Patents by Inventor Ralph Enderby

Ralph Enderby 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
    Patent number: 4714899
    Abstract: A programmable frequency synthesizer is disclosed having most components implemented on a single large scale integration (LSI) chip, which facilitates rapid frequency acquisition. Provision is made by the present invention to configure the frequency synthesizer for use in either a receiver or a transmitter. In the transmitter mode, modulation cancelling allows modulation down to approximate DC. A serial programming protocol is provided to program the frequency synthesizer.
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: December 22, 1987
    Assignee: Motorola, Inc.
    Inventors: Gary Kurtzman, Joseph P. Heck, Kenneth A. Hansen, Ralph Enderby, Bronis Vidugiris