Patents by Inventor Michael Pang-Cheng Hsu

Michael Pang-Cheng Hsu 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: 6812757
    Abstract: A phase lock loop circuit including a voltage controlled oscillator and a phase detector having a sampling circuit and a linear voltage-to-current converter to create a control voltage for the voltage controlled oscillator. The phase lock loop circuit comprising a voltage-to-current circuit to influence a voltage on a capacitor, the voltage controlled oscillator responsive to the voltage on the capacitor, and the sampling circuit responsive to the first and second clock signals to generate two voltage values.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: November 2, 2004
    Assignee: Intel Corporation
    Inventors: Michael Pang-Cheng Hsu, Rajendran Nair, Stephen R. Mooney
  • Publication number: 20040169536
    Abstract: A variety of embodiments may include a voltage controlled oscillator to generate a differential signal on two nodes; and phase detector to compare a phase of the differential signal and a phase of a received signal, the phase detector including a sampling circuit to periodically sample voltage values on the two nodes, and a linear voltage-to-current converter responsive to the voltage values to create a control voltage for the voltage controlled oscillator.
    Type: Application
    Filed: March 10, 2004
    Publication date: September 2, 2004
    Applicant: Intel Corporation
    Inventors: Michael Pang-Cheng Hsu, Rajendran Nair, Stephen R. Mooney
  • Publication number: 20020149432
    Abstract: A voltage-to-current circuit utilizes an NMOS-input voltage-to-current (V-I) converter and a PMOS-input V-I converter, with both driving a common gate output stage. Each of the V-I converters includes a transconductance amplifier and a current mirror. The common gate output stage includes two series connected complementary pairs of transistors. One complementary pair drives the output, and the other complementary pair biases the first. The V-I circuit can be utilized as part of a phase detector, which is in turn can be utilized as part of a phase lock loop or a delay lock loop.
    Type: Application
    Filed: May 14, 2002
    Publication date: October 17, 2002
    Applicant: Intel Corporation
    Inventors: Michael Pang-Cheng Hsu, Rajendran Nair, Stephen R. Mooney
  • Patent number: 6420912
    Abstract: A voltage-to-current circuit utilizes an NMOS-input voltage-to-current (V-I) converter and a PMOS-input V-I converter, with both driving a common gate output stage. Each of the V-I converters includes a transconductance amplifier and a current mirror. The common gate output stage includes two series connected complementary pairs of transistors. One complementary pair drives the output, and the other complementary pair biases the first. The V-I circuit can be utilized as part of a phase detector, which is in turn can be utilized as part of a phase lock loop or a delay lock loop.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: July 16, 2002
    Assignee: Intel Corporation
    Inventors: Michael Pang-Cheng Hsu, Rajendran Nair, Stephen R. Mooney
  • Publication number: 20020070777
    Abstract: A voltage-to-current circuit utilizes an NMOS-input voltage-to-current (V-I) converter and a PMOS-input V-I converter, with both driving a common gate output stage. Each of the V-I converters includes a transconductance amplifier and a current mirror. The common gate output stage includes two series connected complementary pairs of transistors. One complementary pair drives the output, and the other complementary pair biases the first. The V-I circuit can be utilized as part of a phase detector, which is in turn can be utilized as part of a phase lock loop or a delay lock loop.
    Type: Application
    Filed: December 13, 2000
    Publication date: June 13, 2002
    Applicant: Intel Corporation
    Inventors: Michael Pang-Cheng Hsu, Rajendran Nair, Stephen R. Mooney