Patents by Inventor Selwyn B. Goldberg

Selwyn B. Goldberg 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).

  • Amplitude control apparatus
    Patent number: 4468631
    Abstract: The DC component of an input signal is regulated at a constant amplitude to provide a resultant signal that is coupled to an output node via variable transmission means to provide a processed output signal. Feedback control means, coupled to the variable transmission means, regulates the DC component of the processed output signal linearly in accordance with the amplitude of a gain control signal thereby providing corresponding linear changes in the amplitude of the AC component of the processed output signal without need for linear transmission elements in the variable transmission means.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: August 28, 1984
    Assignee: RCA Corporation
    Inventor: Selwyn B. Goldberg