Assignee
LUMA TELECOM INC
US·6 granted patents·401 citations·filing 1985–1988
Top patents by PatentIndex Score
6 records- 0190US4932047AConversational video phoneLUMA TELECOM INC·Filed 1987·Granted Jun 5, 1990·141 cites·13 claims
- 0289US4943994AStill picture picturephone communications systemLUMA TELECOM INC·Filed 1988·Granted Jul 24, 1990·79 cites·8 claims
- 0389US4715059AConversational video phoneLUMA TELECOM INC·Filed 1985·Granted Dec 22, 1987·127 cites·23 claims
- 0476US4918718AQuadrature amplitude modulation with line synchronization pulse for video telephoneLUMA TELECOM INC·Filed 1988·Granted Apr 17, 1990·30 cites·11 claims
- 0560US4739413AVideo-optimized modulator-demodulator with adjacent modulating amplitudes matched to adjacent pixel gray valuesLUMA TELECOM INC·Filed 1987·Granted Apr 19, 1988·16 cites·9 claims
- 0645US4926245AQuadrature amplitude modulation preserving one channel zero crossing for video telephoneLUMA TELECOM INC·Filed 1988·Granted May 15, 1990·8 cites·10 claims
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