Patents by Inventor Mohammad H. Shakiba

Mohammad H. Shakiba 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).

  • Adaptive equalization system and method having a lock-up-free quantized feedback DC restoration circuit
    Patent number: 8085839
    Abstract: An adaptive equalizer may include one or more equalizing gain stages coupled to an input signal. An automatic gain control circuit may be used to control the gain of the one or more equalizing gain stages, the automatic gain control circuit having an AGC reference input. A dual-output DC restoration circuit may be coupled to the output of the one or more equalizing gain stages for generating a first output signal using a first hysteresis slicer that DC restores the input signal and for generating a second output signal using a second hysteresis slicer that is coupled to the AGC reference input of the automatic gain control circuit, wherein the second hysteresis slicer introducing less hysteresis than the first hysteresis slicer.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: December 27, 2011
    Assignee: Gennum Corporation
    Inventors: Mohammad H. Shakiba, Eliyahu D. Zamir
  • ADAPTIVE EQUALIZATION SYSTEM AND METHOD HAVING A LOCK-UP-FREE QUANTIZED FEEDBACK DC RESTORATION CIRCUIT
    Publication number: 20090034601
    Abstract: An adaptive equalizer may include one or more equalizing gain stages coupled to an input signal. An automatic gain control circuit may be used to control the gain of the one or more equalizing gain stages, the automatic gain control circuit having an AGC reference input. A dual-output DC restoration circuit may be coupled to the output of the one or more equalizing gain stages for generating a first output signal using a first hysteresis slicer that DC restores the input signal and for generating a second output signal using a second hysteresis slicer that is coupled to the AGC reference input of the automatic gain control circuit, wherein the second hysteresis slicer introducing less hysteresis than the first hysteresis slicer.
    Type: Application
    Filed: December 20, 2007
    Publication date: February 5, 2009
    Inventors: Mohammad H. Shakiba, Eliyahu D. Zamir