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)
11/1997
11/12/1997	CN1164785A Spectrum spread communication system
11/12/1997	CN1164784A Receiving apparatus for spectrum spread system
11/12/1997	CN1164782A Integrated receiver
11/12/1997	CN1164781A Improvements in or relating to radio receivers
11/12/1997	CN1164728A Compressed audio signal processing
11/11/1997	US5687285 In an input speech signal
11/11/1997	US5687282 Method and apparatus for determining a masked threshold
11/11/1997	US5687234 Mobile telephone charger
11/11/1997	US5687198 Channel estimation in a communication system
11/11/1997	US5687195 Digital automatic gain controller for satellite transponder
11/11/1997	US5687191 Post-compression hidden data transport
11/11/1997	US5687190 Method for recovering a digital signal
11/11/1997	US5687169 Full duplex ultrawide-band communication system and method
11/11/1997	US5687166 Modulation system for spread spectrum CDMA communication
11/11/1997	US5687162 DS/CDMA receiver having an interference cancelling function capable of asssuring a desired reception quality in a narrow-band DS/CDMA
11/11/1997	US5686920 Transponder maintenance mode method
11/11/1997	US5686903 Trainable RF transceiver
11/11/1997	US5686870 Mixer
11/11/1997	US5685299 For the improvement of physiological signals
11/06/1997	WO1997041717A1 Telephone radiation shield
11/06/1997	WO1997041648A1 Process for operating a network
11/06/1997	WO1997041646A1 Radio system using satellite timing reference signals
11/06/1997	WO1997041645A1 Multiple user communication system, device and method with overlapping uplink carrier spectra
11/06/1997	WO1997041644A1 Method and apparatus for mixing signals
11/06/1997	WO1997041643A1 Adaptive radio receiver apparatus
11/06/1997	WO1997041642A1 Transmitter combiner arrangement
11/06/1997	WO1997041638A1 System and method for effects processing on audio subband data
11/06/1997	WO1997034381A3 Method and apparatus for antenna realignment in a mobile radiotelephone using an injected audio signal
11/06/1997	DE19715956A1 Eingangsschaltung für einen Fernsehtuner Input circuit for a television tuner
11/06/1997	DE19713929A1 Transmitting and receiving antenna system
11/06/1997	DE19707749A1 Radio transceiver, e.g. cellular telephone - generates frequency spreading signal to modulate clock reference frequency when received signal includes harmonic of clock signal
11/06/1997	DE19616828A1 Received mixed signal separation method esp. for mobile telephone system using different or common channels for different subscriber signals
11/06/1997	DE19616430A1 Verfahren zum Betreiben eines Netzes A method of operating a network
11/05/1997	EP0805573A2 Method for measuring modulation parameters of digital quadrature-modulated signal
11/05/1997	EP0805565A2 Spread spectrum communications system for high-speed communications
11/05/1997	EP0805564A2 Digital encoder with dynamic quantization bit allocation
11/05/1997	EP0805563A1 Portable radio telephone
11/05/1997	EP0805562A2 Radio-frequency hearing aid protector for wireless communications products
11/05/1997	EP0805561A2 A method for implementing a direct conversion receiver with a six-port junction
11/05/1997	EP0805507A1 Receive and/or transmit device for radio messages with an inductive and capacitive antenna
11/05/1997	EP0804837A1 Process for transmitting spoken information
11/05/1997	EP0804836A1 Method and apparatus for the formatting of data for transmission
11/05/1997	EP0804833A1 Frequency synchronized bidirectional radio system
11/05/1997	EP0569512A4 Packet transmission system and method utilizing both a data bus and dedicated control lines
11/05/1997	CN2266842Y Folding movable telephone leather cover with improved structure
11/05/1997	CN1164311A Pilot signal researching technique for cellular communications system
11/05/1997	CN1164303A Channel hopping in radio communications system
11/05/1997	CN1164151A Synchronizer for receiver of spectrum spreading communication apparatus
11/05/1997	CN1164148A Battery latch
11/04/1997	USRE35650 Spread spectrum communications system
11/04/1997	US5684923 Methods and apparatus for compressing and quantizing signals
11/04/1997	US5684922 Encoding and decoding apparatus causing no deterioration of sound quality even when sine-wave signal is encoded
11/04/1997	US5684830 Noise removing device and data communication apparatus using the same
11/04/1997	US5684829 Digital signal processing coding and decoding system
11/04/1997	US5684828 Wireless data module with two separate transmitter control outputs
11/04/1997	US5684794 Validation of subscriber signals in a cellular radio network
11/04/1997	US5684793 Base station receiver equipment
11/04/1997	US5684492 Antenna device having a band pass filter
11/04/1997	US5684471 IR remote control transmitter with power saving feature
11/04/1997	US5684384 Apparatus and method for discharging and charging a multiple battery arrangement
11/04/1997	US5683432 Adaptive, performance-optimizing communication system for communicating with an implanted medical device
11/04/1997	CA2097692C Method and apparatus for cancelling spread-spectrum noise
11/04/1997	CA2078406C Quadrature modulator for tdma/tdd radio communication apparatus.
11/03/1997	CA2203976A1 Portable device for receiving and/or transmitting radio-transmitted messages comprising an inductive capacitive antenna
10/1997
10/30/1997	WO1997040655A1 Electromagnetic shield for a radiotelephone
10/30/1997	WO1997040609A1 Mitigation of radio frequency interference in multi-carrier transmission systems
10/30/1997	WO1997040608A1 Digital radio frequency interference canceller
10/30/1997	WO1997040593A1 Code-rate increased compressed mode ds-cdma systems and methods
10/30/1997	WO1997040592A1 Multi-code compressed mode ds-cdma systems and methods
10/30/1997	WO1997040591A1 Single two-way radio having multiple subchannels
10/30/1997	WO1997040590A1 Distribution of radio-frequency signals through low bandwidth infrastructures
10/30/1997	WO1997040589A1 Method and apparatus for interference decorrelation in time and space
10/30/1997	WO1997040588A1 Method and apparatus for interference rejection with different beams, polarizations, and phase references
10/30/1997	WO1997040587A1 Radio frequency noise canceller
10/30/1997	WO1997040586A1 Transmit sequencing
10/30/1997	WO1997040585A1 High-frequency signal receiver
10/30/1997	WO1997040584A1 Hybrid analog/digital method and apparatus for controlling the transmission power level of a radio transceiver
10/30/1997	WO1997040577A1 Process for controlling the power of the transmission amplifier of radio equipment
10/30/1997	WO1997040398A2 Spread spectrum receiver with multi-bit correlator
10/30/1997	WO1997033379A3 Circuit arrangement with a filter quadripole
10/30/1997	WO1997032391A3 Receiver with digital processing of a phase-splitted input signal
10/30/1997	DE19710490A1 Signal frequency converter circuit
10/30/1997	DE19705752A1 Broadcasting signal receiving apparatus and pulse counting demodulators
10/30/1997	DE19704916A1 Vehicle driver information system
10/30/1997	CA2252903A1 Spread spectrum receiver with multi-bit correlator
10/30/1997	CA2252480A1 Single two-way radio having multiple subchannels
10/30/1997	CA2252382A1 Multi-code compressed mode ds-cdma systems and methods
10/30/1997	CA2252101A1 Method and apparatus for interference decorrelation in time and space
10/30/1997	CA2251946A1 Digital radio frequency interference canceller
10/30/1997	CA2251843A1 Method and apparatus for interference rejection with different beams, polarizations, and phase references
10/29/1997	EP0804000A2 RDS signal detection device
10/29/1997	EP0803998A2 Demodulation apparatus for data carried by a carrier wave
10/29/1997	EP0803997A2 A method and arrangement for producing a clock frequency in a radio device
10/29/1997	EP0803991A1 Method for optimising radio communication between a base station and a mobile
10/29/1997	EP0803989A1 Method and apparatus for encoding of a digitalized audio signal
10/29/1997	EP0803987A2 Method for selecting a remote control command set
10/29/1997	EP0803986A1 Liquid cooling system for high power solid state am transmitter
10/29/1997	EP0803984A2 Phase-locked loops
10/29/1997	EP0803973A1 Linear power amplifier with automatic gate/base bias control for optimum efficiency
10/29/1997	EP0803929A1 Loaded antenna

1 ... 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 ... 1886