Assignee
MATRA COMMUNICATION
FR41 patents
Top patents by PatentIndex Score
US5509028AApr 16, 1996
Radio transmission method using repeater stations with spectrum reversal
MATRA COMMUNICATION135 citations97
US5448600ASep 5, 1995
Method for selecting propagation paths retained for receiving messages transmitted by CDMA radiocommunication
MATRA COMMUNICATION133 citations97
US5901349AMay 4, 1999
Mixer device with image frequency rejection
MATRA COMMUNICATION182 citations96
USD408397SApr 20, 1999
Telephone
MATRA COMMUNICATION62 citations95
US5128925AJul 7, 1992
Process for the pseudo-synchronization of a time multiplexing communication network and uses thereof
MATRA COMMUNICATION112 citations94
US5905760AMay 18, 1999
Method of correcting nonlinearities of an amplifier, and radio transmitter employing a method of this type
MATRA COMMUNICATION82 citations93
US5903611AMay 11, 1999
Method of correcting nonlinearities of an amplifier, and radio transmitter employing a method of this type
MATRA COMMUNICATION89 citations93
US5889857AMar 30, 1999
Acoustical echo canceller with sub-band filtering
MATRA COMMUNICATION71 citations93
US5544155AAug 6, 1996
Method of synchronization for code division multiple access radiotelephone communications
MATRA COMMUNICATION59 citations93
USD377489SJan 21, 1997
Portable radiotelephone
MATRA COMMUNICATION27 citations92
US5544167AAug 6, 1996
Transmission method for CDMA radiotelephone communications, and apparatuses for implementing such method
MATRA COMMUNICATION47 citations92
US5398247AMar 14, 1995
TDMA radio-communication method
MATRA COMMUNICATION53 citations92
US5280479AJan 18, 1994
Device for insertion of digital packets in a transmission channel
MATRA COMMUNICATION113 citations92
US5974377AOct 26, 1999
Analysis-by-synthesis speech coding method with open-loop and closed-loop search of a long-term prediction delay
MATRA COMMUNICATION49 citations90
US5899968AMay 4, 1999
Speech coding method using synthesis analysis using iterative calculation of excitation weights
MATRA COMMUNICATION23 citations90
US5818866AOct 6, 1998
Method of selecting propagation delays retained for receiving messages transmitted by spread spectrum radio communication
MATRA COMMUNICATION59 citations90
USD324682SMar 17, 1992
Telephone set
MATRA COMMUNICATION26 citations90
US6108413AAug 22, 2000
Echo cancellation method and echo canceller implementing such a process
MATRA COMMUNICATION30 citations89
US5790942AAug 4, 1998
Frequency modulation radio transmission device
MATRA COMMUNICATION24 citations89
US5642465AJun 24, 1997
Linear prediction speech coding method using spectral energy for quantization mode selection
MATRA COMMUNICATION30 citations88
US6052576AApr 18, 2000
Radiocommunications equipment with a security calls mode, and extension unit forming part of such equipment
MATRA COMMUNICATION63 citations85
US5850403ADec 15, 1998
Process of selectively protecting information bits against transmission errors
MATRA COMMUNICATION25 citations84
USD311918SNov 6, 1990
Telephone set
MATRA COMMUNICATION17 citations81
USD423492SApr 25, 2000
Portable radiotelephone
MATRA COMMUNICATION8 citations73
US5640125AJun 17, 1997
Digital PSK-type demodulator having clock recovery before carrier recovery
MATRA COMMUNICATION9 citations73
USD338874SAug 31, 1993
Cabinet for PBX circuits
MATRA COMMUNICATION12 citations73
USD331759SDec 15, 1992
Telephone set
MATRA COMMUNICATION9 citations73
USD330377SOct 20, 1992
Handset telephone
MATRA COMMUNICATION8 citations73
USD292403SOct 20, 1987
Combination telephone and computer terminal for telecommunication system
MATRA COMMUNICATION8 citations73
US5751188AMay 12, 1998
FM demodulator using a switched capacitor phase shifter
MATRA COMMUNICATION16 citations71
US5917861AJun 29, 1999
Method of digital demodulation
MATRA COMMUNICATION7 citations68
US5412724AMay 2, 1995
Method of making up a digital multiplex, and apparatus implementing said method
MATRA COMMUNICATION8 citations68
US5187807AFeb 16, 1993
Base station for a radiotelephone communication system with switchig members for connecting link lines to transmitter members
MATRA COMMUNICATION10 citations65
US5448286ASep 5, 1995
Process and terminal for video telephony permitting acceptance, and possibly calling, by a telephone set
MATRA COMMUNICATION14 citations64
US5692103ANov 25, 1997
Method of speech recognition with learning
MATRA COMMUNICATION6 citations61
US5347315ASep 13, 1994
Modular encoder for generating a digital multiplex signal and decoder for processing such a signal
MATRA COMMUNICATION6 citations59
US4747073AMay 24, 1988
Terminal for communication with a remote data processing system
MATRA COMMUNICATION13 citations59
US5644679AJul 1, 1997
Method and device for preprocessing an acoustic signal upstream of a speech coder
MATRA COMMUNICATION3 citations58
USD331758SDec 15, 1992
Telephone set
MATRA COMMUNICATION4 citations58
US5323455AJun 21, 1994
Ringer circuit, particularly for a telephone set
MATRA COMMUNICATION3 citations56
US5059817AOct 22, 1991
Narrow pulse generator
MATRA COMMUNICATION4 citations46