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)
03/1999
03/31/1999CN1212596A Transmission power control device capable of varying transmission power at wide rance
03/31/1999CN1212595A Network synchronous device
03/31/1999CN1212589A Transmitter with increased traffic throughtput in digital mobile telecommunication system and method for operating the same
03/31/1999CN1212587A Soft switching RAKE structure based on programmable digital matching wave filter
03/31/1999CN1212548A Method for managing received data in complex digital cellular terminal
03/31/1999CN1212536A Method and device of superimposing additional information signal on video signal and detecting said additional information from said video signal
03/31/1999CN1212534A Method for transmitting short message in digital mobile communication terminal with short message service function
03/31/1999CN1212528A Matched filter and timing detection method
03/31/1999CN1212478A Electric filter, duplexer, and communication system
03/31/1999CN1212387A Automatic radio station memory programming
03/31/1999CN1042782C Radio communication apparatus capable of isolating receiver from transmitter during reception operation
03/31/1999CN1042767C Rollerball control arrangement for timepiece adapted to receive radio broadcast messages
03/30/1999US5890125 Method and apparatus for encoding and decoding multiple audio channels at low bit rates using adaptive selection of encoding method
03/30/1999US5890112 Memory reduction for error concealment in subband audio coders by using latest complete frame bit allocation pattern or subframe decoding result
03/30/1999US5890107 Sound signal processing circuit which independently calculates left and right mask levels of sub-band sound samples
03/30/1999US5890077 Mobile terminal selectively operable with a booster and mobile communication system
03/30/1999US5890074 Modular unit headset
03/30/1999US5890071 Radio telephone set with broadcast receiving functions
03/30/1999US5890060 Micro-wave mixing circuit and down-flow converter using the same
03/30/1999US5890059 Impulse noise blanking apparatus
03/30/1999US5890053 Automatic display mode for a multiplex broadcasting receiver
03/30/1999US5890051 On-channel transceiver architecture in a dual band mobile phone
03/30/1999US5889864 Data transmission systems
03/30/1999US5889827 Method and apparatus for digital symbol detection using medium response estimates
03/30/1999US5889824 Intermittent receiving apparatus capable of reducing current consumption
03/30/1999US5889821 Low noise front-end blanking and interleaving for satellite reception in pulsed interference environments
03/30/1999US5889819 EMI reduction using double sideband suppressed carrier modulation
03/30/1999US5889817 Communication system with data comparison circuit
03/30/1999US5889815 Spread spectrum communication receiver
03/30/1999US5889610 Optical protection switching system
03/30/1999US5889489 Diode receiver for radio frequency transponder
03/30/1999US5889488 Mobile communication system
03/30/1999US5888087 One-handed dock for a portable data collection terminal
03/30/1999CA2128596C Arrangement for simultaneously interrogating a plurality of portable radio frequency communication devices
03/30/1999CA2083303C Digital block processor for processing a plurality of transmission channels in a wireless radiotelephony system
03/25/1999WO1999014914A1 Afc circuit, carrier reproducing circuit, and receiver
03/25/1999WO1999014897A2 Frequency hopping piconets in an uncoordinated wireless multi-user system
03/25/1999WO1999014878A1 A method of and apparatus for transmitting data in a multiple carrier system
03/25/1999WO1999014870A2 Practical space-time radio method for cdma communication capacity enhancement
03/25/1999WO1999014866A2 Transmission system with improved reconstruction of missing parts
03/25/1999WO1999014864A1 Mobile telephone battery
03/25/1999WO1999014863A1 Broad band digital radio receiver for multicarrier signal
03/25/1999WO1999014862A1 Frame structure for cellular telephones
03/25/1999WO1999014854A2 A high frequency amplifier, and a communication receiver or transceiver
03/25/1999WO1998048475A9 Composite antenna for duplexer-free duplex operation terminals and method
03/25/1999DE19746083C1 Data transmission method for radio interface in radio communications system
03/25/1999DE19741854A1 Car radio with telephone handset inlet in horizontal retainer or front plate
03/25/1999DE19740719A1 Signal interference prevention circuit for cellular radio system
03/25/1999CA2509947A1 Transmitter diversity technique for wireless communications
03/25/1999CA2304189A1 Frequency hopping piconets in an uncoordinated wireless multi-user system
03/24/1999EP0903951A2 Base station searching device
03/24/1999EP0903937A2 Digital television signal receiving tuner system
03/24/1999EP0903914A1 Cordless telephone system and method
03/24/1999EP0903898A2 Equalizing method and equalizer for OFDM receiver
03/24/1999EP0903871A2 Spread spectrum signal generating device and method
03/24/1999EP0903870A2 CDMA radio communication apparatus
03/24/1999EP0903869A2 Clock regenerating circuit in direct sequence spread spectrum communication system
03/24/1999EP0903868A1 SIM card reader with adapter for reading different size cards , and telephone with same
03/24/1999EP0903852A1 Aligning method for a multistage selective amplifier
03/24/1999EP0903689A1 Demodulator for contactless chip card
03/24/1999EP0903688A1 Detector of radio frequency signals for contactless IC card
03/24/1999EP0903456A1 Receiver for an automotive remote keyless entry system
03/24/1999EP0903047A2 Method and apparatus of preserving power of a remote unit in a dispatch system
03/24/1999EP0903024A2 Method of, and apparatus for, processing low power pseudo-random code sequence signals
03/24/1999EP0903021A2 A radio receiver for receiving a main radio broadcast signal and a monolythic integrated circuit for use in such radio receiver
03/24/1999EP0903019A1 Subscriber unit for a cdma wireless communication system
03/24/1999EP0903016A2 Code division multiple access communication system
03/24/1999EP0903015A1 Method of transmitting and receiving data, system and receiver therefor
03/24/1999EP0865645A4 User selectable receiver addresses for wireless communication systems
03/24/1999EP0738450B1 Consumer interface for a digital television system
03/24/1999EP0738442B1 Dual mode receiver having battery saving capability
03/24/1999CN1212093A Method and apparatus for signal demodulation and diversity combining of orthogonally modulated signals
03/24/1999CN1212091A Automatic channel switching for jamming avoidance in burst-mode packet data wireless communication networks
03/24/1999CN1212078A Portable radio communication device
03/24/1999CN1211891A Mobile radio telephone
03/24/1999CN1211889A Duplex out-door base station transceiver subsystem utilizing hybrid system
03/24/1999CN1211870A Selective RF circuit with varactor tuned bandpass switched bandpass filters
03/24/1999CN1211861A Orthogonal code hopping multiple access communication system
03/24/1999CN1042687C Coupling apparatus and method for wireless telephone
03/23/1999US5887267 Bus arbitrators for common local oscillators in cellular radiotelephone base stations
03/23/1999US5887258 Device for allowing the use in an aircraft of radio communication means
03/23/1999US5887247 Radio transmission system and a radio apparatus for use therein
03/23/1999US5887246 Amplifier circuit for an intermediate-frequency signal of a radio receiver
03/23/1999US5887066 Headphone apparatus
03/23/1999US5887038 Adaptive antenna array processing arrangement using a combined coherent and constant-modulus reference signal
03/23/1999US5887034 DS-CDMA multiple user serial interference canceler unit and method of transmitting interference replica signal of the same
03/23/1999US5887028 Digital receiver
03/23/1999US5887023 Method and apparatus for a frequency hopping-spread spectrum communication system
03/23/1999US5887022 Peer-peer frequency hopping spread spectrum wireless system
03/23/1999US5887021 Base station receiver and a method for receiving a signal
03/23/1999US5887020 Multi-band, multi-mode spread-spectrum communication system
03/23/1999US5886987 FDD/CDMA transmission/reception system
03/23/1999US5886986 Duplexer having dual coupled line characteristics
03/23/1999US5886753 Method of controlling remote control electronic apparatus coupled to a network and a remote control electronic apparatus to be coupled to a network
03/23/1999US5886749 Demodulation using a time domain guard interval with an overlapped transform
03/23/1999US5886697 Method and apparatus for improved graphical user interface having anthropomorphic characters
03/23/1999US5886650 Car navigation system with FM multi-broadcast signal receiving function
03/23/1999US5886573 Amplification using amplitude reconstruction of amplitude and/or angle modulated carrier
03/23/1999US5886547 Circuit and method of controlling mixer linearity
03/23/1999US5886427 Low signal loss type hot stand-by switching unit