Patents by Inventor Kelvin Kwok-Cheung Ng

Kelvin Kwok-Cheung Ng 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).

  • Power conservation using gray-coded address sequencing
    Patent number: 9281817
    Abstract: A multiplexer tree operable to control an output a sequence of data stored in a plurality of storage units in accordance with a non-linear address sequence that has less bit transition counts than a linear address sequence. The non-linear address sequence is provided to the selection inputs of the multiplexer tree and causes the levels having greater numbers of multiplexers to toggle less frequently than the levels having smaller numbers of multiplexers. The non-linear address sequence may comprise a Gray code sequence where every two adjacent addresses differ by a single bit. The non-linear address sequence may be optimized to minimize transistor switching in the multiplexer tree.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: March 8, 2016
    Assignee: NVIDIA CORPORATION
    Inventors: Robert A. Alfieri, Kelvin Kwok-Cheung Ng
  • POWER CONSERVATION USING GRAY-CODED ADDRESS SEQUENCING
    Publication number: 20140184268
    Abstract: A multiplexer tree operable to control an output a sequence of data stored in a plurality of storage units in accordance with a non-linear address sequence that has less bit transition counts than a linear address sequence. The non-linear address sequence is provided to the selection inputs of the multiplexer tree and causes the levels having greater numbers of multiplexers to toggle less frequently than the levels having smaller numbers of multiplexers. The non-linear address sequence may comprise a Gray code sequence where every two adjacent addresses differ by a single bit. The non-linear address sequence may be optimized to minimize transistor switching in the multiplexer tree.
    Type: Application
    Filed: December 31, 2012
    Publication date: July 3, 2014
    Applicant: NVIDIA CORPORATION
    Inventors: Robert A. Alfieri, Kelvin Kwok-Cheung Ng