Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 1 - Frequency-division multiplex systems
Patents for H04J 1 - Frequency-division multiplex systems (15,293)
12/1996
12/03/1996US5581555 Reverse path allocation and contention resolution scheme for a broadband communications system
11/1996
11/28/1996WO1996037981A1 Digital communications on overlapping channels
11/27/1996EP0744103A1 Communication system resource allocation method
11/27/1996CN1136872A Broadband communication system
11/27/1996CN1136871A Communication system for communicating with a plurality of selective call receivers and method thereof
11/20/1996EP0743768A1 Device and method for multiplexing signal
11/19/1996US5577049 Multiplexed signal transmission system
11/19/1996US5576881 Multi-frequency optical signal source having reduced distortion and crosstalk
11/14/1996WO1996036132A1 Method and equipment for multirate coding and detection in a multiple access mobile communication system
11/12/1996US5574966 Wireless base station architecture
11/12/1996US5574450 Synchronization adder circuit
11/07/1996WO1996035271A1 Method and system for management of frequency spectrum among multiple applications on a shared medium
11/06/1996EP0740892A1 Interconnected passive optical networks
10/1996
10/31/1996WO1996034459A2 An optical receiver, a tuner, and an optical network
10/31/1996WO1996034349A1 An improved periodic wireless data broadcast
10/29/1996US5570392 Phase generator
10/29/1996US5570350 CDMA cellular communications with multicarrier signal processing
10/22/1996US5568303 Unit for generating signal pulses, transmitter comprising such a unit, and multiplex transmission system comprising such a transmitter
10/15/1996US5566164 Practical means for digital generation and combination of a multiplicity of CDMA/FDMA signals
10/09/1996EP0736986A1 Data reception apparatus, data transmission apparatus and method thereof which use reference data inserted into a transmission signal in order to estimate the transmission channel quality
10/08/1996US5564001 Communications system
10/08/1996US5563930 Common channeling signaling network maintenance and testing
10/08/1996US5563908 Modulator and demodulator apparatus
10/02/1996EP0735673A1 Digital filter
09/1996
09/24/1996US5559834 Method of reducing crosstalk in processing of acoustic or optical signals
09/24/1996US5559792 Sound modification for use in simultaneous voice and data communications
09/17/1996US5557617 Frequency division switching using RF buss
09/11/1996CN1130831A Demodulation control system and receiver capable of quickly acquiring desired carrier wave
09/11/1996CN1130827A 通信系统 Communications systems
09/10/1996US5555257 Cellular/satellite communications system with improved frequency re-use
08/1996
08/29/1996WO1996026578A1 Joint demodulation using spatial maximum likelihood
08/29/1996CA2213518A1 Joint demodulation using spatial maximum likelihood
08/28/1996EP0729248A2 Multichannel optical fiber communications
08/28/1996EP0728621A2 Vehicle communications network with improved current sourcing
08/28/1996CN1129870A Improved subcarrier multiple access passive optical network
08/27/1996US5550824 RF signal distribution scheme
08/21/1996EP0727884A2 Circuit arrangement for optical frequency conversion
08/17/1996CA2169531A1 Circuit arrangement for optical frequency conversion
08/14/1996EP0726000A1 Wideband fft channelizer
08/13/1996CA2069944C Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links
08/08/1996WO1996024205A1 Method and apparatus for generating plural quadrature modulated carriers
08/08/1996CA2211093A1 Method and apparatus for generating plural quadrature modulated carriers
08/06/1996CA2066851C Multiple user digital receiver apparatus and method with combined multiple frequency channels
07/1996
07/31/1996EP0700626A4 Radio architecture with dual frequency source selection
07/24/1996EP0723347A1 Carrier stabilization in a transmission system
07/24/1996CN1127454A Digital data receiver
07/16/1996US5537435 Transceiver apparatus employing wideband FFT channelizer with output sample timing adjustment and inverse FFT combiner for multichannel communication network
07/11/1996WO1996021305A1 Multiple access digital transmitter and receiver
07/11/1996WO1996021292A1 Wideband frequency signal digitizer and method
07/11/1996DE19511849C1 Digital filter device, esp. for Frequency Division Multiplexed signals
07/09/1996US5535240 Transceiver apparatus employing wideband FFT channelizer and inverse FFT combiner for multichannel communication network
07/03/1996EP0720325A2 System for acquiring a desired carrier from an FDM signal
07/03/1996EP0720322A2 Optical access communications network
07/03/1996EP0720317A1 A wireless base station architecture for providing audio video data services
07/03/1996EP0719484A1 Broadband communications system
07/01/1996CA2166355A1 Optical communications network
06/1996
06/27/1996WO1996019883A1 A practical means for digital generation and combination of a multiplicity of cdma/fdma signals
06/27/1996WO1996019875A1 Frequency synchronized bidirectional radio system
06/27/1996WO1996019873A1 Method and apparatus for mitigating interference in a communication system
06/25/1996US5530471 Radio and television distribution system
06/19/1996EP0716789A1 Communication system for communicating with a plurality of selective call receivers and method therefor
06/19/1996EP0521995B1 Transmission and reception in a hostile interference environment
06/19/1996CN1032099C System of communication
06/18/1996US5528582 Network apparatus and method for providing two way broadband communications
06/18/1996US5528581 Diversity transmission system for sub-band diversity reception
06/12/1996CN1124547A A method and apparatus for determining signal usability
06/11/1996US5526348 Area radio communication with radio channels divided into channel groups
06/11/1996US5526343 Auxiliary service channel signal transmission system
06/06/1996WO1996018249A1 Device and method for multiplexing signal
06/06/1996WO1996017446A1 Data transmission method, transmitter, and receiver
06/06/1996WO1996017431A1 Universal radio architecture for low-tier personal communication system
06/05/1996CN1124080A Radio architecture with dual frequency source selection
06/05/1996CN1124075A A cellular/satellite communications system with improved frequency re-use
06/04/1996US5524014 Optical frequency translator
05/1996
05/23/1996WO1996015600A1 Communication system resource allocation method
05/22/1996CN1122976A Network apparatus and method for providing two-way broadband communications
05/21/1996US5519730 Communication signal having a time domain pilot component
05/21/1996US5519530 Peak compression circuit and light transmitter
05/15/1996EP0594755A4 Power distribution line communication system for reducing effects of signal cancellation
05/15/1996DE19535327C1 Verfahren zur gemeinsamen Übertragung digital und analog modulierter Rundfunk- und/oder Fernsehrundfunksignalen Method for the shared transmission digital and analog modulated radio and / or television broadcasting signals
05/02/1996WO1996013131A1 Transmitting digital data using multiple subcarriers
04/1996
04/25/1996WO1996012345A1 De/multiplexer of frequency bands
04/11/1996WO1996010871A1 Multiple band radio
04/11/1996WO1996006494A3 Nonlinear digital communications system
04/10/1996CN1120294A System and method for cellular digital packet voice channel selection
04/03/1996EP0704992A2 Cellular communications system with multicarrier signal processing
04/03/1996EP0704986A2 CDMA cellular communications with multicarrier signal processing
04/03/1996EP0704983A2 Method and apparatus for processing multicarrier signals
03/1996
03/27/1996EP0703685A2 Adaptive hybrid ARQ/FEC technique for multitone/multicarrier mtransmission
03/22/1996CA2155998A1 Adaptive arq/fec technique for multitone transmission
03/20/1996EP0702463A2 Improved subcarrier multiple access passive optical network
03/20/1996EP0701752A1 A method and apparatus for determining signal usability
03/19/1996US5500758 Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links
03/16/1996CA2153515A1 Subcarrier multiple access passive optical network
03/13/1996EP0701345A2 Multicarrier transmission using differential phases
03/13/1996EP0700626A1 Radio architecture with dual frequency source selection
03/13/1996EP0620959A4 Frequency synchronized bidirectional radio system.
03/13/1996CN1118644A A digital communication system and a receiver for use in such a system
03/12/1996US5499241 Broadband communications system
03/06/1996EP0681765A4 Microwave multiplexer with channels of varying fractional bandwidths.
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