Patents by Inventor Timothy M. Burke

Timothy M. Burke 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).

  • Method and apparatus for digital shaping of a digital data stream
    Patent number: 4410955
    Abstract: Digital method and apparatus for generation of a digital data stream with the bit transitions shaped to reduce splatter, and minimize droop and overshoot in a radio communications system utilizing digital coded squelch. A codeword digital data stream, in digitized form, is shaped so that the bit transitions have the form of a portion of a sine waveform and then is applied to a D/A converter. A simple filter follows the D/A converter to attenuate sampling noise.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: October 18, 1983
    Assignee: Motorola, Inc.
    Inventors: Timothy M. Burke, George W. Meyer, John A. Moore