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) |
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02/01/1995 | EP0637140A2 System configuration method for audio-video apparatus with digital bus interface |
02/01/1995 | EP0637139A1 Method for removing interference wave, receiver and communication system which use the method |
02/01/1995 | EP0637131A1 Microwave amplifier having a variable-impedance impedance matching circuit |
02/01/1995 | EP0637130A2 Receiver and method of receiving |
02/01/1995 | EP0636268A1 Apparatus, method, and system for compressing a digital input signal in more than one compression mode |
02/01/1995 | EP0636242A1 Apparatus and method for voice band reduction |
02/01/1995 | EP0554290B1 Method of detecting errors in the transmission of frequency-coded digital signals |
02/01/1995 | CN2188825Y Bus type wired intercommunicating apparatus |
02/01/1995 | CN2188824Y Frequency-modulated auxiliary channel speech communication stock |
02/01/1995 | CN2188823Y Communication branching device |
02/01/1995 | CA2129271A1 Radio phone apparatus having compact cordless extension unit |
01/31/1995 | US5386590 Apparatus and method for increasing data transmission rate over wireless communication systems using spectral shaping |
01/31/1995 | US5386587 Satellite broadcasting receiving system with reception level indicator using control signal from receiver |
01/31/1995 | US5386435 Frequency hopping spread spectrum data communications system |
01/31/1995 | US5386424 Apparatus and method for transmitting information between dual redundant components utilizing four signal paths |
01/31/1995 | US5386251 System for operating an electronic device |
01/31/1995 | US5386203 Antenna coupler |
01/31/1995 | CA1334208C Apparatus for processing stereo signals and universal am stereo receivers incorporating such apparatus |
01/30/1995 | CA2114341A1 Receiver with an agc circuit capable of expanding a dynamic range |
01/26/1995 | WO1995002930A1 Computationally efficient adaptive bit allocation for coding method and apparatus |
01/26/1995 | WO1995002929A1 Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions |
01/26/1995 | WO1995002928A1 Hybrid adaptive allocation for audio encoder and decoder |
01/26/1995 | WO1995002927A1 Method and apparatus for controlling transceiver operations in a radio communications system |
01/26/1995 | WO1995002926A1 Transceiver for transmitting and receiving stair-stepped sinusoidal waveforms |
01/26/1995 | WO1995002925A1 High-efficiency encoding method, high-efficiency decoding method, high-efficiency encoding device, high-efficiency decoding device, high-efficiency encoding/decoding system and recording media |
01/26/1995 | DE4426358A1 Remote control transmitter |
01/26/1995 | DE4409128C1 Transcoding device with transcoding cells for data compression or expansion |
01/26/1995 | DE4324304A1 Method for suppressing reception interference in an FM receiver |
01/25/1995 | EP0635963A2 Portable telephone set for use with IC card |
01/25/1995 | EP0635936A2 Communication system using time-multiplex signals |
01/25/1995 | EP0635935A1 Booster and burst transmission apparatus using the same |
01/25/1995 | EP0635898A1 Extra antenna element |
01/25/1995 | EP0635177A1 Method of transmitting and/or storing digitized data-reduced audio signals. |
01/25/1995 | EP0624275A4 Method and system for the arrangement of vocoder data for the masking of transmission channel induced errors. |
01/25/1995 | EP0572639A4 Distribution system for communication services. |
01/25/1995 | CN2188263Y Loudspeaker telephone receiver fixing device for wireless intercom in car |
01/25/1995 | CN2188262Y Electromagnetic radiation protector for hand telephone set |
01/25/1995 | CN1097910A Radio receiver-transmitter apparatus |
01/25/1995 | CN1097909A Waterproof type unit casing |
01/24/1995 | US5384811 Method for the transmission of a signal |
01/24/1995 | US5384793 Fading and random pattern error protection method for dynamic bit allocation sub-band coding |
01/24/1995 | US5384603 Video signal splitter with DC short circuit protection |
01/24/1995 | US5384567 Combination parallel/serial execution of sequential algorithm for data compression/decompression |
01/24/1995 | US5384564 Battery saving arrangement for selectively addressable, portable receivers |
01/24/1995 | US5384552 Clock recovery circuit for extracting clock information from a received baseband signal |
01/19/1995 | WO1995002294A1 Distributed time synchronization system and method |
01/19/1995 | WO1995002288A1 Reduction of background noise for speech enhancement |
01/19/1995 | WO1995002285A1 Surface acoustic wave device for a differential phase-shift direct-sequence spread-spectrum signal receiver |
01/19/1995 | WO1995002284A1 Device and antenna for cordless radio communication |
01/19/1995 | WO1995002240A1 A fixed bit rate speech encoder/decoder |
01/19/1995 | WO1994026049A3 Wireless data transceiver |
01/19/1995 | DE4323144A1 Wireless information transmission system |
01/19/1995 | DE4322992A1 Transmission and/or reception system with optimised polarisation conversion |
01/19/1995 | DE4321917A1 Remote control transmitter |
01/19/1995 | DE4321899A1 Device for operating a telephone |
01/19/1995 | CA2166723A1 A fixed bit rate speech encoder/decoder |
01/19/1995 | CA2143433A1 Component for a direct sequence spread spectrum signal differential transceiver or receiver and the corresponding transceiver |
01/18/1995 | EP0634891A1 Transceiver circuit module having electromagnetically isolated transmitting and receiving circuit sections |
01/18/1995 | EP0634855A1 Automatic frequency control for direct-conversion FSK receiver |
01/18/1995 | EP0634845A2 Noise burst detection in an ADPCM decoder |
01/18/1995 | EP0634843A2 Equalisation arrangement |
01/18/1995 | EP0634842A2 Method and apparatus for disturbance resistant bidirectional information transmission over power distribution networks |
01/18/1995 | EP0634841A2 Smooth spectrum spreading with a small spreading factor |
01/18/1995 | EP0634729A2 Device for date exchange |
01/18/1995 | EP0634308A1 Device for supporting a handheld radio telephone |
01/18/1995 | EP0634057A1 Radio circuit including antenna assembly |
01/18/1995 | EP0568532B1 Process for transmitting digitised, block-coded audio signals using scale factors |
01/18/1995 | CN1097538A Current supply circuit for a consumer electronics apparatus |
01/17/1995 | USRE34831 Communication system |
01/17/1995 | US5383224 Cross polarization interference canceller |
01/17/1995 | US5383220 Data demodulator of a receiving apparatus for spread spectrum communication |
01/17/1995 | US5383202 Simplified method of attenuation of logarithmically coded digital signals |
01/17/1995 | US5383164 Adaptive system for broadband multisignal discrimination in a channel with reverberation |
01/17/1995 | US5383091 Grip and protective casing for cellular telephone |
01/17/1995 | US5382982 Television receiver with multiple inputs and outputs for automatically switching between inputs |
01/17/1995 | US5382952 Transponder for proximity identification system |
01/17/1995 | US5382924 Continuous phase frequency shift keying modulator |
01/17/1995 | US5381684 Detachable apparatus for automotive audio equipment |
01/17/1995 | CA2057013C Synthesized selective call receiver having variable characteristics |
01/17/1995 | CA2024594C Transmission power control circuit |
01/12/1995 | WO1995001699A1 Electronic device for controlling application of a charging current thereto and associated method therefor |
01/12/1995 | WO1995001697A1 Method and apparatus for reducing power consumption in cellular telephones and like receiving devices |
01/12/1995 | WO1995001692A1 Electronic device having internal charge regulator |
01/12/1995 | WO1995001680A1 Digital signal encoding device, its decoding device, and its recording medium |
01/12/1995 | WO1995001677A1 Method and apparatus for encoding and decoding compressed data in data communication |
01/12/1995 | WO1995001675A1 Expanded microcomputer system for controlling radio frequency interference |
01/12/1995 | WO1995001674A1 Radio receiver |
01/12/1995 | WO1995001673A1 Filter windows for fourier transform signal compression |
01/12/1995 | WO1995001634A1 Method and apparatus for reducing an undesirable characteristic of a spectral estimate of a noise signal between occurrences of voice signals |
01/12/1995 | WO1995001633A1 Method and apparatus for encoding digital signals, method and apparatus for decoding the coded signals, and medium for recording the coded signals |
01/12/1995 | DE4423582A1 Zellularfunksystem nach dem Frequenzsprungverfahren Cellular radio system in accordance with the frequency hopping |
01/12/1995 | DE4327334C1 Chip card |
01/12/1995 | DE4321882A1 Hand-held radio telephone |
01/12/1995 | CA2142880A1 Expanded microcomputer system for controlling radio frequency interference |
01/11/1995 | EP0633677A2 CDMA Receiver with interference and phase variation canceller |
01/11/1995 | EP0633676A2 Code division multiple access communication system |
01/11/1995 | EP0633674A2 Radio-transceiver with means for reducing interference |
01/11/1995 | EP0633668A2 Data compression apparatus |
01/11/1995 | EP0633661A1 Remote control systems |
01/11/1995 | EP0633658A2 Voice activated transmission coupled AGC circuit |