Patents by Inventor Guhaprakash Amudhan

Guhaprakash Amudhan 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).

  • Apparatus and system to suppress analog front end noise introduced by charge-pump through employment of charge-pump skipping
    Patent number: 8730075
    Abstract: An apparatus, comprising: a charge-pump; a sampler that samples an optical signal, including: a black sampler; a video sampler; and an analog to digital converter. The first aspect further provides a single clock that is coupled to and provides clocking signals to: a) the charge-pump logic that is coupled to the charge-pump; and b) the sampler logic that is coupled to the sampler that samples the optical signal, wherein if the clock for the charge pump is running faster than an analog front end (“AFE”) video sampling clock, a state-machine control is configured to: skip the charge pump clock period right before a video sample signal falling edge, thereby recovering to a normal operation the next charge-pump clock period, wherein this duty cycle modulation of charge pump clock will not substantially impact charge pump output.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: May 20, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Sualp Aras, Guhaprakash Amudhan, Abidur Rahman, Xiaochun Zhao
  • Apparatus and system to suppress analog front end noise introduced by charge-pump
    Patent number: 8593317
    Abstract: An apparatus, comprising: a charge-pump; a sampler that samples an optical signal, including: a black sampler; a video sampler; and an analog to digital converter. The first aspect further provides a single clock that is coupled to and provides clocking signals to: a) the charge-pump logic that is coupled to the charge-pump; and b) the sampler logic that is coupled to the sampler that samples the optical signal.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: November 26, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Sualp Aras, Guhaprakash Amudhan, Md Abidur Rahman, Xiaochun Zhao
  • APPARATUS AND SYSTEM TO SUPPRESS ANALOG FRONT END NOISE INTRODUCED BY CHARGE-PUMP
    Publication number: 20120176175
    Abstract: An apparatus, comprising: a charge-pump; a sampler that samples an optical signal, including: a black sampler; a video sampler; and an analog to digital converter. The first aspect further provides a single clock that is coupled to and provides clocking signals to: a) the charge-pump logic that is coupled to the charge-pump; and b) the sampler logic that is coupled to the sampler that samples the optical signal.
    Type: Application
    Filed: January 6, 2011
    Publication date: July 12, 2012
    Inventors: Sualp Aras, Guhaprakash Amudhan, Md Abidur Rahman, Xiaochun Zhao