Patents by Inventor Juncai Hu

Juncai Hu 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).

  • Calibrating a system by setting difference between signals
    Patent number: 8169249
    Abstract: In a signal monitoring system, a circuit includes an input terminal and an output terminal. In addition, a processor coupled to the circuit is operable for calculating a parameter indicative of an error factor of the circuit by setting a level difference between an input signal at the input terminal and an output signal at the output terminal to a predetermined level.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: May 1, 2012
    Assignee: O2Micro International Limited
    Inventors: Guoxing Li, Quanwang Liu, Shiqiang Liu, Juncai Hu
  • CALIBRATING A SYSTEM BY SETTING DIFFERENCE BETWEEN SIGNALS
    Publication number: 20120013366
    Abstract: In a signal monitoring system, a circuit includes an input terminal and an output terminal. In addition, a processor coupled to the circuit is operable for calculating a parameter indicative of an error factor of the circuit by setting a level difference between an input signal at the input terminal and an output signal at the output terminal to a predetermined level.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Inventors: Guoxing LI, Quanwang LIU, Shiqiang LIU, Juncai HU
  • Calculating a parameter indicative of an error factor of a circuit
    Patent number: 8030973
    Abstract: In a signal monitoring system, a circuit includes an input terminal and an output terminal. In addition, a processor coupled to the circuit is operable for calculating a parameter indicative of an error factor of the circuit by setting a level difference between an input signal at the input terminal and an output signal at the output terminal to a predetermined level.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: October 4, 2011
    Assignee: O2Micro Inc.
    Inventors: Guoxing Li, Quanwang Liu, Shiqiang Liu, Juncai Hu
  • SIGNAL MONITORING SYSTEMS
    Publication number: 20110156758
    Abstract: In a signal monitoring system, a circuit includes an input terminal and an output terminal. In addition, a processor coupled to the circuit is operable for calculating a parameter indicative of an error factor of the circuit by setting a level difference between an input signal at the input terminal and an output signal at the output terminal to a predetermined level.
    Type: Application
    Filed: December 29, 2009
    Publication date: June 30, 2011
    Inventors: Guoxing LI, Quanwang LIU, Shiqiang LIU, Juncai HU