Patents by Inventor Robert Clair True

Robert Clair True 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).

  • Apparatus for blocking voice band signals when receiving caller identification information for a waiting call
    Patent number: 5901212
    Abstract: An improved caller identity on call waiting unit permits caller identification signals to be received without changing the direct current state of a customer telephone station. This is accomplished by using a capacitor/inductor circuit with appropriate bypass to accomplish the function of blocking voice band signals to and from the station. Advantageously, such an arrangement avoids the problem of falsely disconnecting calls on hold.
    Type: Grant
    Filed: February 3, 1997
    Date of Patent: May 4, 1999
    Assignee: Lucent Technologies Inc.
    Inventors: Robert Clair True, Brian Albert Wittman