Patents by Inventor Howard Robert Mathwich

Howard Robert Mathwich 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).

  • Transmitter for frequency shift keyed modulation
    Patent number: 3938045
    Abstract: A transmitter for communicating binary data by minimum shift keying (MSK) wherein control of the radiated spectrum of the transmitted signal is achieved by controlling the rate of switching between mark and space frequency signals such that the MSK switch acts as an equivalent of a low pass filter.
    Type: Grant
    Filed: July 3, 1974
    Date of Patent: February 10, 1976
    Assignee: RCA Corporation
    Inventor: Howard Robert Mathwich