Patents by Inventor Eldred H. Wiechmann

Eldred H. Wiechmann 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).

  • Signal seeking stop circuit for amplitude modulated receiver
    Patent number: 4262363
    Abstract: A circuit for terminating the signal seeking mode of operation of an AM receiver includes a comparator which responds to a composite signal comprising a broadband IF signal and the detected IF signal strength. A control signal is produced when the composite signal exceeds a predetermined threshold. The broadband component of the composite signal is effective as a blanking potential when the receiver is off-channel. A second comparator is utilized to establish local sensitivity so that local and distant sensitivity settings are not interrelated.
    Type: Grant
    Filed: August 8, 1979
    Date of Patent: April 14, 1981
    Assignee: General Motors Corporation
    Inventors: Eldred H. Wiechmann, Richard A. Kennedy, Myron G. Padgett