Patents by Inventor David H. Spensley, Jr.

David H. Spensley, 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).

  • Frequency synthesizer with programming feedback
    Patent number: 5257409
    Abstract: This disclosure discusses a programmable frequency synthesizer arrangement having programming feedback capability used to avoid undesirable operation due to random hard and soft faults. The arrangement operates by supplying appropriate programming information, receiving the same, subject to random hard or soft faults, and, in response, directing the operation of a frequency synthesizer (10). The feedback capability is accomplished by generating a feedback signal (35, 36) indicative of the programming information as applied to the frequency synthesizer, generating a reference signal representative of the appropriate programming information, comparing the two signals, and blocking undesirable operation of the frequency synthesizer if the comparison indicates the occurrence of a random hard or soft fault. Further disclosed is a wireless communications transceiver with the programmable frequency synthesizer arrangement.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: October 26, 1993
    Assignee: Motorola, Inc.
    Inventors: Robert J. Sarocka, David D. Neperud, Peter P. Walter, Tim J. Manczko, David H. Spensley, Jr.