Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › 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
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)
09/1998
09/24/1998WO1998042112A2 Communications terminal and method for data transmission between a communications network and a communications terminal
09/24/1998WO1998042092A2 Improved channel spacing for distortion reduction
09/24/1998WO1998042083A1 Audio coding method and apparatus
09/24/1998WO1998042082A2 Method and arrangement for forming an address
09/24/1998WO1998042081A1 Method and apparatus for compensating for click noise in an fm receiver
09/24/1998WO1998042080A1 Power interface circuit for a tdma transmitter
09/24/1998WO1998041959A1 Method and receiver for geographical selection of digitally coded messages
09/24/1998WO1998041435A1 Method and system for controlling train by radio
09/24/1998DE19712053A1 Portable communication device with biometric user identification
09/24/1998DE19711788A1 Vorrichtung zur Beeinflussung des Betriebszustandes eines elektronischen Geräts Device for influencing the operating state of an electronic device
09/24/1998DE19708626A1 Radio communications system using spread spectrum process
09/24/1998CA2284129A1 Method and apparatus for compensating for click noise in an fm receiver
09/24/1998CA2231306A1 Improved monolithic integrated circuit and antenna coil structure comprising a peripheral protective ring
09/23/1998EP0866616A1 Method of and apparatus for transmitting data
09/23/1998EP0866613A1 Preventing fraudulent access in a conditional access system
09/23/1998EP0866611A1 Broadcast receiving system comprising a computer and a decoder
09/23/1998EP0866609A1 Videorecorder
09/23/1998EP0866588A2 High data rate spread spectrum transceiver and associated methods
09/23/1998EP0866587A1 Apparatus for the suppression of parasitic jumps in DC offset, for a zero IF rad receiver, and corresponding method of suppression
09/23/1998EP0866580A2 Error rate estimator for PSK signals
09/23/1998EP0866567A2 Transmission/reception unit with bidirectional equalization
09/23/1998EP0865687A1 Direct sequence spread spectrum dsp system
09/23/1998EP0865686A1 A zero-if receiver
09/23/1998EP0865645A1 User selectable receiver addresses for wireless communication systems
09/23/1998CN1194083A Method and apparatus for communicating in a wireless communication system
09/23/1998CN1194071A Code division multiple access with clipping function
09/23/1998CN1194067A Method and system for subtractive multiple access interference cancellation
09/23/1998CN1193844A High frequency variable gain amplifier device and wireless communications terminal
09/23/1998CN1193824A Waveguide input apparatus of two orthogonally polarized waves including two probes attached to common board
09/23/1998CN1193797A Recording and/or reproducing apparatus
09/23/1998CN1039946C Progress controlled transmitting machine for circular power supply
09/22/1998USRE35901 Solid state isolation device using opto-isolators
09/22/1998US5812982 Digital data encoding apparatus and method thereof
09/22/1998US5812979 Synthesis filter for MPEG-2 audio decoder
09/22/1998US5812971 Enhanced joint stereo coding method using temporal envelope shaping
09/22/1998US5812943 High frequency band high temperature superconductor mixer antenna which allows a superconductor feed line to be used in a low frequency region
09/22/1998US5812942 Balanced differential radio receiver and method of operation
09/22/1998US5812941 Circuit for measuring output powers of channels and stabilizing radiofrequency output in system using linear power amplifier
09/22/1998US5812939 Switch semiconductor integrated circuit and communication terminal device
09/22/1998US5812936 Energy-efficient time-division radio that reduces the induction of baseband interference
09/22/1998US5812673 Noise suppressing device
09/22/1998US5812672 Method for reducing data in the transmission and/or storage of digital signals of several dependent channels
09/22/1998US5812660 Portable phone composite connector
09/22/1998US5812617 Synchronization and battery saving technique
09/22/1998US5812613 Bitwise soft decision symbol decoder
09/22/1998US5812612 Method and apparatus for transmitting an intermittent signal in a ratio communication system
09/22/1998US5812605 Multi-channel digital transceiver and method
09/22/1998US5812595 Waveform shaping circuit for a multiplexed information bus transmitter
09/22/1998US5812593 De-spread code phase detection apparatus in spread spectrum type receiver
09/22/1998US5812592 Spread spectrum communication apparatus utilizing a phase difference between two signals
09/22/1998US5812591 Dual conversion GPS frequency converter and frequency plan for same
09/22/1998US5812590 Frequency spreading clock modulation
09/22/1998US5812546 Demodulator for CDMA spread spectrum communication using multiple pn codes
09/22/1998US5812539 Dual mode satellite/cellular terminal
09/22/1998US5812522 Method of radio frequency communications
09/22/1998US5812293 A/V signal transmission remote control system
09/22/1998US5812219 System and method for transmitting picture or sound signals
09/22/1998US5812206 Broadcast receiver system
09/22/1998US5812094 Antenna coupler for a portable radiotelephone
09/22/1998US5812093 Antenna assembly for a wireless-communication device
09/22/1998US5812081 Time domain radio transmission system
09/22/1998US5812066 Antenna tuning control circuit
09/22/1998US5812008 Logarithmic converter
09/22/1998US5810168 Tool box with integral AM/FM radio and power outlets
09/22/1998CA2138029C Apparatus and method for varying the coupling of a radio frequency signal
09/22/1998CA2127079C Antenna apparatus having individual transmitting and receiving antenna elements for different frequencies
09/22/1998CA2124718C Sequential amplifier
09/22/1998CA2120679C Dual mode amplifier network for radiotelephone
09/22/1998CA2103147C Process for finding the overall monitoring threshold during a bit-rate-reducing source coding
09/22/1998CA2100154C Switched signal processing circuit
09/17/1998WO1998040991A1 Phase-locked loop with continuously adjustable bandwith
09/17/1998WO1998040972A2 Code division multiple access communication system
09/17/1998WO1998040971A1 Multichannel viterbi decoder
09/17/1998WO1998040970A1 An improved cdma receiver
09/17/1998WO1998040968A2 A frequency conversion circuit
09/17/1998WO1998034402A3 Method and apparatus for line or frame-synchronous frequency hopping of video transmissions
09/17/1998WO1998032263A3 High-data-rate supplemental channel for CDMA telecommunications system
09/17/1998DE19811066A1 Information signal distribution apparatus for CDMA system
09/17/1998DE19811039A1 Verfahren und Vorrichtungen zum Codieren und Decodieren von Audiosignalen Methods and apparatuses for encoding and decoding of audio signals
09/17/1998DE19710863A1 Verfahren und Empfänger zur geographischen Selektion von digital codierten Meldungen Method and receiver for geographical selection of digitally coded messages
09/17/1998DE19710838A1 Mobile telephone with integrated accumulator charging unit
09/16/1998EP0865203A2 Data reception device and method
09/16/1998EP0865182A2 Method and apparatus for orthogonal frequency conversion
09/16/1998EP0865175A2 Radio receiver capable of receiving signals from a plurality of trnsmission systyms such as Digital Audio Broadcast (DAB) and Radio Data System (RDS)
09/16/1998EP0865170A1 Device for the acoustic reproduction of wirelessly transmitted audio informations of a HiFi-installation
09/16/1998EP0865169A2 Antenna mounted dixplexer
09/16/1998EP0865168A2 Decentralized communications system
09/16/1998EP0865167A2 Power saving scheme for a digital wireless communications terminal
09/16/1998EP0865165A2 Radio apparatus
09/16/1998EP0864212A1 A method and system for providing synchronization in a stream of messages and a transmitter and a receiver for use in such a system
09/16/1998EP0864209A1 Multi-function interactive communications system with circularly/elliptically polarized signal transmission and reception
09/16/1998EP0864207A1 Coplanar mixer assembly
09/16/1998EP0864206A1 Method and non-linear filter for reducing co-channel interference
09/16/1998EP0864186A1 Microwave transceiver/antenna system with adjustable mounting and alignment mechanism
09/16/1998CN2291758Y Special carrier remote controller
09/16/1998CN2291757Y Broadband double-channel high sensltive auto tracking receiver
09/16/1998CN2291756Y Low temp. resisting ultra-high-frequency transmitter
09/16/1998CN1193446A Multi-media receiver and system therefor
09/16/1998CN1193423A 振荡器 Oscillator
09/16/1998CN1193241A Navigation maong grouped television channels
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