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)
07/1996
07/03/1996EP0719483A1 Process for determining the type of coding to be selected for coding at least two signals
07/03/1996EP0719482A1 A communication network comprising a plurality of receivers with user profile dependent selection of programmes
07/03/1996EP0649587A4 Improved portable power source and rf tag utilizing same.
07/03/1996CN1126010A Method and device for receiving code-division multiplex signal
07/03/1996CN1126007A A method of power conservation
07/03/1996CN1126006A A wide bandwidth discriminator for use in a radio receiver
07/03/1996CN1126004A Method and device for encoding information, method and device for decoding information, information transmitting method, and information recording medium
07/02/1996US5533097 Portable communication system comprising a local and wide area communication units which can store a communication when the wide area communication system is not available
07/02/1996US5533095 Data transfer system
07/02/1996US5533064 Digital radio receiver having limiter amplifiers and logarithmic detector
07/02/1996US5533058 Method and apparatus for low current RF signal detection
07/02/1996US5533056 Data encoder/decoder for data transceiver
07/02/1996US5533055 Carrier to interference ratio measurement
07/02/1996US5533051 Method for data compression
07/02/1996US5533048 Apparatus and method for compensating for limiter induced non-linear distortion in a wireless data communication system
07/02/1996US5533047 Threshold detector for digital radio transmission systems, devices comprising a threshold detector of this kind and corresponding utilization
07/02/1996US5533046 Spread spectrum communication system
07/02/1996US5533045 Automatic vehicle identification system, interrogator and responder included in the same
07/02/1996US5533038 Method and apparatus for the rapid detection and measurement of differential phase offset between two identical binary code sequences
07/02/1996US5533025 Robust frequency management and acquisition in a wireless local area network that uses frequency-hopping radios
07/02/1996US5533013 Communication method and system
07/02/1996US5533012 Code-division multiple-access system with improved utilization of upstream and downstream channels
07/02/1996US5533010 Channel switching control method and a cordless telephone system using the same
07/02/1996US5532760 Receiver capable of selectively receiving satellite broadcast TV signals and audio SCPC signals
07/02/1996US5532755 Apparatus for suppressing ghosts in signals modulating a carrier in quadrature phasing with a video carrier
07/02/1996US5532732 Apparatus and methods for using compressed codes for monitoring television program viewing
07/02/1996US5532695 Power of two length pseudorandom noise sequence generator
07/02/1996US5532686 Programmable transponder
07/02/1996US5532684 Bidirectional communication system in a remote control system for an audio/video system
07/02/1996US5532683 Paging receiver and radio frequency channel searching method for the same
07/02/1996US5532670 Method of indicating the threat level of an incoming shock to an electronically secured vehicle and apparatus therefore
07/02/1996US5532642 Feedforward-type distortion compensation circuit
07/02/1996US5532522 Printed circuit reader/exciter coil for vehicle security system
07/02/1996US5532471 Optical transimpedance amplifier with high dynamic range
07/02/1996CA2089478C Automatic length-reducing audio delay line
07/02/1996CA2072235C Radio pager with variable gain setting controlled according to presence and absence of sync codes
07/02/1996CA2069990C Rf power amplifier
07/02/1996CA2037780C Hybrid perceptual audio coding
07/01/1996CA2166376A1 Output control circuit for transmission power amplifying circuit
07/01/1996CA2166262A1 Portable radio terminal having a removable radio system unit
06/1996
06/28/1996CA2166158A1 Portable telephone set
06/27/1996WO1996019891A1 Position enhanced cellular system
06/27/1996WO1996019876A1 Method and apparatus for applying waveform prediction to subbands of a perceptual coding system
06/27/1996WO1996019875A1 Frequency synchronized bidirectional radio system
06/27/1996WO1996019874A1 Radio frequency device connectable to a processing unit, particularly a portable microcomputer
06/27/1996WO1996019873A1 Method and apparatus for mitigating interference in a communication system
06/27/1996WO1996019866A1 Differential audio line receiver
06/27/1996WO1996019864A1 Receiver circuit
06/27/1996WO1996019843A1 Strip line filter, receiver with strip line filter and method of tuning the strip line filter
06/27/1996WO1996019785A2 Method of and receiver for processing and reproducing a message
06/27/1996WO1996005682A3 Radiation shielding and range extending antenna assembly
06/27/1996DE4446781A1 Power matching device for transmitter end stage
06/27/1996DE4446558A1 Digitales Übertragungssystem mit verbessertem Decoder im Empfänger Digital transmission system with improved decoder in the receiver
06/27/1996DE4444423A1 Plug-and-socket arrangement for portable electrical equipment such as radio telephone with rechargeable battery
06/27/1996DE19547801A1 RF module for radio control transmitter
06/27/1996DE19535353A1 Radio receiver with active and reserve receiving systems
06/26/1996EP0719063A1 Mobile communication system using base station frequency correcting method
06/26/1996EP0719014A2 Modulation circuit used in an IC-card reading/writing apparatus
06/26/1996EP0719013A2 DC offset correction circuit
06/26/1996EP0719006A1 Bidirectional transceiver for high speed data system
06/26/1996EP0719003A2 Frequency hopped cellular mobile radio system combining OFDM and frequency hopping
06/26/1996EP0718998A2 De-spread code phase detection apparatus in spread spectrum type receiver
06/26/1996EP0718991A1 Transimpedance amplifier with high dynamic range for use in optical receivers
06/26/1996EP0718985A2 Apparatus and method for power level control in radio communications system
06/26/1996EP0718984A2 Apparatus and method for power level control in radio communication system
06/26/1996EP0718983A1 Differential modulation spread spectrum
06/26/1996EP0718982A2 Error concealment method and apparatus of audio signals
06/26/1996EP0718981A2 Antenna switching circuit suitable for a radio-frequency apparatus with a built-in antenna
06/26/1996EP0718969A2 Power controller for RF transmitters
06/26/1996EP0718965A1 Class A high frequency amplifier and receiver with at least such an amplifier
06/26/1996EP0718951A1 Electrical power supply device especially for portable apparatuses
06/26/1996EP0718910A1 Wristwatch with high frequency transmitter
06/26/1996CN1125497A A method for a transmitter to compensate for varying loading without an isolator
06/26/1996CN1125366A Radio communication apparatus
06/26/1996CN1032176C Radio frequency apparatus
06/25/1996US5530929 Homodyne receiver minimizing oscillator leakage
06/25/1996US5530928 Balanced dual mode mixer apparatus
06/25/1996US5530927 Doubly balanced superconductive mixer network
06/25/1996US5530924 Radio station memory presets with stored audio effects
06/25/1996US5530923 Dual mode transmission system with switched linear amplifier
06/25/1996US5530922 Power detector with matching impedance for radio frequency signal amplifiers
06/25/1996US5530921 Enhanced system and method for implementing a backup control channel in a cellular telecommunication network
06/25/1996US5530920 Automatic output level control system for multi-carrier radio transmission apparatus
06/25/1996US5530919 Mobile communicator with means for attenuating transmitted output toward the user
06/25/1996US5530911 Method and apparatus for battery drain reduction by adjusting for dynamic changes of receiver warm-up time
06/25/1996US5530908 Apparatus for providing fault tolerance in a radio communication system
06/25/1996US5530750 Apparatus, method, and system for compressing a digital input signal in more than one compression mode
06/25/1996US5530723 Automatic frequency control arrangement
06/25/1996US5530722 Quadrature modulator with integrated distributed RC filters
06/25/1996US5530717 Smooth spectrum spreading with a small spreading factor
06/25/1996US5530697 For demodulating a baseband signal modulated by a pn code
06/25/1996US5530655 Digital sub-band transmission system with transmission of an additional signal
06/25/1996US5530619 Hand-held data capture system with interchangeable modules and side-mounted function key
06/25/1996US5530405 Low consumption multi-stage amplifier, and a vehicle onboard signal receiver having such an amplifier
06/25/1996CA2073341C Frequency control system
06/25/1996CA2071660C Transmission power control method and apparatus in satellite communication
06/21/1996CA2165607A1 Power feeding device, especially for portable apparatus
06/21/1996CA2161167A1 Dc offset correction circuit
06/20/1996WO1996019084A1 Method and system of data transmission and reception in a mobile station within a radio telecommunications system
06/20/1996WO1996019048A2 Method and apparatus for increasing receiver immunity to interference