Alcatel Thomson Faisceaux Hertziens

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5113368 Circuit for delaying at least one high bit rate binary data trainExpiredNov 17, 88May 12, 92[G06F]
5023821 Digital filter operating at intermediate frequencyExpiredMar 28, 88Jun 11, 91[H04B, H03H]
4929962 Feed horn for a telecommunications antennaExpiredDec 09, 87May 29, 90[H01Q]
4926142 Oscillator having a dielectric resonator, and electronic frequency tuning using a varactor, in particular in the 22 GHz rangeExpiredApr 13, 88May 15, 90[H03B]
4862111 Microwave oscillator having a dielectric resonator, in particular for the 22 GHz rangeExpiredApr 13, 88Aug 29, 89[H03B]
4855691 Amplitude stabilizer for use in microwave discriminatorExpiredAug 07, 87Aug 08, 89[H03L, H03G]
4853657 Orthogonal-polarization duplex send-receive microwave headExpiredJun 16, 88Aug 01, 89[H01P]
4849722 Adjustable band suspended substrate filterExpiredSep 25, 87Jul 18, 89[H01P]
4847578 Method and device for detecting false locks between a reference signal and a signal to be demodulated by coherent digital demodulationExpiredSep 14, 88Jul 11, 89[H03K, H03D]
4837583 Device for adjusting the polarization of an antenna and a method for the practical application of said deviceExpiredFeb 18, 87Jun 06, 89[H01Q]
4827490 Method of synchronizing two binary trainsExpiredJun 18, 87May 02, 89[H04L]
4825218 Reflector antenna for telecommunicationsExpiredApr 08, 87Apr 25, 89[H01Q]
4819004 Printed circuit array antennaExpiredMar 26, 87Apr 04, 89[H01Q]
4814718 Microwave discriminator and demodulator/receiver using the sameExpiredAug 07, 87Mar 21, 89[H03D]
4806890 Tuneable microwave filterExpiredFeb 10, 88Feb 21, 89[H01P]
4800349 E-plane type wide band composite filterExpiredSep 17, 87Jan 24, 89[H01P]
4768006 Electrical and mechanical coupling for coupling a microwave case both to its source and to its support, and a method of using such a couplingExpiredMar 30, 87Aug 30, 88[H01P]
4757502 Automatic gain control method and circuit for a time division multiple access receiverExpiredJan 21, 86Jul 12, 88[H04J]
4746883 Evanescent mode microwave bandpass filter with a rotatable crank shape coupling antennaExpiredJun 13, 86May 24, 88[H01P]
4744096 Clock recovery circuitExpiredJan 20, 87May 10, 88[H03D]

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