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)
04/1998
04/01/1998EP0833537A2 A mobile telephone apparatus with power saving
04/01/1998EP0833511A2 A broadcasting system and an information broadcast receiving terminal apparatus used therein
04/01/1998EP0833475A2 Control of modulation process based on detected error rate
04/01/1998EP0833468A2 Receiver for receiving mulliplexed broadcast programmes, comprising audio data and supplementary broadcast data
04/01/1998EP0833466A2 Isolation apparatus for electronic equipment
04/01/1998EP0833465A2 Wireless communication system and method comprising a transreceiver and a plurality of remote wireless communication devices
04/01/1998EP0833457A2 CDMA packet communication
04/01/1998EP0833456A2 Spread spectrum communication system
04/01/1998EP0833455A2 Exchangeable hardware module for radiotelephone
04/01/1998EP0833448A2 Frequency adjusting method for use with digital receiver and frequency adjusting circuit thereof
04/01/1998EP0833447A2 Tuning circuit
04/01/1998EP0832521A1 Process for encoding an audio signal digitalised at a low sampling frequency
04/01/1998EP0832519A1 Encoding apparatus for encoding a plurality of information signals
04/01/1998EP0685129B1 Method and system for the dynamic modification of control parameters in a transmitter power control system
04/01/1998CN1178051A Method for frame quality detection and receiver
04/01/1998CN1177904A Improved isolation device for electronic equipment
04/01/1998CN1177897A Communication device limiting consumption of cell power supply and control method thereof
04/01/1998CN1177896A Communication device suitable to clips in different size
04/01/1998CN1177890A Pager of removing cross-modulation
04/01/1998CN1177869A Remote control device with voice-sound identification function
04/01/1998CN1177868A Transmitting-power tracing device adopting business information
04/01/1998CN1177789A Local frequency correction
03/1998
03/31/1998US5734976 Micro-receiver for receiving a high frequency frequency-modulated or phase-modulated signal
03/31/1998US5734974 For receiving an input signal and generating an output signal
03/31/1998US5734973 Radio receiver for selectively receiving signals at frequencies of previously stored broadcast stations
03/31/1998US5734971 Adaptive system for determining radio frequency at vehicle start-up
03/31/1998US5734970 Single oscillator transceiver with multiple frequency converters
03/31/1998US5734969 Radio communication method and apparatus which adds an interrupt enable synchronizing signal to a compressed voice signal in place of a synchronizing A signal
03/31/1998US5734967 Method and apparatus for reducing self interference in a communication system
03/31/1998US5734966 Wireless communication system for adapting to frequency drift
03/31/1998US5734965 On-board unit for transponder operation
03/31/1998US5734853 Set top terminal for cable television delivery systems
03/31/1998US5734792 Enhancement method for a coarse quantizer in the ATRAC
03/31/1998US5734780 Recording/reproducing device which receives an FM multiplexed signal comprising a subcarrier or a darc signal and outputs traffic information after detecting an intermission
03/31/1998US5734716 Magnetically driven vertically correcting antenna for portable telephones
03/31/1998US5734703 A modem
03/31/1998US5734686 Selective power supply control for battery saving effectively
03/31/1998US5734676 Apparatus, method and article of manufacture for carrier frequency compensation in a FM radio receiver
03/31/1998US5734674 Pseudorandom-noise receiver having automatic switching between regular and anti-jamming modes
03/31/1998US5734657 Encoding and decoding system using masking characteristics of channels for bit allocation
03/31/1998US5734647 CDMA communication system in which interference removing capability is improved
03/31/1998US5734487 Computer system incorporating an infrared link for reduced interference communication with a radio transceiver
03/31/1998US5734444 Broadcast receiving apparatus that automatically records frequency watched programs
03/31/1998US5734332 Identification device
03/31/1998US5734320 Emergency warning gear having a multitude of functions
03/31/1998US5734305 Stepwise switched filter
03/31/1998CA2121002C Apparatus and method for determining a point in time for detecting a sampled signal in a receiver
03/26/1998WO1998012867A2 An improved audio-output for hands-free portable telephone accessory
03/26/1998WO1998012831A1 Two-phase/four-phase modulated comb-shaped spread spectrum communication system
03/26/1998WO1998012829A1 Method and apparatus for optimizing a medium access control protocol
03/26/1998WO1998012825A2 Method for storing information on a chip card and device, especially a car radio, for implementing said method
03/26/1998WO1998012822A1 Method and circuit arrangement for the power supply of electrical functional units
03/26/1998WO1998012821A1 Interference detection circuit having amplitude frequency domain defined discrimination
03/26/1998WO1998012811A1 Method of selecting a transmit frequency
03/26/1998WO1998012788A1 An apparatus for selectively activating a plurality of devices
03/26/1998WO1998012773A1 Antenna arrangement which can be tuned capacitively
03/26/1998DE19639083A1 Wireless transmission of information using multichannel transmitter
03/26/1998DE19638597A1 Antennenanordnung Antenna array
03/26/1998CA2265478A1 Method and apparatus for optimizing a medium access control protocol
03/25/1998EP0831666A2 Telecommunication device, in particular radio-mobile apparatus
03/25/1998EP0831618A2 Improvements in or relating to information/data transfer systems
03/25/1998EP0831614A2 RF transponder with error detection and correction
03/25/1998EP0831608A2 Programmable radio subscription system for receiving selectively defined information
03/25/1998EP0831607A2 Wireless receiving system, in particular broadcast receiving system for receiving supplementary multiplexed broadcast information, using a double tuner system
03/25/1998EP0831596A2 Method and circuit arrangement for coding or decoding audio signals
03/25/1998EP0831595A2 Digital modulated signal receiver
03/25/1998EP0831594A2 Frequency cancelling system and method
03/25/1998EP0831584A1 Amplifier system
03/25/1998EP0831583A1 Microwave mixing circuit and down-converter using the same
03/25/1998EP0830778A2 Portable computer and telecommunications equipment
03/25/1998EP0830775A1 Control message transmission in telecommunications systems
03/25/1998EP0830770A1 Method and apparatus for determining coding rate in a wireless communication system
03/25/1998EP0830764A1 A control system for a wireless telecommunications system
03/25/1998EP0830763A1 Subscriber terminal for a wireless telecommunications system
03/25/1998EP0830759A1 Apparatus and method of frame aligning information in a wireless telecommunications system
03/25/1998EP0830755A1 Fast locking mechanism for channelized ultrawide-band communications
03/25/1998EP0830751A1 Apparatus and method of controlling transmitting power in a subscriber terminal of a wireless telecommunications system
03/25/1998EP0830750A1 Apparatus and method of transmitting and receiving information in a wireless telecommunications system
03/25/1998EP0830749A1 Apparatus and method of synchronizing a transmitter in a subscriber terminal of a wireless telecommunications system
03/25/1998EP0830748A1 Apparatus and method of establishing a downlink communication path in a wireless telecommunications system
03/25/1998EP0830747A1 Baseband processing for cellular modems implemented by dsp
03/25/1998EP0830746A1 Electronic metering equipment system
03/25/1998EP0830745A1 Audio equipment with connectors for telecommunications modules
03/25/1998EP0830744A1 Electronic equipment audio system
03/25/1998EP0830743A1 Modular unit headset
03/25/1998EP0830727A1 Cooling device for a high-frequency receiver
03/25/1998EP0830616A1 Mitigation of multipath effects in global positioning system receivers
03/25/1998EP0830105A1 Identification and locating transponder for implants
03/25/1998EP0830076A1 Clothes hanger
03/25/1998EP0667994B1 Method and arrangement for controlling the operation of a high-frequency power amplifier
03/25/1998CN2277148Y Folding buckle device for communication appts.
03/25/1998CN2277147Y Calling device with radio function
03/25/1998CN2277146Y Automatic broadcasting device of pager
03/25/1998CN1177428A Improved channel estimation in communication system
03/25/1998CN1177269A Apparatus and method for identifying type and brand of battery for portable device
03/25/1998CN1177265A Radio receiver for selective calling
03/25/1998CN1177255A High frequency device with radio-frequency modulator television modulator
03/25/1998CN1177242A Information receiving system and information receiving method using such system
03/25/1998CN1177238A System for reducing interference to electronic devices caused by discontinuous transmission radio transmitters
03/25/1998CN1037886C Adaptive radio receiver controller method and apparaus
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