Patents by Inventor Tze Yin Cheung

Tze Yin Cheung 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).

  • Configurable transmitter device based on data rate
    Patent number: 11907004
    Abstract: A transmitter device includes a configurable timer circuit that adjusts timing of input data for serial transmission of the input data. The configurable timer circuit may be configured depending on the configured data rate of the transmitter device. In one embodiment, the configurable timer circuit includes a plurality of configurable retimers that retime the input data where at least a portion of one of the plurality of configurable retimers is enabled based on the configured data rate.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: February 20, 2024
    Assignee: ETOPUS TECHNOLOGY INC.
    Inventors: Tze Yin Cheung, Paul K. Lai, Danfeng Xu
  • CONFIGURABLE TRANSMITTER DEVICE BASED ON DATA RATE
    Publication number: 20230418322
    Abstract: A transmitter device includes a configurable timer circuit that adjusts timing of input data for serial transmission of the input data. The configurable timer circuit may be configured depending on the configured data rate of the transmitter device. In one embodiment, the configurable timer circuit includes a plurality of configurable retimers that retime the input data where at least a portion of one of the plurality of configurable retimers is enabled based on the configured data rate.
    Type: Application
    Filed: June 27, 2022
    Publication date: December 28, 2023
    Inventors: Tze Yin Cheung, Paul K. Lai, Danfeng Xu
  • Multi mode viterbi decoder
    Patent number: 9705531
    Abstract: A multi-mode viterbi decoder supporting different decoding modes. The viterbi decoder comprises circuitry to output one or more data symbol values. The circuitry sets the one or more data symbol values to a first quantity of unit intervals in a first decoding mode (e.g. PAM-4). The circuitry sets the one or more data symbol values to a second quantity of unit intervals in a second decoding mode (e.g. NRZ). The second quantity of unit intervals is greater than the first quantity of unit intervals. A branch metric circuit is adapted to, in the first decoding mode, generate a set of viterbi branch metrics based on the data symbol values for the first quantity of unit intervals. The branch metric circuit is adapted to, in the second decoding mode, generate the set of viterbi branch metrics based on the data symbol values for the second quantity of unit intervals.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: July 11, 2017
    Assignee: eTopus Technology Inc.
    Inventors: Kai Keung Chan, Yu Kou, Tze Yin Cheung, Danfeng Xu
  • Multi Mode Viterbi Decoder
    Publication number: 20160241274
    Abstract: A multi-mode viterbi decoder supporting different decoding modes. The viterbi decoder comprises circuitry to output one or more data symbol values. The circuitry sets the one or more data symbol values to a first quantity of unit intervals in a first decoding mode (e.g. PAM-4). The circuitry sets the one or more data symbol values to a second quantity of unit intervals in a second decoding mode (e.g. NRZ). The second quantity of unit intervals is greater than the first quantity of unit intervals. A branch metric circuit is adapted to, in the first decoding mode, generate a set of viterbi branch metrics based on the data symbol values for the first quantity of unit intervals. The branch metric circuit is adapted to, in the second decoding mode, generate the set of viterbi branch metrics based on the data symbol values for the second quantity of unit intervals.
    Type: Application
    Filed: February 18, 2015
    Publication date: August 18, 2016
    Inventors: Kai Keung Chan, Yu Kou, Tze Yin Cheung, Danfeng Xu