Patents by Inventor Yang Jing

Yang Jing 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).

  • Patent number: 11632088
    Abstract: A voltage converter comprising: a bootstrap circuit, comprising an output capacitor, an error amplifier, a charging control circuit and a charging circuit. The charging control circuit comprises: a detection circuit, configured to detect an output voltage of the output capacitor to generate a detection signal; and a power limiting circuit, configured to clamp an output voltage of the error amplifier to a specific range based on the detection signal. The charging circuit is configured to generate a charging signal according the output voltage of the error amplifier to the bootstrap circuit, to charge the output capacitor.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: April 18, 2023
    Assignee: Elite Semiconductor Microelectronics Technology Inc.
    Inventors: Yang-Jing Huang, Deng-Yao Shih, Ya-Mien Hsu
  • Publication number: 20220166394
    Abstract: A voltage converter comprising: a bootstrap circuit, comprising an output capacitor, an error amplifier, a charging control circuit and a charging circuit. The charging control circuit comprises: a detection circuit, configured to detect an output voltage of the output capacitor to generate a detection signal; and a power limiting circuit, configured to clamp an output voltage of the error amplifier to a specific range based on the detection signal . The charging circuit is configured to generate a charging signal according the output voltage of the error amplifier to the bootstrap circuit, to charge the output capacitor.
    Type: Application
    Filed: November 24, 2020
    Publication date: May 26, 2022
    Inventors: Yang-Jing Huang, Deng-Yao Shih, Ya-Mien Hsu
  • Patent number: 11323082
    Abstract: A class-D amplifier configured to adjust at least one input signal to at least one output signal. The class-D amplifier comprises: a loop filter, configured to receive the input signal; a PWM circuit, configured to generate at least one PWM signal; a summing circuit, coupled between an output of the loop filter and an input of the PWM circuit; an output circuit operating at a supply voltage, configured to generate the output signal responding to the PWM signal; and a supply voltage filter, configured to monitor the supply voltage to generate a filtered signal to the summing circuit. The summing circuit is configured to sum the output of the loop filter and the filtered signal to adjust a common-mode level of the input of the PWM circuit.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: May 3, 2022
    Assignee: Elite Semiconductor Microelectronics Technology Inc.
    Inventors: Yang-Jing Huang, Shao-Ming Sun, Jhe-Jia Jhang
  • Publication number: 20220045655
    Abstract: A class-D amplifier configured to adjust at least one input signal to at least one output signal. The class-D amplifier comprises: a loop filter, configured to receive the input signal; a PWM circuit, configured to generate at least one PWM signal; a summing circuit, coupled between an output of the loop filter and an input of the PWM circuit; an output circuit operating at a supply voltage, configured to generate the output signal responding to the PWM signal; and a supply voltage filter, configured to monitor the supply voltage to generate a filtered signal to the summing circuit. The summing circuit is configured to sum the output of the loop filter and the filtered signal to adjust a common-mode level of the input of the PWM circuit.
    Type: Application
    Filed: August 10, 2020
    Publication date: February 10, 2022
    Inventors: Yang-Jing Huang, Shao-Ming Sun, Jhe-Jia Jhang
  • Patent number: 11211903
    Abstract: An over charge protection method applied to a voltage converter which can operate in a quaternary modulation mode (Q mode) or a ternary modulation mode (T mode). The over charge protection method comprises: (a) determining whether the voltage converter operates in the Q mode or the T mode; and (b) setting a current threshold of the voltage converter to a first over current threshold if the voltage converter operates in the T mode; and (c) setting the current threshold to a second over current threshold if the voltage converter operates in the Q mode, wherein the first current threshold is smaller than the second over current threshold.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: December 28, 2021
    Assignee: Elite Semiconductor Microelectronics Technology Inc.
    Inventors: Ya-Mien Hsu, Deng-Yao Shih, Yang-Jing Huang
  • Patent number: 11020933
    Abstract: The present invention relates to techniques for lowering friction between moving surfaces of, for example, an internal combustion engine. Friction reduction is achieved by adding texture modifications to surfaces that come in contact with each other. Texture modifications that reduce friction in accordance with the present invention include dimples of varying geometries and depths ion the surfaces of components. The present invention also relates to the fabrication technique for applying the texture to the surfaces. In another embodiment, the patterned soft mask is applied onto a large surface (flat or curved including cylindrical rollers surfaces) to be followed by electrochemical etching to imprint the textures onto the component And, in another embodiment, a diamond-like-carbon (DLC) film may be applied to the turbine component to also reduce friction.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: June 1, 2021
    Assignee: The George Washington University
    Inventors: Stephen M. Hsu, Yang Jing, Yufei Mo, Dongyun Hua, Ming Chen
  • Patent number: 10958259
    Abstract: A pulse width modulation output stage incorporates a half bridge output stage, a gate control circuit, a detection circuit, and a control logic. The half bridge output stage has a first transistor and a second transistor connected in series between a power supply node and a ground node. The gate control circuit outputs a pulse width modulation signal to drive the first transistor and the second transistor. The detection circuit detects whether or not a glitch occurs in one of the gate voltages of the first and second transistor so as to generate a control code. The logic circuit varies the delay time of the pulse width modulation signal based on the control code.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: March 23, 2021
    Assignee: ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC.
    Inventors: Szu-Chun Tsao, Yang-Jing Huang, Ya-Mien Hsu
  • Publication number: 20200389161
    Abstract: A pulse width modulation output stage incorporates a half bridge output stage, a gate control circuit, a detection circuit, and a control logic. The half bridge output stage has a first transistor and a second transistor connected in series between a power supply node and a ground node. The gate control circuit outputs a pulse width modulation signal to drive the first transistor and the second transistor. The detection circuit detects whether or not a glitch occurs in one of the gate voltages of the first and second transistor so as to generate a control code. The logic circuit varies the delay time of the pulse width modulation signal based on the control code.
    Type: Application
    Filed: April 1, 2020
    Publication date: December 10, 2020
    Inventors: Szu-chun TSAO, Yang-Jing HUANG, Ya-Mien HSU
  • Patent number: 10439625
    Abstract: A dynamic current correlating circuit is disclosed. The current correlating circuit includes a reset circuit, a first current generating circuit and a second current generating circuit. The reset circuit executes a discharging procedure during a first time interval and executes a charging procedure during a second time interval. The first current generating circuit is electrically connected to the reset circuit. The first current generating circuit generates a first sub-current and a second sub-current during a third time interval according to a first input voltage and a second input voltage and generates a first current after the third time interval. The second current generating circuit is electrically connected to the reset circuit. The second current generating circuit generates a second current according to the first input voltage and the second input voltage after the third time interval.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: October 8, 2019
    Assignee: NATIONAL TAIWAN UNIVERSITY
    Inventors: Sheng-Yu Peng, Hao-Yu Li, Tzu-Yun Wang, Yang-Jing Huang, Zong-Yu Ma, Shih-An Yu
  • Publication number: 20190245547
    Abstract: A dynamic current correlating circuit is disclosed. The current correlating circuit includes a reset circuit, a first current generating circuit and a second current generating circuit. The reset circuit executes a discharging procedure during a first time interval and executes a charging procedure during a second time interval. The first current generating circuit is electrically connected to the reset circuit. The first current generating circuit generates a first sub-current and a second sub-current during a third time interval according to a first input voltage and a second input voltage and generates a first current after the third time interval. The second current generating circuit is electrically connected to the reset circuit. The second current generating circuit generates a second current according to the first input voltage and the second input voltage after the third time interval.
    Type: Application
    Filed: October 9, 2018
    Publication date: August 8, 2019
    Inventors: Sheng-Yu Peng, Hao-Yu Li, Tzu-Yun Wang, Yang-Jing Huang, Zong-Yu Ma, Shih-An Yu
  • Publication number: 20190193372
    Abstract: The present invention relates to techniques for lowering friction between moving surfaces of, for example, an internal combustion engine. Friction reduction is achieved by adding texture modifications to surfaces that come in contact with each other. Texture modifications that reduce friction in accordance with the present invention include dimples of varying geometries and depths ion the surfaces of components. The present invention also relates to the lubrication technique for applying the texture to the surfaces. In another embodiment, the patterned soft mask is applied onto a large surface (flat or curved including cylindrical rollers surfaces) to be followed by electrochemical etching to imprint the textures onto the component And, in another embodiment, a diamond-like-carbon (DLC) film may be applied to the turbine component to also reduce friction.
    Type: Application
    Filed: March 1, 2019
    Publication date: June 27, 2019
    Inventors: Stephen M. HSU, Yang JING, Yufei MO, Dongyun HUA, Ming CHEN
  • Patent number: 10245806
    Abstract: The present invention relates to techniques for lowering friction between moving surfaces of, for example, an internal combustion engine. Friction reduction is achieved by adding texture modifications to surfaces that come in contact with each other. Texture modifications that reduce friction in accordance with the present invention include dimples of varying geometries and depths ion the surfaces of components. The present invention also relates to the fabrication technique for applying the textures to the surfaces. In another embodiment, the patterned soft mask is applied onto a large surface (flat or curved including cylindrical rollers surfaces) to be followed by electrochemical etching to imprint the textures onto the component. And, in another embodiment, a diamond-like-carbon (DLC) film may be applied to the turbine component to also reduce friction.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: April 2, 2019
    Assignee: The George Washington University
    Inventors: Stephen M. Hsu, Yang Jing, Yufei Mo, Dongyun Hua, Ming Chen
  • Publication number: 20140170377
    Abstract: The present invention relates to techniques for lowering friction between moving surfaces of, for example, an internal combustion engine. Friction reduction is achieved by adding texture modifications to surfaces that come in contact with each other. Texture modifications that reduce friction in accordance with the present invention include dimples of varying geometries and depths ion the surfaces of components. The present invention also relates to the fabrication technique for applying the textures to the surfaces. In another embodiment, the patterned soft mask is applied onto a large surface (flat or curved including cylindrical rollers surfaces) to be followed by electrochemical etching to imprint the textures onto the component. And, in another embodiment, a diamond-like-carbon (DLC) film may be applied to the turbine component to also reduce friction.
    Type: Application
    Filed: February 21, 2012
    Publication date: June 19, 2014
    Applicant: The George Washington University
    Inventors: Stephen M. Hsu, Yang Jing, Yufei Mo, Dongyun Hua, Ming Chen
  • Patent number: 8639119
    Abstract: A remote node for a wavelength-division-multiplexed passive optical network (WDM PON). The remote node comprises means for receiving uplink optical signals from one or more optical network units of the WDM PON; a broadband reflector for reflecting a self-seeding portion of the respective uplink optical signals to the respective uplink light sources; and wherein the reflector comprises a gain medium and is configured for receiving a pump optical signal from a central office of the WDM PON for amplifying the self seeding portion of the respective uplink optical signal.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: January 28, 2014
    Assignee: Agency for Science, Technology and Research
    Inventors: Yang Jing Wen, Zhaowen Xu, Xiaofei Cheng, Yixin Wang
  • Patent number: 8606107
    Abstract: A dense wavelength-division-multiplexing (DWDM) system, comprising a plurality of laser transmitters, a wavelength division multiplexer (WDM) optically coupled to the laser transmitters and to an output optical transmission media, a coupler optically coupled to the output optical transmission media, an interferometric filter optically coupled to the coupler but not directly to the output optical transmission media, and a light reflector optically coupled to the interferometric filter and not directly to the output optical transmission media.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: December 10, 2013
    Assignee: Futurewei Technologies, Inc.
    Inventors: Yu Sheng Bai, Yang Jing Wen
  • Patent number: 8559821
    Abstract: An apparatus comprising a laser transmitter having a first side and a second side, a filter coupled to the first side, a detector coupled to the second side, and a temperature controller coupled to the laser transmitter and the detector. Also disclosed is an apparatus comprising at least one processor configured to implement a method comprising receiving a photocurrent of a backward light from a laser, determining a wavelength shift offset between a wavelength of the output light and a filter transmission peak, and adjusting a temperature of the laser to substantially reduce the wavelength shift and align the wavelength of the output light with the filter transmission peak.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: October 15, 2013
    Assignee: Futurewei Technologies, Inc.
    Inventors: Yang Jing Wen, Jizhong Liu, Yu Sheng Bai
  • Publication number: 20120141128
    Abstract: A dense wavelength-division-multiplexing (DWDM) system, comprising a plurality of laser transmitters, a wavelength division multiplexer (WDM) optically coupled to the laser transmitters and to an output optical transmission media, a coupler optically coupled to the output optical transmission media, an interferometric filter optically coupled to the coupler but not directly to the output optical transmission media, and a light reflector optically coupled to the interferometric filter and not directly to the output optical transmission media.
    Type: Application
    Filed: December 2, 2011
    Publication date: June 7, 2012
    Applicant: Futurewei Technologies, Inc.
    Inventors: Yu Sheng Bai, Yang Jing Wen
  • Publication number: 20110222857
    Abstract: A remote node for a wavelength-division-multiplexed passive optical network (WDM PON). The remote node comprises means for receiving uplink optical signals from one or more optical network units of the WDM PON; a broadband reflector for reflecting a self-seeding portion of the respective uplink optical signals to the respective uplink light sources; and wherein the reflector comprises a gain medium and is configured for receiving a pump optical signal from a central office of the WDM PON for amplifying the self seeding portion of the respective uplink optical signal.
    Type: Application
    Filed: March 31, 2009
    Publication date: September 15, 2011
    Inventors: Yang Jing Wen, Zhaowen Xu, Xiaofei Cheng, Yixin Wang
  • Publication number: 20110188859
    Abstract: A wavelength-division-multiplexed passive optical network (WDM PON) comprising: a remote node (RN) comprising a light source for generating a seeding signal; and one or more optical network units (ONUs), each ONU comprising a laser source configured for receiving a portion of the seeding light signal from the RN.
    Type: Application
    Filed: March 31, 2009
    Publication date: August 4, 2011
    Applicant: Agency for Science, Technology and Research
    Inventors: Yang Jing Wen, Zhaowen Xu, Xiaofei Cheng, Yixin Wang
  • Publication number: 20110129227
    Abstract: An apparatus comprising a laser transmitter having a first side and a second side, a filter coupled to the first side, a detector coupled to the second side, and a temperature controller coupled to the laser transmitter and the detector. Also disclosed is an apparatus comprising at least one processor configured to implement a method comprising receiving a photocurrent of a backward light from a laser, determining a wavelength shift offset between a wavelength of the output light and a filter transmission peak, and adjusting a temperature of the laser to substantially reduce the wavelength shift and align the wavelength of the output light with the filter transmission peak.
    Type: Application
    Filed: December 2, 2009
    Publication date: June 2, 2011
    Applicant: Futurewei Technologies, Inc.
    Inventors: Yang Jing Wen, Jizhong Liu, Yu Sheng Bai