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).
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Patent number: 11632088Abstract: 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: GrantFiled: November 24, 2020Date of Patent: April 18, 2023Assignee: Elite Semiconductor Microelectronics Technology Inc.Inventors: Yang-Jing Huang, Deng-Yao Shih, Ya-Mien Hsu
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Publication number: 20220166394Abstract: 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: ApplicationFiled: November 24, 2020Publication date: May 26, 2022Inventors: Yang-Jing Huang, Deng-Yao Shih, Ya-Mien Hsu
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Patent number: 11323082Abstract: 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: GrantFiled: August 10, 2020Date of Patent: May 3, 2022Assignee: Elite Semiconductor Microelectronics Technology Inc.Inventors: Yang-Jing Huang, Shao-Ming Sun, Jhe-Jia Jhang
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Publication number: 20220045655Abstract: 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: ApplicationFiled: August 10, 2020Publication date: February 10, 2022Inventors: Yang-Jing Huang, Shao-Ming Sun, Jhe-Jia Jhang
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Patent number: 11211903Abstract: 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: GrantFiled: November 3, 2020Date of Patent: December 28, 2021Assignee: Elite Semiconductor Microelectronics Technology Inc.Inventors: Ya-Mien Hsu, Deng-Yao Shih, Yang-Jing Huang
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Patent number: 11020933Abstract: 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: GrantFiled: March 1, 2019Date of Patent: June 1, 2021Assignee: The George Washington UniversityInventors: Stephen M. Hsu, Yang Jing, Yufei Mo, Dongyun Hua, Ming Chen
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Patent number: 10958259Abstract: 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: GrantFiled: April 1, 2020Date of Patent: March 23, 2021Assignee: ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC.Inventors: Szu-Chun Tsao, Yang-Jing Huang, Ya-Mien Hsu
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Publication number: 20200389161Abstract: 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: ApplicationFiled: April 1, 2020Publication date: December 10, 2020Inventors: Szu-chun TSAO, Yang-Jing HUANG, Ya-Mien HSU
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Patent number: 10439625Abstract: 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: GrantFiled: October 9, 2018Date of Patent: October 8, 2019Assignee: NATIONAL TAIWAN UNIVERSITYInventors: Sheng-Yu Peng, Hao-Yu Li, Tzu-Yun Wang, Yang-Jing Huang, Zong-Yu Ma, Shih-An Yu
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Publication number: 20190245547Abstract: 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: ApplicationFiled: October 9, 2018Publication date: August 8, 2019Inventors: Sheng-Yu Peng, Hao-Yu Li, Tzu-Yun Wang, Yang-Jing Huang, Zong-Yu Ma, Shih-An Yu
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Publication number: 20190193372Abstract: 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: ApplicationFiled: March 1, 2019Publication date: June 27, 2019Inventors: Stephen M. HSU, Yang JING, Yufei MO, Dongyun HUA, Ming CHEN
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Patent number: 10245806Abstract: 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: GrantFiled: February 21, 2012Date of Patent: April 2, 2019Assignee: The George Washington UniversityInventors: Stephen M. Hsu, Yang Jing, Yufei Mo, Dongyun Hua, Ming Chen
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Publication number: 20140170377Abstract: 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: ApplicationFiled: February 21, 2012Publication date: June 19, 2014Applicant: The George Washington UniversityInventors: Stephen M. Hsu, Yang Jing, Yufei Mo, Dongyun Hua, Ming Chen
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Patent number: 8639119Abstract: 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: GrantFiled: March 31, 2009Date of Patent: January 28, 2014Assignee: Agency for Science, Technology and ResearchInventors: Yang Jing Wen, Zhaowen Xu, Xiaofei Cheng, Yixin Wang
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Patent number: 8606107Abstract: 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: GrantFiled: December 2, 2011Date of Patent: December 10, 2013Assignee: Futurewei Technologies, Inc.Inventors: Yu Sheng Bai, Yang Jing Wen
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Patent number: 8559821Abstract: 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: GrantFiled: December 2, 2009Date of Patent: October 15, 2013Assignee: Futurewei Technologies, Inc.Inventors: Yang Jing Wen, Jizhong Liu, Yu Sheng Bai
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Publication number: 20120141128Abstract: 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: ApplicationFiled: December 2, 2011Publication date: June 7, 2012Applicant: Futurewei Technologies, Inc.Inventors: Yu Sheng Bai, Yang Jing Wen
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Publication number: 20110222857Abstract: 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: ApplicationFiled: March 31, 2009Publication date: September 15, 2011Inventors: Yang Jing Wen, Zhaowen Xu, Xiaofei Cheng, Yixin Wang
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Publication number: 20110188859Abstract: 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: ApplicationFiled: March 31, 2009Publication date: August 4, 2011Applicant: Agency for Science, Technology and ResearchInventors: Yang Jing Wen, Zhaowen Xu, Xiaofei Cheng, Yixin Wang
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Publication number: 20110129227Abstract: 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: ApplicationFiled: December 2, 2009Publication date: June 2, 2011Applicant: Futurewei Technologies, Inc.Inventors: Yang Jing Wen, Jizhong Liu, Yu Sheng Bai