Patents
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)
11/1999
11/17/1999EP0956649A1 Adaptive radio receiver apparatus
11/17/1999EP0956648A1 Transmitter combiner arrangement
11/17/1999EP0956644A1 Automatic frequency control circuit
11/17/1999EP0956537A1 Transmission module for a transponder device, transponder device and method for operating said device
11/17/1999EP0806087A4 Method and apparatus for a linear transmitter
11/17/1999EP0774147B1 Alerting device and system for abnormal situations
11/17/1999EP0705501B1 Method and apparatus for testing telecommunications equipment using a reduced redundancy test signal
11/17/1999EP0670087B1 Method and arrangement for controlling the operation of a high-frequency power amplifier
11/17/1999EP0489838B1 Battery saver for a tdm system
11/17/1999CN2349735Y Cell box for mobile telephone set
11/17/1999CN2349734Y Mobile telephone set with pulling out built-in microphone and earphone
11/17/1999CN2349723Y Casing for communication equipment
11/17/1999CN1235741A Method of combining several signals, and base station
11/17/1999CN1235716A Method for wireless information transfer
11/17/1999CN1235715A Circulator usage in time division duplex radios
11/17/1999CN1235712A Muting microphone in radiocommunication systems
11/17/1999CN1235701A Belt clip holder with auxiliary battery
11/17/1999CN1235501A Mobile communication system by code division multiple access
11/17/1999CN1235498A Radio communication apparatus and radio communication method
11/17/1999CN1235492A Method and system for optimizing for ward power control in CDMA system
11/17/1999CN1235490A Radio selective-calling receiver
11/17/1999CN1235485A Method and apparatus for increasing output impedance of transmit amplifier during reveive mode of two-way communication unit
11/17/1999CN1235470A Mobile radio telephone capable of recording/reproducing voice signal and method for controlling the same
11/17/1999CN1235444A Pilot signal detection method and receiver
11/17/1999CN1235442A Spectrum spreading communication system using single spreading code
11/17/1999CN1235438A System, apparatus and method for multi-carrier transmission
11/17/1999CN1235432A CDMA multi-user receiving apparatus including interference canceller with optimal receiving state
11/17/1999CN1235431A Wireless frequency expansion multi-point controller
11/17/1999CN1235416A Radio device including receiver and method of adjusting one of high-frequency amplifier stages of receiver
11/17/1999CN1046608C Apparatus and method for data compression using signal-weighted quantizing bit allocation
11/17/1999CN1046607C 噪声抑制装置 Noise suppression apparatus
11/16/1999US5987405 Speech compression by speech recognition
11/16/1999US5987382 Radio signal receiver for motor vehicles with an RDS decoder for digital signals
11/16/1999US5987339 Receiving portion of radio communication device
11/16/1999US5987337 Radio pager
11/16/1999US5987325 Multiple smart card phone and method
11/16/1999US5987314 Radio communication apparatus having a high receiving sensitivity
11/16/1999US5987313 Apparatus for controlling tuning point and tuning circuit having function of controlling tuning point
11/16/1999US5987311 Apparatus for enabling a keypad in response to antenna extension
11/16/1999US5987310 Cellular phone
11/16/1999US5987309 Transceiver circuits for TDMA system with variable frequency second local oscillator
11/16/1999US5987308 Portable terminal having a shared antenna with reduced standing wave ratio
11/16/1999US5987307 Power control in wireless radio tranceivers
11/16/1999US5987304 Repeater with variable bandwidth
11/16/1999US5987141 Stereo expander
11/16/1999US5987098 Method and system for sparing echo cancellers
11/16/1999US5987076 Coherent signal processing for CDMA communication system
11/16/1999US5987060 System and method of radio communications with an up-down digital signal link
11/16/1999US5987059 Method for Doppler-replica harmonic avoidance
11/16/1999US5987058 Wireless alarm system
11/16/1999US5987057 Wireless local area networks
11/16/1999US5987056 PN sequence hopping method and system
11/16/1999US5987020 Intermittent transmission control system
11/16/1999US5987016 Method and apparatus for tracking a communication signal in a wireless communication system
11/16/1999US5987015 Code division multiplexing communication system and method
11/16/1999US5987014 Multipath resistant, orthogonal code-division multiple access system
11/16/1999US5986714 Method, apparatus and computer program product for selectively reducing bandwidth of real-time video data
11/16/1999US5986608 Antenna coupler for portable telephone
11/16/1999US5986505 Circular stripline package incorporating a MMIC low noise amplifier
11/16/1999US5984500 Remote controller
11/16/1999US5983646 Cooling apparatus for a high-frequency receiver
11/16/1999CA2133844C Method of transmitting and/or storing digitized data-reduced audio signals
11/16/1999CA2120867C Radio communication apparatus which can quickly recover from misjudgement of levels of a multilevel modulated signal
11/13/1999CA2270607A1 A technique for time alignment of uplink cdma signals
11/13/1999CA2267714A1 Method and apparatus to reduce transmitter overload of a transmit scanning receiver
11/11/1999WO1999057930A1 Compact cable tuner/transceiver
11/11/1999WO1999057929A1 Gsm cellular telephone and gps receiver combination
11/11/1999WO1999057819A1 Search window delay tracking in code division multiple access communication systems
11/11/1999WO1999057818A1 Double-balanced monolithic microwave integrated circuit mixer
11/11/1999WO1999057817A2 Code division multiple access transmitter and receiver
11/11/1999WO1999057809A1 High frequency receiver range switching circuit
11/11/1999WO1999057808A1 Control device for a radio receiver
11/11/1999WO1999057676A1 System for encoded rf and encoded magnetic field communication and method therefor
11/11/1999WO1999049586A3 Spread spectrum transceiver for use in wireless local area network and having multipath mitigation
11/11/1999DE19915031A1 Orthogonal frequency hopping pattern reuse scheme for radio telephone systems
11/11/1999DE19819544A1 Schaltungsanordnung zur Bereichsumschaltung in Hochfrequenzempfängern Circuit arrangement for range switching in high-frequency receivers
11/11/1999DE19819092A1 Receiver device for high frequency, vector modulated signals
11/11/1999DE19819090A1 Remote controller with alphanumeric input e.g. for television equipment
11/11/1999DE19819038A1 Frequency converter arrangement for high frequency receivers or generators
11/11/1999DE19809154C1 Combined radio and media player with drop-down front panel for car
11/11/1999CA2330638A1 Control device for a radio receiver
11/10/1999EP0955780A1 Wireless communication system, base station and mobile subscriber terminal, exchanging radio signals according to a sequence of frequency hoppings
11/10/1999EP0955744A2 Capacity allocation for ADSL
11/10/1999EP0955741A1 Channel estimating apparatus, and cdma receiver and cdma transceiver each having the apparatus
11/10/1999EP0955736A2 Method and apparatus for providing power control in a multi-carrier wide band CDMA system
11/10/1999EP0955735A2 Base station apparatus and transmission power control method
11/10/1999EP0955734A2 Pseudorandom binary sequence block shifter
11/10/1999EP0955733A2 PN code generation apparatus and method, and radio communication apparatus
11/10/1999EP0955732A1 Method and device to demultiplex a frequency demodulated stereo-multiplex-signal
11/10/1999EP0955698A1 High-frequency electronic device
11/10/1999EP0955548A1 Device for detecting electromagnetic waves
11/10/1999EP0954909A1 Method for coding an audio signal
11/10/1999EP0954824A1 System for communicating by remote interrogating for transmitting inhibiting commands
11/10/1999EP0954756A1 Radioelectric transponder equipped with frequency detuning antenna and circuit
11/10/1999CN1234942A Compatible transmission and reception of operational signals to be processed by receiver
11/10/1999CN1234929A Method and apparatus for preforming data rate determination
11/10/1999CN1234926A Signal processor employing spectral property of signals
11/10/1999CN1234896A Information decorder and decoding method, information encoder and encoding method and distribution medium
11/10/1999CN1234895A Noise cancellation and noise reduction apparatus
11/10/1999CN1234710A Method of repeated using of quadrature frequency hopping pictures