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)
01/1998
01/22/1998WO1998002986A1 Subsequent frame variable data rate indication method for various variable data rate systems
01/22/1998CA2260974A1 Subsequent frame variable data rate indication method for various variable data rate systems
01/21/1998EP0819365A1 Mobile station user group operation
01/21/1998EP0727112A4 Dual-mode wireless unit with two spread-spectrum frequency bands
01/20/1998US5710974 Method for improving the reliability of a handover and call establishment, and a cellular radio system
01/20/1998US5710784 Multirate serial viterbi decoder for code division multiple access system applications
01/20/1998US5710768 Method of searching for a bursty signal
01/20/1998US5710767 Automatic data bypass of a removed/failed CDMA channel unit
01/14/1998EP0818901A2 Multi-code code division multiple access receiver
01/14/1998EP0818892A2 Synchronisation of the reverse link in a CDMA communications system
01/12/1998CA2210214A1 Cdma receiver with weighted interference cancellation
01/07/1998EP0817400A2 Method of controlling power on forward link in a cellular CDMA system
01/07/1998EP0817396A2 Spread spectrum communications system with transmitted reference
01/07/1998EP0815665A1 Method and system for communication over multiple channels in a spread spectrum communication system
01/07/1998EP0727111A4 Spread spectrum spectral density techniques
01/06/1998US5706275 Data transmission method, transmitter, and receiver
12/1997
12/31/1997WO1997050194A2 A method of controlling initial power ramp-up in cdma systems by using short codes
12/31/1997WO1997050191A1 Method and apparatus for rate determination in a communication system
12/31/1997WO1997046041A3 Connection establishment method and radio system
12/31/1997CN1169088A Method for accessing cell using two pilot channels in CDMA communication system of asynchronous or quasi-synchronous mode
12/31/1997CA2818770A1 Method and subscriber unit for performing an access procedure
12/31/1997CA2676866A1 Method and subscriber unit for performing an access procedure
12/30/1997US5703902 Method and apparatus for determining signal strength in a variable data rate system
12/30/1997US5703874 Broadband CDMA overlay system and method
12/29/1997EP0814624A2 CDMA communication system having means for controlling access in dependence on communication quality
12/29/1997EP0814581A2 CDMA communication method and group spreading modulator
12/29/1997EP0814572A2 CDMA system mobile communication receiver
12/24/1997WO1997049202A1 Signal transmitting method, mobile station device, and base station device for cdma mobile communication system
12/24/1997WO1997037456A3 Using orthogonal waveforms to enable multiple transmitters to share a single cdm channel
12/24/1997CN1168611A Transmitting/receiving apparatus using plurality of spreading codes
12/17/1997EP0813315A2 Spread spectrum QAM transmission
12/17/1997EP0812503A2 Cellular communication system with dynamically modified data transmission parameters
12/17/1997EP0812500A1 Method and apparatus for providing variable rate data in a communications system using non-orthogonal overflow channels
12/17/1997EP0812449A1 Alarm sensor multiplexing
12/17/1997CN1168035A Spectrum spread communications system for high-speed communications
12/10/1997EP0812069A2 Dual-mode cellular telephone system
12/10/1997CN1167411A Mobile commucation system
12/10/1997CN1167377A Pilot signal test method, device and receiver
12/10/1997CN1167376A Radio signal relay equipment of code classfied multi-address communication system
12/09/1997US5696766 Apparatus and method of synchronizing a transmitter in a subscriber terminal of a wireless telecommunications system
12/04/1997WO1997046041A2 Connection establishment method and radio system
12/04/1997WO1997046032A1 Apparatus for upgrading of a one-way message transmission system
12/04/1997WO1997045976A1 Transmission of signaling data in an adjustable rate wireless communication system
12/04/1997WO1997045970A1 Subscriber unit for cdma wireless communication system
12/04/1997CA2256719A1 Transmission of signaling data in an adjustable rate wireless communication system
12/03/1997EP0810753A2 Multiple access transmitting and receiving system employing multiplexing of multicarrier signals
12/03/1997EP0810747A2 Frequency group reallocation in an FDM/TDM radio in the case of high traffic level
12/03/1997EP0810746A2 Transmission apparatus using a multi-carrier signal with allocation of subcarriers
12/03/1997EP0810744A2 Communication method and communication apparatus
12/03/1997EP0810743A2 Mobile communication system with transmission power control
12/03/1997EP0810742A2 Direct sequence code division multiple access transmission method using pilot symbols
12/03/1997EP0810740A2 Interference canceller for CDMA communication
12/03/1997EP0810738A2 Receiving method and receiving apparatus
12/03/1997CN1166762A Radio communication system and method and mobile communication terminal device
12/03/1997CN1166727A Method for determining weighting coefficients in CDMA radio receiver
12/02/1997US5694414 Multi-band, multi-mode spread-spectrum communication system
12/02/1997US5694389 OFDM transmission/reception system and transmitting/receiving apparatus
12/02/1997US5694388 CDMA demodulator and demodulation method
11/1997
11/27/1997WO1997044920A1 Self-calibration apparatus and method for communication device
11/26/1997EP0809373A2 Transmitting/receiving apparatus using a plurality of spreading codes
11/26/1997EP0809372A2 Optical network unit and central unit of an optical communication network
11/26/1997EP0809364A2 Spread spectrum communication system
11/26/1997EP0808532A1 Frequency hopped return link with net entry channel for a satellite personal communications system
11/26/1997CN1166094A Spread spectrum communication system
11/25/1997US5692007 Method and apparatus for differential phase encoding and decoding in spread-spectrum communication systems with continuous-phase modulation
11/25/1997US5691979 Signaling protocol for an infrastructureless communication system and method of using same
11/23/1997CA2205990A1 Optical network unit and center of an optical communication network
11/19/1997EP0807345A1 Data transmission method, transmitter, and receiver
11/19/1997CN1165599A Serial linked interconnect for summation of multiple waveforms on a common channel
11/19/1997CN1165465A Receiver integrated circuit for mobile telephone
11/19/1997CN1165446A Technique for minimizing variance of inteference in packetized interference-limited wireless communication systems
11/18/1997US5689524 PN code synchronizing method and transmitter and receiver in spread spectrum communication systems
11/18/1997US5689511 Data receiver for receiving code signals having a variable data rate
11/18/1997US5689502 Efficient frequency division duplex communication system with interleaved format and timing adjustment control
11/12/1997EP0806096A1 Network entry channel for cdma systems
11/12/1997EP0806079A1 Transmission and reception of cpm spread-spectrum communications
11/12/1997CN1164943A Code acquisition in cdma communication system using multiple walsh channel
11/12/1997CN1164785A Spectrum spread communication system
11/12/1997CN1164783A Method for adaptively adjusting weighting coefficients in CDMA radio receiver
11/12/1997CN1036429C Diversity receiver in CDMA cellular telephone system and method for processing signal
11/11/1997US5687171 Device and method for allocating radio channels in a CDMA system
11/11/1997US5687166 Modulation system for spread spectrum CDMA communication
11/11/1997US5687162 DS/CDMA receiver having an interference cancelling function capable of asssuring a desired reception quality in a narrow-band DS/CDMA
11/11/1997US5686869 Pulse-width modulating device
11/06/1997WO1997041647A1 System for radio transmission of digital signals between a plurality of subscriber stations and a base station
11/05/1997EP0805565A2 Spread spectrum communications system for high-speed communications
11/05/1997EP0804840A2 Apparatus and method for generating pseudorandom quantities based upon radio channel characteristics
11/05/1997EP0804836A1 Method and apparatus for the formatting of data for transmission
11/04/1997CA2097692C Method and apparatus for cancelling spread-spectrum noise
10/1997
10/30/1997WO1997040593A1 Code-rate increased compressed mode ds-cdma systems and methods
10/30/1997WO1997040592A1 Multi-code compressed mode ds-cdma systems and methods
10/30/1997CA2252382A1 Multi-code compressed mode ds-cdma systems and methods
10/28/1997US5682605 Wireless communication system
10/22/1997EP0801856A1 Spread-spectrum system and method
10/22/1997EP0476127B1 Cellular communications system
10/22/1997CN1162881A Radio transmission system
10/21/1997US5680414 Synchronization apparatus and method for spread spectrum receiver
10/15/1997CN1162224A Spectrum-diffusion communication mode
10/14/1997US5677929 Automobile on-board and/or portable telephone system
10/09/1997WO1997037471A1 Method and apparatus for determining coding rate in a wireless communication system
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