Patents for 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) |
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07/09/1997 | EP0467899B1 Radio having optical controls |
07/09/1997 | CN1154186A A direct-sequence spread spectrum communication system, A primary radio station, and a secondary radio station |
07/09/1997 | CN1154185A Mobile radio transmitting/receiving device with transmitting power regulation circuit |
07/09/1997 | CN1154019A Time-division radio that induces reduced baseband interference |
07/09/1997 | CN1154018A Frequency synthesizer |
07/08/1997 | US5647006 Mobile radio terminal comprising a speech |
07/08/1997 | US5646964 DS/CDMA receiver for high-speed fading environment |
07/08/1997 | US5646958 Decision feedback equalizer for canceling short-and long-multipath components using correspondingly delayed decision symbols |
07/08/1997 | US5646701 Trainable transmitter with transmit/receive switch |
07/08/1997 | US5646634 Miniaturized antenna for converting an alternating voltage into a microwave and vice versa, notably for horological applications |
07/08/1997 | US5646627 Method and apparatus for controlling a biphase modulation to improve autocorrelation in pseudorandom noise coded systems |
07/08/1997 | US5646608 Apparatus and method for an electronic device control system |
07/08/1997 | US5646591 Advanced method of indicating incoming threat level to an electronically secured vehicle and apparatus therefor |
07/08/1997 | CA2095316C Reduction of interchannel harmonic distortions in an analog and digital signal multiplex |
07/08/1997 | CA2083277C Interference detection technique |
07/03/1997 | WO1997023998A1 Information transmission/reception system |
07/03/1997 | WO1997023961A1 Method and device for eliminating spurious signals in a direct-sequence spread spectrum link |
07/03/1997 | WO1997023960A1 Remote control device and remote control method |
07/03/1997 | WO1997023959A2 A receiver and arrangement for detecting adjacent channel interference |
07/03/1997 | WO1997023958A2 A receiver, an arrangement and a method for comparing two signals |
07/03/1997 | WO1997023929A1 Coaxial accessory connector |
07/03/1997 | DE19654295A1 Noise suppression control circuit especially for shot noise |
07/03/1997 | DE19646603A1 GPS mobile telephone especially for emergency calls |
07/03/1997 | DE19600050A1 Mobile radio transceiver in which position of transmitter and receiver device is adjustable |
07/03/1997 | DE19549148A1 Verfahren und Anordnung zur Funkübertragung von digitalen Signalen Method and system for wireless transmission of digital signals |
07/03/1997 | CA2240867A1 Method and device for eliminating spurious signals in a direct-sequence spread spectrum link |
07/02/1997 | EP0782364A2 Method and apparatus for the dynamic allocation of signal bandwidth between audio, video and data signals |
07/02/1997 | EP0782358A2 Mobile communicator |
07/02/1997 | EP0782308A1 Personal multifunction wrist-device |
07/02/1997 | EP0782275A2 Method and apparatus for eliminating interference using transmission delay and code multiplexing in digital radio system |
07/02/1997 | EP0782274A1 Portable receiver comprising a manually actuable control device |
07/02/1997 | EP0782270A1 Tuning system for a digital satellite receiver with fine tuning provisions |
07/02/1997 | EP0782249A1 System and method for rejecting image signals |
07/02/1997 | EP0782213A2 Radio station with a separate antenna unit |
07/02/1997 | EP0781477A2 Communication system with sliding frequency, and transceiver for the system |
07/02/1997 | EP0781475A1 Dual-mode satellite/cellular phone with a frequency synthesizer |
07/02/1997 | EP0781474A2 A reception method, and a receiver |
07/02/1997 | EP0781473A1 Micropower rf transponder |
07/02/1997 | EP0781468A1 Improvements to a logarithmic converter |
07/02/1997 | EP0781467A2 Quadrature modulator with integrated distributed rc filters |
07/02/1997 | EP0781440A1 Device and method for the telecontrol of an object |
07/02/1997 | CN2257403Y Non-charging cell for mobile telephone |
07/02/1997 | CN1153580A High performance modem using pilot symbols for equalization and frame synchronization |
07/02/1997 | CN1153431A Method and apparatus for automatically tuning receiver |
07/02/1997 | CN1153369A Coding method and apparatus for using multi channel audio signals |
07/02/1997 | CN1153291A Position detection apparatus used for mobile object |
07/02/1997 | CN1035351C 高频放大器 High-frequency amplifier |
07/01/1997 | US5644785 Golf strap radio carrier |
07/01/1997 | US5644597 Adaptive equalizer and adaptive diversity equalizer |
07/01/1997 | US5644592 Parallel interference cancellation for CDMA applications |
07/01/1997 | US5644590 Spread spectrum communication apparatus and signal intensity detection apparatus |
07/01/1997 | US5644310 Integrated audio decoder system and method of operation |
07/01/1997 | US5644303 Specialized shaped universal remote commander |
06/27/1997 | CA2190545A1 System architecture and method for processing signals received over a path |
06/26/1997 | WO1997023054A1 Spread spectrum telecommunication system |
06/26/1997 | WO1997023053A1 Transmitter-receiver circuit for radio communication and semiconductor integrated circuit device |
06/26/1997 | WO1997023052A1 Improvements relating to the processing of broadcasting signals |
06/26/1997 | WO1997023051A2 Radio apparatus |
06/26/1997 | WO1997023016A1 A portable radio terminal having diversity reception antennas |
06/26/1997 | WO1997023015A1 Telescopic antenna for a mobile phone |
06/26/1997 | DE19653561A1 Mixer circuit using two diodes |
06/26/1997 | DE19653558A1 Automatic amplification regulation circuit |
06/26/1997 | DE19627027C1 Sheath wave trap for movable cable especially of NMR local antenna |
06/26/1997 | CA2239589A1 Telescopic antenna for a mobile phone |
06/25/1997 | EP0781018A1 Mobile device for, by way of a radio link, setting up a telecommunication connection |
06/25/1997 | EP0781005A1 Preemptive roaming in a cellular local area wireless network |
06/25/1997 | EP0780993A2 Radiotelephone transceiver operative over more than one frequency range |
06/25/1997 | EP0780992A1 Device for connecting a mobile telephone or radio apparatus to an external power supply |
06/25/1997 | EP0780991A2 Adaptor cable for a mobile radio |
06/25/1997 | EP0780990A2 Method and apparatus for remote control of electronic equipment |
06/25/1997 | EP0780989A2 Radio telephone with power saving |
06/25/1997 | EP0780988A2 Radio receiver with digital signal processing |
06/25/1997 | EP0780968A1 Multimode radio communications terminal |
06/25/1997 | EP0780690A2 Field sensor |
06/25/1997 | EP0780134A1 A modular system, particularly for biomedical applications, a unit and a communication system for use therein |
06/25/1997 | EP0780007A1 Radio frequency circuit and memory in thin flexible package |
06/25/1997 | EP0779994A1 Radio frequency identification tag |
06/25/1997 | EP0779990A1 Time-of-flight radio location system |
06/25/1997 | CN2257106Y Mobile phone cell with charging function |
06/25/1997 | CN1152991A Method and apparatus for rapid handover in a mobile radio system in the presence of abrupt radio signal attenuation |
06/25/1997 | CN1152986A Television program record scheduling and satellite receiver control using compressed codes |
06/25/1997 | CN1152981A Wideband FFT channelizer |
06/25/1997 | CN1152979A Channel hopping in a radio communications system |
06/25/1997 | CN1152829A Radio mobile telephone set with demountable spring-locked panel and capable of satisfying various demands of outward appearance |
06/25/1997 | CN1152823A Common frequency multiplex anti-interference real time identifying method and system |
06/25/1997 | CN1152821A Filter circuit for communication |
06/25/1997 | CN1152820A Matched filter circuit used for frequency-expansion communication |
06/25/1997 | CN1152805A Aerial assembly for radio communication device |
06/24/1997 | US5642437 Data processing system |
06/24/1997 | US5642402 Hands free equipment |
06/24/1997 | US5642397 Paging system which combines a paging signal with a standard broadcast baseband signal |
06/24/1997 | US5642383 Audio data coding method and audio data coding apparatus |
06/24/1997 | US5642378 Dual mode analog and digital cellular phone |
06/24/1997 | US5642377 Serial search acquisition system with adaptive threshold and optimal decision for spread spectrum systems |
06/24/1997 | US5642153 Consumer interface for a digital television system |
06/24/1997 | US5642111 High efficiency encoding or decoding method and device |
06/24/1997 | US5642103 Transponder used in a remote identification system |
06/24/1997 | US5642102 Pager with automatic detection of insertion into holster |
06/24/1997 | US5642083 High-frequency switch |
06/24/1997 | US5642063 Current-saving detection for input signal level exceeding a threshold value |