Patents by Inventor Thomas J. Haley

Thomas J. Haley 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).

  • Carrier supply for frequency division multiplexed systems
    Patent number: RE31295
    Abstract: The terminals in the frequency division multiplexed systems of the prior art employ many steps of modulation whose frequency variations, due to changes in the frequencies generated by the carrier oscillators, add to produce a frequency offset which is unacceptable in modern wideband systems. The terminals of the present invention use additional modulators connected to the carrier oscillators to reduce the frequency offset of the transmitted signal to the frequency variations of only a single oscillator.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: June 28, 1983
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Thomas J. Haley, Thomas B. Merrick, James S. Ronne