Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6792058 | Digital receiving system for dense environment of aircraft | John Erik Hershey, Ralph Thomas Hoctor, Richard August Korkosz | 2004-09-14 |
| 6781513 | Telemetry of diagnostic messages from a mobile asset to a remote station | Richard August Korkosz, John Erik Hershey, William Robert McKinney, Sr., Bruce Gunter Schings, Harold Woodruff Tomlinson, Jr. +2 more | 2004-08-24 |
| 6570497 | Apparatus and method for rail track inspection | Harold Woodruff Tomlinson, Jr., John Erik Hershey, Stephen Michael Hladik | 2003-05-27 |
| 6424250 | Communication system utilizing modified geometric harmonic modulation | Gary J. Saulnier, Richard August Korkosz, John Erik Hershey | 2002-07-23 |
| 6377565 | Adaptive propagation delay compensation for TDMA communications systems | — | 2002-04-23 |
| 6346875 | GHM aggregator | Gary J. Saulnier, Richard August Korkosz, John Erik Hershey | 2002-02-12 |
| 6262659 | Telemetry of diagnostic messages from a mobile asset to a remote station | Richard August Korkosz, William Robert McKinney, Sr., Bruce Gunther Schings, John Anderson Fergus Ross, Naofal Al-Dhahir +2 more | 2001-07-17 |
| 6175934 | Method and apparatus for enhanced service quality through remote diagnostics | John Erik Hershey, Aiman A. Abdel-Malek, John Anderson Fergus Ross | 2001-01-16 |
| 5481532 | Mobile telecommunications device and service | Amer A. Hassan, John Erik Hershey, Howard L. Lester | 1996-01-02 |
| 5444762 | Method and apparatus for reducing interference among cellular telephone signals | Richard Louis Frey, Richard C. Gaus, Jr., Robert Lloyd George, Stephen Michael Hladik, Howard L. Lester +1 more | 1995-08-22 |
| 5166953 | Technique for frequency-hopped spread spectrum communications | John Erik Hershey, Amer A. Hassan | 1992-11-24 |
| 5058200 | Transmitter location searching system | Chia-Chi Huang | 1991-10-15 |
| 4902979 | Homodyne down-converter with digital Hilbert transform filtering | — | 1990-02-20 |
| 4888557 | Digital subharmonic sampling down-converter | Gary J. Saulnier | 1989-12-19 |
| 4583231 | Method of, and apparatus for, frequency-hopped frequency-shift-keyed digital data communications | — | 1986-04-15 |
| 4535297 | Binary signal demodulator with comparative value decision circuitry | — | 1985-08-13 |
| 4475219 | Demodulator for frequency-shift-keyed binary data signals | — | 1984-10-02 |
| 4468792 | Method and apparatus for data transmission using chirped frequency-shift-keying modulation | Lewin T. Baker, Sanjay Bose, George W. Ellis | 1984-08-28 |
| 4352210 | Linear mixer with reduced spurious responses | — | 1982-09-28 |
| 4290022 | Digitally programmable phase shifter | — | 1981-09-15 |