Patents by Inventor HAN YUAN
HAN YUAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20180054191Abstract: The present disclosure provides a detailed description of techniques for implementing a low power buffer with dynamic gain control. More specifically, some embodiments of the present disclosure are directed to a buffer having a gain boost configuration and a current shunt circuit to control the gain of a respective gain boosting transistor of the gain boost configuration. The current shunt circuit and resulting gain are dynamically controlled by a gain control signal such that the buffer gain can be adjusted to within an acceptable range of the target gain for the current operating and device mismatch conditions. In one or more embodiments, the gain boost configuration with dynamic gain control can be deployed in a full differential implementation. Both analog and digital dynamic calibration and control techniques can be used to provide the gain control signals to multiple current shunt circuits and multiple buffers.Type: ApplicationFiled: November 1, 2017Publication date: February 22, 2018Inventors: James Lawrence GORECKI, Han-Yuan TAN
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Publication number: 20180045989Abstract: A display apparatus including a display panel and a light source module is provided. The display panel displays an image frame according to a light beam. The light source module provides the light beam to the display panel. The light source module includes a light emitting device, a lens module, a reflection device, and a light emitting surface. The light emitting device provides the light beam. The lens module is disposed in a transmission path of the light beam and adjusts the light beam to be focused or dispersed. The reflection device receives the light beam passing from the lens module and reflects the light beam to the light emitting surface. The lens module includes a lens disposed in the transmission path of the light beam and moves relative to the light emitting device to adjust a viewing angle of the light emitting surface.Type: ApplicationFiled: April 25, 2017Publication date: February 15, 2018Applicant: Young Lighting Technology Inc.Inventors: Chun-Wei Lee, Yu-Sung Lai, Sheng Chou, Han-Yuan Liu
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Patent number: 9837998Abstract: The present disclosure provides a detailed description of techniques for implementing a low power buffer with dynamic gain control. More specifically, some embodiments of the present disclosure are directed to a buffer having a gain boost configuration and a current shunt circuit to control the gain of a respective gain boosting transistor of the gain boost configuration. The current shunt circuit and resulting gain are dynamically controlled by a gain control signal such that the buffer gain can be adjusted to within an acceptable range of the target gain for the current operating and device mismatch conditions. In one or more embodiments, the gain boost configuration with dynamic gain control can be deployed in a full differential implementation. Both analog and digital dynamic calibration and control techniques can be used to provide the gain control signals to multiple current shunt circuits and multiple buffers.Type: GrantFiled: December 9, 2016Date of Patent: December 5, 2017Assignee: INPHI CORPORATIONInventors: James Lawrence Gorecki, Han-Yuan Tan
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Publication number: 20170207864Abstract: The present disclosure provides a detailed description of techniques for implementing a low power buffer with gain boost. More specifically, some embodiments of the present disclosure are directed to a buffer with a stacked transistor configuration, wherein the first transistor receives an input signal and the second transistor receives a complement of the input signal. The first transistor is configured to generate a non-inverting response to the input signal, and the second transistor is configured to generate an inverting response to the complement of the input signal, and to generate a negative gds effect, enabling the buffer to exhibit low power and unity gain across a wide bandwidth. In other embodiments, the stacked transistor configuration can be deployed in a full differential implementation. In other embodiments, the buffer can include techniques for improving linearity, DC level shifts, capacitive input loading, and output slewing, settling, and drive capabilities.Type: ApplicationFiled: March 31, 2017Publication date: July 20, 2017Inventors: James Lawrence GORECKI, Han-Yuan TAN
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Patent number: 9647643Abstract: The present disclosure provides a detailed description of techniques for implementing a low power buffer with gain boost. More specifically, some embodiments of the present disclosure are directed to a buffer with a stacked transistor configuration, wherein the first transistor receives an input signal and the second transistor receives a complement of the input signal. The first transistor is configured to generate a non-inverting response to the input signal, and the second transistor is configured to generate an inverting response to the complement of the input signal, and to generate a negative gds effect, enabling the buffer to exhibit low power and unity gain across a wide bandwidth. In other embodiments, the stacked transistor configuration can be deployed in a full differential implementation. In other embodiments, the buffer can include techniques for improving linearity, DC level shifts, capacitive input loading, and output slewing, settling, and drive capabilities.Type: GrantFiled: August 8, 2016Date of Patent: May 9, 2017Assignee: INPHI CORPORATIONInventors: James Lawrence Gorecki, Han-Yuan Tan
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Publication number: 20170126329Abstract: The present disclosure provides a detailed description of techniques for implementing a wideband low dropout voltage regulator with power supply rejection boost. More specifically, some embodiments of the present disclosure are directed to a voltage regulator comprising a voltage regulator core powered by a supply voltage and providing a regulated voltage output, and a power supply feed forward injection module delivering an injection signal to the voltage regulator core to effect a power supply rejection of the supply voltage variation from the regulated voltage. In one or more embodiments, the injection signal is determined from the supply voltage variation and a gain factor that is based on various design attributes of the output stage of the voltage regulator core. In one or more embodiments, the power supply feed forward injection module comprises a supply voltage sense circuit, a low pass filter, and one or more selectable transconductance amplifiers.Type: ApplicationFiled: December 9, 2016Publication date: May 4, 2017Inventors: James Lawrence GORECKI, Han-Yuan TAN
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Publication number: 20170126217Abstract: The present disclosure provides a detailed description of techniques for implementing a low power buffer with dynamic gain control. More specifically, some embodiments of the present disclosure are directed to a buffer having a gain boost configuration and a current shunt circuit to control the gain of a respective gain boosting transistor of the gain boost configuration. The current shunt circuit and resulting gain are dynamically controlled by a gain control signal such that the buffer gain can be adjusted to within an acceptable range of the target gain for the current operating and device mismatch conditions. In one or more embodiments, the gain boost configuration with dynamic gain control can be deployed in a full differential implementation. Both analog and digital dynamic calibration and control techniques can be used to provide the gain control signals to multiple current shunt circuits and multiple buffers.Type: ApplicationFiled: December 9, 2016Publication date: May 4, 2017Inventors: James Lawrence GORECKI, Han-Yuan TAN
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Patent number: 9553569Abstract: The present disclosure provides a detailed description of techniques for implementing a low power buffer with dynamic gain control. More specifically, some embodiments of the present disclosure are directed to a buffer having a gain boost configuration and a current shunt circuit to control the gain of a respective gain boosting transistor of the gain boost configuration. The current shunt circuit and resulting gain are dynamically controlled by a gain control signal such that the buffer gain can be adjusted to within an acceptable range of the target gain for the current operating and device mismatch conditions. In one or more embodiments, the gain boost configuration with dynamic gain control can be deployed in a full differential implementation. Both analog and digital dynamic calibration and control techniques can be used to provide the gain control signals to multiple current shunt circuits and multiple buffers.Type: GrantFiled: February 4, 2015Date of Patent: January 24, 2017Assignee: INPHI CORPORATIONInventors: James Lawrence Gorecki, Han-Yuan Tan
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Patent number: 9552006Abstract: The present disclosure provides a detailed description of techniques for implementing a wideband low dropout voltage regulator with power supply rejection boost. More specifically, some embodiments of the present disclosure are directed to a voltage regulator comprising a voltage regulator core powered by a supply voltage and providing a regulated voltage output, and a power supply feed forward injection module delivering an injection signal to the voltage regulator core to effect a power supply rejection of the supply voltage variation from the regulated voltage. In one or more embodiments, the injection signal is determined from the supply voltage variation and a gain factor that is based on various design attributes of the output stage of the voltage regulator core. In one or more embodiments, the power supply feed forward injection module comprises a supply voltage sense circuit, a low pass filter, and one or more selectable transconductance amplifiers.Type: GrantFiled: March 9, 2015Date of Patent: January 24, 2017Assignee: INPHI CORPORATIONInventors: James Lawrence Gorecki, Han-Yuan Tan
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Publication number: 20160347869Abstract: The present invention provides a facile method for separation (fractionation) of HA in a sample over a broad M range, including low M HA, by ion exchange (IEX) chromatography. The present invention also provides an assay method for quantifying in a sample the presence of low M HA in total HA isolated from a biological source. The method involves HA fractionation according to M by use of IEX separation, followed by HA-specific assay of HA size range fractions.Type: ApplicationFiled: February 6, 2015Publication date: December 1, 2016Inventors: Mary COWMAN, Han YUAN, Ripal AMIN
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Publication number: 20160352372Abstract: The present disclosure provides a detailed description of techniques for implementing a low power buffer with gain boost. More specifically, some embodiments of the present disclosure are directed to a buffer with a stacked transistor configuration, wherein the first transistor receives an input signal and the second transistor receives a complement of the input signal. The first transistor is configured to generate a non-inverting response to the input signal, and the second transistor is configured to generate an inverting response to the complement of the input signal, and to generate a negative gds effect, enabling the buffer to exhibit low power and unity gain across a wide bandwidth. In other embodiments, the stacked transistor configuration can be deployed in a full differential implementation. In other embodiments, the buffer can include techniques for improving linearity, DC level shifts, capacitive input loading, and output slewing, settling, and drive capabilities.Type: ApplicationFiled: August 8, 2016Publication date: December 1, 2016Inventors: James Lawrence GORECKI, Han-Yuan TAN
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Patent number: 9432000Abstract: The present disclosure provides a detailed description of techniques for implementing a low power buffer with gain boost. More specifically, some embodiments of the present disclosure are directed to a buffer with a stacked transistor configuration, wherein the first transistor receives an input signal and the second transistor receives a complement of the input signal. The first transistor is configured to generate a non-inverting response to the input signal, and the second transistor is configured to generate an inverting response to the complement of the input signal, and to generate a negative gds effect, enabling the buffer to exhibit low power and unity gain across a wide bandwidth. In other embodiments, the stacked transistor configuration can be deployed in a full differential implementation. In other embodiments, the buffer can include techniques for improving linearity, DC level shifts, capacitive input loading, and output slewing, settling, and drive capabilities.Type: GrantFiled: February 4, 2015Date of Patent: August 30, 2016Assignee: INPHI CORPORATIONInventors: James Lawrence Gorecki, Han-Yuan Tan
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Publication number: 20140342654Abstract: A temperature control system includes a temperature switch, an air outlet valve, an air inlet valve, and a control device. The temperature switch is utilized to detect and determine the external temperature and internal temperature of a container. The control device receives a first and a second signal and determines whether the air outlet valve and the air inlet valve are opened or closed. When the control device receives the first signal, the control device opens the air outlet valve and the air inlet valve, when the control device receives the second signal, the control device closes the air outlet valve and the air inlet valve.Type: ApplicationFiled: May 14, 2014Publication date: November 20, 2014Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: WEN-JEN WU, HAN-YUAN CHEN
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Publication number: 20140158300Abstract: This invention provides a protective sheet for glass etching, having excellent etching solution penetration resistance, non-contaminating property and peeling efficiency. The protective sheet comprises a substrate and a PSA layer provided on one face of the substrate, such that, when the protective sheet is adhered to a non-etching area when etching glass, it protects the non-etching area from an etching solution. The PSA layer is constituted with a PSA having a gel fraction of 60% or higher. The PSA is an acrylic PSA comprising an acrylic polymer as a primary component. The acrylic polymer is synthesized by polymerizing starting monomers comprising, as a primary monomer, a monomer represented by a formula: CH2?CR1COOR2 (R1 is a hydrogen atom or a methyl group, and R2 is an alkyl group). The primary monomer comprises as a primary component a monomer with R2 being an alkyl group having 6 or more carbons.Type: ApplicationFiled: June 8, 2012Publication date: June 12, 2014Applicants: NITTO DENKO (TAIWAN) CORPORATION, NITTO DENKO CORPORATIONInventors: Maiko Hayata, Michirou Kawanishi, Yu-Han Yuan, Jen-Chun Fang
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Publication number: 20140053307Abstract: A protecting mask includes a main body, a mask unit, and multiple connecting members. The main body includes a connecting wall having an inner surface and an outer surface and formed with multiple first through holes. The mask unit is disposed at the outer surface of the connecting wall and is formed with multiple second through holes corresponding to the first through holes, respectively. Each connecting member includes an engaging portion removably engaging the mask unit, and a resilient protruding portion extending from the engaging portion through a corresponding pair of the first and second through holes, and engaging the inner surface of the connecting wall.Type: ApplicationFiled: August 27, 2012Publication date: February 27, 2014Applicant: POLISON CORPORATIONInventor: Han-Yuan Cheng
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Patent number: 8453836Abstract: A mobile device protective case (10) includes a frame (20) and a slidable shutter (30) mounted on the frame (20) to function as a slidable component. After a mobile device (50) has been inserted into the frame (20), the slidable shutter (30) hides a touch panel (51) of the mobile device (50) to prevent the touch panel (51) from being scratched or scraped. To start using the mobile device (50), a user moves the slidable shutter (30), such that the touch panel (51) of the mobile device (50) is exposed and can be directly operated by the user.Type: GrantFiled: November 14, 2011Date of Patent: June 4, 2013Assignee: Topkase International Co., Ltd.Inventors: Han-Yuan Wang, Chih-Ming Chang, David John Ardener, Mao-Shen Wang
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Publication number: 20130118933Abstract: A mobile device protective case (10) includes a frame (20) and a slidable shutter (30) mounted on the frame (20) to function as a slidable component. After a mobile device (50) has been inserted into the frame (20), the slidable shutter (30) hides a touch panel (51) of the mobile device (50) to prevent the touch panel (51) from being scratched or scraped. To start using the mobile device (50), a user moves the slidable shutter (30), such that the touch panel (51) of the mobile device (50) is exposed and can be directly operated by the user.Type: ApplicationFiled: November 14, 2011Publication date: May 16, 2013Applicant: TOPKASE INTERNATIONAL CO., LTD.Inventors: Han-Yuan WANG, Chih-Ming Chang, David John Ardener, Mao-Shen Wang
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Publication number: 20080223565Abstract: A heat transfer device includes a receptacle having a number of partitions disposed for forming a number of fluid flowing passages within the receptacle, an inlet and a path formed in one side and communicating with the inlet and the fluid flowing passages of the receptacle, and a distributor having a tubular member engaged into the inlet and the path of the receptacle and having a number of orifices formed along the tubular member and aligned with the fluid flowing passages of the receptacle for guiding the fluid to evenly flow through the fluid flowing passages of the receptacle respectively. The distributor may include a manifold attached to the tubular member for bypassing the fluid.Type: ApplicationFiled: March 13, 2007Publication date: September 18, 2008Inventors: Chi Yuan Lai, Han Yuan Chou
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Publication number: 20070055596Abstract: A financial close system of record integrating: managing a financial period close process, attesting to adequate internal controls applicable to the period, displaying qualitative status of confidence and quantitative measure of progress in a financial control and the electronic archiving of the three as an executable and auditable embodiment of a financial period close binder.Type: ApplicationFiled: April 3, 2006Publication date: March 8, 2007Applicant: MOVARIS, INCInventors: STEVE YANKOVICH, NATHAN HOOVER, RAJESH BHATIA, ARTHUR ARDIZZONE, BRANDON DUNCAN, HAN YUAN
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Publication number: 20060192222Abstract: A light emitting device is provided. The light emitting device includes a substrate, at least one light emitting chip and a first heat dissipation element. The substrate has a top surface and a bottom surface, and contacts are disposed on the top surface. The light emitting chip disposed on the top surface of the substrate is in contact with the contacts. The light emitting chip includes a light emitting layer, a positive electrode and a negative electrode. The light emitting layer is excited to emit a light by a current applied between the positive electrode and the negative electrode. The first heat dissipation element is disposed at the bottom surface of the substrate for transferring the heat generated by the light emitting chip out of the light emitting device, thus the operation temperature of the light emitting chip can be lowered.Type: ApplicationFiled: December 1, 2005Publication date: August 31, 2006Inventors: Jyh-Chen Chen, Han-Yuan Chou, Gwo-Jiun Sheu, Farn-Shiun Hwu, Chine-Hung Cheng