Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 13 - Code division multiplex systems
Patents for H04J 13 - Code division multiplex systems (21,510)
07/1988
07/14/1988DE3644174A1 Method for transmitting information via satellites
07/14/1988DE3644168A1 Method for data transmission via satellite by means of spread spectra and small ground stations
06/1988
06/28/1988US4754453 Digital radio transmission system with a connection-accompanying organization channel in the time-division multiplex frame
06/21/1988US4752939 Hidden preamble for frequency hopped synchronization
05/1988
05/31/1988US4748681 Integrated-services radio transmission system
05/31/1988US4748622 Satellite communication system
05/24/1988CA1237205A1 Synchronization system for use in direct sequence spread spectrum signal receiver
04/1988
04/27/1988EP0265178A2 Spread spectrum multiple access communication using satellite or terrestrial repeaters
04/13/1988EP0263687A2 Spread spectrum communications systems and transmitters and receivers therefor
04/12/1988CA1235186A1 Bidirectional digital signal communication system
03/1988
03/10/1988WO1988001816A1 Hidden preamble for frequency hopped synchronization
03/02/1988EP0257110A1 Digital cellular system
02/1988
02/02/1988CA1232380A1 Correlation detectors for use in direct sequence spread spectrum signal receiver
01/1988
01/26/1988CA1232019A1 Transmitting-receiving station for a system for transmitting data by frequency hopping
01/07/1988EP0250729A1 Apparatus for transmitting a data stream
12/1987
12/23/1987EP0250105A1 Radio location and apparatus
10/1987
10/28/1987EP0242367A1 Asynchronous communication system.
10/20/1987US4701905 Local area network system utiliziing a code division multiple access method
10/20/1987CA1228436A1 Code division multiplexer using direct sequence spread spectrum signal processing
10/07/1987EP0239639A1 Rapid frequency-hopping time synchronization.
09/1987
09/29/1987US4697260 Method of and arrangement for transmitting messages in a digital radio transmission system
09/01/1987US4691326 Spread-spectrum communication system
08/1987
08/18/1987US4688210 Method of and arrangement for synchronizing the receiver arrangements in a digital multiplex transmission system
08/18/1987US4688019 Signal transmission system
08/13/1987WO1987004883A1 Spread-spectrum multiplexed transmission system
06/1987
06/30/1987US4677617 Rapid frequency-hopping time synchronization
04/1987
04/23/1987WO1987002533A1 Asynchronous communication system
04/09/1987WO1987002206A1 Rapid frequency-hopping time synchronization
04/08/1987EP0216974A1 Code division multiplexer using direct sequence spread spectrum signal processing.
03/1987
03/24/1987US4653076 Timing signal correction system for use in direct sequence spread signal receiver
03/17/1987US4651327 Decoder for spectrum diffusion signals
02/1987
02/25/1987EP0211460A2 Digital radio transmission method
02/17/1987US4644560 Intranetwork code division multiple access communication system
02/17/1987US4644523 System for improving signal-to-noise ratio in a direct sequence spread spectrum signal receiver
02/04/1987EP0210700A2 Digital radio transmission system with central, communication-associated organization channel in the time multiplex frame
01/1987
01/15/1987WO1987000370A1 A serial data highway system
01/06/1987US4635274 Bidirectional digital signal communication system
01/06/1987US4635221 Frequency multiplexed convolver communication system
12/1986
12/17/1986EP0201126A2 Integrated services radio transmission system
11/1986
11/18/1986CA1214215A1 Frequency-hopping radio communications system
11/04/1986CA1213644A1 Fixed station of a radiocommunications system with frequency jumps and two-way transmitters
10/1986
10/15/1986CN85102959A Code division multiplexer using direct sequence spread spectrum signal processing
10/08/1986EP0196723A2 Method and circuit for the synchronization of receiving devices in a digital multiplex communication system
08/1986
08/13/1986CN85109677A Method of and arrangement for transmitting messages in a digital radio transmission system
08/12/1986US4606040 Transmitting-receiving station for a system for transmitting data by frequency hopping
08/12/1986US4606039 Spread spectrum coding method and apparatus
07/1986
07/30/1986EP0188836A2 Method and device for information transmission in a digital radio transmission system
07/30/1986CN86101271A 无线电话系统 Wireless telephone system
07/15/1986US4601047 Code division multiplexer using direct sequence spread spectrum signal processing
07/09/1986EP0186884A2 Spread spectrum communication system
07/08/1986US4599733 Multilevel noise code mate pair generation and utilization of such codes
06/1986
06/04/1986EP0182843A1 Data transmission method and apparatus
04/1986
04/16/1986EP0177963A2 Decoder for spectrum diffusion signals
03/1986
03/25/1986US4578816 Method of synchronization of transmitter-receiver stations of a frequency-jumping network and a station for the practical application of said method
02/1986
02/25/1986US4573209 Fixed station of a radiocommunications system with frequency jumps and two-way transmitters
02/18/1986CA1200845A1 Impulse autocorrelation function communications system
02/04/1986US4568915 Code generator for multilevel interleaved multiplexed noise codes
02/04/1986US4568914 Expanded multilevel noise code generator employing butting
01/1986
01/28/1986US4567588 Synchronization system for use in direct sequence spread spectrum signal receiver
01/07/1986US4563774 Address coded communication system
12/1985
12/24/1985US4561089 Correlation detectors for use in direct sequence spread spectrum signal receiver
12/19/1985WO1985005745A1 Data transmission method and apparatus
11/1985
11/19/1985US4554668 Frequency-hopping radio communications system
10/1985
10/30/1985EP0159720A2 Bidirectional digital signal communication system
10/22/1985US4549303 Multichannel time division multiplexed trunk transmission link
10/09/1985EP0157692A2 Code division multiplexer using direct sequence spread spectrum signal processing
10/08/1985US4546326 Fast automatic gain control arrangement
09/1985
09/25/1985EP0155348A2 Method for signal transmission in a length or angle measurement device and device for carrying out the method
09/17/1985US4542515 Multilevel mate pair code compressor for codes expanded by the process of butting
09/17/1985CA1193672A1 Orthogonal code division multiple access communications system
09/17/1985CA1193671A1 Orthogonal cdma system utilizing direct sequence pseudo noise codes
08/1985
08/27/1985CA1192647A1 Multiplexed noise coded switching system
04/1985
04/16/1985US4512024 Impulse autocorrelation function communications system
04/10/1985EP0136757A2 Transceiver station for a frequency hopping information transmission system
02/1985
02/13/1985EP0133107A1 Apparatus for coding and decoding a broad-band transmission
01/1985
01/16/1985EP0131458A1 Spread spectrum system
01/15/1985US4494228 Orthogonal code division multiple access communications systems
10/1984
10/02/1984US4475186 Multiplexed noise coded switching system
09/1984
09/11/1984US4471342 Pulse compressor for multiplexed noise codes
07/1984
07/17/1984US4460992 Orthogonal CDMA system utilizing direct sequence pseudo noise codes
07/04/1984EP0112666A2 Priority coding apparatus
06/1984
06/19/1984US4455662 Noise code generator and pulse compression communications system
04/1984
04/10/1984CA1165476A1 Modem to be coupled to a directional transmission line of an ss multiplex communication network
01/1984
01/10/1984US4425642 Simultaneous transmission of two information signals within a band-limited communications channel
01/04/1984EP0097541A1 Fixed station of a frequency hopping radiocommunication system comprising transmitters with interchangeable assignment
12/1983
12/07/1983EP0095959A1 Frequency hopping radiocommunication system
09/1983
09/13/1983CA1153800A1 Bi-orthogonal pcm communications system employing multiplexed noise codes
08/1983
08/24/1983EP0086514A1 High speed automatic gain control circuit
07/1983
07/21/1983WO1983002533A1 Simultaneous transmission of two information signals within a band-limited communications channel
07/05/1983US4392220 Modem to be coupled to a directional transmission line of an SS multiplex communication network
06/1983
06/22/1983EP0082054A1 Method of synchronising transceiver sets of a frequency-hopping network, and set for carrying out this method
05/1983
05/10/1983US4383323 Spread spectrum FH-MFSK transmitter and receiver
11/1982
11/17/1982EP0064686A1 Message transmission system
11/09/1982US4358844 Method of and means for spread-spectrum transmission
10/1982
10/19/1982US4355399 Adaptive spread spectrum FH-MFSK transmitter and receiver
09/1982
09/14/1982CA1131816A1 Digital ring control system for digital multiplexer
07/1982
07/13/1982CA1127781A1 Orthogonal spread spectrum time division multiple accessing mobile subscriber access system
06/1982
06/15/1982US4335463 Simultaneous integral multi-access transmission system on transmission lines by optical fibres
03/1982
03/16/1982US4320513 Electric circuit for the production of a number of different codes
02/1982
02/23/1982US4317204 Spread spectrum conferencing communication system
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