Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7724309 | Multichannel quadrature modulation | — | 2010-05-25 |
| 7292286 | Multichannel quadrature modulation | — | 2007-11-06 |
| 6934731 | Rational frequency synthesizers employing digital commutators | — | 2005-08-23 |
| 6731757 | Multichannel digital signal generation method and apparatus | — | 2004-05-04 |
| 6724178 | Measuring composite distortion using a coherent multicarrier signal generator | — | 2004-04-20 |
| 6580330 | Injection locked oscillator automatic frequency centering method and apparatus | Branislav Petrovic | 2003-06-17 |
| 6175630 | Method and apparatus for level and phase control of a plurality of RF signals | — | 2001-01-16 |
| 6148320 | Multichannel digital signal generation method and apparatus | — | 2000-11-14 |
| 6121847 | Injection locked oscillator automatic frequency centering method and apparatus | Branislav Petrovic | 2000-09-19 |
| 5864621 | Broadband television scrambling and descrambling system | — | 1999-01-26 |
| 5754650 | Simultaneous multichannel television access control system and method | — | 1998-05-19 |
| 5430799 | Multichannel television signal scrambling and descrambling system and method | — | 1995-07-04 |
| 5249294 | Determination of time of execution of predetermined data processing routing in relation to occurrence of prior externally observable event | Roy A. Griffin, III, James Esserman, Steven E. Anderson, Steven R. Hart | 1993-09-28 |
| 5125100 | Optimal signal synthesis for distortion cancelling multicarrier systems | — | 1992-06-23 |
| 5091936 | System for communicating television signals or a plurality of digital audio signals in a standard television line allocation | Paul Moroney, W. Allen Shumate | 1992-02-25 |
| 5068729 | Compatible extended-definition television | Edward A. Krause | 1991-11-26 |
| 5010571 | Metering retrieval of encrypted data stored in customer data retrieval terminal | — | 1991-04-23 |
| 4998287 | Determination of sequential positions of video fields derived from film | Edward A. Krause | 1991-03-05 |
| 4943847 | Extended definition television | — | 1990-07-24 |
| 4908859 | Receiver access interface to service components in television channel | Christopher J. Bennett, James Hobza, Gordon Kent Walker | 1990-03-13 |
| 4809274 | Digital audio companding and error conditioning | Gordon Kent Walker, Paul Moroney, Karl E. Moerder | 1989-02-28 |
| 4736420 | Video scrambling by segmenting video information lines | Gordon Kent Walker, Paul Moroney | 1988-04-05 |
| 4719505 | Color burst regeneration | — | 1988-01-12 |