Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4899383 | Apparatus and method for secure digital communication | Charles W. Einolf, Jr., Shan C. Sun, Russel W. Gonnam, Roger E. Ray, Karl C. Koch +1 more | 1990-02-06 |
| 4688260 | High-reliability fiber optic repeater | Joseph S. Malingowski | 1987-08-18 |
| 4662715 | Fiber optic network with reduced coupling losses | — | 1987-05-05 |
| 4654889 | Multi-star fiber optic network with improved access time | — | 1987-03-31 |
| 4641373 | T-connection fiber-optic repeater | — | 1987-02-03 |
| 4641371 | Multi-star fiber optic network | — | 1987-02-03 |
| 4318125 | Solid state digital audio scrambler system for teletransmission of audio intelligence through a television system | — | 1982-03-02 |
| 4295223 | Digital signal/noise ratio amplifier apparatus for a communication system | — | 1981-10-13 |
| 4266243 | Scrambling system for television sound signals | — | 1981-05-05 |