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)
11/1995
11/02/1995EP0679297A1 Device and method for tuning a band-pass filter
11/02/1995EP0656161A4 Apparatus and method for frequency translation in a communication device.
11/02/1995EP0600960B1 Frequency-modulated transceiver
11/02/1995DE4415090A1 Automatic low power emergency call transmitter
11/01/1995CN2211675Y Photoelectric charger for traveling telephone set
11/01/1995CN2211674Y Frequency modulating power amplifier
10/1995
10/31/1995US5463660 Block-spreading code-division multiple-access demodulator with improved interference cancellation
10/31/1995US5463659 Apparatus and method of configuring a cordless telephone for operating in a frequency hopping system
10/31/1995US5463656 System for conducting video communications over satellite communication link with aircraft having physically compact, effectively conformal, phased array antenna
10/31/1995US5463619 Local communication bus system comprising a set of interconnected devices, a control bus, and a set of signal interconnections, and a device and a switchbox for use in such system
10/31/1995US5463403 Automatic adjustment of receiver apparatus based on channel-bit-error-rate-affected parameter measurement
10/26/1995WO1995028811A1 A method and apparatus having time dependent sleep modes
10/26/1995WO1995028789A1 Universal connection for cellular telephone interface
10/26/1995WO1995028772A2 Receiving method and receiver
10/26/1995WO1995028771A2 Method for determining a phase error in a radio-frequency signal, and a receiver
10/26/1995WO1995024776A3 Transmission system for quasi-periodic signals
10/26/1995DE4414298A1 Verfahren zur Übertragung von digitalen Informationen über einen Übertragungskanal A method of transmission of digital information via a transmission channel
10/26/1995CA2186946A1 Universal connection for cellular telephone interface
10/25/1995EP0679025A2 Circuit arrangement for the feeding of an antenna signal
10/25/1995EP0678991A2 Method of controlling synchronization signal power in a spread spectrum communication system
10/25/1995EP0678987A1 Portable radio with display
10/25/1995EP0678981A2 High-frequency receiving stage
10/25/1995EP0678974A2 A transmitter and/or receiver
10/25/1995EP0678973A1 Receiving circuit for generating intermediate frequency signal having frequency characteristics independent of variations in temperature
10/25/1995EP0678804A1 Power saving arrangement for portable communication terminal
10/25/1995EP0678226A1 Transmission and reception of a first and a second main signal component
10/25/1995EP0587792A4 Battery saver for a communication device
10/25/1995EP0420974B1 Tunable resonance amplifier
10/25/1995EP0394493B1 Audio signal demodulation circuit
10/25/1995CN2211141Y Radio-frequency automatic jammer
10/25/1995CN2211102Y Motor-cycle type radio-recorder
10/25/1995CN1110890A CDMA transmission system
10/25/1995CN1110887A A data transmission method and a cdma/fdma radio system
10/25/1995CN1110886A Standby power saving in mobile phones
10/25/1995CN1110884A 失帧的隐蔽 Frame loss concealment
10/25/1995CN1110883A Rejected frame concealment
10/24/1995US5461672 Portable radio telephone having a slidable speaker unit
10/24/1995US5461664 Emergency wireless telephone
10/24/1995US5461629 Error correction in a spread spectrum transceiver
10/24/1995US5461558 Method and apparatus having time dependent sleep modes
10/24/1995US5461382 Remote control system having full-function and abbreviated-function remote control units
10/24/1995US5461378 Digital signal decoding apparatus
10/24/1995US5461262 Vehicle mounted adaptor for a portable radio transceiver
10/24/1995CA2073716C Telephonic handset housing assembly for cordless telephone
10/23/1995WO1995029535A1 Method for receiving code division multiplex signal
10/23/1995CA2147188A1 Method of controlling synchronization signal power in a communication system
10/20/1995CA2147227A1 Portable communications terminal energy saving device
10/19/1995WO1995028045A1 Wideband fft channelizer
10/19/1995WO1995028044A1 A method and system for digital audio information broadcasting comprising data compression, encryption and speech synthesizing
10/19/1995WO1995028042A1 Heterodyne receiver having low intermediate frequency
10/19/1995WO1995027928A1 Antenna for portable electronic equipment
10/19/1995DE4423366C1 Software clock operating method for electronic entertainment appts. e.g with TV receiver or video recorder
10/19/1995CA2147389A1 Receiving circuit for generating intermediated frequency signal having frequency characteristics independent of variatons in temperature
10/18/1995EP0677932A1 Method and apparatus for multichannel sound encoding
10/18/1995EP0677931A2 Moise shaping of differntially encoded and compressed audiosignals
10/18/1995EP0677886A2 Protecting device for protecting an electronic equipment in order to use the electronic equipment under a hostile environment
10/18/1995EP0677815A2 Radio-card communications system
10/18/1995EP0677752A1 System for Identification and/or detection
10/18/1995EP0677428A1 Mirror mount for an internal rearview mirror of a motor vehicle
10/18/1995EP0677221A1 Method and arrangement for tuning a combiner filter
10/18/1995CN2210493Y Receiver for electric power imformation
10/18/1995CN1110492A Apparatus and method for coding or decoding signals, and recording medium
10/18/1995CN1110491A A method and apparatus for mitigating distortion effects in the determination of signal usability
10/18/1995CN1110486A Transmission error concealment
10/18/1995CN1110465A Hand-held radiotelephone
10/18/1995CN1110459A Electrical equipment controller by using wireless calling system
10/18/1995CN1110442A Radio communication apparatus which can quickly recover from misjudgement of levels of a multilevel modulated signal
10/18/1995CN1030129C High efficiency digital data encoding and decoding apparatus
10/17/1995US5459787 Circuit for the implementation of an impedance for a telephone speech circuit
10/17/1995US5459760 Transmitting and receiving apparatus
10/17/1995US5459759 Frequency hopping code division multiple access system and method
10/17/1995US5459758 Noise shaping technique for spread spectrum communications
10/17/1995US5459750 Apparatus and method for discriminating and suppressing noise within an incoming signal
10/17/1995US5459702 Apparatus and method of improving the quality of recorded dictation in moving vehicles
10/17/1995US5459423 Semiconductor integrated circuit for a stable constant delay time
10/17/1995CA2028895C Cellular telephone system capable of reducing im distortion at portable telephone
10/15/1995CA2146919A1 Protecting device for protecting an electronic equipment in order to use the electronic equipment under a hostile environment
10/12/1995WO1995027381A1 System and method for mobile communications in coexistence with established communications systems
10/12/1995WO1995027357A1 Interconnection of local communication bus systems
10/12/1995WO1995027343A1 Hands-free two-way radio communication system
10/12/1995WO1995027342A1 A method of power conservation
10/12/1995WO1995027340A1 A wide bandwidth discriminator for use in a radio receiver
10/12/1995WO1995027336A1 Method and device for encoding signal, signal transmitting method, signal recording medium, and method and device for decoding signal
10/12/1995WO1995027335A1 Method and device for encoding information, method and device for decoding information, information transmitting method, and information recording medium
10/12/1995WO1995027273A1 Telemetry
10/12/1995DE4411716A1 Universal hand computer with removable service module
10/12/1995CA2186495A1 Hands-free two-way radio communication system
10/11/1995EP0676874A2 Method and apparatus for sequential cancellation of multiple access interference in a CDMA receiver
10/11/1995EP0676868A1 Audio signal transmission apparatus
10/11/1995EP0676824A1 Antenna equipment and mobile communication equipment
10/11/1995EP0676727A2 A method and apparatus for detecting an input signal
10/11/1995EP0676648A1 Transmit-receive module for a means of transportation
10/11/1995EP0676100A1 Method and apparatus for controlling a peak envelope power of a power amplifier
10/11/1995EP0676097A1 Method and apparatus for signal processing using reference signals
10/11/1995EP0572379B1 A method for the contactless transmission of information
10/11/1995EP0532575B1 Apparatus for detecting failure of an antenna amplifier unit with a hot standby redundancy
10/11/1995CN2209846Y Voice pager
10/11/1995CN2209845Y Calling device with improved structure
10/11/1995CN2209844Y Pager capable of broad casting voice signal
10/11/1995CN2209843Y Double code self-locking multiple radio remote controller