Patents by Inventor Vamshi Manthena

Vamshi Manthena 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: 9954539
    Abstract: A method, non-transitory computer readable medium, and circuit for clock phase generation are disclosed. The circuit includes an injection locked oscillator, a loop controller, and a phase interpolator. The injection locked oscillator includes an input for receiving an injected clock signal and an output for forwarding a set of fixed clock phases. The loop controller includes an input for receiving a phase separation error of the fixed clock phases and an output for forwarding a supply voltage derived from the phase separation error. The supply voltage matches the free running frequency of the injection locked oscillator to a frequency of the injected clock signal. The phase interpolator includes an input for receiving the set of fixed clock phases directly from the injection locked oscillator, an input for receiving the supply voltage from the loop controller, and an output for forwarding an arbitrary clock phase.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: April 24, 2018
    Assignee: XILINX, INC.
    Inventors: Jinyung Namkoong, Mayank Raj, Parag Upadhyaya, Vamshi Manthena, Catherine Hearne, Marc Erett
  • Publication number: 20180013435
    Abstract: A method, non-transitory computer readable medium, and circuit for clock phase generation are disclosed. The circuit includes an injection locked oscillator, a loop controller, and a phase interpolator. The injection locked oscillator includes an input for receiving an injected clock signal and an output for forwarding a set of fixed clock phases. The loop controller includes an input for receiving a phase separation error of the fixed clock phases and an output for forwarding a supply voltage derived from the phase separation error. The supply voltage matches the free running frequency of the injection locked oscillator to a frequency of the injected clock signal. The phase interpolator includes an input for receiving the set of fixed clock phases directly from the injection locked oscillator, an input for receiving the supply voltage from the loop controller, and an output for forwarding an arbitrary clock phase.
    Type: Application
    Filed: July 11, 2016
    Publication date: January 11, 2018
    Applicant: Xilinx, Inc.
    Inventors: Jinyung Namkoong, Mayank Raj, Parag Upadhyaya, Vamshi Manthena, Catherine Hearne, Marc Erett