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)
12/1999
12/22/1999CN1239371A Communication equipment, charging terminal structure, and isolating switch
12/22/1999CN1239369A Device and method for radio terminal with handsfree function
12/22/1999CN1239368A Dynamic bit allocation apparatus and method for audio coding
12/22/1999CN1239366A Modulation apparatus and method using zero-crossing detection
12/22/1999CN1239361A Route estimating device and communication terminal device
12/22/1999CN1239359A Digital broadcasting receiver and its receiving method
12/22/1999CN1239358A Finger receiver unit capable of tracking quick variation of delay profile
12/22/1999CN1239357A 接收机 Receiver
12/22/1999CN1047707C FSK key control receiver
12/22/1999CN1047667C Synchronised electronic identification system
12/21/1999US6006117 Radio telephone with separate antenna for stand-by mode
12/21/1999US6006116 Time-division radio that is powered by a low-power energy source
12/21/1999US6006115 Wireless headphones for entertainment and telephonic communication
12/21/1999US6006112 Transceiver with RF loopback and downlink frequency scanning
12/21/1999US6006108 Digital audio processing in a dual-mode telephone
12/21/1999US6006106 Method for automatic transceiver selection in a mobile multiple RF transceiver apparatus
12/21/1999US6006083 Tone detection
12/21/1999US6006082 FM demodulating device using an extended kalman filter
12/21/1999US6006081 Communications receivers
12/21/1999US6006080 Receiving mixer circuit for mobile radio transceiver designed to operate with multiple modulation modes and multiple frequency bands
12/21/1999US6006079 Radio having a fast adapting direct conversion receiver
12/21/1999US6006076 Mobile FM-multiplex-broadcast receiving device
12/21/1999US6006075 Method and apparatus for transmitting communication signals using transmission space diversity and frequency diversity
12/21/1999US6006072 Method and apparatus for interference cancellation
12/21/1999US6006071 RF communications system operable in the presence of a repetitive interference source and related methods
12/21/1999US6006070 Multi-function interactive communications system with circularly/elliptically polarized signal transmission and reception
12/21/1999US6005953 Circuit arrangement for improving the signal-to-noise ratio
12/21/1999US6005903 Digital correlator
12/21/1999US6005900 Wideband channelization using subsampled discrete fourier transforms
12/21/1999US6005898 Multichannel viterbi decoder
12/21/1999US6005887 Despreading of direct sequence spread spectrum communications signals
12/21/1999US6005886 Synchronization-free spread-spectrum demodulator
12/21/1999US6005885 Methodology for discontinuous radio reception utilizing embedded frame length words
12/21/1999US6005883 Direct sequence network and method using PN sequence selection to represent data
12/21/1999US6005640 Multiple modulation format television signal receiver system
12/21/1999US6005529 Antenna assembly with relocatable antenna for mobile transceiver
12/21/1999US6005525 Antenna arrangement for small-sized radio communication devices
12/21/1999US6005522 Antenna device with two radiating elements having an adjustable phase difference between the radiating elements
12/21/1999US6005506 Receiver with sigma-delta analog-to-digital converter for sampling a received signal
12/21/1999US6005490 Bidirectional remote control apparatus
12/21/1999US6005455 Integrated filter
12/21/1999US6005443 Phase locked loop frequency synthesizer for multi-band application
12/21/1999US6005441 Amplifying circuit
12/21/1999CA2188360C Apparatus and method for discharging and charging a multiple battery arrangement
12/21/1999CA2157624C Multi-component antenna and method therefor
12/21/1999CA2157623C Method and apparatus for dynamic radio communication menu
12/21/1999CA2155388C Electronic device having an rf circuit integrated into a movable housing element
12/21/1999CA2147921C Dual-function double balanced mixer circuit
12/16/1999WO1999065217A1 A method for separating narrowband and broadband services on a transmission link and a splitter element
12/16/1999WO1999065200A2 Procedure and device for transmitting information by radio
12/16/1999WO1999065199A1 Method and apparatus for compensation of electro-magnetic distortion
12/16/1999WO1999065189A1 Method for programming resource actions in a domestic communication network
12/16/1999WO1999065173A1 Canceller for jamming wave by interference
12/16/1999WO1999065167A2 Method and apparatus for identifying the source of a digital signal
12/16/1999WO1999065157A2 Pilot strength measurement and multipath delay searcher for cdma receiver
12/16/1999WO1999065155A1 Frequency-hopping in a bandwidth-on-demand system
12/16/1999WO1999065154A1 One-bit correlator rake receiver
12/16/1999WO1999065153A1 Method for separating a plurality of superimposed coded user signals
12/16/1999WO1999065152A1 Device for a communications system and corresponding communications system
12/16/1999WO1999065151A1 Auto pc compliant audio system
12/16/1999WO1999065150A1 Broadcasting receiver
12/16/1999WO1999065149A1 Receiver and method of reception
12/16/1999WO1999065148A1 Channel coding device and method for rate matching
12/16/1999WO1999065143A1 Remote control for an audio signal playing apparatus
12/16/1999WO1999065142A2 Mixer oscillator stage
12/16/1999WO1999065019A2 Parallel coded spread spectrum communication for data storage
12/16/1999WO1999064974A1 A monitoring system
12/16/1999WO1999050679A3 Low complexity frequency estimator and interference cancellation method and device
12/16/1999DE19926736A1 Communication unit with battery switch for operating contact breaker
12/16/1999DE19826036A1 Verfahren zur Trennung von mehreren überlagerten codierten Nutzersignalen A process for the separation of a plurality of superimposed coded user signals
12/16/1999DE19825091A1 Rundfunkempfänger Broadcast radio receiver
12/16/1999DE19823049A1 Unterdrückung von Oberschwingungen in Doppelband-Mobilfunktelefonen Suppression of harmonics in dual band mobile phones
12/15/1999EP0964534A1 DECT data transmitting and receiving apparatus using speech frame
12/15/1999EP0964530A1 Radio communications receiver and interference cancellation method
12/15/1999EP0964529A2 Channel estimation apparatus and communication terminal apparatus
12/15/1999EP0964528A2 Baseband signal processor capable of dealing with multirate and multiuser communication with small structure
12/15/1999EP0964514A1 Radio receiver using location-determining information
12/15/1999EP0964511A1 Low-noise amplifier
12/15/1999EP0964477A1 Antenna sharing device for dual frequency band
12/15/1999EP0964380A2 Moving body detection system
12/15/1999EP0963684A1 Method and corresponding system for influencing the stereo channel separation of an audiosignal
12/15/1999EP0963667A1 Microphone attachment for electrically connecting the microphone and audio circuit of a flip-type radio phone with a mechanical contact device
12/15/1999EP0963627A2 Selective call device and method for battery saving during information services
12/15/1999EP0963626A2 Apparatus in a communication system
12/15/1999EP0922328A4 Multi-band audio compressor with look-ahead clipper
12/15/1999EP0809894A4 Portable handset for tdd/fdd wireless communication
12/15/1999EP0753193A4 Improvements in an apparatus and method of use of radiofrequency identification tags
12/15/1999EP0734615B1 Transmitters for radio telephone base stations
12/15/1999EP0700611B1 Process for obtaining a signal indicating a synchronisation error between a pseudo-random signal sequence from a transmitter and a reference pseudo-random signal sequence from a receiver
12/15/1999CN1238870A Receiver for data broadcasting system
12/15/1999CN1238869A Receiving device for radio communication system for reception of subscriber signals via air interface
12/15/1999CN1238865A Method and apparatus for transmitting and receiving information as power hopped direct sequence spread spectrum signal
12/15/1999CN1238864A Homodyne cellular base station
12/15/1999CN1238862A Multiple preamplifier circuit for TV. tuner
12/15/1999CN1238652A Mobile radio communication equipment
12/15/1999CN1238651A CDMA mobile communication system and transmission power control method for the same
12/15/1999CN1238629A Mobile communications devices with camera
12/15/1999CN1238622A Method and device for digitally demodulating frequency modulated signal
12/15/1999CN1238616A Method for synchronising test call in CDMA cellular system
12/15/1999CN1238614A Baseband processor capable of dealing with multirate and multiuser communication with small structure
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