Patents by Inventor Julia A. O'Keefe

Julia A. O'Keefe 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).

  • Serving cellular calls to stations at the boundary between switch serving areas
    Patent number: 5381464
    Abstract: A method of establishing a telecommunications call connection in a cellular wireless system. If a mobile station is near the border between areas served by two mobile switching center (MSCs) then the mobile is paged from appropriate base stations of one of the MSCs while the other MSC is alerted to listen for page responses from the paged mobile station. Advantageously, the number of paging orders is substantially reduced thus increasing the call handling capacity of the base station systems. The second MSC is initialized to be prepared to process a page response from the mobile station being paged from the base stations of the first MSC. Advantageously, this permits straightforward recognition of a valid paging response and a record of the call with which that response is associated.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: January 10, 1995
    Assignee: AT&T Corp.
    Inventors: Julia A. O'Keefe, Douglas H. Riley, Kenneth W. Shelhamer