French State, represented by the Minister of Post, Telecommunications and Space (Centre National d'Etudes des Telecommunications)
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Oct 25, 1994 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 665 Total Citation Count
- Nov 09, 1984 Earliest Filing
- 37 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
5343521 Device for processing echo, particularly acoustic echo in a telephone lineApr 16, 91Aug 30, 94[H04M]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5311308 Method and device for encoding-decoding a narrow band high definition digital television signalExpiredMar 19, 91May 10, 94[H04N]
5245423 Movement estimation method and system for high definition digital television framesExpiredMar 19, 91Sep 14, 93[H04N]
5235452 Process and switching matrix apparatus for optical transmission of signals by self-heterodyningExpiredMar 09, 92Aug 10, 93[H04B, H04J]
5214648 Complementary communication system in the no-connection mode for asynchronous time-division networkExpiredJun 25, 90May 25, 93[H04J]
5208830 Process for searching for synchronization on reception of a spread spectrum modulated signalExpiredNov 09, 90May 04, 93[H04K]
5184145 Dismountable and air-transportable antenna for two-way telecommunications with a satelliteExpiredJul 05, 90Feb 02, 93[H01Q]
5164719 Radio system for data transmission with passive terminal stationExpiredAug 06, 90Nov 17, 92[H04B]
5160992 Device for the conversion of an infrared radiation into another radiation of energy greater than that of this infrared radiationExpiredOct 31, 90Nov 03, 92[H01L]
5151698 Method for the coding of a digital signal, coder and decoder to implement this method, regeneration method and corresponding regenerator utilizing pulse position modulationExpiredSep 18, 90Sep 29, 92[H03M]
5130843 Acousto-optical device using a superlattice as the interaction meduimExpiredJun 14, 90Jul 14, 92[H01L, G02F]
5128997 Wired microcircuit card and a method for transactions between a corresponding wired microcircuit card and a terminalExpiredJul 17, 90Jul 07, 92[H04K]
5125049 Multipurpose component with integrated optics and distribution network with optical amplificationExpiredOct 05, 90Jun 23, 92[G02B]
5118954 Method and device for the geometrical characterization of transparent tubesExpiredAug 24, 90Jun 02, 92[G01N]
5089818 Method of transmitting or storing sound signals in digital form through predictive and adaptive coding and installation thereforeExpiredMay 09, 90Feb 18, 92[H03M]
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