Patents by Inventor Clifford E. Barrett, III

Clifford E. Barrett, III 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: 5010330
    Abstract: A paging system which provides both individual and information services includes a transmitter which transmits page call address and data periodically in batches to subscribing paging receivers. Each batch comprising a synchronization code followed by a predetermined plurality of sequential frames. Each paging receiver searches for both its individual service address and a first information service address in its corresponding assigned frame of each batch of a transmission period, and in response to reception of the first information service address, searches for a second information service address in a designated common frame of each batch of a transmission period. Individual and information service data messages are obtained from frames immediately subsequent the frame in which the respective individual and second information service addresses are found.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: April 23, 1991
    Assignee: Motorola, Inc.
    Inventors: Gregory O. Snowden, Clifford E. Barrett, III, Fernando Gomez
  • Patent number: 5001471
    Abstract: A paging system which provides both individual and information services includes a transmitter for transmitting page call address and data periodically in batches, and a population of battery saver paging receivers for receiving the transmitted call information. Each transmission batch comprises a synchronization code followed by a predetermined plurality of sequential frames. Each subscribing receiver searches for its individual service address in a first designated frame of each batch of a transmission period, and in addition, searches for its information service address in a second designated frame of a designated batch of a transmission period. Individual and information service data messages are obtained from frames subsequent the frame at which their respective address is found.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: March 19, 1991
    Assignee: Motorola, Inc.
    Inventors: Gregory O. Snowden, Fernando Gomez, Clifford E. Barrett, III