| 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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| 05/06/1997 | US5628057 Multi-port radio frequency signal transformation network |
| 05/06/1997 | US5628056 Apparatus for converting TV audio signals for reception on a nearby AM and/or FM receiver |
| 05/06/1997 | US5628055 Modular radio communications system |
| 05/06/1997 | US5628054 Portable radio apparatus having batteries for supplying a plurality of voltages |
| 05/06/1997 | US5628053 Integrated multilayered microwave circuit and a method of fabricating it |
| 05/06/1997 | US5628001 Power saving method and apparatus for changing the frequency of a clock in response to a start signal |
| 05/06/1997 | US5627938 Rate loop processor for perceptual encoder/decoder |
| 05/06/1997 | US5627937 Apparatus for adaptively encoding input digital audio signals from a plurality of channels |
| 05/06/1997 | US5627889 Service restoration technique for telecommunications facilities having a single degree of freedom |
| 05/06/1997 | US5627882 Enhanced power saving method for hand-held communications system and a hand-held communications system therefor |
| 05/06/1997 | US5627880 MAHO method for SFH-CDMA/TDMA using punctured frames |
| 05/06/1997 | US5627856 Method and apparatus for receiving and despreading a continuous phase-modulated spread spectrum signal using self-synchronizing correlators |
| 05/06/1997 | US5627855 Programmable two-part matched filter for spread spectrum |
| 05/06/1997 | US5627845 Variable rate communication method and a variable rate communication system |
| 05/06/1997 | US5627835 Artificial window size interrupt reduction system for CDMA receiver |
| 05/06/1997 | US5627822 Method and circuit arrangement for disturbance-free redirection of a message cell stream onto an alternate route |
| 05/06/1997 | US5627553 Folded lens antenna |
| 05/06/1997 | US5627549 Dual channel advertising referencing vehicle location |
| 05/06/1997 | US5627540 Remote control system having full-function and abbreviated-function remote control units |
| 05/06/1997 | US5627529 Vehicle control system with trainable transceiver |
| 05/06/1997 | US5627516 Electronic article surveillance input configuration control system employing expert system techniques for dynamic optimization |
| 05/06/1997 | US5627502 Resonator filter with variable tuning |
| 05/06/1997 | US5625980 Garage door opener with remote safety sensors |
| 05/06/1997 | CA2094639C Transformer-less hybrid circuit |
| 05/06/1997 | CA2094504C Radio equipment directional coupler |
| 05/06/1997 | CA2081794C Apparatus and method for modifying a frequency hopping sequence of a cordless telephone operating in a frequency hopping system |
| 05/06/1997 | CA2079389C Miniature portable radio communication apparatus |
| 05/02/1997 | EP0771084A1 Time diversity transmission-reception system |
| 05/02/1997 | EP0771083A2 Audio coding device and audio decoding device |
| 05/02/1997 | EP0771082A2 Mobile station without a transmission/reception duplexer |
| 05/02/1997 | EP0771081A2 Waveform identity discriminating circuit |
| 05/02/1997 | EP0771076A1 Frequency synthesizer |
| 05/02/1997 | EP0771069A2 Apparatus for controlling the conversion gain of a down converter |
| 05/02/1997 | EP0771068A1 Bias controller for decreasing bias current supplied to amplifier without sacrifice of distortion |
| 05/02/1997 | EP0770885A1 Transmitting and receiving system |
| 05/02/1997 | EP0770310A2 Transmission system with improved tone detection |
| 05/02/1997 | EP0770290A1 Process, sender and receiver for transmitting and selecting local radio programs in a common-wave broadcasting network |
| 05/02/1997 | EP0770289A2 A direct-sequence spread spectrum communication system, a primary radio station, and a secondary radio station |
| 05/02/1997 | EP0417099B1 Alternating sequential half duplex communication system |
| 05/01/1997 | WO1997016058A1 Radio communication device and its cover |
| 05/01/1997 | WO1997016044A1 Retransmission control method for cdma mobile communication |
| 05/01/1997 | WO1997016012A1 Broadband, low power fm/fsk transceiver for wireless communications systems |
| 05/01/1997 | WO1997015998A1 A radio broadcasting system, a transmitter and a receiver for use in such a system, a radio broadcasting method and a radio broadcasting signal |
| 05/01/1997 | WO1997015997A2 A system for transferring data in re-assignable groups, a transmitter and a receiver for use in such a system, and a method for transferring, transmitting and receiving such data, and a signal comprising such data |
| 05/01/1997 | WO1997015996A1 Method and apparatus for interference suppression in spread spectrum signals |
| 05/01/1997 | WO1997015987A1 System for the transmission of data by mixed operation of a pdh and of a sdh with a stand-by transmission channel |
| 05/01/1997 | WO1997015986A1 A method for direct sequence spreading of a data sequence (dsss) |
| 05/01/1997 | WO1997015984A1 Repeated decoding and encoding in subband encoder/decoders |
| 05/01/1997 | WO1997015983A1 Method of and apparatus for coding, manipulating and decoding audio signals |
| 05/01/1997 | WO1997015982A1 A shielding device |
| 05/01/1997 | WO1997015980A1 Transmitter comprising carrier suppression and dc offset reduction means |
| 05/01/1997 | WO1997008843A3 Common receive module for a programmable digital radio |
| 05/01/1997 | WO1997008840A3 Common transmit module for a programmable digital radio |
| 05/01/1997 | WO1997006446A3 Multipath error reduction in a spread spectrum receiver for ranging applications |
| 05/01/1997 | CA2235737A1 A method for direct sequence spreading of a data sequence (dsss) |
| 05/01/1997 | CA2186278A1 Method and system for increasing the power efficiency of a balanced amplifier/antenna combination |
| 04/30/1997 | DE19623665C1 Received signal mixture separation for multi-subscriber transmission |
| 04/30/1997 | DE19540183A1 Stereorundfunkempfänger Stereo broadcast radio receiver |
| 04/30/1997 | DE19539939A1 Code transmitter e.g. for motor vehicle theft prevention system |
| 04/30/1997 | CN2253546Y Facsimile device for mobile telephone |
| 04/30/1997 | CN1148922A Receiving method and receiver |
| 04/30/1997 | CN1148920A Data communication system having channel switching means |
| 04/30/1997 | CN1148919A Variable rate transmitting method, and transmitter and receiver using it |
| 04/30/1997 | CN1148913A Improvement in or relating to communications receivers |
| 04/30/1997 | CN1148787A Shield assembly used in communication device as shield, and method thereof |
| 04/30/1997 | CN1148782A Speech-sound sending-out type beeper |
| 04/30/1997 | CN1148758A Radio communication equipment using single frequency and method thereof |
| 04/30/1997 | CN1148757A Wireless tuning controller |
| 04/30/1997 | CN1148756A Method for controlling transmitting power of wireless transmitter |
| 04/30/1997 | CN1148755A Circuit for synchronous transmitter local oscillator frequency in digital microwave system applied in same wave channel |
| 04/29/1997 | US5625894 Switch filter having selectively interconnected filter stages and ports |
| 04/29/1997 | US5625883 System for wireless information transmission between two different rooms |
| 04/29/1997 | US5625882 Power management technique for determining a device mode of operation |
| 04/29/1997 | US5625871 Cellular communications system with multicarrier signal processing |
| 04/29/1997 | US5625866 Mobile telecommunication system having an auxiliary routing arrangement |
| 04/29/1997 | US5625863 Video distribution system using in-wall wiring |
| 04/29/1997 | US5625746 Method and apparatus for encoding, decoding and compression of audio-type data |
| 04/29/1997 | US5625745 Noise imaging protection for multi-channel audio signals |
| 04/29/1997 | US5625674 Use of a VCXO in the base unit of a two-handset cordless telephone system |
| 04/29/1997 | US5625647 Transmitter having automatic level control function |
| 04/29/1997 | US5625642 Spread-response precoding system having signature sequences longer than the inter-symbol time interval |
| 04/29/1997 | US5625641 Correlator, synchronizer provided with the correlator, and fast frequency hopping spread spectrum receiver provided with the synchronizer |
| 04/29/1997 | US5625639 Spread spectrum method for transmitting an information signal as a radio signal at a high speed |
| 04/29/1997 | US5625624 High data rate satellite communication system |
| 04/29/1997 | US5625608 Remote control device capable of downloading content information from an audio system |
| 04/29/1997 | US5625555 Data communication system with adapter for removable coupling of portable data terminals |
| 04/29/1997 | US5625381 Control element constituting a mouse |
| 04/29/1997 | US5625350 Audio/video communication system and method |
| 04/29/1997 | US5625321 Variable gain amplifier apparatus |
| 04/29/1997 | US5625319 FM demodulator for reception of satellite broadcasting |
| 04/29/1997 | US5625180 Data capture system with communicating and recharging docking apparatus and hand-held data terminal means cooperable therewith |
| 04/28/1997 | WO1997015988A1 An apparatus and method for filtering a received signal |
| 04/24/1997 | WO1997015154A1 Activity control for a mobile station in a wireless communication system |
| 04/24/1997 | WO1997015132A1 Scrambled information transmitting and receiving |
| 04/24/1997 | WO1997015122A1 Method and device for separating and presuming noise contained in spread spectrum signal |
| 04/24/1997 | WO1997015002A1 Complex signal limiting |
| 04/24/1997 | WO1997003501A3 Dual mode satellite/cellular terminal |
| 04/24/1997 | DE19610850C1 Monostatic homodyne radar system for vehicle radar and radar sensor, e.g. for level measurement |
| 04/24/1997 | DE19538913A1 Radio clock receiver especially for receiving longwave time signals |
| 04/24/1997 | DE19535910A1 Radio device for use in vehicle |