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)
07/1999
07/15/1999WO1999022461A3 Method and receiver for transmitting data in a communication system
07/15/1999WO1999022460A3 Method and device at stereo acoustic echo cancellation
07/15/1999WO1999022456A3 Arrangement and method relating to radio communication
07/15/1999DE19856061A1 Emergency call arrangement with telephone
07/15/1999CA2317751A1 Method and apparatus for increasing spectral efficiency of cdma systems using direct sequence spread spectrum signals
07/14/1999EP0929197A2 Broadcast-program viewing method and system
07/14/1999EP0929161A2 A multi-carrier CDMA transmission system with frequency and space diversity
07/14/1999EP0929159A2 Data processor having radio communication function
07/14/1999EP0929151A2 Filter
07/14/1999EP0929149A1 Receiver for data transmission
07/14/1999EP0929146A1 Tuner for satellite broadcasting receiver
07/14/1999EP0929121A1 Antenna for mobile communcations device
07/14/1999EP0928550A1 Configurable digital wireless and wired communications system architecture
07/14/1999EP0928542A1 Compatible transmission and reception of operational signals to be processed by a receiver
07/14/1999EP0928540A4 Multiple modulation format television signal receie system
07/14/1999EP0928540A1 Multiple modulation format television signal receiver system
07/14/1999EP0928531A1 Auxiliary component connector including microphone channel
07/14/1999EP0639313B1 A method of increasing interference diversity in an fdma/tdma-based cellular system and cellular system
07/14/1999CN1223042A Method for controlling communication of mobile equipment and mobile equipment
07/14/1999CN1223041A Code-rate increased compressed mode DS-CDMA system and methods
07/14/1999CN1223032A Program selection system for digital TV receiver
07/14/1999CN1222997A Audio signal coding and decoding method and audio signal coder and decoder
07/14/1999CN1222819A Portable communication apparatus
07/14/1999CN1222794A Transmission rate decision method and device
07/14/1999CN1222793A Holder for electronic device
07/14/1999CN1222792A Radio telecommunication apparatus
07/14/1999CN1044184C Noiseless audio compressor-expander
07/13/1999US5924064 Variable length coding using a plurality of region bit allocation patterns
07/13/1999US5924044 Modular communication device and method of providing communications therewith
07/13/1999US5924024 Method and circuit for achieving frequency conversion
07/13/1999US5924022 RF repeater for TDMA mobile telephone systems
07/13/1999US5924021 Frequency conversion circuit and method for millimeter wave radio
07/13/1999US5924019 Radio frequency switch including voltage multiplier
07/13/1999US5924018 Analog microwave communication system having a microwave hop converted to a new operating frequency and method
07/13/1999US5923765 Dual function portable stereo system
07/13/1999US5923702 Frequency hopping cellular LAN system
07/13/1999US5923701 Spread spectrum pulse position modulation system
07/13/1999US5923700 Adaptive weight update method and system for a discrete multitone spread spectrum communications system
07/13/1999US5923668 Apparatus and method of establishing a downlink communication path in a wireless telecommunications system
07/13/1999US5923647 Circulator usage in time division duplex radios
07/13/1999US5923624 Radio receiver including a recording unit for audio data
07/13/1999US5923454 Modem method and device for indicating received signal strength and presence for intensity modulated binary-coded wireless data packets with reduced recovery time
07/13/1999US5923268 Universal type remote controller
07/13/1999US5923265 Portable receiver comprising a manually actuable control device
07/13/1999US5922037 Wireless system for diagnosing examination and programming of vehicular control systems and method therefor
07/13/1999CA2172940C Power supply circuit having an auxiliary power source for compensating for main power drop
07/13/1999CA2158115C Method and apparatus for increasing spectrum efficiency
07/13/1999CA2065758C Dual port oscillator for two-stage direct conversion receiver
07/12/1999CA2258056A1 Rf communications system operable in the presence of a repetitive interference source and related methods
07/08/1999WO1999034625A1 Method and arrangement in radio communication networks
07/08/1999WO1999034575A1 Hand-worn radiotelephone apparatus
07/08/1999WO1999034564A1 Portable internet-enabled controller and information browser for consumer devices
07/08/1999WO1999034546A1 Rake receiver for direct spreading cdma transmission
07/08/1999WO1999034530A1 A system and method for synchronizing acquisition for a code modulated communication system
07/08/1999WO1999034529A2 Apparatus and method for code tracking in an is-95 spread spectrum communication system
07/08/1999WO1999034528A2 Apparatus and method for locking onto a pseudo-noise code in an is-95 spread spectrum communication system
07/08/1999WO1999034527A1 Method and apparatus for estimation of coupling parameters in a transform coder for high quality audio
07/08/1999WO1999034526A1 A transmitter and a method for transmitting data
07/08/1999WO1999034525A1 Pda antenna system
07/08/1999WO1999034524A1 Mobile radio communication device with antenna capable of taking up different positions
07/08/1999WO1999023844A3 Method and apparatus for high rate packet data transmission
07/08/1999WO1998059433A3 Method and apparatus for downlink power control in macro diversity radio systems
07/08/1999DE19817302C1 Mounting device for e.g. mobile phone
07/07/1999EP0928128A1 Soldering of liquid crystal display modules on the edge of printed circuit boards
07/07/1999EP0928087A1 Devices for switching over electrical connections
07/07/1999EP0928084A2 Universal modem for digital video, audio and data communications
07/07/1999EP0928073A2 Remote control transmission apparatus
07/07/1999EP0928072A2 Transmitter linearization feedback
07/07/1999EP0928039A1 Band elimination dielectric filter, dielectric duplexer and communication device using the same
07/07/1999EP0928038A1 Two-frequency switch, device using two-frequency antenna in common, and mobile radio communication equipment for two-frequency bands using the device
07/07/1999EP0927933A2 Method and apparatus for remote diagnostics
07/07/1999EP0927471A1 Hybrid circuit
07/07/1999EP0927468A2 Method to store information on a chip card and device to carry out said method
07/07/1999EP0927466A1 Method and circuit arrangement for the power supply of electrical functional units
07/07/1999EP0927438A1 Antenna arrangement which can be tuned capacitively
07/07/1999EP0850512B1 Radio apparatus with several frequency ranges
07/07/1999EP0818037B1 Method and apparatus for efficient implementation of single-sideband filter banks providing accurate measures of spectral magnitude and phase
07/07/1999EP0701753A4 A communication method for an adaptive direct sequence cdma communication system
07/07/1999EP0624866B1 Method for frequency analysis
07/07/1999CN1222276A Digital radio frequency interference canceller
07/07/1999CN1222269A Radio frequency noise canceller
07/07/1999CN1222268A Transmit sequencing
07/07/1999CN1222267A DSP implementation of cellular base station receiver
07/07/1999CN1222045A Telephone system comprising base station and at least one handset, method implemented in such system, subscriber station and base station suitable for such system
07/07/1999CN1222044A Radio selective-calling receiver
07/07/1999CN1222011A Device and method for generating spread spectrum signals
07/07/1999CN1222010A Reducing peak to average ratio transmit signal by intentional phase rotating among composed signals
07/07/1999CN1044065C Radio paging receiver
07/06/1999US5920842 Signal synchronization
07/06/1999US5920832 CELP coding with two-stage search over displaced segments of a one-dimensional codebook
07/06/1999US5920811 Superconductor mixer and phase control method therefor
07/06/1999US5920807 ACARS/VHF transceiver interface unit (AVIU)
07/06/1999US5920632 Apparatus for continuously switching a demodulator from stereo operation to mono operation, and vice versa
07/06/1999US5920595 Inter-cross wave compensation method and apparatus performing frequency conversion on signed not detected by a demodulating unit
07/06/1999US5920591 Spreading code generator and CDMA communication system
07/06/1999US5920590 Variable bandwidth spread spectrum device
07/06/1999US5920589 Direct sequence spread spectrum DSP system
07/06/1999US5920555 Pilot assisted direct sequence spread spectrum synchronization apparatus
07/06/1999US5920554 Mobile station apparatus used in CDMA cellular radio system and spread code synchronization method therefor
07/06/1999US5920551 Channel structure with burst pilot in reverse link