Patents by Inventor Robert E. Askew

Robert E. Askew 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).

  • Radio frequency signal transmission system with carrier frequencies at opposite edges of the channel
    Patent number: 4761821
    Abstract: A radio frequency transmitter simultaneously transmits both a local oscillator frequency and that frequency modulated by an information content signal. A receiver receives a carrier wave that is at the opposite edge of a channel from that of the local oscillator. The transmitted and received information signals can be of opposite type sidebands.
    Type: Grant
    Filed: July 15, 1986
    Date of Patent: August 2, 1988
    Assignee: RCA Corporation
    Inventors: Daniel D. Mawhinney, Robert E. Askew