Patents by Inventor Tim Yee He

Tim Yee He 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: 12068748
    Abstract: A device is provided that includes a counter circuit configured to count cycles of an input clock signal and to generate an output clock signal periodically based on a cycle count of the input clock signal; a multi-phase clock generator configured to generate a plurality of multi-phase clock signals from a system clock signal; a multiplexer circuit coupled to the multi-phase clock generator and configured to provide a multi-phase clock signal selected from the plurality of multi-phase clock signals to the counter circuit as the input clock signal; and a selection circuit configured to provide a selection signal to the multiplexer circuit periodically to switch the multi-phase clock signal provided to the counter circuit from a current multi-phase clock signal to a next multi-phase clock signal selected from the plurality of multi-phase clock signals.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: August 20, 2024
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Lakshmi Rao, Siavash Fallahi, Tim Yee He, Ali Nazemi, Jun Cao
  • Publication number: 20240072770
    Abstract: A device is provided that includes a counter circuit configured to count cycles of an input clock signal and to generate an output clock signal periodically based on a cycle count of the input clock signal; a multi-phase clock generator configured to generate a plurality of multi-phase clock signals from a system clock signal; a multiplexer circuit coupled to the multi-phase clock generator and configured to provide a multi-phase clock signal selected from the plurality of multi-phase clock signals to the counter circuit as the input clock signal; and a selection circuit configured to provide a selection signal to the multiplexer circuit periodically to switch the multi-phase clock signal provided to the counter circuit from a current multi-phase clock signal to a next multi-phase clock signal selected from the plurality of multi-phase clock signals.
    Type: Application
    Filed: August 29, 2022
    Publication date: February 29, 2024
    Inventors: Lakshmi RAO, Siavash Fallahi, Tim Yee He, Ali Nazemi, Jun Cao
  • Patent number: 10931288
    Abstract: Disclosed herein are embodiments of an apparatus and a method for generating a quadrature clock signal. In one aspect, the apparatus includes a first delay circuitry to delay a clock signal according to a first control signal to generate a first delayed clock signal. In one aspect, the apparatus includes a second delay circuitry to delay the clock signal according to a second control signal to generate a second delayed clock signal. In one aspect, the apparatus includes a delay controller forming a first feedback loop with the first delay circuitry, and forming a second feedback loop with the second delay circuitry, where the delay controller determines a difference between the first delayed clock signal and the second delayed clock signal and modifies the first control signal and the second control signal according to the determined difference.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: February 23, 2021
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Zhiyu Ru, Tim Yee He, Siavash Fallahi, Ali Nazemi, Delong Cui, Jun Cao
  • Publication number: 20200304129
    Abstract: Disclosed herein are embodiments of an apparatus and a method for generating a quadrature clock signal. In one aspect, the apparatus includes a first delay circuitry to delay a clock signal according to a first control signal to generate a first delayed clock signal. In one aspect, the apparatus includes a second delay circuitry to delay the clock signal according to a second control signal to generate a second delayed clock signal. In one aspect, the apparatus includes a delay controller forming a first feedback loop with the first delay circuitry, and forming a second feedback loop with the second delay circuitry, where the delay controller determines a difference between the first delayed clock signal and the second delayed clock signal and modifies the first control signal and the second control signal according to the determined difference.
    Type: Application
    Filed: December 26, 2019
    Publication date: September 24, 2020
    Inventors: Zhiyu RU, Tim Yee HE, Siavash FALLAHI, Ali NAZEMI, Delong CUI, Jun CAO
  • Patent number: 10523220
    Abstract: Disclosed herein are embodiments of an apparatus and a method for generating a quadrature clock signal. In one aspect, the apparatus includes a first delay circuitry to delay a clock signal according to a first control signal to generate a first delayed clock signal. In one aspect, the apparatus includes a second delay circuitry to delay the clock signal according to a second control signal to generate a second delayed clock signal. In one aspect, the apparatus includes a delay controller forming a first feedback loop with the first delay circuitry, and forming a second feedback loop with the second delay circuitry, where the delay controller determines a difference between the first delayed clock signal and the second delayed clock signal and modifies the first control signal and the second control signal according to the determined difference.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: December 31, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Zhiyu Ru, Tim Yee He, Siavash Fallahi, Ali Nazemi, Delong Cui, Jun Cao