Patents by Inventor Venkatesh Acharya

Venkatesh Acharya 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).

  • DELTA-SIGMA ANALOG-TO-DIGITAL CONVERTER TOPOLOGY WITH IMPROVED DISTORTION PERFORMANCE
    Publication number: 20170317685
    Abstract: A delta-sigma Analog-to-Digital Converter (ADC) (IC) which includes an input feed-forward path extending from an input to the ADC to a feed-forward summing circuit disposed between a loop filter and quantizer of the ADC, and a filter disposed in the feed-forward path as an apparatus for improving distortion performance in the delta-sigma ADC. The filter may be a low pass filter, for example, a Resistor-Capacitor (RC) circuit. The filter may have a cut-off frequency outside the ADC's passband. The filtering provided may be continuous-time filtering, even if the delta-sigma ADC is a discrete-time delta-sigma ADC.
    Type: Application
    Filed: July 17, 2017
    Publication date: November 2, 2017
    Inventors: Amit K. Gupta, Peng Cao, Venkatesh Acharya
  • Delta-sigma analog-to-digital converter topology with improved distortion performance
    Patent number: 9729165
    Abstract: A delta-sigma Analog-to-Digital Converter (ADC) (IC) which includes an input feed-forward path extending from an input to the ADC to a feed-forward summing circuit disposed between a loop filter and quantizer of the ADC, and a filter disposed in the feed-forward path as an apparatus for improving distortion performance in the delta-sigma ADC. The filter may be a low pass filter, for example, a Resistor-Capacitor (RC) circuit. The filter may have a cut-off frequency outside the ADC's passband. The filtering provided may be continuous-time filtering, even if the delta-sigma ADC is a discrete-time delta-sigma ADC.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: August 8, 2017
    Assignee: Texas Instruments Incorporated
    Inventors: Amit K. Gupta, Peng Cao, Venkatesh Acharya
  • Delta-Sigma Analog-to-Digital Converter Topology with Improved Distortion Performance
    Publication number: 20160336956
    Abstract: A delta-sigma Analog-to-Digital Converter (ADC) (IC) which includes an input feed-forward path extending from an input to the ADC to a feed-forward summing circuit disposed between a loop filter and quantizer of the ADC, and a filter disposed in the feed-forward path as an apparatus for improving distortion performance in the delta-sigma ADC. The filter may be a low pass filter, for example, a Resistor-Capacitor (RC) circuit. The filter may have a cut-off frequency outside the ADC's passband. The filtering provided may be continuous-time filtering, even if the delta-sigma ADC is a discrete-time delta-sigma ADC.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 17, 2016
    Inventors: Amit K. Gupta, Peng Cao, Venkatesh Acharya