Patents by Inventor Sally R. Wixted

Sally R. Wixted 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).

  • Virtual end office in a switched telephone network
    Patent number: 6240173
    Abstract: Methods and apparatus implementing a technique for a virtual end office. The virtual end office includes one or more pre-switch adjuncts forming a single logical construct. Each pre-switch adjunct is connected to a local exchange switch in a telephone network and provides special services to subscribers. The pre-switch adjuncts have a common exchange prefix code and so a subscriber can access special services from anywhere in the network by using the same exchange prefix code, so long as the switch the subscriber is using is connected to a pre-switch adjunct.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: May 29, 2001
    Assignee: 3Com Corporation
    Inventors: Bruce L. Trumbo, Sally R. Wixted