions include (1) aggregating compositions capable of forming deformable partial or complete coatings on formation surfaces, formation particle surfaces, downhole fluid solid surfaces, and/or proppant surfaces, where the coatings increase aggregation and/or agglomeration propensities of the particles and surfaces to form particles clusters or pillars having deformable coatings, and (2) aggregation stabilizing and/or strengthening compositions capable of altering properties of the coated clusters or pillars to form consolidated, stabilized, and/or strengthened clusters or pillars. Methods for stabilizing aggregated particle clusters or pillars include (1) treating the particles with an aggregating composition to form aggregated clusters or pillars and (2) treating the aggregated particle clusters or pillars with a stabilizing or strengthening composition to form consolidated, stabilized, and/or strengthened clusters or pillars. | 03-12-2015 |
20150101808 | METHODS AND SYSTEM FOR CREATING HIGH CONDUCTIVITY FRACTURES - Methods for forming proppant pillars in a formation during formation fracturing include include periods of pumping a first fracturing fluid including a proppant and an aggregating composition including a reaction product of a phosphate compound or a plurality of phosphate and an amine, periods of pumping a second fracturing fluid excluding a proppant and an aggregating composition including a reaction product of a phosphate compound and periods of pumping a third fracturing fluid including an aggregating composition including a reaction product of a phosphate compound, where the pumping of the three fracturing fluids may be in any order and may involve continuous pumping, pulse pumping, or non-continuous pumping. | 04-16-2015 |
20150111024 | NUCLEOPHILIC POROUS CARBON MATERIALS FOR CO2 AND H2S CAPTURE - In some embodiments, the present disclosure pertains to methods of capturing a gas from an environment by associating the environment (e.g., a pressurized environment) with a porous carbon material that comprises a plurality of pores and a plurality of nucleophilic moieties. In some embodiments, the associating results in sorption of gas components (e.g., CO | 04-23-2015 |
20150153472 | Detecting Hydrocarbons in a Geological Structure - Magnetic nanoparticles are utilized for magnetically detecting hydrocarbons in a geological structure. The magnetic nanoparticles generally include a core particle and a temperature responsive polymer associated with the core particle. The temperature responsive polymer may include polyacrylamides, polyethylene glycols, or combinations thereof. The temperature responsive polymer facilitates an agglomeration of the nanoparticles in a fluid at an organic/aqueous interface of the fluid, an organic phase of the fluid, or combinations thereof. The agglomeration may occur at a specific temperature or temperature range. | 06-04-2015 |
Daniel Hwang, Plano, TX US
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20130310203 | DEVICE AND METHOD FOR IMPROVED TENNIS RACKET DAMPING AND WEIGHT ADJUSTMENT - The present application relates to devices and methods for adjusting the weight of a racket using variably weighted racket damping devices. | 11-21-2013 |
Garry Chih-Chau Hwang, Houston, TX US
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20140076158 | COMPOSITE MATERIALS FOR REVERSIBLE CO2 CAPTURE - Composite materials for carbon dioxide (C02) capture that include: (1) a mesoporous carbon source; and (2) an in situ polymerized polymer that is associated with the mesoporous carbon source, where the in situ polymerized polymer is selected from the group consisting of thiol-based polymers, amine-based polymers, and combinations thereof. Methods of making the composite materials for C02 capture include: (1) associating a mesoporous carbon source with monomers, where the monomers are selected from the group consisting of thiol-based monomers, amine-based monomers, and combinations thereof; and (2) polymerizing the monomers in situ to form said composite materials. Further embodiments of the present invention pertain to methods of capturing C02 from an environment by associating the environment with one or more of the aforementioned composite materials. | 03-20-2014 |
Guorjuh Thomas Hwang, Sugar Land, TX US
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20130179758 | CIRCUITS, INTEGRATED CIRCUITS, AND METHODS FOR INTERLEAVED PARITY COMPUTATION - Circuits, integrated circuits, and methods are disclosed for interleaved parity computation. In one such example circuit, an interleaved parity computation circuit includes a first parity circuit that receives a first set of bits and a second parity circuit that receives a second set of bits. The first set of bits includes a first parity bit, and is received in the first parity circuit during a first clock cycle. The first parity circuit generates a first signal indicative of the parity of the first set of bits. The second set of bits includes a second parity bit, and is received in the second parity circuit during a second clock cycle. The second parity circuit generates a second signal indicative of the parity of the second set of bits. A combining circuit combines the first signal and the second signal into an alert signal. | 07-11-2013 |
20140331110 | CIRCUITS, INTEGRATED CIRCUITS, AND METHODS FOR INTERLEAVED PARITY COMPUTATION - Circuits, integrated circuits, and methods are disclosed for interleaved parity computation. In one such example circuit, an interleaved parity computation circuit includes a first parity circuit that receives a first set of bits and a second parity circuit that receives a second set of bits. The first set of bits includes a first parity bit, and is received in the first parity circuit during a first clock cycle. The first parity circuit generates a first signal indicative of the parity of the first set of bits. The second set of bits includes a second parity bit, and is received in the second parity circuit during a second clock cycle. The second parity circuit generates a second signal indicative of the parity of the second set of bits. A combining circuit combines the first signal and the second signal into an alert signal. | 11-06-2014 |
Gyeong S. Hwang, Austin, TX US
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20110220165 | THERMOELECTRIC DEVICE INCLUDING THERMOELECTRIC BODY INCLUDING VACANCY CLUSTER - A thermoelectric device includes: a first region; a second region; and a thermoelectric body disposed between the first region and the second region, where the thermoelectric body includes a vacancy. | 09-15-2011 |
Horng Jay Hwang, Houston, TX US
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20090260823 | MINES AND TUNNELS FOR USE IN TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS - A system for treating a subsurface hydrocarbon containing formation includes one or more substantially horizontal or inclined tunnels extending from at least one shaft. One or more heater sources are located in one or more heater wellbores coupled to at least one of the substantially horizontal or inclined tunnels. | 10-22-2009 |
Horng Jye (jay) Hwang, Houston, TX US
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20090260824 | HYDROCARBON PRODUCTION FROM MINES AND TUNNELS USED IN TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS - A system for treating a subsurface hydrocarbon containing formation includes one or more substantially horizontal or inclined tunnels extending from one or more shafts. A production system is located in at least one of the tunnels. The production system is configured to produce fluids from the formation that collect in the tunnel. | 10-22-2009 |
20090272526 | ELECTRICAL CURRENT FLOW BETWEEN TUNNELS FOR USE IN HEATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS - A system for treating a subsurface hydrocarbon containing formation includes one or more shafts. A first substantially horizontal or inclined tunnel extends from one or more of the shafts. A second substantially horizontal or inclined tunnel extends from one or more of the shafts. Two or more heat source wellbores extend from the first tunnel to the second tunnel. The heat source wellbores are configured to allow electrical current to flow between the heat source wellbores. | 11-05-2009 |
20090272533 | HEATED FLUID FLOW IN MINES AND TUNNELS USED IN HEATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS - A system for treating a subsurface hydrocarbon containing formation includes one or more shafts. A first substantially horizontal or inclined tunnel extends from one or more of the shafts. A second substantially horizontal or inclined tunnel extends from one or more of the shafts. Two or more heat source wellbores extend from the first tunnel to the second tunnel. The heat source wellbores are configured to allow heated fluid to flow through the wellbores from the first tunnel to the second tunnel. | 11-05-2009 |
20090272535 | USING TUNNELS FOR TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS - A system for treating a subsurface hydrocarbon containing formation includes one or more tunnels having an average diameter of at least 1 m. At least one tunnel is connected to the surface. Two or more wellbores extend from at least one of the tunnels into at least a portion of the subsurface hydrocarbon containing formation. At least two of the wellbores contain elongated heat sources configured to heat at least a portion of the subsurface hydrocarbon containing formation such that at least some hydrocarbons are mobilized. | 11-05-2009 |
20090272536 | HEATER CONNECTIONS IN MINES AND TUNNELS FOR USE IN TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS - A system for treating a subsurface hydrocarbon containing formation includes one or more shafts. At least two substantially horizontal or inclined tunnels extend from one or more of the shafts. A plurality of heat sources are located in at least one heat source wellbore extending between at least two of the substantially horizontal tunnels. Electrical connections for the heat sources are located in at least one of the substantially horizontal tunnels. | 11-05-2009 |
20100071903 | MINES AND TUNNELS FOR USE IN TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS - A system for treating a subsurface hydrocarbon containing formation includes one or more substantially horizontal or inclined tunnels extending from at least one shaft. One or more heater sources are located in one or more heater wellbores coupled to at least one of the substantially horizontal or inclined tunnels. | 03-25-2010 |
20100071904 | HYDROCARBON PRODUCTION FROM MINES AND TUNNELS USED IN TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS - A system for treating a subsurface hydrocarbon containing formation includes one or more substantially horizontal or inclined tunnels extending from one or more shafts. A production system is located in at least one of the tunnels. The production system is configured to produce fluids from the formation that collect in the tunnel. | 03-25-2010 |
James Y. Hwang, Dallas, TX US
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20120227001 | Methods and Systems for Managing an e-Reader Interface - Exemplary methods and systems for managing an e-reader interface are disclosed herein. An exemplary method includes an e-reader interface management system directing an e-reader device to display a plurality of graphical objects representative of a plurality of segments of an e-publication and arranged in a plurality of overlapping rows, detecting that a user has accessed a particular segment within the plurality of segments and represented by a particular graphical object within the plurality of graphical objects, and dynamically altering at least one display attribute associated with the particular graphical object to indicate that the particular segment has been accessed by the user. Corresponding methods and systems are also disclosed. | 09-06-2012 |
20120227002 | Methods and Systems for Managing an e-Reader Interface - Exemplary methods and systems for managing an e-reader interface are disclosed herein. An exemplary method includes an e-reader interface management system directing an e-reader device to display a plurality of graphical objects representative of a plurality of segments of an e-publication, detecting a user interaction with a graphical object within the plurality of graphical objects and representative of a segment within the plurality of segments, and directing the e-reader device to remove at least one other graphical object within the graphical objects from the display of the graphical objects, wherein the at least one other graphical object is representative of at least one other segment within the plurality of segments that is unrelated to the segment. Corresponding methods and systems are also disclosed. | 09-06-2012 |
Jim Hwang, Houston, TX US
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20120205111 | REINFORCED FRAC TUBING HEAD - A reinforced wellhead member for use during fracing operations. The wellhead member is preloaded at a flange section by creating compressive stresses via a ring that interacts with a tightening nut on a bolt. The bolt is rigidly attached to an adapter which may also be modified to create stresses on the flange of the wellhead member. The induced stresses counter the tensile stresses experienced by the flange during fracing operations, allowing a standard wellhead member to be utilized. | 08-16-2012 |
20140000907 | APPARATUS AND METHOD FOR BACKSEATING A GATE VALVE | 01-02-2014 |
20140131954 | SHRINKAGE COMPENSATED SEAL ASSEMBLY AND RELATED METHODS - Shrinkage compensated seal assemblies and methods of compensating for shrinkage of a seal due to temperature variations, are provided. According to an exemplary shrinkage compensated seal assembly, the assembly includes a seal, a first compression member for engaging the upper surface of the seal, a second compression member for engaging the lower surface of the seal, and a plurality of pin members each having an elongate body and a head portion. The elongate body of each separate one of the plurality of pin members slidably extends through a different one of a plurality of sets of apertures in the first compression member, the seal, and the second compression member to provide for maintaining a substantially constant pressure on the seal at given pressure under varying temperature conditions that result in variations in the volume size of the seal. | 05-15-2014 |
Julie Hwang, Richardson, TX US
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20090043926 | BIDIRECTIONAL DATA REPEATER SWITCH - A bidirectional repeater and data multiplexer for serial data has A-side | 02-12-2009 |
Ken-Pin Hwang, Houston, TX US
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20080221428 | Chemical Shift Markers for Improved Wireless Fiducial Marker Tracking - A new and improved method for tracking and/or spatial localization of an invasive device in Magnetic Resonance Imaging (MRI) is provided. The invention includes providing an invasive device including a marker having a chemically shifted signal source with a resonant frequency different from the chemical species of the subject to be imaged, applying a pulse sequence, detecting the resulting RF magnetic resonance signals, and determining the 3D coordinates of the marker. The invention also includes generating scan planes and reconstructing an image from the detected signals to generate an image having the marker contrasted from the subject. The invasive device includes a marker having a chemically shifted signal source which has a resonant frequency different from the chemical species of the subject to be imaged for use in tracking the device during imaging. | 09-11-2008 |
20080310696 | METHOD AND APPARATUS FOR CORRECTING MOTION IN MULTI-SHOT DIFFUSION-WEIGHTED MAGNETIC RESONANCE IMAGING - A method for performing motion correction in an autocalibrated, multi-shot diffusion-weighting MR imaging data acquisition includes performing motion correction on k-space data in an autocalibration region for each shot individually and then combining the motion-corrected k-space data from each shot to form a motion-corrected reference autocalibration region. Uncorrected source k-space data points are “trained to” the motion-corrected k-space data from the motion-corrected reference autocalibration region to determine coefficients that are used to synthesize motion-corrected k-space data in the outer, undersampled regions of k-space. Similarly, acquired k-space lines in the outer, undersampled regions of k-space may also be replaced by motion-corrected synthesized k-space data. The motion-corrected k-space data from the motion-corrected reference autocalibration region may be combined with the synthesized motion-corrected k-space data for the outer, undersampled regions of k-space to reconstruct motion-corrected images corresponding to each coil element. The motion corrected images corresponding to each coil element may be combined into a resultant image. | 12-18-2008 |
Ken-Pin Hwang, Sugar Land, TX US
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20090001984 | METHOD AND APPARATUS FOR K-SPACE AND HYBRID-SPACE BASED IMAGE RECONSTRUCTION FOR PARALLEL IMAGING AND ARTIFACT CORRECTION - A method for performing correction in an autocalibrated, multi-shot MR imaging data acquisition includes performing correction on k-space data in an autocalibration region for each shot individually and then combining the corrected k-space data from each shot to form a corrected reference autocalibration region. Uncorrected source k-space data points are “trained to” the corrected k-space data from the corrected reference autocalibration region to determine coefficients that are used to synthesize corrected k-space data in the outer, undersampled regions of k-space. Similarly, acquired k-space lines in the outer, undersampled regions of k-space may also be replaced by corrected synthesized k-space data. The corrected k-space data from the corrected reference autocalibration region may be combined with the synthesized corrected k-space data for the outer, undersampled regions of k-space to reconstruct corrected images corresponding to each coil element. The corrected images corresponding to each coil element may be combined into a resultant image. | 01-01-2009 |
20110025325 | APPARATUS AND METHOD FOR ACQUISITION AND RECONSTRUCTION OF NON-CPMG PROPELLER SEQUENCES - An apparatus and method of MR imaging is disclosed. The apparatus and method comprises segmenting acquisition of an echo train into separate odd and even acquisition blades in k-space, wherein the odd and even acquisition blades extend orthogonally through a common reference point in a central region of k-space. A segment of MR data is acquired using a quadratic phase modulation scheme, wherein a first set of MR echo signals occurring after odd-numbered RF refocusing pulses are stored in the odd acquisition blade, and a second set of MR echo signals occurring after even-numbered RF refocusing pulses are stored in the even acquisition blade. This acquisition and segmentation is repeated until a sufficient number of blades are acquired to fill k-space. Finally, an image is reconstructed from the acquisition blades. | 02-03-2011 |
Ming-Jang Hwang, Dallas, TX US
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20100227450 | NOVEL HIGH-K DIELECTRIC MATERIALS AND PROCESSES FOR MANUFACTURING THEM - High dielectric films of mixed transition metal oxides of titanium and tungsten, or titanium and tantalum, are formed by sequential chemical vapor deposition (CVD) of the respective nitrides and annealing in the presence of oxygen to densify and oxidize the nitrides. The resulting film is useful as a capacitative cell and resists oxygen diffusion to the underlying material, has high capacitance and low current leakage. | 09-09-2010 |
Sok Young Hwang, Dallas, TX US
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20100110101 | USER INTERFACE COLOR SCHEME CUSTOMIZATION SYSTEMS AND METHODS - In certain exemplary embodiments, data representative of a color scheme including a plurality of colors is maintained, a parameter for each of the colors is shifted by a same offset to generate another color scheme, and the other color scheme is associated with a graphical user interface. In certain embodiments, the shifting preserves at least one of a hue relationship and a contrast relationship between the colors in the color scheme. In certain embodiments, at least one user interface tool configured to facilitate a user selection of one of the colors included in the color scheme and a change to be applied to the color, and the same offset is determined based on the user selection. | 05-06-2010 |
20100274865 | TRAVEL TIME DEPENDENT NOTIFICATION SYSTEM - A computer-readable medium may include computer-executable instructions. The computer-executable instructions may include instructions for identifying an event that is scheduled to be attended by a user, determining a current location of a device associated with the user, determining an estimated amount of time that the user needs to travel from the current location to the event, and sending an alert to notify the user, the alert indicating the amount of time that is available to the user to travel to the event. | 10-28-2010 |
20110161878 | INTER-APPLICATION NAVIGATION APPARATUSES, SYSTEMS, AND METHODS - Inter-application navigation apparatuses, systems, and methods are disclosed. An exemplary method includes a computing system accessing a plurality of applications, generating an application access history specifying an order by which the applications are accessed by the computing system, and displaying an inter-application navigation user interface including a plurality of user-selectable graphical objects representing the plurality of applications accessed by the mobile phone device, the user-selectable graphical objects arranged in a slideable list within the inter-application navigation user interface based on the application access history. The plurality of applications represented by the plurality of user-selectable graphical objects in the inter-application navigation user interface includes an application being executed by the computing system and an application not being executed by the computing system when the inter-application navigation user interface is displayed. Corresponding apparatuses, systems, and methods are also disclosed. | 06-30-2011 |
Virginia L. Hwang, Richardson, TX US
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20140356990 | METHODS OF MAKING INKJET PRINT HEADS USING A SACRIFICIAL SUBSTRATE LAYER - A method of making inkjet print heads may include forming a first wafer including a sacrificial substrate layer, and a first dielectric layer thereon having first openings therein defining inkjet orifices. The method may also include forming a second wafer having inkjet chambers defined thereon, and joining the first and second wafers together so that each inkjet orifice is aligned with a respective inkjet chamber. The method may further include removing the sacrificial substrate layer thereby defining the inkjet print heads. | 12-04-2014 |
Wen-Yen Hwang, Sugar Land, TX US
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20120288231 | LASER PACKAGE INCLUDING TILTED LASER AND METHOD OF USING SAME - In a laser package, a tilted laser causes laser light to be coupled into an optical fiber at an angle relative to a fiber axis of the optical fiber. The tilted laser emits laser light at an angle relative to a lens axis of a lens such that the lens directs and focuses the laser light at the angle relative to the fiber axis. Tilting the laser allows the laser light to be coupled into the optical fiber substantially parallel to or aligned with the core of the fiber while causing back reflection to be directed away from the laser, thereby improving coupling efficiency and minimizing feedback. The tilted laser may be coupled to an angle polished fiber, for example, in a laser package such as a TO can type laser package, a butterfly type laser package, or a TOSA type laser package. | 11-15-2012 |
20130223844 | EXTERNAL CAVITY LASER ARRAY SYSTEM AND WDM OPTICAL SYSTEM INCLUDING SAME - An external cavity laser array system may be used in a WDM optical system, such as a WDM-PON, for transmitting optical signals at multiple channel wavelengths. The system generally includes a plurality of laser emitters (e.g., gain chips) optically coupled to and separated from respective exit reflectors (e.g., tunable narrow-band reflectors), thereby forming an array of external cavity lasers with extended lasing cavities. The exit reflectors may be distributed Bragg reflectors (DBRs) located in the waveguides in an arrayed waveguide grating (AWG). The laser emitters emit a range of wavelengths including multiple channel wavelengths and the DBRs reflect a subset of channel wavelengths including at least a channel wavelength associated with the laser emitter such that lasing occurs at the subset of channel wavelengths. The AWG then filters the emitted laser light at the associated channel wavelengths. | 08-29-2013 |
20140093244 | FILTERED LASER ARRAY ASSEMBLY WITH EXTERNAL OPTICAL MODULATION AND WDM OPTICAL SYSTEM INCLUDING SAME - A filtered laser array assembly generally includes an array of laser emitters coupled between external modulators and an arrayed waveguide grating (AWG). Each of the laser emitters emits light across a plurality of wavelengths including, for example, channel wavelengths in an optical communication system. The AWG filters the emitted light from each of the laser emitters at different channel wavelengths associated with each of the laser emitters. Lasing cavities are formed between each of the laser emitters and a back reflector coupled to an output of the AWG such that laser output from the laser emitters is provided at the respective channel wavelengths of the reflected, filtered light. The external modulators enable high speed modulation of the laser output. The modulated laser output may then be optically multiplexed to produce an aggregate optical signal including multiple channel wavelengths. | 04-03-2014 |
Wonjun Hwang, College Station, TX US
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20150216688 | Intravascular Medical Device Release System - The present invention provides a braided coil catheter to delivery of a vascular implant through a catheter including a braided coil adapted to at least partially retain a vascular implant comprising a braided coil distal tip, a braided coil proximal end connected by a braided coil body having a lumen with a lumen diameter; a friction plug comprising a proximal friction plug end, a distal friction plug end connected by a friction plug body with a friction plug diameter greater than the lumen diameter to frictionally fit into the lumen of the braided coil distal tip; a vascular implant having an implant mating end, an implant non-mating end connected by an implant body wherein the implant mating end is connected to the distal friction plug end; and a pusher catheter inserted into the lumen and to contact the proximal friction plug end and force the friction plug from the lumen. | 08-06-2015 |
Wonmuk Hwang, College Station, TX US
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20140057285 | COMPOSITIONS AND METHODS TARGETING FORCE GENERATION IN KINESIN - In some aspects, the invention provides chimeric kinesin proteins. In other aspects the invention provides nucleic acids encoding chimeric kinesin proteins. Compositions and kits are provided that comprise chimeric kinesin proteins and nucleic acids encoding the same. Antibodies and antigen binding fragments that selectively bind kinesin proteins are also provided. | 02-27-2014 |