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)
01/1995
01/11/1995EP0632947A1 Method and apparatus of adaptive maximum likelihood sequence estimation using filtered correlation synchronization
01/11/1995EP0632944A1 Process for transmitting or storing digitalized, multi-channel audio signals
01/11/1995EP0632943A1 Method of eliminating repetitive interfering signals
01/11/1995CN2187356Y Wire-wireless-wire adapter
01/10/1995US5381473 Noise cancellation apparatus
01/10/1995US5381460 Monitor mode in a portable telephone
01/10/1995US5381447 Code division multiple access messaging system for providing seed information based on times of inbound messages
01/10/1995US5381446 Digital implementation of spread spectrum communications system
01/10/1995US5381387 Sound port for a wrist telephone
01/10/1995US5381346 Virtual data source for a radio transceiver
01/10/1995US5381181 Clock recovery apparatus as for a compressed video signal
01/10/1995US5381110 Spurious frequency suppressor
01/10/1995CA1333937C Component audio/video system with timed control of plural peripheral devices
01/10/1995CA1333922C Phase controlled demodulation system for digital communication
01/09/1995CA2122170A1 Combination parallel/serial execution of sequential algorithm for data compression/decompression
01/06/1995CA2126947A1 Cellular radio system with hopping
01/05/1995WO1995001032A1 Method and apparatus for determining the data rate of a received signal
01/05/1995WO1995001020A1 Virtual carrier detection for wireless local area network with distributed control
01/05/1995WO1995001016A1 Method for selectively receiving spread spectrum signal on chip basis
01/05/1995WO1995001011A1 Method and apparatus for testing telecommunications equipment using a reduced redundancy test signal
01/05/1995WO1995001009A1 A method for a transmitter to compensate for varying loading without an isolator
01/05/1995WO1995001006A1 Apparatus and method for frequency translation in a communication device
01/05/1995CA2142188A1 Chip-based selective receiving system for a spread spectrum signal
01/05/1995CA2140437A1 Apparatus and method for frequency translation in a communication device
01/04/1995EP0632603A1 Antenna apparatus having individual transmitting and receiving antenna elements for different frequencies
01/04/1995EP0632600A2 Radio receiver circuit
01/04/1995EP0632585A1 System for the bias control of an amplifier
01/04/1995EP0632577A1 Multi-stage digital RF translator
01/04/1995EP0632420A2 Moving body discriminator
01/04/1995EP0632368A1 A radio card to be associated with a computer
01/04/1995EP0631493A1 Bone fixation system
01/04/1995CN1027335C Signal weighting system for digital receiver
01/03/1995US5379456 Multiplying saw phase shift envelope detector
01/03/1995US5379453 Remote control system
01/03/1995US5379449 Automotive radio employing multipath correction strategy based on vehicle speed
01/03/1995US5379445 For controlling the size of a null zone in a drive signal for amplifier
01/03/1995US5379320 Hitless ultra small aperture terminal satellite communication network
01/03/1995US5379279 Communication device with time assigned duplex operation
01/03/1995US5379047 Remote position determination system
01/03/1995US5379046 Interference wave canceller
01/03/1995US5379011 Surface mount ceramic filter duplexer having reduced input/output coupling and adjustable high-side transmission zeroes
01/03/1995US5378996 RF power amplifier control
01/03/1995US5378935 Clock frequency adjustment of an electrical circuit
01/03/1995CA2022605C Portable radio transceiver system having improved adaptor and/or improved receive signal control arrangement
12/1994
12/31/1994CA2126919A1 System for controlling the bias voltage applied to an amplifier
12/28/1994EP0631422A2 A modem with received signals and transmitted signals comprising signal sets
12/28/1994EP0631409A2 Multipoint to point radiocommunications network
12/28/1994EP0631400A1 Portable transmitting and receiving device for two-mode digital signals
12/28/1994EP0631381A1 Transmitter chain for a digital radio telephone
12/28/1994EP0631380A1 Sequential amplifier
12/28/1994EP0631259A2 Remote object identification system
12/28/1994EP0631226A1 Apparatus and method for ultrasonic communication
12/28/1994EP0630538A1 Binary phase shift keying modulation system or frequency multiplier
12/28/1994EP0447495B1 Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio
12/28/1994CN1027208C Offset down conversion for a two-handset cordless telephone system
12/28/1994CN1027207C Biasing networks for balanced mixers
12/27/1994US5377272 Switched signal processing circuit
12/27/1994US5377232 Frequency synchronized bidirectional radio system
12/27/1994US5377227 Adaptive data recovery for spread spectrum systems
12/27/1994US5377226 Fractionally-spaced equalizer for a DS-CDMA system
12/27/1994US5377225 Multiple-access noise rejection filter for a DS-CDMA system
12/27/1994US5377223 Notch filtering a spread spectrum signal using fourier series coefficients
12/27/1994US5377222 Frequency agile radio
12/27/1994US5377221 Communications system
12/27/1994US5376941 Antenna direction adjusting method and apparatus for satellite broadcasting receiving system
12/27/1994US5376895 Control circuit and method for transmission output
12/27/1994CA2045881C Direct sequence spread spectrum digital transmission method using sequence changes during the transmission and transmitter and receiver implementing said method
12/27/1994CA2004555C Superconductive electromagnetic wave mixer and superconductive electromagnetic wave mixing apparatus employing the same
12/27/1994CA2002015C Perceptual coding of audio signals
12/26/1994CA2126657A1 Dual mode portable digital signal transmit/receive device
12/22/1994WO1994030028A1 Multi protocol personal communications system
12/22/1994WO1994030025A1 Base station receiver equipment
12/22/1994WO1994029980A1 Cdma transmission system
12/22/1994WO1994029977A1 Digital broadcast system
12/22/1994WO1994029975A1 Fading simulator
12/22/1994WO1994029971A1 Signaling packet for communication system with modulated reference according to a time-base law
12/22/1994WO1994029970A1 A data transmission method and a cdma/fdma radio system
12/22/1994WO1994029968A1 Pcmcia cellular card adaptable to a portable computer or a cellular phone handset
12/22/1994WO1994029967A1 An adaptive system for broadband multisignal discrimination in a channel with reverberation
12/22/1994WO1994029966A1 Radiotelephone apparatus including a wireless headset
12/22/1994WO1994029953A1 Temperature compensated variable gain amplifier
12/22/1994WO1994029851A1 Transmission error concealment
12/22/1994WO1994029850A1 Lost frame concealment
12/22/1994WO1994029849A1 Rejected frame concealment
12/22/1994DE4320012A1 Electronic time switch (clock timer)
12/22/1994DE4319961A1 Telecommunications device
12/22/1994CA2165424A1 Multiple protocol personal communications network system
12/22/1994CA2164433A1 Signaling for communication system whith modulated reference according to a time-base low
12/22/1994CA2164409A1 Fading simulator
12/22/1994CA2140365A1 Transmission error concealment
12/22/1994CA2140364A1 Rejected frame concealment
12/22/1994CA2140363A1 Lost frame concealment
12/21/1994EP0630120A1 Synchronisation method for radio telephone communications with code division multiplex access
12/21/1994EP0630118A1 Radio local area network
12/21/1994EP0630106A1 Automatic gain control apparatus
12/21/1994EP0629326A1 Housing assembly for a wireless communication device
12/21/1994EP0629325A1 Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a cdma cellular communications system
12/21/1994EP0629324A1 Apparatus and method for reducing power consumption in a mobile communications receiver
12/21/1994EP0629322A1 Adjacent channel controller for radio receiver.
12/21/1994CN2185956Y Universal grip slipper for fixed transceiver body