Patents by Inventor Roger Allen Radosevich

Roger Allen Radosevich 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).

  • Amplifier circuit for increasing transmit and receive levels in a telephone hybrid network
    Patent number: 3963876
    Abstract: A telephone amplifier circuit comprising a transmit amplifier and a receive amplifier provides gain in both the transmit and the receive directions. Loss is voice-switched into the receive amplifier in response to the sum of the transmit and receive speech levels to provide sidetone and gain control.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: June 15, 1976
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Roger Edward Holtz, Roger Allen Radosevich