DR. GUY YVES PELCHAT, D.C.
Chiropractic at Wickham Rd, Melbourne, FL

4220923, Sep 2, 1980

Mar 29, 1978

5/891336

Guy M. Pelchat - Indialantic FL
Charles A. Baird - Palm Bay FL

Harris Corporation - Cleveland OH

H04B 110

455295

An adaptive interference reduction system for removing cross talk from a dual polarization system comprising a first adjustable filter for varying the phase and the weight of a first input signal, a second adjustable filter for varying the phase and the weight of a second input signal, a first adder for adding this first input signal and the weighted and phase adjusted output from the second adjustable filter, a second adder for adding the second input signal and the weighted and phase adjusted output from the first adjustable filter, a first noise-to-signal measuring device for generating a signal proportional to the noise-to-signal ratio in the output signal from the first adder, a second noise-to-signal measuring device for generating a signal proportional to the noise-to-signal ratio in the output signal from the second adder, and a dither-type control logic for dithering in-phase and quadrature square-waves in accordance with the signals generated by the first and second noise-to-signal measuring devices to control the first and second adjustable filters. This system is further characterized in that the first and second noise-to-signal measuring devices comprise a slow response control circuit for maintaining the average value of the input signal from the adder at a reference value, and means for filtering this averaged value and detecting the power fluctuations remaining in the signal and generating a signal proportional to these fluctuations. Additionally, the first and second adjustable filters may be structured to have transfer functions across a predetermined bandwidth of W. sub. 0 [1+W. sub. 1. omega. +W. sub. 2. omega. sup. 2 ] or W. sub. 0 [1+W. sub. 1. omega. +W. sub. 2. omega. sup. 2 +W. sub. 3. omega. sup.

4233576, Nov 11, 1980

May 16, 1978

5/906687

Guy M. Pelchat - Indialantic FL

Harris Corporation - Cleveland OH

H01P 116, H04B 110

333 16

An automatic polarization decoupling circuit for decoupling first and second signals originally transmitted with orthogonal polarizations comprising a rotatable quarter-wave plate and a rotatable half-wave plate for linearizing the first signal and rotating its polarization direction to a reference polarization direction, an Orthomode (trademark) transducer for separating energy in the reference polarization direction from energy with a polarization in quadrature thereto and utilizing this quadrature energy as the decoupled second signal. The system further comprises a second Orthomode transducer for recombining the in-phase and quadrature energy separated by the first Orthomode transducer and applying this recombined energy to a second rotatable quarter-wave plate and a second rotatable half-wave plate for linearizing the second signal and rotating its polarization direction to a direction in quadrature with the reference polarization direction. A third Orthomode transducer is provided to separate the energy in this quadrature reference polarization direction from the energy polarized in the reference direction. The reference direction energy separated by this third Orthomode transducer comprises the first signal in decoupled form.

4710723, Dec 1, 1987

Apr 4, 1986

6/848269

Guy Pelchat - Indialantic FL
Luther L. Crabtree - Melbourne FL

Harris Corporation - Melbourne FL

H03D 104, H04B 110, H04B 1500

329192

To enhance the detection of a desired signal in the presence of interference, the degree of modulation of a received input signal is amplified. In the preferred embodiments, this is accomplished by amplifying the degree of amplitude modulation. This works especially well in situations where constant or substantially constant envelope jamming is employed. However, the arrangement is also effective in some cases where the jamming signal has a rapidly fluctuating envelope. The success of the technique in cases of rapidly fluctuating envelopes depends upon the probability distribution of the envelope.

5455960, Oct 3, 1995

Jan 16, 1992

7/821392

Guy M. Pelchat - Melbourne FL
Stephen G. Powers - Indian Harbour Beach FL
Raymond F. Cobb - Melbourne Beach FL
Robert C. Hildebrand - Indialantic FL

Harris Corporation - Melbourne FL

H04B 7185

455 121

A satellite communications scheme for enhancing the communications system with existing satellites is disclosed. The existing satellites include a transponder having a phase locked loop phase demodulator at the front end thereof. The present invention discloses a technique wherein the phase demodulator is locked by transmitting a relatively high-power carrier from the ground to the satellite transponder. Once the demodulator has been locked, remote ground terminals operating at much lower power levels can access the satellite transponder by transmitting at carrier frequencies spaced apart from the primary high-power carrier. These are down-converted by the transponder phase demodulator and then typically amplitude and frequency limited before being remodulated and retransmitted.

4264908, Apr 28, 1981

Mar 6, 1979

6/017887

Robert A. Administrator of the National Aeronautics and Space Frosch
Guy M. Pelchat - Indialantic FL
George G. Rassweiler - Indialantic FL
Anthony J. Gianatasio - Indialantic FL
Lock R. Young - Palm Bay FL

H04B 700, H01Q 1524

343100PE

A broadband adaptively controlled polarization separation network. Two transmitted signals vertically and horizontally polarized are received as elleptically polarized signals. One of the two received elliptically polarized signals is automatically adjusted to make it linear and thereafter automatically adjusted to make it vertical. If the other signal does not have any vertical polarization on it then the two signals are easily separated and nothing else is needed. However, if there is any vertical polarization on the other signal this invention provides for separating the resulting crosstalk between the two signals. This is done automatically by the use of two sets of crosscouplers which couple a single line to the other line to complete the polarization decoupling operation.