Patents by Inventor Prasad Ammisetti

Prasad Ammisetti 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).

  • Non-invasive, low pin count test circuits and methods
    Patent number: 6937046
    Abstract: A method of testing an integrated circuit including the steps of observing a selected parameter at a selected test mode to detect an error. The current to the integrated circuit is stepped from a reference level by selected amount.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: August 30, 2005
    Assignee: Cirrus Logic, Inc.
    Inventors: Murari Kejariwal, Prasad Ammisetti, Axel Thomsen, John Laurence Melanson
  • High order multi-path operational amplifier with reduced input referred offset
    Patent number: 6466091
    Abstract: Disclosed in this application is the placement of an additional integrator between the first stage integrator output and the input to the attenuator/low pass filter. This approach reduces the input referred offset by a factor equal to the gain of the additional integrator, and the offset of the additional integrator itself will be divided by the gain of the first-stage integrator.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: October 15, 2002
    Assignee: Cirrus Logic, Inc.
    Inventors: Murari Kejariwal, Prasad Ammisetti, Axel Thomsen
  • Noise reduction technique in chopper stabilized amplifier
    Patent number: 6307430
    Abstract: Disclosed is a chopper-stabilized amplifier with current steering used as output switching and to be operated in a low power supply voltage environment.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: October 23, 2001
    Assignee: Cirrus Logic, Inc.
    Inventors: Axel Thomsen, Murari Kejariwal, Prasad Ammisetti