Patents by Inventor V. Rao Sattiraju

V. Rao Sattiraju 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).

  • Approximating signal power and noise power in a system
    Patent number: 6975693
    Abstract: An electronic system with power approximation for circuit savings. Power approximation is provided by means for generating an absolute value of a real part of a signal, means for generating an absolute value of an imaginary part of the signal, means for generating a sum of the absolute values, and means for performing an averaging function on the sum such that a result of the averaging function provides an approximate power which indicates an actual power of the signal. The approximate power enables a determination of actual signal-to-noise ratio in the electronic system and a determination of a variety of other signal-to-noise determinations without the use of multipliers.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: December 13, 2005
    Assignee: Agilent Technologies, Inc.
    Inventors: William J. Hillery, V. Rao Sattiraju
  • Approximating signal power and noise power in a system
    Patent number: 6081822
    Abstract: An electronic system with power approximation for circuit savings. Power approximation is provided by means for generating an absolute value of a real part of a signal, means for generating an absolute value of an imaginary part of the signal, means for generating a sum of the absolute values, and means for performing an averaging function on the sum such that a result of the averaging function provides an approximate power which indicates an actual power of the signal. The approximate power enables a determination of actual signal-to-noise ratio in the electronic system and a determination of a variety of other signal-to-noise determinations without the use of multipliers.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: June 27, 2000
    Assignee: Agilent Technologies, Inc.
    Inventors: William J. Hillery, V. Rao Sattiraju
  • Reduced-tap filter in a demodulator
    Patent number: 5969570
    Abstract: A demodulator with a filter having a reduced number of filter taps without a sacrifice in filter accuracy. The demodulator includes elements that generate a data stream that carries a component of an input signal in response to a data stream that carries samples of the input signal. The demodulator also includes elements that generate a sample clock for sampling the input signal such that the sample clock is preselected to cause the data stream that carries the component to carry alternating samples that are substantially equal to zero. The filter in the demodulator has a set of filter taps which are arranged to tap only the samples in the data stream that carries the component that are not substantially equal to zero.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: October 19, 1999
    Assignee: Hewlett-Packard Company
    Inventors: Mark Unkrich, William J. Hillery, V. Rao Sattiraju