Patents by Inventor Yuo Chen

Yuo Chen 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).

  • Maximum likelihood sequence estimator which computes branch metrics in real time
    Patent number: 7277506
    Abstract: An improved method and apparatus for Viterbi Algorithm calculations for maximum likelihood sequence estimators in communication receivers is disclosed. The calculations for the maximum likelihood sequence estimator, in accordance with the invention, utilizes a variant of the Viterbi algorithm developed by Ungerboeck in which the associated branch metric calculations for the trellis require the computation of a set of branch metric parameters. An embodiment of the present invention provides for an improved recursive method and apparatus for calculation of the branch metric parameters that reduces the number of processor clock cycles required per state metric calculation. This enables real time computation of the branch metric parameters during execution of the Viterbi Algorithm.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: October 2, 2007
    Assignee: Broadcom Corporation
    Inventors: Stephen P. Pope, Aki Shohara, Yuo Chen, Bryan Chase