Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission
More topics under "H04B - Transmission" (547,929)
H04B 1 - Details of transmission systems, not covered by a single one of groups; Details of transmission systems not characterised by the medium used for transmission (188,568)
H04B 10 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication (73,125)
H04B 11 - Transmission systems employing ultrasonic, sonic or infrasonic waves (1,545)
H04B 13 - Transmission systems characterised by the medium used for transmission, not provided for in groups (1,959)
H04B 14 - Transmission systems not characterised by the medium used for transmission (7,274)
H04B 15 - Suppression or limitation of noise or interference (10,227)
H04B 17 - Monitoring; Testing (29,423)
H04B 3 - Line transmission systems (31,523)
H04B 5 - Near-field transmission systems, e.g. inductive loop type (17,859)
H04B 7 - Radio transmission systems, i.e. using radiation field (186,426)
Patents for H04B - Transmission (2,303)
03/1998
03/18/1998EP0829976A2 Broad linewidth lasers for optical fiber communication systems
03/17/1998US5729196 Personal location and message system and unit
03/04/1998CN1175329A Method and apparatus for increasing receiver immunity to interference
02/1998
02/24/1998US5722063 Method and apparatus for increasing receiver immunity to interference
02/24/1998US5722061 Method and apparatus for increasing receiver immunity to interference
02/12/1998WO1997049212A3 Apparatus and method of determining symbol rate and a carrier frequency
01/1998
01/06/1998US5706275 Data transmission method, transmitter, and receiver
12/1997
12/24/1997WO1997049212A2 Apparatus and method of determining symbol rate and a carrier frequency
12/24/1997WO1997023108A3 Wireless telecommunications system utilizing cdma radio frequency signal modulation in conjunction with the gsm a-interface telecommunications network protocol
12/23/1997CA2062605C Broad linewidth lasers for optical fiber communication systems
12/10/1997EP0811298A1 Wireless telecommunications system utilizing cdma radio frequency signal modulation in conjunction with the gsm a-interface telecommunications network protocol
12/03/1997CN1166729A Wireless communication device and method of frequency-drift compensation
11/1997
11/25/1997US5692007 Method and apparatus for differential phase encoding and decoding in spread-spectrum communication systems with continuous-phase modulation
11/05/1997EP0804848A1 Method for establishing a pam signal connection usint a training sequence
10/1997
10/23/1997WO1997032406A3 Method for controlling a base station, and a base station
10/22/1997EP0801856A1 Spread-spectrum system and method
10/21/1997US5680414 Synchronization apparatus and method for spread spectrum receiver
10/15/1997CN1162376A Remote transmitter power control in CDMA communications system
10/14/1997US5678187 Method and apparatus for reducing interference in a radio communication link of a cellular communication system
10/01/1997EP0797873A2 Method and apparatus for increasing receiver immunity to interference
09/1997
09/30/1997US5673286 Spread spectrum multipath processor system and method
09/04/1997WO1997032406A2 Method for controlling a base station, and a base station
08/1997
08/19/1997US5659574 Multi-bit correlation of continuous phase modulated signals
07/1997
07/15/1997US5648982 Spread spectrum transmitter
07/15/1997US5648962 Base station in a cellular radio system and a cellular radio system
07/10/1997CA2194628A1 Chromatic dispersion compensator and chromatic dispersion compensating optical communication system
06/1997
06/26/1997WO1997023108A2 Wireless telecommunications system utilizing cdma radio frequency signal modulation in conjunction with the gsm a-interface telecommunications network protocol
06/04/1997EP0776557A1 Multi-band, multi-mode spread-spectrum communication system
05/1997
05/21/1997EP0774179A1 Remote transmitter power control in a cdma communications system
05/13/1997US5629956 Method and apparatus for reception and noncoherent serial correlation of a continuous phase modulated signal
05/06/1997US5627856 Method and apparatus for receiving and despreading a continuous phase-modulated spread spectrum signal using self-synchronizing correlators
04/1997
04/22/1997US5623484 Method and apparatus for controlling signal quality in a CDMA cellular telecommunications
03/1997
03/26/1997EP0765046A2 Broad linewidth lasers for optical fiber communication systems
03/11/1997US5610940 Method and apparatus for noncoherent reception and correlation of a continous phase modulated signal
03/06/1997WO1997008862A1 A data transmission method, and a cellular radio system
02/1997
02/20/1997WO1997006592A1 Generator
02/19/1997CN1143443A Method of allocating frequency bands to different cells, and TDMA cellular radio systus
02/18/1997US5604730 Remote transmitter power control in a contention based multiple access system
01/1997
01/08/1997EP0671083B1 Method and apparatus for controlling signal quality in a cdma cellular telecommunications system
01/08/1997CN1140000A Data transmission method, transmitter and receiver
12/1996
12/10/1996US5584068 Direct conversion receiver
12/04/1996EP0745291A1 Data transmission method, transmitter, and receiver
11/1996
11/13/1996EP0741953A1 Method of allocating frequency bands to different cells, and tdma cellular radio system
11/12/1996US5574747 Spread spectrum adaptive power control system and method
10/1996
10/22/1996CA1338675C Actuator and communication systems
10/16/1996CN1133522A Automatic defect detecting mechanism for techician carried test and communication device
10/08/1996US5563907 For use with a transmitter
09/1996
09/11/1996CN1130952A 语言活动性检测器 Language activity detector
09/06/1996WO1996019048A3 Method and apparatus for increasing receiver immunity to interference
08/1996
08/29/1996WO1996017485A3 Method of allocating frequency bands to different cells, and tdma cellular radio system
08/21/1996EP0407530B1 Multiplexed synchronous/asynchronous data bus
07/1996
07/17/1996EP0722229A1 Device at telecommunications system
07/11/1996WO1996021295A1 Spread-spectrum system and method
07/03/1996EP0719439A1 Voice activity detector
07/03/1996CN1126008A Base station in a cellular radio system and a cellular radio system
06/1996
06/20/1996WO1996019048A2 Method and apparatus for increasing receiver immunity to interference
06/06/1996WO1996017485A2 Method of allocating frequency bands to different cells, and tdma cellular radio system
06/06/1996WO1996017446A1 Data transmission method, transmitter, and receiver
05/1996
05/15/1996CA2158773A1 Method and circuit for regulating the power of and linearizing a transmission signal of a radio device
05/09/1996WO1996013908A1 Method for establishing a pam signal connection usint a training sequence
04/1996
04/02/1996CA2069142C Digital class receiver
03/1996
03/13/1996EP0701336A2 Wireless communication system and station for use therein
03/13/1996EP0701335A2 Wireless communication system and station for use therein
03/13/1996EP0700603A1 Base station in a cellular radio system and a cellular radio system
02/1996
02/28/1996EP0440673B1 Method and apparatus for automatically adjusting the output power of a transmitter
02/28/1996EP0378704B1 Optical shunt device
02/28/1996CN1117620A 一种分布式计算机系统 A distributed computer system
02/13/1996US5491832 Cellular radio communications system
02/08/1996WO1996003813A1 Remote transmitter power control in a cdma communications system
02/08/1996CA2195984A1 Remote transmitter power control in a cdma communications system
02/07/1996CN1116475A Communication process in a radio telephone system
11/1995
11/08/1995EP0680675A1 Communication process in a radio telephone system
11/02/1995EP0680185A2 A distributed computer system
10/1995
10/24/1995US5461639 Fast forward link power control in a code division multiple access system
09/1995
09/13/1995EP0671083A1 Method and apparatus for controlling signal quality in a cdma cellular telecommunications system.
09/06/1995EP0465463B1 Power conservation method and apparatus for a portion of a predetermined signal
06/1995
06/27/1995US5428818 Method and apparatus for reducing interference in a radio communication link of a cellular communication system
06/15/1995WO1995015038A3 Communication method in a radio telephone system
06/14/1995EP0360803B1 Portable communications receiver with separate information presentation means
06/01/1995WO1995015038A2 Communication method in a radio telephone system
04/1995
04/11/1995CA2088684C Residual echo elimination with proportionate noise injection
03/1995
03/30/1995WO1995008876A1 Method and apparatus for controlling signal quality in a cdma cellular telecommunications system
03/23/1995WO1995008170A1 Voice activity detector
02/1995
02/01/1995EP0577653B1 Process for finding the transmission properties of an electric line
01/1995
01/17/1995US5383219 Fast forward link power control in a code division multiple access system
12/1994
12/14/1994EP0409880B1 Actuator and communication system
12/08/1994WO1994028644A1 Base station in a cellular radio system and a cellular radio system
08/1994
08/10/1994EP0609964A2 Adjustable reactance device and method
05/1994
05/18/1994EP0597436A1 Spontaneous emission source having high spectral density at a desired wavelength
03/1994
03/15/1994US5295209 Spontaneous emission source having high spectral density at a desired wavelength
02/1994
02/21/1994CA2104555A1 Pager with reverse paging facility
02/21/1994CA2104544A1 Remote position determination system
02/01/1994US5283784 Echo canceller processing techniques and processing
01/1994
01/12/1994EP0577653A1 Process for finding the transmission properties of an electric line.
07/1993
07/07/1993EP0550421A2 Optical shunt device
05/1993
05/26/1993EP0542882A1 Residual echo elimination
05/12/1993WO1993010601A1 Method and apparatus for reducing interference in a radio communication link of a cellular communication system
04/1993
04/20/1993CA2005508C Multiplexed synchronous/asynchronous data bus
04/13/1993CA2000683C Power conservation method and apparatus for a portion of a predetermined signal
04/06/1993US5200964 Broad linewidth lasers for optical fiber communication systems
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