Patents by Inventor Kamatchi Saravanan Alagarsamy

Kamatchi Saravanan Alagarsamy 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).

  • Spread-spectrum MEMS self-test system and method
    Patent number: 9238580
    Abstract: A MEMS sensor includes a micro-electromechanical structure, a detection circuit, and a self-test circuit to test the health of the MEMS sensor during runtime operations. The self-test circuit is configured to inject into the micro-electromechanical structure a plurality of injected test signals that are broad-band frequency-varying frequency signals, which are based on spread spectrum based modulation. The injected test signals may a magnitude that is below an observable threshold of the sensor signal as well as a test-signal bandwidth that overlaps with a substantial portion of the sensor bandwidth, including the stimulus of interest.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: January 19, 2016
    Assignee: Analog Devices Global
    Inventors: Kamatchi Saravanan Alagarsamy, William A. Clark, Jishnu Choyi, James M. Lee, Vikas Choudhary
  • Spread-Spectrum MEMS Self-Test System and Method
    Publication number: 20140250969
    Abstract: A MEMS sensor includes a micro-electromechanical structure, a detection circuit, and a self-test circuit to test the health of the MEMS sensor during runtime operations. The self-test circuit is configured to inject into the micro-electromechanical structure a plurality of injected test signals that are broad-band frequency-varying frequency signals, which are based on spread spectrum based modulation. The injected test signals may a magnitude that is below an observable threshold of the sensor signal as well as a test-signal bandwidth that overlaps with a substantial portion of the sensor bandwidth, including the stimulus of interest.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Applicant: ANALOG DEVICES TECHNOLOGY
    Inventors: Kamatchi Saravanan Alagarsamy, William A. Clark, Jishnu Choyi, James M. Lee, Vikas Choudhary