ETAT FRANCAIS (CENTRE NATIONAL D'ETUDES DES TELECOMMUNICATIONS)

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 196
 
 
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 1241

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5365270 Method and device for throughput compression for a videophone cameraJun 01, 92Nov 15, 94[H04N]
5185800 Bit allocation device for transformed digital audio broadcasting signals with adaptive quantization based on psychoauditive criterionJun 24, 92Feb 09, 93[G10L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5245423 Movement estimation method and system for high definition digital television framesExpiredMar 19, 91Sep 14, 93[H04N]
5235415 Device for the intelligible consultation of data relating to the fees programs of a subscription television and/or radio serviceExpiredDec 19, 90Aug 10, 93[H04N]
5168237 Test device for a bus with two pairs of conductorsExpiredOct 18, 90Dec 01, 92[G01R]
5161001 Method for sub-sampling in the axis of motion of a sequence of electronic picturesExpiredDec 09, 88Nov 03, 92[H04N]
5159609 Data receiving device with delayed equalization and retroactive time-pulse recoveryExpiredJul 18, 90Oct 27, 92[H03H]
5130793 Reconfigurable multiple-point wired in-house network for simultaneous and/or alternative distribution of several types of signals, notably baseband images, and method for the configuration of a system such as thisExpiredJul 20, 89Jul 14, 92[H04N]
5128997 Wired microcircuit card and a method for transactions between a corresponding wired microcircuit card and a terminalExpiredJul 17, 90Jul 07, 92[H04K]
5077542 Transmission system with suppressed carrier signal amplitude modulation preserving the polarity of the transmitted signal, and corresponding transmitter and receiverExpiredDec 07, 90Dec 31, 91[H04N, H03D, H03C]
5053675 Electroluminescent display screen with a memory and a particular configuration of electrodesExpiredApr 11, 90Oct 01, 91[H05B]
5053679 Photoconductive-electroluminescent memory effect polychromatic displayExpiredFeb 23, 90Oct 01, 91[H01J]
5043291 Method of manufacturing a broadband high emission power semiconductor laser from a BRS type buried stripe structure, and resulting laserExpiredSep 07, 89Aug 27, 91[H01L]
5041908 Throughput regulation method for data for assistance in the reconstruction of sub-sampled moving electronic imagesExpiredJun 21, 89Aug 20, 91[H04N]
5031038 Process and device for the compression of image data by mathematical transformation effected at low cost, particularly for the transmission at a reduced rate of sequences of imagesExpiredApr 18, 90Jul 09, 91[H04N]
5028118 Device for the control and adjustment of the modal alignment of optical fibersExpiredFeb 14, 90Jul 02, 91[G02B]
5015597 Process for the production of an inverted structure, active matrix display screenExpiredAug 24, 90May 14, 91[H01L, G03C, G02F]
5008746 High definition television signal processing including subsampling and motion compensationExpiredJun 16, 89Apr 16, 91[A04N]
4986627 Method for connecting optical fibres without Fresnel reflection and system thus detained, variable optical attenuator and system using this attenuator to measure the effect of the reflection coeficient on an optical lineExpiredJun 08, 89Jan 22, 91[G02B]
4984678 Device for the separation and alignment of objects and a sorting installation for using sameExpiredFeb 13, 90Jan 15, 91[B65G]
4981612 Optical element having non-linear optical propertiesExpiredMay 05, 88Jan 01, 91[C07C, C09B, G11B, G02F]
4980764 Method for the encoding of data for assistance in the reconstruction of a sub-sampled moving electronic imageExpiredJun 21, 89Dec 25, 90[H04N]

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