Patents by Inventor Hui-Yen Hsieh

Hui-Yen Hsieh 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).

  • Bi-direction driver IC and method for bi-directionally driving an object
    Patent number: 8228011
    Abstract: The present invention discloses a bi-direction driver IC and a method for bi-directionally driving an object. The method comprises: providing a first and a second integrated circuit (IC) chips, coupled with an object to be driven, wherein each of the first and second IC chips is capable of single-directionally driving the object; providing a reverse current path in each of the first and second IC chips; driving the object in a first direction by the first IC chip, wherein current flows through the reverse current path in the second IC chip; and driving the object in a second direction by the second IC chip, wherein current flows through the reverse current path in the first IC chip.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: July 24, 2012
    Assignee: Chip Goal Electronics Corporation
    Inventor: Hui-Yen Hsieh
  • Bi-Direction Driver IC and Method for Bi-Directionally Driving an Object
    Publication number: 20110199029
    Abstract: The present invention discloses a bi-direction driver IC and a method for bi-directionally driving an object. The method comprises: providing a first and a second integrated circuit (IC) chips, coupled with an object to be driven, wherein each of the first and second IC chips is capable of single-directionally driving the object; providing a reverse current path in each of the first and second IC chips; driving the object in a first direction by the first IC chip, wherein current flows through the reverse current path in the second IC chip; and driving the object in a second direction by the second IC chip, wherein current flows through the reverse current path in the first IC chip.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 18, 2011
    Inventor: Hui-Yen Hsieh
  • Servo control circuit
    Patent number: 7746019
    Abstract: The present invention discloses a servo control circuit comprising: a first node for receiving a control voltage; a second node for receiving a feedback voltage; an operational amplifier controlling a current on a path according to the voltages at the first and second nodes, the path including an internal voltage node thereon; an analog to digital converter (ADC) for converting the voltage at the internal voltage node to a digital signal; and a control logic circuit for generating a servo control signal according to the digital signal.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: June 29, 2010
    Assignee: Chip Goal Electronics Corporation
    Inventor: Hui-Yen Hsieh
  • Servo Control Circuit
    Publication number: 20090195207
    Abstract: The present invention discloses a servo control circuit comprising: a first node for receiving a control voltage; a second node for receiving a feedback voltage; an operational amplifier controlling a current on a path according to the voltages at the first and second nodes, the path including an internal voltage node thereon; an analog to digital converter (ADC) for converting the voltage at the internal voltage node to a digital signal; and a control logic circuit for generating a servo control signal according to the digital signal.
    Type: Application
    Filed: February 6, 2008
    Publication date: August 6, 2009
    Inventor: Hui-Yen Hsieh
  • Process for Preparation of Anastrozole
    Publication number: 20080177081
    Abstract: The present invention provides an improved process for preparing Anastrozole.
    Type: Application
    Filed: January 19, 2007
    Publication date: July 24, 2008
    Applicant: FORMOSA LABORATORIES, INC.
    Inventors: Hui-Yen Hsieh, Ching-Peng Wei