Patents by Inventor Hunyue Yau

Hunyue Yau 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: 6741688
    Abstract: An electronic method and apparatus for handling telephone calls is described. The method includes storing in a memory a telephone number template. The template preferably is as wide as a telephone number is long and identifies one or more telephone number digits by the digit positions within a telephone number field for comparison purposes. The method further includes monitoring a telephone line for a call placed thereon, identifying at least one of the origin and the destination telephone number and storing one or more digits of such identified telephone number in a memory. The method further includes comparing the stored digits of the identified telephone number with the corresponding digits of the stored template. Finally, the method includes processing the call based upon the result of said comparing. Such processing may include any one or more of logging, filtering, blocking, ignoring, rerouting, forwarding, distinctive-ringing and answering the call.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: May 25, 2004
    Assignee: Cisco Technology, Inc.
    Inventor: Hunyue Yau