Patents by Inventor Vivek Uppal

Vivek Uppal 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: 9832008
    Abstract: A method, algorithm, architecture, circuit and/or system that compensates for frequency difference in oversampled CDRs. The oversampled CDR uses a programmable divider whose division ratio is changed, for one or more cycles, from its usual division ratio, when accumulated phase movement in either direction exceeds a threshold. Accordingly, the elasticity buffer in oversampled CDRs can be made much smaller or entirely eliminated, resulting in less area, and reduced or eliminated dependence of max allowed burst size on ppm difference. The threshold can be kept programmable, and more than half unit interval, to provide robustness towards high frequency jitter.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: November 28, 2017
    Assignee: STMicroelectronics International N.V.
    Inventors: Abhishek Chowdhary, Vivek Uppal, Alok Kaushik, Sajal Kumar Mandal, Tapas Nandy, Sanjeev Chopra
  • Patent number: 9705665
    Abstract: A method, algorithm, architecture, circuit and/or system that compensates for frequency difference in oversampled CDRs. The oversampled CDR uses a programmable divider whose division ratio is changed, for one or more cycles, from its usual division ratio, when accumulated phase movement in either direction exceeds a threshold. Accordingly, the elasticity buffer in oversampled CDRs can be made much smaller or entirely eliminated, resulting in less area, and reduced or eliminated dependence of max allowed burst size on ppm difference. The threshold can be kept programmable, and more than half unit interval, to provide robustness towards high frequency jitter.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: July 11, 2017
    Assignee: STMicroelectronics International N.V.
    Inventors: Abhishek Chowdhary, Vivek Uppal, Alok Kaushik, Sajal Kumar Mandal, Tapas Nandy, Sanjeev Chopra
  • Patent number: 9356770
    Abstract: A method, algorithm, architecture, circuit and/or system that compensates for frequency difference in oversampled CDRs. The oversampled CDR uses a programmable divider whose division ratio is changed, for one or more cycles, from its usual division ratio, when accumulated phase movement in either direction exceeds a threshold. Accordingly, the elasticity buffer in oversampled CDRs can be made much smaller or entirely eliminated, resulting in less area, and reduced or eliminated dependence of max allowed burst size on ppm difference. The threshold can be kept programmable, and more than half unit interval, to provide robustness towards high frequency jitter.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: May 31, 2016
    Assignee: STMicroelectronics International N.V.
    Inventors: Abhishek Chowdhary, Vivek Uppal, Alok Kaushik, Sajal Kumar Mandal, Tapas Nandy, Sanjeev Chopra
  • Publication number: 20160149695
    Abstract: A method, algorithm, architecture, circuit and/or system that compensates for frequency difference in oversampled CDRs. The oversampled CDR uses a programmable divider whose division ratio is changed, for one or more cycles, from its usual division ratio, when accumulated phase movement in either direction exceeds a threshold. Accordingly, the elasticity buffer in oversampled CDRs can be made much smaller or entirely eliminated, resulting in less area, and reduced or eliminated dependence of max allowed burst size on ppm difference. The threshold can be kept programmable, and more than half unit interval, to provide robustness towards high frequency jitter.
    Type: Application
    Filed: January 28, 2016
    Publication date: May 26, 2016
    Inventors: Abhishek CHOWDHARY, Vivek UPPAL, Alok KAUSHIK, Sajal Kumar MANDAL, Tapas NANDY, Sanjeev CHOPRA
  • Publication number: 20160119117
    Abstract: A method, algorithm, architecture, circuit and/or system that compensates for frequency difference in oversampled CDRs. The oversampled CDR uses a programmable divider whose division ratio is changed, for one or more cycles, from its usual division ratio, when accumulated phase movement in either direction exceeds a threshold. Accordingly, the elasticity buffer in oversampled CDRs can be made much smaller or entirely eliminated, resulting in less area, and reduced or eliminated dependence of max allowed burst size on ppm difference. The threshold can be kept programmable, and more than half unit interval, to provide robustness towards high frequency jitter.
    Type: Application
    Filed: December 31, 2015
    Publication date: April 28, 2016
    Inventors: Abhishek CHOWDHARY, Vivek UPPAL, Alok KAUSHIK, Sajal Kumar MANDAL, Tapas NANDY, Sanjeev CHOPRA
  • Publication number: 20150280898
    Abstract: A method, algorithm, architecture, circuit and/or system that compensates for frequency difference in oversampled CDRs. The oversampled CDR uses a programmable divider whose division ratio is changed, for one or more cycles, from its usual division ratio, when accumulated phase movement in either direction exceeds a threshold. Accordingly, the elasticity buffer in oversampled CDRs can be made much smaller or entirely eliminated, resulting in less area, and reduced or eliminated dependence of max allowed burst size on ppm difference. The threshold can be kept programmable, and more than half unit interval, to provide robustness towards high frequency jitter.
    Type: Application
    Filed: March 31, 2014
    Publication date: October 1, 2015
    Applicant: STMicroelectronics International N.V.
    Inventors: Abhishek Chowdhary, Vivek Uppal, Alok Kaushik, Sajal Kumar Mandal, Tapas Nandy, Sanjeev Chopra