Patents by Inventor Hong X. Tang

Hong X. Tang 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).

  • Detection of resonator motion using piezoresistive signal downmixing
    Patent number: 7552645
    Abstract: A system containing a micro-mechanical or nano-mechanical device and a method of operating the same is provided. The device includes a resonator and a piezoresistive element connected to the resonator. The method includes AC biasing the piezoresistive element at a first frequency, driving the resonator at a second frequency different from the first frequency, and detecting a mechanical response of the resonator at one or both of a difference frequency and a sum frequency of the first and second frequencies.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: June 30, 2009
    Assignee: California Institute of Technology
    Inventors: Igor Bargatin, Edward B. Myers, Mo Li, Jessica Arlett, Benjamin Gudlewski, Michael L. Roukes, Darron K. Young, Hong X. Tang
  • Detection of Resonator Motion Using Piezoresistive Signal Downmixing
    Publication number: 20080216583
    Abstract: A system containing a micro-mechanical or nano-mechanical device and a method of operating the same is provided. The device includes a resonator and a piezoresistive element connected to the resonator. The method includes AC biasing the piezoresistive element at a first frequency, driving the resonator at a second frequency different from the first frequency, and detecting a mechanical response of the resonator at one or both of a difference frequency and a sum frequency of the first and second frequencies.
    Type: Application
    Filed: February 24, 2005
    Publication date: September 11, 2008
    Inventors: Igor Bargatin, Edward B. Myers, Mo Li, Jessica Arlett, Benjamin Gudlewski, Michael L. Roukes, Darron K. Young, Hong X. Tang