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)
10/1999
10/19/1999US5969634 FM multiplexed broadcast receiving apparatus
10/19/1999US5969629 Wireless communication apparatus
10/19/1999US5969582 Impedance matching circuit for power amplifier
10/19/1999US5969575 Class A/F amplifier having second and third order harmonic input and output filtering and self bias distortion correction
10/19/1999US5969572 Linear power amplifier and method for canceling intermodulation distortion signals
10/19/1999US5969561 Integrated circuit having a variable RF resistor
10/19/1999US5969560 Switching circuit at high frequency with low insertion loss
10/18/1999CA2269308A1 Installation device for a vehicle
10/18/1999CA2265143A1 Technique for effectively rendering power amplification and control in wireless communications
10/14/1999WO1999052326A1 Low bit-rate spatial coding method and system
10/14/1999WO1999052319A1 Uncoordinated frequency hopping cellular system
10/14/1999WO1999052312A1 Power management system for a mobile unit by intelligent page monitoring
10/14/1999WO1999052252A1 Frame synchronisation in multi-carrier transmission systems
10/14/1999WO1999052249A1 A receiver for spread spectrum communications signals
10/14/1999WO1999052235A2 Method and system for determining the position of a mobile terminal in a cdma mobile communications system
10/14/1999WO1999052233A1 Adaptive reference pattern for spread spectrum detection
10/14/1999WO1999052221A1 Rf architecture for cellular dual-band telephones
10/14/1999WO1999052218A1 Method and apparatus for reducing power dissipation in radio transmitter
10/14/1999WO1999052214A2 Communications device
10/14/1999WO1999052172A1 Antenna switch
10/14/1999WO1999044283A3 A device for generating an ac amplitude-dependent indicator
10/14/1999WO1999041843A3 Transmitting/receiving station having impedance-matched receiving means for transponder answer signals
10/14/1999WO1999039447A3 Global tuner
10/14/1999DE19834467A1 Electronic instrument, especially car stereo
10/14/1999DE19816304A1 Telephone kiosk with radio network based public telephone
10/14/1999CA2722546A1 Filter for impulse response shortening, with addition spectral constraints, for multicarrier transmission
10/14/1999CA2327647A1 Method and system for determining the position of a mobile terminal in a cdma mobile communications system
10/13/1999EP0949823A1 Synchronization arrangement for a compressed video signal
10/13/1999EP0949812A1 Automatic gain control apparatus
10/13/1999EP0949772A2 Radio Data System (RDS) demodulator for receiving broadcast programmes carrying both Radio Data signals and ARI signals, comprising a digital filter means for obtaining a high attenuation of ARI signals
10/13/1999EP0949771A2 Satellite broadcast receiver system, retransmitting the received satellite programme on a vacant FM broadcast channel
10/13/1999EP0949769A1 CDMA adaptive antenna receiving apparatus and communication system
10/13/1999EP0949766A2 Multi-user receiving apparatus with parallel interference cancellation
10/13/1999EP0949765A2 Digital modulation system using extended code set
10/13/1999EP0949764A2 Method for calculating phase shift coefficients of an M sequence
10/13/1999EP0949763A2 Digital transmission system for transmitting scale factors
10/13/1999EP0949762A1 Audiovisual system with several devices some of which have more than one functional module
10/13/1999EP0949707A2 Dielectric filter, duplexer, and communication device
10/13/1999EP0949570A1 Digital matched filter
10/13/1999EP0948850A1 A digital communications system having an automatically selectable transmission rate
10/13/1999EP0948822A1 Belt clip holder with auxiliary battery
10/13/1999EP0948766A1 Method and apparatus for radiofrequency identification tags
10/13/1999EP0882333B1 Method and apparatus for signal demodulation and diversity combining of orthogonally modulated signals
10/13/1999EP0867076B1 Improvements relating to the processing of broadcasting signals
10/13/1999EP0806082B1 Wide frequency spectrum television tuner with single local oscillator
10/13/1999EP0806079A4 Transmission and reception of cpm spread-spectrum communications
10/13/1999EP0772928A4 Spread spectrum interference canceler system and method
10/13/1999EP0664187B1 Grinding tape and method of manufacturing the same
10/13/1999EP0649580B1 A digital frequency conversion and tuning scheme for microwave radio receivers and transmitters
10/13/1999CN2343718Y Multi-layered wallet type handset cover
10/13/1999CN1231791A Auxiliary component connector including microphone channel
10/13/1999CN1231790A Upper closure of a portable telephone and method of producing the upper closure of the portable telephone
10/13/1999CN1231782A Base station for a mobile radio telephone system
10/13/1999CN1231569A Method for realizing power control in mobile communication system
10/13/1999CN1231564A Tuning assembly for television
10/13/1999CN1231556A Card-reading machine connector
10/13/1999CN1231545A Matched filter bank
10/13/1999CN1231544A Equipment and method for controlling transmitting-power
10/13/1999CN1231543A Mixing amplifier
10/13/1999CN1231457A Electronic identification system
10/13/1999CN1045704C Method for processing digital auxiliary signal
10/13/1999CN1045703C 接收机 Receiver
10/13/1999CN1045671C Computer card type data receiver
10/12/1999US5966689 Adaptive filter and filtering method for low bit rate coding
10/12/1999US5966684 Method and apparatus for cancelling periodic electrical interference
10/12/1999US5966670 Method for transmitting a pilot signal, and a cellular radio system
10/12/1999US5966667 Dual mode communication device and method
10/12/1999US5966666 Multiple-band mobile transceiver having a smaller number of local oscillators
10/12/1999US5966665 Wireless communication system communicable among a base unit and a plurality of handsets
10/12/1999US5966648 RF circuit module and chassis including amplifier
10/12/1999US5966647 Portable receiver having pivotally connected case arranged to shield antenna
10/12/1999US5966646 Dual-band radio receiver
10/12/1999US5966645 Transmitter with low-level modulation and minimal harmonic emissions
10/12/1999US5966639 System and method for enhancing speech intelligibility utilizing wireless communication
10/12/1999US5966638 Receiving apparatus, signal demodulating method, antenna apparatus, receiving system and antenna direction adjusting method
10/12/1999US5966416 Verification of PN synchronization in a spread-spectrum communications receiver
10/12/1999US5966411 Multipath equalization using taps derived from a parallel correlator
10/12/1999US5966406 Method and apparatus for noise burst detection in signal processors
10/12/1999US5966403 Apparatus for use in decoding a composite signal
10/12/1999US5966402 Method and apparatus for detecting pilot signals and subscriber
10/12/1999US5966401 RF simplex spread spectrum receiver and method with symbol deinterleaving prior to bit estimating
10/12/1999US5966400 Receiver
10/12/1999US5966377 Spread spectrum communication system
10/12/1999US5966376 Apparatus and method for digital data transmission using orthogonal cyclic codes
10/12/1999US5966373 Waveform and frame structure for a fixed wireless loop synchronous CDMA communications system
10/12/1999US5966371 Method and system for reducing interbeam interference and multipath fading in bent-pipe satellite communications systems
10/12/1999US5966370 Method and signal evaluation means for determining the noise part in the signal mix of the reception signal of a CDMA reception means
10/12/1999US5966188 Decimation of baseband DTV signals prior to channel equalization in digital television signal receivers
10/12/1999US5966187 Program guide signal receiver and method thereof
10/12/1999US5966186 Digital broadcast receiving device capable of indicating a receiving signal strength or quality
10/12/1999US5966095 Adaptive array antenna receiving apparatus
10/12/1999US5964847 Mobile client computer interacting with docking device
10/07/1999WO1999051007A1 Portable multifunctional telephone
10/07/1999WO1999050990A1 An interleaving scheme for blocks in a packet switched system
10/07/1999WO1999050987A1 Transmitting/receiving device and transmitting/receiving method
10/07/1999WO1999050981A1 Digital audio broadcasting method using puncturable convolutional code
10/07/1999WO1999050980A2 Hybrid and all digital fm in-band-on-channel digital audio broadcasting method and system
10/07/1999WO1999050977A1 Channel communication device and method for cdma communication system
10/07/1999WO1999050973A1 Signal combining method in a base station of a cdma system
10/07/1999WO1999050968A1 A method and system for locating a subscriber unit in a system employing spread spectrum channel coding
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