Patents by Inventor William E. Vice

William E. Vice 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: 4048619
    Abstract: A secure information broadcasting system including a central broadcasting station for encoding data in binary form utilizing a keyword and transmitting on one frequency a FM-SCA signal phase shift modulated by the encoded data. The encoded data is also supplied to one or more remote broadcasting stations, typically via telephone lines, where it is transmitted on a second frequency as a FM-SCA signal phase shift modulated by the encoded data. Each remote station transmits a relatively low power signal in a predetermined local area, such as an office building, while the central station transmits a relatively high power signal in a general area including one or more of the local areas. The general area signal is transmitted with a time delay relative to the remote stations. Each of a plurality of portable receiving terminals has an identification number stored therein.
    Type: Grant
    Filed: September 7, 1976
    Date of Patent: September 13, 1977
    Assignee: Digital Data Inc.
    Inventors: Aubry S. Forman, Jr., Charles A. Schultz, Jr., William E. Vice