Patents by Inventor William V. Powell, Jr.

William V. Powell, Jr. 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).

  • Telephone answering machine having solid state and magnetic tape storage for outgoing announcements
    Patent number: 4959852
    Abstract: A telephone answering machine having solid state storage of an outgoing announcement (OGA) is improved by magnetic tape apparatus 120 for providing backup protection of the OGA in the event of a power failure. Also stored on the magnetic tape is the time duration of the OGA. Analog to digital conversion of the OGA, for storage in Dynamic Random Access Memories 210, 220 and 230, proceeds at a sampling rate that is inversely proportional to the time duration of the OGA to assure that the available memory space is fully utilized.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: September 25, 1990
    Assignee: AT&T Information Systems Inc.
    Inventors: Ronald J. Kern, Alan D. Michel, William V. Powell, Jr.