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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12/17/1997 | CN1168035A Spectrum spread communications system for high-speed communications |
12/17/1997 | CN1168034A Method and apparatus for encoding of digitalized audio signal |
12/17/1997 | CN1168033A Improvements in or relating to radio receivers |
12/17/1997 | CN1036755C Paging receiver and radio frequency channel searching method for same |
12/17/1997 | CN1036754C Casing structure for apparatus using pneumatic battery |
12/17/1997 | CA2208098A1 Radio pager |
12/16/1997 | US5699484 Method and apparatus for applying linear prediction to critical band subbands of split-band perceptual coding systems |
12/16/1997 | US5699479 Tonality for perceptual audio compression based on loudness uncertainty |
12/16/1997 | US5699432 Circuit for mobile radio receivers |
12/16/1997 | US5699426 Video data bus communication system and method |
12/16/1997 | US5699385 Method and apparatus for locating and tracking a QPSK carrier |
12/16/1997 | US5699383 High-power linear amplification using periodically updated amplitude and phase correction values |
12/16/1997 | US5699380 Spread spectrum communication terminal apparatus in CDMA cellular telephone system |
12/16/1997 | US5699066 Synchronized electronic identification system |
12/16/1997 | US5699055 Trainable transceiver and method for learning an activation signal that remotely actuates a device |
12/16/1997 | US5699054 For receiving an activation signal |
12/16/1997 | US5699052 System for automatically selecting an available device in an audio/video system |
12/16/1997 | US5699021 Balanced and buffered oscillator and transmitter arrangement |
12/16/1997 | US5697724 Metal fitting structure for anchoring a chain to a portable apparatus |
12/16/1997 | US5697384 Internal identification apparatus for animals |
12/16/1997 | US5697124 Hinge mechanism for foldable electronic apparatus |
12/16/1997 | CA2108208C Arrangement for demodulating speech signals discontinuously transmitted from a mobile unit |
12/11/1997 | WO1997047149A2 Method and apparatus of preserving power of a remote unit in a dispatch system |
12/11/1997 | WO1997047124A1 Method and apparatus for managing client-server communications |
12/11/1997 | WO1997047117A1 Communications terminal having a single transducer for handset and handsfree receive functionality |
12/11/1997 | WO1997047101A1 Method for processing of data with a radio receiver |
12/11/1997 | WO1997047098A1 Subscriber unit for a cdma wireless communication system |
12/11/1997 | WO1997047053A1 Receiver with stripline filter and stripline filter |
12/11/1997 | WO1997025783A3 Single conversion tv/fm receiver for multimedia applications |
12/11/1997 | DE19645449C1 Mechanically connecting car radio with media reproduction device |
12/11/1997 | DE19628293C1 Codieren und Decodieren von Audiosignalen unter Verwendung von Intensity-Stereo und Prädiktion Encoding and decoding of audio signals by using intensity stereo prediction and |
12/11/1997 | DE19623122A1 Partial screening for antenna of portable telephone |
12/10/1997 | EP0812096A2 Method and apparatus for managing communications between a client and a server in a network |
12/10/1997 | EP0812095A2 Communication terminal apparatus and mobile telephone battery for supplying power thereto |
12/10/1997 | EP0812092A2 Method and system for controlling the communication of electronic equipment |
12/10/1997 | EP0812091A2 Method and system for controlling the communication of electronic equipment |
12/10/1997 | EP0812071A2 System for transmitting informations |
12/10/1997 | EP0812070A1 Method and device for compression encoding of a digital signal |
12/10/1997 | EP0812069A2 Dual-mode cellular telephone system |
12/10/1997 | EP0811964A2 Noise-reduced speech apparatus and noise-reduced speech method |
12/10/1997 | EP0811277A1 Joint demodulation using spatial maximum likelihood |
12/10/1997 | EP0811275A1 A radio having an option board interface and an option board for use therewith |
12/10/1997 | EP0811274A1 Remote control device and remote control method |
12/10/1997 | EP0811273A2 A receiver, an arrangement and a method for comparing two signals |
12/10/1997 | EP0643889A4 Method and apparatus for coherent communication in a spread-spectrum communication system. |
12/10/1997 | CN2270319Y Rodio communication apparatus for ship |
12/10/1997 | CN1167416A Method for testing spectrum spreading signal in code division multi-address radio communication system |
12/10/1997 | CN1167415A Radio communication device with autenna trigger switch |
12/10/1997 | CN1167391A Noise-reducing talking device and method |
12/10/1997 | CN1167387A Device for correcting phase noise in digital receiver |
12/10/1997 | CN1167384A Transmission system for digital audio-frequency broadcasting |
12/10/1997 | CN1167383A Transmission system for digital audio-frequency broadcasting |
12/10/1997 | CN1167382A Transmission system for digital audio-frequency broadcasting |
12/10/1997 | CN1167377A Pilot signal test method, device and receiver |
12/10/1997 | CN1167376A Radio signal relay equipment of code classfied multi-address communication system |
12/10/1997 | CN1167375A Digital radio communication method and system structure in very-small antenna globe station network |
12/10/1997 | CN1167374A Data backup method for pager |
12/10/1997 | CN1167367A Composite high-frequency element |
12/10/1997 | CN1167347A Receiver |
12/10/1997 | CN1167309A Rate changeable sonic code device |
12/09/1997 | US5697096 Narrow-band communication apparatus |
12/09/1997 | US5697095 For outputting a local oscillation signal to a mixer |
12/09/1997 | US5697093 Zero IF receivers |
12/09/1997 | US5697091 Distortion-free chopper-based signal mixer |
12/09/1997 | US5697090 SHF converter |
12/09/1997 | US5697088 Communication device |
12/09/1997 | US5697086 Co-channel FM signal/interference canceller |
12/09/1997 | US5697085 Radio transceiver comprising an arrangement for compensating for a DC component |
12/09/1997 | US5697084 Reducing multipath fading using adaptive filtering |
12/09/1997 | US5697081 Intermodulation distortion reduction circuit utilizing variable attenuation |
12/09/1997 | US5697080 Method of and apparatus for selecting station in multiplexed broadcast, and receiving system |
12/09/1997 | US5697078 Wideband channel sniffer for monitoring channel use in a wireless communication system |
12/09/1997 | US5697075 Diversity apparatus for a global positioning system antenna |
12/09/1997 | US5697074 Dual rate power control loop for a transmitter |
12/09/1997 | US5697072 Transmission signal level control device for radio transmitter |
12/09/1997 | US5697071 Mobile phone holder structure |
12/09/1997 | US5697070 Battery pack for portable transceiver |
12/09/1997 | US5697069 Transmit-receiver switch |
12/09/1997 | US5697068 System and method for providing a non-invasively tunable transceiver synthesizer |
12/09/1997 | US5697067 Communication system utilizing radiating transmission line |
12/09/1997 | US5697061 Method and apparatus for providing information concerning products, using radio frequency transmissions |
12/09/1997 | US5697049 Radio relay method, radio relay system using the method and radio unit |
12/09/1997 | US5697048 On-vehicle data communication system and method |
12/09/1997 | US5696830 Circuit arrangement for deriving a quality signal dependent on the quality of a received multiplex signal |
12/09/1997 | US5696792 Digital radiocommunication terminal |
12/09/1997 | US5696789 Apparatus and method for signal identification |
12/09/1997 | US5696766 Apparatus and method of synchronizing a transmitter in a subscriber terminal of a wireless telecommunications system |
12/09/1997 | US5696762 Rapid-acquisition access channel scheme for CDMA systems |
12/09/1997 | US5696691 Self-adjusting statistical noise analyzer with interference suppression |
12/09/1997 | US5696518 Antenna device integrally fixed to portable electronic appliance |
12/09/1997 | US5696513 Signal transmitting apparatus |
12/09/1997 | US5696500 Multi-media receiver and system therefor |
12/09/1997 | US5696497 Radio with silent and audible alerts |
12/09/1997 | US5696496 Portable messaging and scheduling device with homebase station |
12/09/1997 | US5696485 Method for charging a transponder |
12/09/1997 | US5696437 Intelligent low battery detection circuit for a paging receiver |
12/09/1997 | US5695885 External battery and photoyoltaic battery charger |
12/09/1997 | CA2112020C Adaptive equalizer |
12/09/1997 | CA2083712C Control apparatus for a mobile radiotelephone |
12/09/1997 | CA2081004C Apparatus and method for reducing harmonic interference generated by a clock signal |