Patents by Inventor Rakers L Patrick

Rakers L Patrick 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).

  • Patent number: 8638836
    Abstract: A transceiver mitigates signal leakage into a receive path from a transmit path. A subtraction circuit determines a difference between a receive signal and a compensation signal to produce a compensated receive signal prior to demodulation by a demodulator. An equalizer both amplitude adjusts and phase adjusts orthogonal baseband transmit signals based on the difference from the subtraction circuit to produce the compensation signal. A digital tuning circuit determines at least one amplitude adjust coefficient to be used by the equalizer. The equalizer can have a polarity switch or a variable attenuator or a variable delay.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: January 28, 2014
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Pallab Midya, Rakers L Patrick, William J Roeckner