Patents by Inventor Raymond J. Costlow

Raymond J. Costlow 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).

  • Patent number: 4868524
    Abstract: An RF circuit to generate a stable carrier signal using a Voltage Controlled Saw Oscillator (VCSO) is disclosed. The invention teaches the use of a phase lock loop circuit employing a temperature compensated crystal oscillator (TCXO), or similar stable oscillator, to stabilize the output of the VCSO.
    Type: Grant
    Filed: October 20, 1988
    Date of Patent: September 19, 1989
    Assignee: The Johns Hopkins University
    Inventors: Raymond J. Costlow, Alvin G. Bates