Patents by Inventor Chen-Yu Wu

Chen-Yu Wu 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: 8730693
    Abstract: A control circuit of a charge pump circuit is disclosed, which includes a ring oscillator and a load status detection unit. The ring oscillator herein is for producing a clock signal and adjusting the frequency of the clock signal according to a first control signal, and stopping generating the clock signal according to an adjustment signal. The load status detection unit is for producing the first control signal and determining a time point to enable the first control signal according to the voltage drop variation of an output voltage of the charge pump circuit and the adjustment signal, wherein the pulse width of the adjustment signal gets narrower with a smaller drop in amplitude of the output voltage value.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: May 20, 2014
    Assignee: Winbond Electronics Corp.
    Inventor: Chen-Yu Wu
  • Patent number: 8471539
    Abstract: A low drop out (LDO) voltage regulator having an error amplifier, a power transistor, a first voltage division unit, a compensation control unit and a compensation bias current source is provided. The error amplifier generates a control voltage according to a first reference voltage and a feedback voltage. The power transistor generates an output voltage at a drain of the power transistor according to the control voltage. The first voltage division unit divides the output voltage to generate the feedback voltage. The compensation control unit generates a compensation control signal to the compensation bias current source according to the control voltage, the output voltage and a compensation bias, so as to make the compensation bias current source generate a compensation bias current, in which the compensation bias is inversely proportional to a supply voltage and ambient temperature.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: June 25, 2013
    Assignee: Winbond Electronics Corp.
    Inventor: Chen-Yu Wu
  • Publication number: 20120161734
    Abstract: A low drop out (LDO) voltage regulator having an error amplifier, a power transistor, a first voltage division unit, a compensation control unit and a compensation bias current source is provided. The error amplifier generates a control voltage according to a first reference voltage and a feedback voltage. The power transistor generates an output voltage at a drain of the power transistor according to the control voltage. The first voltage division unit divides the output voltage to generate the feedback voltage. The compensation control unit generates a compensation control signal to the compensation bias current source according to the control voltage, the output voltage and a compensation bias, so as to make the compensation bias current source generate a compensation bias current, in which the compensation bias is inversely proportional to a supply voltage and ambient temperature.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 28, 2012
    Applicant: WINBOND ELECTRONICS CORP.
    Inventor: Chen-Yu Wu
  • Publication number: 20110279102
    Abstract: A control circuit of a charge pump circuit is disclosed, which includes a ring oscillator and a load status detection unit. The ring oscillator herein is for producing a clock signal and adjusting the frequency of the clock signal according to a first control signal, and stopping generating the clock signal according to an adjustment signal. The load status detection unit is for producing the first control signal and determining a time point to enable the first control signal according to the voltage drop variation of an output voltage of the charge pump circuit and the adjustment signal, wherein the pulse width of the adjustment signal gets narrower with a smaller drop amplitude of the output voltage value.
    Type: Application
    Filed: May 17, 2010
    Publication date: November 17, 2011
    Applicant: WINBOND ELECTRONICS CORP.
    Inventor: Chen-Yu Wu
  • Patent number: 7681350
    Abstract: An exemplary flat panel display (1) includes a main body (10) and a transparent holding structure (12) fixed to the main body. The holding structure is configured to hold one or more thin insertions by itself at a side thereof and or by cooperation with the main body wherein one or more thin insertions are held between the holding structure and the main body at a side of the holding structure.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: March 23, 2010
    Assignee: Innolux Display Corp.
    Inventors: Meng-Tse Tsai, Chen-Yu Wu, Hsiao-Yuan Ho, Chi-Wen Chiang, Che-Min Huang, Yung-Hsiang Chen
  • Patent number: 7564679
    Abstract: An exemplary flat panel display (1) includes a display body (10) and a stand (12) supporting the display body. The stand includes a base (13), and a slider (14) slidably engaged to the base. The slider is configured for moving the display body upwardly or downwardly relative to the base.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: July 21, 2009
    Assignee: Innolux Display Corp.
    Inventors: Yung-Hsiang Chen, Che-Min Huang, Yun-Ling Liang, Ming-Chih Huang, Chen-Yu Wu, Hsiao-Ching Hung
  • Publication number: 20080123269
    Abstract: An exemplary flat panel display (1) includes a main body (10) and a transparent holding structure (12) fixed to the main body. The holding structure is configured to hold one or more thin insertions by itself at a side thereof and or by cooperation with the main body wherein one or more thin insertions are held between the holding structure and the main body at a side of the holding structure.
    Type: Application
    Filed: December 19, 2006
    Publication date: May 29, 2008
    Inventors: Meng-Tse Tsai, Chen-Yu Wu, Hsiao-Yuan Ho, Chi-Wen Chiang, Che-Min Huang, Yung-Hsiang Chen
  • Publication number: 20070146979
    Abstract: An exemplary flat panel display (1) includes a display body (10) and a stand (12) supporting the display body. The stand includes a base (13), and a slider (14) slidably engaged to the base. The slider is configured for moving the display body upwardly or downwardly relative to the base.
    Type: Application
    Filed: December 22, 2006
    Publication date: June 28, 2007
    Inventors: Yung-Hsiang Chen, Che-Min Huang, Yun-Ling Liang, Ming-Chih Huang, Chen-Yu Wu, Hsiao-Ching Hung
  • Patent number: D529497
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: October 3, 2006
    Assignee: Innolux Display Corp.
    Inventors: Yung-Hsiang Chen, Che-Min Huang, Meng-Tse Tsai, Chen-Yu Wu
  • Patent number: D529912
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: October 10, 2006
    Assignee: Innolux Display Corp.
    Inventors: Yung-Hsiang Chen, Che-Min Huang, Meng-Tse Tsai, Chen-Yu Wu
  • Patent number: D550221
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: September 4, 2007
    Assignee: Innolux Display Corp.
    Inventors: Yung-Hsiang Chen, Che-Min Huang, Hsiao-Yuan Ho, Yun-Ling Liang, Chen-Yu Wu