Patents by Inventor Chieh-wen K. Tsai

Chieh-wen K. Tsai 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: 7453826
    Abstract: Managing a multicast conference call includes receiving signals at a local endpoint participating in a multicast conference call with remote endpoints. The signals include a local signal associated with the local endpoint and remote signals, where each remote signal is associated with a remote endpoint. Metric ratings are determined, where each metric rating reflects an importance of a signal. The metric ratings include a local metric rating corresponding to the local signal and remote metric ratings, where each remote metric rating corresponds to a remote signal. The local metric rating and the remote metric ratings are compared, and a subset of signals is selected according to the comparison.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: November 18, 2008
    Assignee: Cisco Technology, Inc.
    Inventors: Herbert M. Wildfeuer, Chieh-wen K. Tsai