Patents by Inventor Cheng Wan

Cheng Wan 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).

  • FUNCTIONAL EDIBLE OIL, PREPARATION METHOD THEREFOR AND USE THEREOF
    Publication number: 20240122200
    Abstract: Provided is a functional edible oil (FEO), a preparation method therefor and use thereof. The FEO is prepared by ternary transesterification of medium-chain triglycerides (MCTs), oils rich in linoleic acid, and oils rich in linolenic acid. The fatty acid composition and distribution of the FEO were determined and optimized via comparative analysis of indexes such as melting point, and effect of improving glucose and lipid metabolism as determined by animal tests. The FEO has a mass ratio of 2.3 to 4.0 for medium chain fatty acids (MCFAs) in MCTs to long chain fatty acids (LCFAs) in the oils rich in linoleic acid, and oils rich in linolenic acid and a mass ratio of 0.5 to 1.0 for linoleic acid to linolenic acid in the LCFAs, by mass of fatty acids. The FEO is added to food products at ?18.00%.
    Type: Application
    Filed: October 14, 2021
    Publication date: April 18, 2024
    Inventors: Zheling ZENG, Guibing ZENG, Zhen OUYANG, Bo YANG, Ping YU, Jiaheng XIA, Maomao MA, Dongman WAN, Miao LUO, Cheng ZENG, Xuefang WEN
  • BASE OIL FOR OILS AND FATS USED IN FUNCTIONAL FOOD, PREPARATION METHOD AND USE THEREOF
    Publication number: 20240081360
    Abstract: Disclosed is a base oil for functional food oils and fats, a preparation method therefor and the use thereof. The base oil for functional food oils and fats is formed through ternary transesterification on medium-chain triglycerides, high-melting-point fat and oils rich in linolenic acid. The base oil for functional food oils and fats has a wide melting range, can significantly improve the glucose and lipid metabolism disorder, balance the essential and functional fatty acids in the body, and quickly replenish energy. Animal experiments were conducted and the fatty acid composition and distribution of the base oil were optimized and determined through comparative analysis based on evaluation indicators such as the improved effect in glucose and lipid metabolism and melting point.
    Type: Application
    Filed: December 31, 2021
    Publication date: March 14, 2024
    Applicant: Nanchang University
    Inventors: Zheling Zeng, Guibing Zeng, Zhen Ouyang, Bo Yang, Ping Yu, Jiaheng Xia, Maomao Ma, Dongman Wan, Miao Luo, Cheng Zeng, Xuefang Wen
  • Harvesting ringing energy using a bootstrap circuit
    Patent number: 11711007
    Abstract: An apparatus is disclosed for harvesting ringing energy. In an example aspect, the apparatus includes a bootstrap circuit. The bootstrap circuit includes a bootstrap capacitor and a bootstrap switch. The bootstrap switch includes a first terminal configured to accept an input voltage. The bootstrap switch also includes a second terminal coupled to the bootstrap capacitor. The bootstrap switch additionally includes a body diode comprising an anode coupled to the first terminal and a cathode coupled to the second terminal. The bootstrap switch is configured to be in an open state to charge the bootstrap capacitor via the body diode. The bootstrap switch is also configured to provide a voltage at the second terminal of the bootstrap switch. The voltage is greater than an average of the input voltage.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: July 25, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Troy Lynn Stockstad, Yi-Cheng Wan, Marko Koski, Ajay Kumar Kosaraju
  • Harvesting Ringing Energy
    Publication number: 20220360159
    Abstract: An apparatus is disclosed for harvesting ringing energy. In an example aspect, the apparatus includes a bootstrap circuit. The bootstrap circuit includes a bootstrap capacitor and a bootstrap switch. The bootstrap switch includes a first terminal configured to accept an input voltage. The bootstrap switch also includes a second terminal coupled to the bootstrap capacitor. The bootstrap switch additionally includes a body diode comprising an anode coupled to the first terminal and a cathode coupled to the second terminal. The bootstrap switch is configured to be in an open state to charge the bootstrap capacitor via the body diode. The bootstrap switch is also configured to provide a voltage at the second terminal of the bootstrap switch. The voltage is greater than an average of the input voltage.
    Type: Application
    Filed: May 10, 2021
    Publication date: November 10, 2022
    Inventors: Troy Lynn Stockstad, Yi-Cheng Wan, Marko Koski, Ajay Kumar Kosaraju
  • STYRENE-ISOPRENE/BUTADIENE DIBLOCK COPOLYMER, HYDROGENATED BLOCK COPOLYMER, COMPOSITION FORMED THEREFROM, AND THE USE THEREOF
    Publication number: 20220332937
    Abstract: A styrene-isoprene/butadiene diblock copolymer contains a polystyrene block and a polyisoprene/butadiene block. Based on 100 wt % of the styrene-isoprene/butadiene diblock copolymer, the polystyrene block is 20-45 wt %, and the polyisoprene/butadiene block is 55-80 wt %. The polyisoprene/butadiene block has a polyisoprene unit and a polybutadiene unit. The weight ratio of the polyisoprene unit to the polybutadiene unit is 8:2 to 2:8.
    Type: Application
    Filed: April 5, 2022
    Publication date: October 20, 2022
    Inventors: Yi-Cheng WAN, Chen-Yu WANG
  • CONTACTOR DAMAGE AND DIAGNOSTICS
    Publication number: 20220337070
    Abstract: A method includes interpreting a contactor open event and a contactor load value for a contactor positioned on a motive power circuit for a mobile application, determining that a contactor opening event under load has occurred in response to the contactor open event and the contactor load value, and updating a contactor wear condition in response to the contactor opening event under load, wherein updating the contactor wear condition comprises accumulating a number of the contactor opening events under load.
    Type: Application
    Filed: May 5, 2022
    Publication date: October 20, 2022
    Inventors: Justin Keith Griffiths, Nilesh Surase, Ritika Shetty, Shalini Tripathy, Somdut Dey, Madhavi Gupta, Mayura Madane, Sadiya Qureshi, Toseed Khan, Amit Chavan, Kumar Prasad Telikepalli, Atul Solvande, Hao Wang, Jiong Chen, Yueyue Deng, Jason Carroll, Srinivasan Arjun Tekalur, Jacob William Green, Ashok Chakravarthi Kandru, Cheng Luo, Tianyang Jiang, Cheng Wan, Ye Zhu, John Trublowski, Robert Stephen Douglass, Rajen Modi, Nilay Mehta, Laura Natali Valencia Fritsch, Han Li, Dongxin JIn, Lewei Qian, Jun Li, Hongrae Kim, Daniel R. Ouwenga, Patrick Herranz, Miroslav Horejs, Rohit Baranwal, Zhe Zhang, Martin Wayne Mensch, Brandon William Fisher, Austin Robert Zurface, Jeff Howard Urian, James David, Bharath Kumar Suda, Asheesh Kumar Soni, Rene Guy Gallet, Michael Scott Sullivan, Karsten Gerving, Guido Völlmar, Gerd Schmitz, Christoph Bausch, Ute Molitor, Lutz Friedrichsen, Kai Schroeder, Julia Otte, Madeline Philipsohn, Norbert Roesner, Volker Lang, Johannes Meissner, Paolo D'Amico, Jalpa Shah, Meng Wang, Damrongrit Piyabongkarn, Niles Stephen Ramseyer, Dennis Dukaric, Matt Haylock, Anvaya R. Hingangave, Devendra Patil
  • METHOD AND APPARATUS FOR BUILDING EXTRACTION, AND STORAGE MEDIUM
    Publication number: 20210240983
    Abstract: A method and an apparatus for building extraction, and a storage medium are provided in the present disclosure. The method includes: obtaining remote sensing image data and user behavior associated data of a target area, in which the user behavior associated data and the remote sensing image data have a spatiotemporal correlation; generating new channel data according to the user behavior associated data and the remote sensing image data and extracting a building in the target area according to the remote sensing image data and the new channel data.
    Type: Application
    Filed: April 21, 2021
    Publication date: August 5, 2021
    Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Jidong Peng, Cheng Wan, Cheng Chen, Shilei Wen, Ke Sun, Chengliang Luo
  • System and method for log metadata automatic recovery on dual controller storage system
    Patent number: 10997031
    Abstract: A method, computer program product, and computer system for executing an automatic recovery of log metadata. A secondary storage processor may request one or more log metadata buffer values from a first buffer used by a primary storage processor. The secondary storage processor may update one or more log metadata buffer values from a second buffer used by the secondary storage processor.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: May 4, 2021
    Assignee: EMC IP Holding Company LLC
    Inventors: Cheng Wan, Socheavy D. Heng, Xinlei Xu, Yousheng Liu, Baote Zhuo
  • POWER DISTRIBUTION AND CIRCUIT PROTECTION FOR A MOBILE APPLICATION HAVING A HIGH EFFICIENCY INVERTER
    Publication number: 20200274375
    Abstract: A power electronics assembly for a mobile application includes a first power electronics component selectively coupled to a high source on a first side and coupled to a high voltage battery on a second side, a second power electronics component selectively coupled to one of a low load or a low voltage battery on a first side and coupled to the high voltage battery on a second side; and a controller, including an operating mode circuit structured to determine a discharge operating mode for the mobile application, a power electronics configuration circuit structured to provide a switch state value for the first power electronics component and the second power electronics component in response to the discharge operating mode, and wherein the first power electronics component and the second power electronics component are responsive to the switch state value to coupled selected ones of the high source, low load, and low voltage battery to the high voltage battery.
    Type: Application
    Filed: March 23, 2020
    Publication date: August 27, 2020
    Inventors: Justin Keith Griffiths, Nilesh Surase, Ritika Shetty, Shalini Tripathy, Somdut Dey, Madhavi Gupta, Mayura Madane, Sadiya Qureshi, Toseed Khan, Amit Chavan, Kumar Prasad Telikepalli, Atul Solvande, Hao Wang, Jiong Chen, Yueyue Deng, Jason Carroll, Srinivasan Arjun Tekalur, Jacob William Green, Chakravarthi Kandru, Cheng Luo, Tianyang Jiang, Cheng Wan, Ye Zhu, John Trublowski, Robert Stephen Douglass, Rajen Modi, Nilay Mehta, Laura Natali Valencia Fritsch, Han Li, Dongxin Jin, Lewei Qian, Jun Li, Hongrae Kim, Daniel R. Ouwenga, Patrick Herranz, Miroslav Horejs, Rohit Baranwal, Zhe Zhang, Martin Wayne Mensch, Brandon William Fisher, Austin Robert Zurface, Jeff Howard Urian, James David, Bharath Kumar Suda, Asheesh Kumar Soni, Rene Guy Gallet, Michael Scott Sullivan, Karsten Gerving, Guido Völlmar, Gerd Schmitz, Christoph Bausch, Ute Molitor, Lutz Friedrichsen, Kai Schroeder, Julia Otte, Madeline Philipsohn, Norbert Roesner, Volker Lang, Johannes Meissner, Paolo D'Amico, Jalpa Shah, Meng Wang, Damrongrit Piyabongkarn, Niles Stephen Ramseyer, Dennis Dukaric, Matt Haylock, Anvaya R. Hingangave, Devendra Patil
  • SYSTEM AND METHOD FOR LOG METADATA AUTOMATIC RECOVERY ON DUAL CONTROLLER STORAGE SYSTEM
    Publication number: 20200250041
    Abstract: A method, computer program product, and computer system for executing an automatic recovery of log metadata. A secondary storage processor may request one or more log metadata buffer values from a first buffer used by a primary storage processor. The secondary storage processor may update one or more log metadata buffer values from a second buffer used by the secondary storage processor.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 6, 2020
    Inventors: Cheng Wan, Socheavy D. Heng, Xinlei Xu, Yousheng Liu, Baote Zhuo
  • Performance of deduplication storage systems
    Patent number: 10719256
    Abstract: Disclosed herein are methods, systems, and processes to improve backup and restore performance in deduplication storage environments. A metadata stream that includes data segment offsets that are associated with data segments of a previous backup image and indicate data segment boundaries is received. An offset for an include operation is determined. The include operation references one or more data segments, and is part of a request to perform a backup operation. The backup operation is performed by modifying the include operation, if the offset involves one or more partial data segments.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: July 21, 2020
    Assignee: Veritas Technologies LLC
    Inventors: Lei Zhang, Peng Zhang, Tao Liu, Cheng Wan, Cheng Hai Zhu, Guang Yang
  • Polyimide polymer and polyimide film
    Patent number: 10246556
    Abstract: A polyimide polymer is provided. The polyimide polymer includes a repeating unit represented by formula 1.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: April 2, 2019
    Assignee: TAIFLEX Scientific Co., Ltd.
    Inventors: Ching-Hung Huang, Kuang-Ting Hsueh, Chiu-Feng Chen, Yi-Kai Fang, Chun-Cheng Wan
  • POLYIMIDE POLYMER AND POLYIMIDE FILM
    Publication number: 20180371170
    Abstract: A polyimide polymer is provided. The polyimide polymer includes a repeating unit represented by formula 1.
    Type: Application
    Filed: August 16, 2017
    Publication date: December 27, 2018
    Applicant: TAIFLEX Scientific Co., Ltd.
    Inventors: Ching-Hung Huang, Kuang-Ting Hsueh, Chiu-Feng Chen, Yi-Kai Fang, Chun-Cheng Wan
  • Duty cycle estimator for a switch mode power supply
    Patent number: 10148174
    Abstract: A duty cycle estimation circuit includes a latch circuit that receives a clock signal for a voltage regulator. The latch circuit outputs a duty cycle estimate. The duty cycle estimation circuit also includes a low pass filter coupled to an output of the latch circuit to receive the duty cycle estimate. The duty cycle estimation circuit further includes a comparator that receives, as input, an output of the low pass filter and a voltage regulator output. The comparator feeds back a feedback signal to the latch circuit.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: December 4, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Ajay Kumar Kosaraju, Guolei Yu, Yi-Cheng Wan, Sugato Mukherjee
  • Systems and methods for retrieving data
    Patent number: 9805047
    Abstract: A disclosed computer-implemented method for retrieving data may include (1) receiving a request to retrieve data segments from a storage system that stores data segments in a plurality of data containers, (2) obtaining, for each data segment, information that indicates which data container stores the data segment, (3) determining, based on the information that indicates which data container stores each data segment, that using an initial access order to retrieve the data segments would result in visiting one or more data containers more than one time, (4) rearranging access to one or more data segments such that retrieving the data segments results in visiting the data containers at least one fewer times than using the initial access order, and (5) retrieving the data segments from the storage system based on the rearranged access order. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: October 31, 2017
    Assignee: Veritas Technologies LLC
    Inventors: Lei Hu Zhang, Cheng Wan
  • DUTY CYCLE ESTIMATOR
    Publication number: 20170279352
    Abstract: A duty cycle estimation circuit includes a latch circuit that receives a clock signal for a voltage regulator. The latch circuit outputs a duty cycle estimate. The duty cycle estimation circuit also includes a low pass filter coupled to an output of the latch circuit to receive the duty cycle estimate. The duty cycle estimation circuit further includes a comparator that receives, as input, an output of the low pass filter and a voltage regulator output. The comparator feeds back a feedback signal to the latch circuit.
    Type: Application
    Filed: November 10, 2016
    Publication date: September 28, 2017
    Inventors: Ajay Kumar KOSARAJU, Guolei YU, Yi-Cheng WAN, Sugato MUKHERJEE
  • Control circuit and method for providing a signal for a PWM voltage regulator to convert an input voltage into an output voltage
    Patent number: 8917072
    Abstract: A control circuit and method for a PWM voltage regulator combine a high frequency feedback technique with a constant on-time or constant off-time topology to improve the transient performance of the PWM voltage regulator. The PWM voltage regulator generates a constant on-time or constant off-time depending on a current for generating a PWM signal, and dynamically adjusts the current according to the droop-voltage at its output during a transient period. Therefore, the PWM voltage regulator boosts its transient response without any threshold for load step detection.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: December 23, 2014
    Assignee: Richtek Technology Corp.
    Inventors: Yi-Cheng Wan, Jian-Rong Huang, Wen-Wei Chen
  • Multi-phase switching regulator and droop circuit therefor
    Patent number: 8917077
    Abstract: The present invention provides a multi-phase switching regulator and a droop circuit for use in the multi-phase switching regulator. The multi-phase switching regulator generates pulse width modulation (PWM) signals according to an output voltage and a droop signal, to drive a plurality of switching sets to convert an input voltage to the output voltage. The droop circuit detects the sum of the currents generated by the plurality of switching sets and provides the droop signal which is related to the sum of the currents to the multi-phase switching regulator. The droop signal can be used for over current protection (OCP) or for the droop control.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: December 23, 2014
    Assignee: Richtek Technology Corporation
    Inventors: Yu-Ta Lin, Jian-Rong Huang, Yi-Cheng Wan, Chien-Hui Wang, Yuan-Wen Hsiao
  • Voltage regulator and pulse width modulation signal generation method thereof
    Patent number: 8836307
    Abstract: In a PWM signal generation method of a voltage regulator, an output sense signal, a first ramp signal and a second ramp signal are provided. A first time point of the first ramp signal crossing with the output sense signal is used to determine a start point of an ON-time of a PWM signal, and a second time point of the second ramp signal crossing with the output sense signal is used to determine an end point of the ON-time of the PWM signal. Moreover, the first ramp signal is reset to a reference voltage at the first time point and then maintained at the reference voltage, and further ramps down starting from the end point of the ON-time. The second ramp signal ramps up starting from the start point of the ON-time, and then is reset to a preset voltage at the second time point.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: September 16, 2014
    Assignee: Richtek Technology Corp.
    Inventors: Yi-Cheng Wan, Jian-Rong Huang, Chien-Hui Wang, Cheng-Feng Chung
  • Method for improving voltage identification transient response and voltage regulator
    Patent number: 8766617
    Abstract: An exemplary method for improving voltage identification (VID) transient response is adapted to a voltage regulator and includes steps of: continuously sensing an inductor current of the voltage regulator to thereby output a current sense signal; during a steady state operation period, sampling the current sense signal to thereby obtain a sampling result for providing a droop control signal; after entering a VID transient period from the steady state operation period, holding the sampling result for providing the droop control signal; and taking the droop control signal as a consideration factor of producing a pulse width modulation signal to regulate an output voltage of the voltage regulator.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: July 1, 2014
    Assignee: Richtek Technology Corp
    Inventors: Yi-Cheng Wan, Jian-Rong Huang, Cheng-Feng Chung, Hung-Chun Peng