Assignee
TELEDIFFUSION FSE
FR·80 granted patents·3,509 citations·filing 1975–2003
Top patents by PatentIndex Score
80 records- 0199US4337483AText video-transmission system provided with means for controlling access to the informationTELEDIFFUSION FSE·Filed 1980·Granted Jun 29, 1982·365 cites·11 claims
- 0299US4323921ASystem for transmitting information provided with means for controlling access to the information transmittedTELEDIFFUSION FSE·Filed 1980·Granted Apr 6, 1982·577 cites·5 claims
- 0394US4420833AUnidirectional data transmission systemTELEDIFFUSION FSE·Filed 1980·Granted Dec 13, 1983·126 cites·2 claims
- 0494US4354201ATelevision system with access controlTELEDIFFUSION FSE·Filed 1980·Granted Oct 12, 1982·161 cites·5 claims
- 0594US4115662AOne way data transmission systemTELEDIFFUSION FSE·Filed 1977·Granted Sep 19, 1978·150 cites·2 claims
- 0692US4308558APage selection device for videotext systemTELEDIFFUSION FSE·Filed 1980·Granted Dec 29, 1981·118 cites·1 claims
- 0792US4290062ASystem for digital transmission and text displayTELEDIFFUSION FSE·Filed 1979·Granted Sep 15, 1981·129 cites·13 claims
- 0892US4213124ASystem for digitally transmitting and displaying texts on television screenTELEDIFFUSION FSE·Filed 1977·Granted Jul 15, 1980·140 cites·4 claims
- 0991US4426684AScratch pad memory for cassette of magnetic tape recordingTELEDIFFUSION FSE·Filed 1980·Granted Jan 17, 1984·52 cites·7 claims
- 1090US4368486ATelevision system using a marking code superimposed on the pictureTELEDIFFUSION FSE·Filed 1981·Granted Jan 11, 1983·135 cites·6 claims
- 1189US4688218AMultiplex channels for continuous flow for numerical signalTELEDIFFUSION FSE·Filed 1984·Granted Aug 18, 1987·89 cites·9 claims
- 1288US4361853ASystem for reducing the visibility of the noise in television picturesTELEDIFFUSION FSE·Filed 1979·Granted Nov 30, 1982·69 cites·5 claims
- 1386US4580158AVideo signal combining systemTELEDIFFUSION FSE·Filed 1983·Granted Apr 1, 1986·53 cites·10 claims
- 1485US4352011ASubscription card for a videotex receiverTELEDIFFUSION FSE·Filed 1980·Granted Sep 28, 1982·117 cites·1 claims
- 1583US5208857AMethod and device for scrambling-unscrambling digital image dataTELEDIFFUSION FSE·Filed 1991·Granted May 4, 1993·78 cites·22 claims
- 1683US4424572ADevice for the digital transmission and display of graphics and/or of characters on a screenTELEDIFFUSION FSE·Filed 1980·Granted Jan 3, 1984·54 cites·9 claims
- 1782US7146615B1System for fast development of interactive applicationsTELEDIFFUSION FSE·Filed 2000·Granted Dec 5, 2006·87 cites·18 claims
- 1882US7043684B2Method for the synchronization of two digital data flows with identical contentTELEDIFFUSION FSE·Filed 2003·Granted May 9, 2006·22 cites·26 claims
- 1977US4302628AAnalog signal encrypting and decrypting systemTELEDIFFUSION FSE·Filed 1980·Granted Nov 24, 1981·48 cites·5 claims
- 2076US4434498AProcess and apparatus for synchronization of digital signalsTELEDIFFUSION FSE·Filed 1981·Granted Feb 28, 1984·29 cites·9 claims
- 2173US7003169B1Variable transformation hierarchical image codingTELEDIFFUSION FSE·Filed 2000·Granted Feb 21, 2006·15 cites·19 claims
- 2273US4292649AComposite video signal combining systemTELEDIFFUSION FSE·Filed 1980·Granted Sep 29, 1981·25 cites·13 claims
- 2372US7023265B1Equalizing method in receivers using a combination of multiple carrier and code division multiple access modulating techniquesTELEDIFFUSION FSE·Filed 2000·Granted Apr 4, 2006·27 cites·20 claims
- 2471US6963605B2Method for estimating the motion between two digital images with management of mesh overturning and corresponding coding methodTELEDIFFUSION FSE·Filed 2000·Granted Nov 8, 2005·12 cites·34 claims
- 2571US6151578ASystem for broadcast of data in an audio signal by substitution of imperceptible audio band with dataTELEDIFFUSION FSE·Filed 1996·Granted Nov 21, 2000·87 cites·8 claims
- 2671US5339166AMotion-dependent image classification for editing purposesTELEDIFFUSION FSE·Filed 1992·Granted Aug 16, 1994·25 cites·17 claims
- 2768US6885702B1Method for spatial synchronization of a digitally coded video image and/or for identification of the syntax of a video sequenceTELEDIFFUSION FSE·Filed 2000·Granted Apr 26, 2005·11 cites·21 claims
- 2867US6880115B2Surveillance of quality of service in a digital television linkTELEDIFFUSION FSE·Filed 2002·Granted Apr 12, 2005·15 cites·6 claims
- 2967US6366314B1Method and system for measuring the quality of digital television signalsTELEDIFFUSION FSE·Filed 1998·Granted Apr 2, 2002·42 cites·11 claims
- 3067US4989087AMulti-predictive method to estimate the motion of the points of an electronic pictureTELEDIFFUSION FSE·Filed 1988·Granted Jan 29, 1991·46 cites·13 claims
- 3166US4713695ASystem for superimposing plural television pictures with extent of superimposition based upon a linear combination of the picture signalsTELEDIFFUSION FSE·Filed 1986·Granted Dec 15, 1987·23 cites·22 claims
- 3262US4431865ADigital signal enciphering and deciphering apparatus and systemTELEDIFFUSION FSE·Filed 1980·Granted Feb 14, 1984·23 cites·16 claims
- 3361US8036765B2Method for qualitative evaluation of a digital audio signalTELEDIFFUSION FSE·Filed 2003·Granted Oct 11, 2011·8 cites·5 claims
- 3461US6920178B1Method switching the video component(s) of a first digital, audio-visual program onto the video components of a second audio-visual digital, video-audio program to compensate their phase-shiftTELEDIFFUSION FSE·Filed 1999·Granted Jul 19, 2005·32 cites·17 claims
- 3561US4744086AProcess for the transmission in blocks of digital information words with error correction capabilityTELEDIFFUSION FSE·Filed 1986·Granted May 10, 1988·15 cites·15 claims
- 3660US6931155B1Selective mesh refinementTELEDIFFUSION FSE·Filed 1999·Granted Aug 16, 2005·31 cites·8 claims
- 3760US5283591AFixed-reflector antenna for plural telecommunication beamsTELEDIFFUSION FSE·Filed 1992·Granted Feb 1, 1994·32 cites·18 claims
- 3860US4352094ADevice for acquiring and averaging samples of a noisy periodic signalTELEDIFFUSION FSE·Filed 1981·Granted Sep 28, 1982·24 cites·9 claims
- 3959US7107251B1Method of evaluating the quality of audio-visual sequencesTELEDIFFUSION FSE·Filed 2000·Granted Sep 12, 2006·8 cites·6 claims
- 4057US4696015AEcho correction especially for television broadcast systemsTELEDIFFUSION FSE·Filed 1984·Granted Sep 22, 1987·21 cites·9 claims
- 4155US6618077B1Method for controlling a digital television metrology equipmentTELEDIFFUSION FSE·Filed 1998·Granted Sep 9, 2003·23 cites·12 claims
- 4255US4583047AReception circuit for a wave modulated at one time in frequency by an analog signal and at another time in phase by a digital signalTELEDIFFUSION FSE·Filed 1984·Granted Apr 15, 1986·13 cites·10 claims
- 4354US4177876APrefabricated element to form a double sound insulation and absorption wall of a dwellingTELEDIFFUSION FSE·Filed 1977·Granted Dec 11, 1979·23 cites·4 claims
- 4452US5229998AMethod of reducing the low-frequency component of jitter in a digital data transmission systemTELEDIFFUSION FSE·Filed 1991·Granted Jul 20, 1993·20 cites·9 claims
- 4551US7561601B2Method for synchronizing digital signalsTELEDIFFUSION FSE·Filed 2001·Granted Jul 14, 2009·2 cites·14 claims
- 4651US4667334ASystem for broadcasting data packets originating from different sourcesTELEDIFFUSION FSE·Filed 1985·Granted May 19, 1987·28 cites·15 claims
- 4749US6549757B1Method and system for assessing, at reception level, the quality of a digital signal, such as a digital audio/video signalTELEDIFFUSION FSE·Filed 1998·Granted Apr 15, 2003·23 cites·16 claims
- 4849US4321596AMethod of aligning videotex characters and device for carrying out such a methodTELEDIFFUSION FSE·Filed 1980·Granted Mar 23, 1982·13 cites·4 claims
- 4948US6911982B1Data signal for modifying a graphic scene, corresponding method and deviceTELEDIFFUSION FSE·Filed 1998·Granted Jun 28, 2005·13 cites·22 claims
- 5047US7319727B2Method for diversity reception of a multicarrier signal, receiver and corresponding systemTELEDIFFUSION FSE·Filed 2002·Granted Jan 15, 2008·2 cites·26 claims
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