Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6198822 | Enhanced scrambling of slowly changing video signals | John F. Doyle, Mitchell Askenas, Ted Hartson | 2001-03-06 |
| 6055315 | Distributed scrambling method and system | John F. Doyle, Timothy Dunn | 2000-04-25 |
| 5526034 | Interactive home information system with signal assignment | W. Leo Hoarty, Joshua W. Soske, Gary M. Lauder, Delmer D. Fisher, John Roy North | 1996-06-11 |
| 5442700 | Scrambling method | Delmer D. Fisher | 1995-08-15 |
| 4622681 | Apparatus for transmitting digital data | Thomas Scarinci | 1986-11-11 |