Assignee
INDEP BROADCASTING AUTHORITY
41 granted patents·1,732 citations·filing 1973–1987
Top patents by PatentIndex Score
41 records- 0197US4736422AEncrypted broadcast television systemINDEP BROADCASTING AUTHORITY·Filed 1984·Granted Apr 5, 1988·388 cites·23 claims
- 0295US4802215ASecurity system for television signal encryptionINDEP BROADCASTING AUTHORITY·Filed 1984·Granted Jan 31, 1989·143 cites·21 claims
- 0394US4052719ATelevision receiver system having facility for storage and display of character information selected from digitally encoded broadcast transmissionsINDEP BROADCASTING AUTHORITY·Filed 1976·Granted Oct 4, 1977·237 cites·21 claims
- 0494US3996583ASystem for processing data signals for insertion in television signalsINDEP BROADCASTING AUTHORITY·Filed 1974·Granted Dec 7, 1976·197 cites·21 claims
- 0594US3961137ABiphase digital television systemsINDEP BROADCASTING AUTHORITY·Filed 1974·Granted Jun 1, 1976·122 cites·1 claims
- 0690US4636851ASignal coding for secure transmissionINDEP BROADCASTING AUTHORITY·Filed 1983·Granted Jan 13, 1987·106 cites·5 claims
- 0787US4611227ADecoder for digital information T.V. signalINDEP BROADCASTING AUTHORITY·Filed 1982·Granted Sep 9, 1986·124 cites·10 claims
- 0887US4277807ARecording digital signalsINDEP BROADCASTING AUTHORITY·Filed 1979·Granted Jul 7, 1981·38 cites·18 claims
- 0978US4675722AApparatus for deriving synchronization signals for component television video signal receptionINDEP BROADCASTING AUTHORITY·Filed 1983·Granted Jun 23, 1987·26 cites·18 claims
- 1078US4563710ADigital television tape recordingINDEP BROADCASTING AUTHORITY·Filed 1982·Granted Jan 7, 1986·27 cites·14 claims
- 1178US4280147ADigital television system and methodINDEP BROADCASTING AUTHORITY·Filed 1979·Granted Jul 21, 1981·22 cites·16 claims
- 1272US4658296ADynamic noise reduction for videoINDEP BROADCASTING AUTHORITY·Filed 1984·Granted Apr 14, 1987·21 cites·8 claims
- 1371US4730217AMovement detector for use in television signal processingINDEP BROADCASTING AUTHORITY·Filed 1984·Granted Mar 8, 1988·26 cites·6 claims
- 1470US4216460ATransmission and/or recording of digital signalsINDEP BROADCASTING AUTHORITY·Filed 1978·Granted Aug 5, 1980·16 cites·14 claims
- 1569US4700345ADownsampling and prefilter implementation in television systemsINDEP BROADCASTING AUTHORITY·Filed 1984·Granted Oct 13, 1987·17 cites·2 claims
- 1668US4051531ATelevision systemsINDEP BROADCASTING AUTHORITY·Filed 1973·Granted Sep 27, 1977·11 cites·2 claims
- 1765US4858005ASystem for encoding broadcast quality television signals to enable transmission as an embedded codeINDEP BROADCASTING AUTHORITY·Filed 1987·Granted Aug 15, 1989·23 cites·29 claims
- 1864US4392019ASurround sound systemINDEP BROADCASTING AUTHORITY·Filed 1980·Granted Jul 5, 1983·18 cites·10 claims
- 1964US4352129ADigital recording apparatusINDEP BROADCASTING AUTHORITY·Filed 1980·Granted Sep 28, 1982·12 cites·4 claims
- 2061US4748496ATransmission and reception of television signals to produce extended definition picturesINDEP BROADCASTING AUTHORITY·Filed 1984·Granted May 31, 1988·15 cites·4 claims
- 2160US4215367ATelevision systemsINDEP BROADCASTING AUTHORITY·Filed 1975·Granted Jul 29, 1980·12 cites·9 claims
- 2259US4199793ADigital recordingINDEP BROADCASTING AUTHORITY·Filed 1978·Granted Apr 22, 1980·9 cites·7 claims
- 2358US4276564ATelevision systemsINDEP BROADCASTING AUTHORITY·Filed 1978·Granted Jun 30, 1981·13 cites·4 claims
- 2458US4166271ADigital recognition circuitsINDEP BROADCASTING AUTHORITY·Filed 1977·Granted Aug 28, 1979·11 cites·3 claims
- 2552US4703358AApparatus for processing a television signal including a movement detectorINDEP BROADCASTING AUTHORITY·Filed 1985·Granted Oct 27, 1987·23 cites·19 claims
- 2651US4851837AMethod and apparatus for processing digital signals prior to recordingINDEP BROADCASTING AUTHORITY·Filed 1985·Granted Jul 25, 1989·8 cites·8 claims
- 2747US3939303ADigital video modulation apparatusINDEP BROADCASTING AUTHORITY·Filed 1973·Granted Feb 17, 1976·9 cites·6 claims
- 2844US4757531AEncryption of television signalsINDEP BROADCASTING AUTHORITY·Filed 1984·Granted Jul 12, 1988·8 cites·7 claims
- 2943US4271483ADelay circuitsINDEP BROADCASTING AUTHORITY·Filed 1978·Granted Jun 2, 1981·6 cites·2 claims
- 3039US4408226ATest apparatus for monitoring digital transmissionsINDEP BROADCASTING AUTHORITY·Filed 1981·Granted Oct 4, 1983·8 cites·6 claims
- 3139US4216496AApparatus for detecting and measuring interference in transmission signalsINDEP BROADCASTING AUTHORITY·Filed 1979·Granted Aug 5, 1980·11 cites·11 claims
- 3238US4204228ADigital testing apparatusINDEP BROADCASTING AUTHORITY·Filed 1978·Granted May 20, 1980·5 cites·41 claims
- 3335US4246569ADigital recognition circuitsINDEP BROADCASTING AUTHORITY·Filed 1979·Granted Jan 20, 1981·4 cites·5 claims
- 3431US4631487APhase lock loop television signal demodulatorINDEP BROADCASTING AUTHORITY·Filed 1985·Granted Dec 23, 1986·2 cites·5 claims
- 3529US4710815AApparatus for improving the linearity of TV transmitters using a klystronINDEP BROADCASTING AUTHORITY·Filed 1985·Granted Dec 1, 1987·6 cites·4 claims
- 3629US4700216ADemodulator for color television signals including a sub-carrierINDEP BROADCASTING AUTHORITY·Filed 1985·Granted Oct 13, 1987·0 cites·9 claims
- 3726US4724486AApparatus for deriving information signals for component television video signal receptionINDEP BROADCASTING AUTHORITY·Filed 1983·Granted Feb 9, 1988·3 cites·9 claims
- 3826US4661954AError protection of linearly coded digital signalsINDEP BROADCASTING AUTHORITY·Filed 1984·Granted Apr 28, 1987·3 cites·8 claims
- 3926US4654601ADemodulator for television signals with feedback to correlate frames or linesINDEP BROADCASTING AUTHORITY·Filed 1985·Granted Mar 31, 1987·1 cites·9 claims
- 4024US4639764AMAC vertical synchronizing signalsINDEP BROADCASTING AUTHORITY·Filed 1983·Granted Jan 27, 1987·1 cites·10 claims
- 4123US4697206AMethod and apparatus for enhancing vertical chrominance resolutionINDEP BROADCASTING AUTHORITY·Filed 1984·Granted Sep 29, 1987·0 cites·4 claims
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