Patents by Inventor Robert B. Pickett

Robert B. Pickett 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).

  • Co-channel multiple signal broadcasting system
    Patent number: 4051438
    Abstract: Interference in the overlapping of at least two transmission transmitters areas of a co-channel multiple signal broadcasting system is suppressed by an asymmetrical radio frequency carrier deviation in one given direction of one of the two transmitters and an asymmetrical radio frequency carrier deviation in a direction opposite to the one given direction of the other of the two transmitters. The oppositely directed asymmetrical carrier deviations create a .+-. 2.5 kHz rms carrier frequency offset from the nominal carrier frequency in a manner which is compatible with present FCC regulations.
    Type: Grant
    Filed: September 11, 1975
    Date of Patent: September 27, 1977
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Robert B. Pickett, Elie J. Baghdady