Patents by Inventor Sam G. Sabapathy

Sam G. Sabapathy 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).

  • Ring oscillator pulse width modulation circuitry with programmable delay circuitry
    Patent number: 9500534
    Abstract: A method of programming a ring oscillator for use as a temperature sensor comprises selecting an initial number of delay elements for use in a ring oscillator. The method further comprise starting a system clock counter and counting pulses of the ring oscillator until the system clock counter reaches a programmed value. The method also comprises determining whether a number of counted ring oscillator pulses is between lower and upper count thresholds and changing the number of delay elements for the ring oscillator as a result of the number of counted ring oscillator pulses being less than the lower count threshold or greater than the upper count threshold.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: November 22, 2016
    Assignee: Texas Instruments Incorporated
    Inventors: Sam G. Sabapathy, Christine Chang
  • PROGRAMMABLE RING OSCILLATOR USED AS A TEMPERATURE SENSOR
    Publication number: 20150333747
    Abstract: A method of programming a ring oscillator for use as a temperature sensor comprises selecting an initial number of delay elements for use in a ring oscillator. The method further comprise starting a system clock counter and counting pulses of the ring oscillator until the system clock counter reaches a programmed value. The method also comprises determining whether a number of counted ring oscillator pulses is between lower and upper count thresholds and changing the number of delay elements for the ring oscillator as a result of the number of counted ring oscillator pulses being less than the lower count threshold or greater than the upper count threshold.
    Type: Application
    Filed: July 24, 2015
    Publication date: November 19, 2015
    Inventors: Sam G. Sabapathy, Christine Chang
  • System clock counter counting ring oscillator pulses during programmed value
    Patent number: 9121767
    Abstract: A method of programming a ring oscillator for use as a temperature sensor comprises selecting an initial number of delay elements for use in a ring oscillator. The method further comprise starting a system clock counter and counting pulses of the ring oscillator until the system clock counter reaches a programmed value. The method also comprises determining whether a number of counted ring oscillator pulses is between lower and upper count thresholds and changing the number of delay elements for the ring oscillator as a result of the number of counted ring oscillator pulses being less than the lower count threshold or greater than the upper count threshold.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: September 1, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Sam G. Sabapathy, Christine Chang
  • Temperature sensor programmable ring oscillator, processor, and pulse width modulator
    Patent number: 8373482
    Abstract: A method of programming a ring oscillator for use as a temperature sensor comprises selecting an initial number of delay elements for use in a ring oscillator. The method further comprise starting a system clock counter and counting pulses of the ring oscillator until the system clock counter reaches a programmed value. The method also comprises determining whether a number of counted ring oscillator pulses is between lower and upper count thresholds and changing the number of delay elements for the ring oscillator as a result of the number of counted ring oscillator pulses being less than the lower count threshold or greater than the upper count threshold.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: February 12, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Sam G. Sabapathy, Christine J. Chang