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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12/05/1995 | US5473265 Circuit configuration for the generation of a line terminating impedance |
12/02/1995 | CA2147399A1 Feed structure for use in a wireless communication system |
11/30/1995 | WO1995032593A1 Method and apparatus for rapid handover in a mobile radio system in the presence of abrupt radio signal attenuation |
11/30/1995 | WO1995032583A1 Improved electronic television program schedule guide system and method |
11/30/1995 | WO1995032572A1 Charge-coupled-device based transmitters and receivers |
11/30/1995 | WO1995032556A1 Arrangement for determining a signal spectrum of a wideband digital signal and for deriving bit allocation information in response thereto |
11/30/1995 | WO1995028772A3 Receiving method and receiver |
11/30/1995 | DE4418234A1 Coded transmission and reception unit for contacting partners with common interest |
11/30/1995 | DE19517957A1 Tuner assembly accepting several frequency bands |
11/30/1995 | DE19517523A1 Portable or mobile telephone subscriber's appts. |
11/29/1995 | EP0684721A2 Data bus communication |
11/29/1995 | EP0684711A1 Method of and apparatus for selecting a broadcast station using programme type information transmitted on a subcarrier in the programme signal |
11/29/1995 | EP0684705A2 Multichannel signal coding using weighted vector quantization |
11/29/1995 | EP0684704A2 A diversity antenna for a wrist telephone |
11/29/1995 | EP0684703A1 Circuit for removing random fm noise |
11/29/1995 | EP0684590A2 Voice storage communication system, receiving station therefor, and method of receiving a communication packet |
11/29/1995 | EP0684589A2 Voice storage communication system, receiving station therefor, and method of receiving a communication packet |
11/29/1995 | EP0683960A1 Local communication system and station for use in such a system |
11/29/1995 | EP0683959A1 Local communication system and station for use in such a system |
11/29/1995 | EP0683958A1 Local communication system and station for use in such a system |
11/29/1995 | EP0683939A1 Radio transceiver comprising an arrangement for compensating for a dc component |
11/29/1995 | EP0683938A1 Method and apparatus of frequency generation for use with digital cordless telephones |
11/29/1995 | EP0683923A1 Method of producing a radio frequency transponder with a molded environmentally sealed package |
11/29/1995 | CN2214052Y Multifunction audio-frequence signal change machine |
11/29/1995 | CN1112799A Method and apparatus for encoding digital signals, method and apparatus for decoding the coded signals, and medium for recording the coded signals |
11/29/1995 | CN1112763A Audio visual system |
11/29/1995 | CN1112738A Antenna element mounting in a radio |
11/28/1995 | US5471668 Combined transmitter/receiver integrated circuit with learn mode |
11/28/1995 | US5471667 Waterproof type unit casing |
11/28/1995 | US5471666 Electronic instrument casing |
11/28/1995 | US5471665 Differential DC offset compensation circuit |
11/28/1995 | US5471664 Clockwise and counterclockwise circularly polarized wave common receiving apparatus for low noise converter |
11/28/1995 | US5471663 Expanded microcomputer system for controlling radio frequency interference |
11/28/1995 | US5471661 Ultra high speed scan system |
11/28/1995 | US5471660 Channel selecting method for radio receiver and highspeed scanning type radio receiver |
11/28/1995 | US5471659 Dual radio |
11/28/1995 | US5471658 Hermetically sealed communication system with rechargeable battery |
11/28/1995 | US5471656 Communication apparatus utilizing high power amplifier |
11/28/1995 | US5471655 Method and apparatus for operating a radiotelephone in an extended stand-by mode of operation for conserving battery power |
11/28/1995 | US5471654 Transmitting/receiving unit having automatic gain control system with temperature compensation |
11/28/1995 | US5471653 Portable radio apparatus and mount structure therefor |
11/28/1995 | US5471652 Frequency synthesizer and multiplier circuit arrangement for a radio telephone |
11/28/1995 | US5471651 Method and system for compressing the dynamic range of audio signals |
11/28/1995 | US5471647 Method for minimizing cross-talk in adaptive transmission antennas |
11/28/1995 | US5471558 Signal processing apparatus |
11/28/1995 | US5471534 Devices, systems and methods for composite signal decoding employing interpolation filter |
11/28/1995 | US5471503 Scanning method for receiving a transmission in a communication system with slow frequency hopping and coding |
11/28/1995 | US5471502 Bit clock regeneration circuit for PCM data, implementable on integrated circuit |
11/28/1995 | US5471469 Method of resolving media contention in radio communication links |
11/28/1995 | US5471187 Data signal comparation with self-adjusting threshold |
11/28/1995 | US5471018 Audio or video apparatus with a built-in loudspeaker |
11/28/1995 | CA2068425C Fast phase shift adjusting method and device for linear transmitter |
11/28/1995 | CA2063640C Satellite telecommunication installation capable of serving several coverage zones |
11/28/1995 | CA2048148C Transmitter |
11/28/1995 | CA2044774C Receiver for a cellular mobile radio communication system |
11/24/1995 | CA2148725A1 Antenna apparatus |
11/23/1995 | WO1995031871A1 Television program record scheduling and satellite receiver control using compressed codes |
11/23/1995 | WO1995031864A1 Charge-coupled-device base data-in-voice modem |
11/23/1995 | WO1995031863A1 Communication terminal and portable telephone set |
11/23/1995 | WO1995028771A3 Method for determining a phase error in a radio-frequency signal, and a receiver |
11/23/1995 | WO1995026594A3 Transmission of tuning data of broadcasting transmitters to a receiver |
11/23/1995 | DE4430987C1 Aerial switching device for diversity telecommunication system |
11/23/1995 | DE4417756A1 Satellite receiver for television and/or radio signals |
11/23/1995 | DE19517152A1 Remote control system for audio-video units |
11/22/1995 | EP0683619A2 Method and apparatus for the diversion of a communication cell stream to an alternative path |
11/22/1995 | EP0683587A1 Attachment device for a mobile station |
11/22/1995 | EP0683470A2 IC card-type radio communication device |
11/22/1995 | EP0682850A1 Method and apparatus for compressing, method for transmitting, and method and apparatus for expanding compressed multi-channel sound signals, and recording medium for compressed multi-channel sound signals |
11/22/1995 | EP0540630B1 Programmable digital acquisition and tracking controller |
11/22/1995 | CN2213405Y Common aerial TV system duplexer |
11/22/1995 | CN2213404Y Wrist watch type calling apparatus |
11/22/1995 | CN2213403Y Cabinet for beeper |
11/22/1995 | CN1112382A A latching system |
11/22/1995 | CN1112317A Self-adaptive noise filter |
11/22/1995 | CN1112314A Identifying and/or sensing system |
11/22/1995 | CN1112313A Broadcast signal receiver |
11/22/1995 | CN1030364C Interference detection technique |
11/21/1995 | US5469474 Quantization bit number allocation by first selecting a subband signal having a maximum of signal to mask ratios in an input signal |
11/21/1995 | US5469471 Method and apparatus for providing a communication link quality indication |
11/21/1995 | US5469470 Spread spectrum communication system using two-predetermined-code pseudo-noise signals |
11/21/1995 | US5469469 Composite spread spectrum signal including modulator demodulator |
11/21/1995 | US5469468 For communicating data from a satellite to remote pager units |
11/21/1995 | US5469465 Method and apparatus for mitigating distortion effects in the determination of signal usability |
11/21/1995 | US5469427 Transmission line control system and interface unit therefor |
11/21/1995 | US5469287 Laser light receiving device with improved noise discrimination |
11/21/1995 | US5469211 Video camera |
11/21/1995 | US5469173 Monitoring phase characteristics of BPSK and CW signals |
11/21/1995 | US5469152 Remote control device that transmits signals indicating termination of key pressing operations |
11/21/1995 | US5469115 Method and apparatus for automatic gain control in a digital receiver |
11/21/1995 | US5469105 Transmitter and power amplifier therefor |
11/16/1995 | WO1995031079A1 A method for validating a communication link |
11/16/1995 | WO1995031049A1 Companding system (lincompex) using pre- and de-emphasis |
11/16/1995 | WO1995031048A1 Radiation shielding apparatus for a radio transmitting device |
11/16/1995 | WO1995026593A3 Method for interference cancellation in a cellular cdma network |
11/16/1995 | DE4432431C1 Microwave doppler module for velocity measurement or movement detection |
11/16/1995 | DE4424778C1 Verfahren zur Übertragung und Verfahren zum Empfang von Lokalen Rundfunkprogrammen in einem Gleichwellennetz sowie zugehörige Sender und Empfänger A method for transmitting and receiving method of local radio programs in a single frequency network and associated transmitter and receiver |
11/16/1995 | DE4294697C2 Method for permitting data entry without keypad |
11/16/1995 | DE19517126A1 Multiplex signal receiver with changeover function |
11/15/1995 | EP0682458A2 Radio communication device |
11/15/1995 | EP0682437A2 Device and method for automatically controlling sound volume in a communication apparatus |