Patents by Inventor Thomas Glenn Perry

Thomas Glenn Perry 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: 5809397
    Abstract: A selective call messaging system comprises a control point satellite uplink (24) for transmission of source information to a satellite (12), the source information having timing information, a base station (16) for receiving the source information from the satellite and for retransmitting the source information to a receiver 18. A synchronization controller 29 is coupled to the receiver 18 and remotely coupled to the control point satellite uplink. The synchronization controller comprises a decoder (40) for decoding the timing information received from the base station to provide actual timing information, an absolute time source (28) that generates a reference time, a comparator (42) for comparing the actual timing information with the reference time to provide an offset signal (44) and a transmitter for forwarding the offset signal to the control point satellite uplink to adjust timing information at the control point satellite uplink.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: September 15, 1998
    Assignee: Motorola, Inc.
    Inventors: Andrew Holloman Harthcock, Soeren Henrik Thomsen, Anselm Irenius Sequeira, Thomas Glenn Perry