Patents by Inventor Thomas B. Manuel

Thomas B. Manuel 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: 5661485
    Abstract: An apparatus and method of homodyne reception includes power divider circuitry for providing first and second signals from an input signal. Oscillator circuitry generates first and second oscillator signals. The first signal and second oscillator signal are mixed and the second signal and the second oscillator signal are mixed in first and second modulator circuitry, respectively, to provide first and second mixed signals which are further mixed together in image reject mixer circuitry. Amplifiers are used to amplify one of the signals before it is mixed with an oscillator signal and to amplify one of the mixed signals before it is mixed with the other mixed signal in the image reject mixer circuitry. In each of the mixing steps of the preferred embodiment is a filter which filters out spurs in the signals.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: August 26, 1997
    Assignee: Condor Systems, Inc.
    Inventor: Thomas B. Manuel