Patents by Inventor Peiqing Zhu

Peiqing Zhu 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).

  • Circuits and methods for capacitor charging
    Patent number: 9306402
    Abstract: Circuits for charging capacitors in connection with oscillators are described. The oscillator may include a mechanical resonator. The circuits may include a charging element and a switched capacitor subcircuit to control operation of the charging element, and may be considered a charging circuit in some scenarios. The charging circuits may provide rapid charging of a capacitor to provide a reference voltage to the oscillator.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: April 5, 2016
    Assignee: Analog Devices, Inc.
    Inventors: Dean A. Badillo, Mohammad Asmani, Klaus Juergen Schoepf, Reimund Rebel, Peiqing Zhu