Liebetreu; John M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Liebetreu; John M..The latest application filed is for "multipoint tdm data distribution system".
- Liebetreu; John M. - Scottsdale AZ
| Patent | Date |
|---|---|
| Multipoint TDM data distribution system Grant 6,735,734 - Liebetreu , et al. May 11, 2 | 2004-05-11 |
| Pragmatic trellis-coded modulation system and method therefor Grant 6,097,764 - McCallister , et al. August 1, 2 | 2000-08-01 |
| Data communication system and method therefor Grant 6,005,897 - McCallister , et al. December 21, 1 | 1999-12-21 |
| Trellis coded modulation communications using pilot bits to resolve phase ambiguities Grant 5,878,085 - McCallister , et al. March 2, 1 | 1999-03-02 |
| Demodulator with selectable coherent and differential data Grant 5,553,098 - Cochran , et al. September 3, 1 | 1996-09-03 |
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