DR. ROBERT W DAVIS, PSY. D.
Social Work at Severn Ave, Metairie, LA

6335953, Jan 1, 2002

Nov 2, 1999

09/432258

Robert J. Davis - Metairie LA
Robert E. Rouquette - Kenner LA

Axonn, L.L.C. - New Orleans LA

H04L 2705

375344, 455 674, 455 71

A method utilizing intentionally generated in-band frequency harmonics to compensate for frequency error and frequency drift in a voltage controlled oscillator of a receiver, thereby eliminating the frequency synthesizer and RF divider required in conventional designs. The method includes modulating the intentionally generated frequency in a predetermined manner so that a receiver can identify the intentionally generated frequency and includes the use of plural frequency harmonics for use in a curve fitting technique to correct frequency error in the voltage controlled oscillator.

5668828, Sep 16, 1997

Sep 23, 1994

8/311774

H. Britton Sanderford - New Orleans LA
Robert J. Davis - Metairie LA
Robert E. Rouquette - Kenner LA

Sanconix, Inc. - New Orleans LA

H04B 1713

375202

An enhanced frequency-agile radio for avoiding undesired signal energy, based on a prediction, by scanning an available radio spectrum, measuring a receiver output, identifying an occupied portion of the available spectrum, predicting a level of undesired signal energy in a future scan, and storing the prediction. Enhancements provided by the frequency-agile radio include lowered implementation complexity appropriate for very low cost receivers and transceivers, reduced size due to elimination of larger components allowing for physically small pocket pager applications, increased anti-jam performance appropriate for wide area networks, increased receiver sensitivity and frequency tracking desirable for voice applications, enhanced signal coding error tolerance allowing operation within congested portions of the radio band and additional signal verification means which allow correct data reception from thousands of concurrently operating, collision prone transmit-only devices such as power utility meters and long range security systems.

6111911, Aug 29, 2000

Jun 7, 1995

8/485007

H. Britton Sanderford - New Orleans LA
Robert E. Rouquette - Kenner LA
Robert J. Davis - Metairie LA

Sanconix, Inc - New Orleans LA

H04B 1707

375147

A system and method for receiving direct sequence spread spectrum transmissions with both chip code and frequency uncertainty including a parallel frequency acquisition technique for increasing receiver sensitivity and increasing process gain while reducing a preamble duration required for spread spectrum acquisition. The system and method include techniques for reducing effects of jamming and impulse noise on receiver performance via enhanced antenna diversity by constructively combining received signals. Further, techniques are provided which compensate for chip code alignment drift, providing an associated transmitter maintains carrier and chip code coherence, by comparing received signal energies at varying chip code alignments. These techniques enable the use of lower cost frequency setting crystals in both the receiver and transmitter as well as provide for system operation over a wider temperature range.

6031883, Feb 29, 2000

Sep 16, 1997

8/931416

H. Britton Sanderford - New Orleans LA
Robert J. Davis - Metairie LA
Robert E. Rouquette - Kenner LA

Sanconix, Inc. - New Orleans LA

H04L 2706, H01J 906, H03L 700

375344

A method utilizing intentionally generated in-band frequency harmonics to compensate for frequency error and frequency drift in a voltage controlled oscillator of a receiver, thereby eliminating the frequency synthesizer and RF divider required in conventional designs. The method includes modulating the intentionally generated frequency in a predetermined manner so that a receiver can identify the intentionally generated frequency and includes the use of plural frequency harmonics for use in a curve fitting technique to correct frequency error in the voltage controlled oscillator.