Patents for H04B 5 - Near-field transmission systems, e.g. inductive loop type (17,859) |
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07/14/1987 | US4679560 Wide band inductive transdermal power and data link |
07/09/1987 | EP0216903A4 Telemetry system for an implantable device. |
07/02/1987 | WO1987004028A1 Magnetic transmission |
06/23/1987 | US4675638 Ferromagnetic multiple shell core for electric coils |
06/18/1987 | WO1987003501A2 Communication system |
06/09/1987 | US4672223 Proving safe operation |
06/04/1987 | DE3622010A1 Device for signal transmission with magnetic field, an elimination of the directional effects of the transmitting and receiving coil, usable in the case of uninterrupted information flow |
06/03/1987 | EP0208711A4 Dc to dc converter. |
05/12/1987 | US4665559 FM-TV audio adapter |
05/12/1987 | US4665399 Device for transmitting of binary data between a mobile data carrier and a stationary station |
05/05/1987 | US4663624 Pager having receiving frame tuned by transducer |
05/05/1987 | US4663623 Decoding arrangements for synchronous receivers |
04/30/1987 | DE3538165A1 Device for transmitting data to a rail vehicle |
04/21/1987 | US4660032 Radio paging receiver operable on a word-scrolling basis |
04/08/1987 | EP0216903A1 Telemetry system for an implantable device |
04/08/1987 | CN85107348A Audio-frequency earpiece without power and wires |
03/31/1987 | US4654880 Signal transmission system |
03/31/1987 | CA1219917A1 Radio paging receiver operable on a word-scrolling basis |
03/18/1987 | CN85106546A Mutual-inductance carrier equipment for mine production |
02/26/1987 | WO1987001252A1 Adapter for car radio |
02/24/1987 | US4646081 Radio paging receiver operable on a word scrolling basis |
02/24/1987 | CA1218415A1 Piezoelectric reed power supply for use in abnormal tire condition warning system |
02/19/1987 | DE3627194A1 Portable radio-frequency transmitter for keyless access systems, particularly on vehicles |
02/17/1987 | US4644321 Wireless power line communication apparatus |
01/29/1987 | DE3621990A1 Device for supplying transceivers inside a vehicle |
01/27/1987 | CA1217235A1 Display radio paging receiver for variable length messages |
01/21/1987 | EP0208711A1 Dc to dc converter. |
01/15/1987 | WO1987000368A1 Cable car with data transmission by cable |
01/08/1987 | DE3603098A1 A device having a number of receiving coils for avoiding a loss of reception due to the directional patterns of the transmitting and receiving coil in a signal transmission with magnetic field |
01/06/1987 | US4634956 DC to DC converter |
12/10/1986 | EP0204389A2 Guide wire communications system and method |
12/03/1986 | CN86100063A Dc to dc converter |
12/02/1986 | US4626904 Meter for passively logging the presence and identity of TV viewers |
12/02/1986 | US4626842 Display radio paging receiver for variable length messages |
11/26/1986 | EP0202408A2 A paging system, particularly for hotels |
11/25/1986 | US4625187 Radiating coaxial electric cable |
11/18/1986 | US4623889 Signal transmitting device |
11/12/1986 | CN86103021A Wide band inductive transdermal power and data link |
11/05/1986 | EP0200359A2 A wide band inductive transdermal power and data link |
11/04/1986 | US4621374 Circuit arrangement for processing, transmitting, and acoustically reproducing digitized audio-frequency signals |
11/04/1986 | US4621200 Control device including a conductively isolated depluggable controller |
10/21/1986 | CA1212999A1 Universal paging device with power conservation |
10/15/1986 | EP0197542A2 Selective call apparatus having display |
10/09/1986 | WO1986005675A1 Telemetry system for an implantable device |
10/08/1986 | CN86102554A Selective calling receiver equipment with indicator |
09/23/1986 | CA1211793A1 Transmitter for transmitting an fsk-modulated signal |
09/16/1986 | US4612668 FM wireless transmitter |
08/27/1986 | EP0192108A2 Control station |
08/26/1986 | CA1210465A1 Personnel identification marker coil assembly for isotropic flux linkage in a given plane |
08/20/1986 | EP0191019A1 Unit for transferring binary data between a movable data medium and a fixed station. |
08/12/1986 | US4605897 Apparatus and method for distance determination between a receiving device and a transmitting device utilizing a curl-free magnetic vector potential field |
08/12/1986 | CA1209710A1 Passive programmable transducer for dynamic coding |
07/30/1986 | EP0188925A1 Method and arrangement for data transmission between moving vehicles on a road |
07/30/1986 | CN86101271A 无线电话系统 Wireless telephone system |
07/29/1986 | CA1208821A1 High speed link for rotating display |
07/22/1986 | CA1208296A1 Dual-antenna transceiver |
07/17/1986 | WO1986004189A1 Dc to dc converter |
07/08/1986 | US4599615 Pager receiver comprising a memory storing a sequence of information signals to be tested |
07/08/1986 | CA1207393A1 Battery saver for a paging receiver or the like |
07/02/1986 | CA1207029A Radio communication systems for underground mines |
07/01/1986 | US4598325 Apparatus for transmitting digital signals across a rotary gap |
06/25/1986 | EP0185610A2 Device for contactless signal and energy transmission |
06/17/1986 | US4596041 Participant-identification recording and playback system |
06/17/1986 | CA1206206A1 Radio paging receiver having display control means |
06/17/1986 | CA1206205A1 Battery saver circuit for use with paging receiver |
05/27/1986 | US4591853 Paging receiver with a decoder-P-ROM |
05/14/1986 | EP0181314A1 Antenna system for use in tunnels for broadband signal transmission |
04/22/1986 | US4584707 Cordless communications system |
04/01/1986 | CA1202682A1 Pager receiver comprising a memory storing a sequence of information signals to be tested |
03/25/1986 | CA1202371A1 Paging receiver |
03/25/1986 | CA1202369A1 Transceiver |
03/04/1986 | US4573475 Receiving radiation from loops in a common plane for monitoring hospital patients leadlessly |
02/25/1986 | US4573048 High speed link for rotating display |
02/13/1986 | WO1986001058A1 Unit for transferring binary data between a movable data medium and a fixed station |
01/22/1986 | EP0168821A1 Pager with display |
12/10/1985 | US4558320 Apparatus for the contactless transmission of data or the like between two relatively rotating parts |
11/26/1985 | US4555792 Transmitter for transmitting an FSK-modulated signal |
11/21/1985 | EP0161545A1 Apparatus for locating persons for an electronic timepiece |
11/13/1985 | EP0160990A2 Inductive transmission of power and data |
11/05/1985 | CA1196388A1 Radio paging receiver having stored message protection means |
11/05/1985 | CA1196386A1 Battery saving circuit for paging receiver or the like |
10/29/1985 | US4550444 Facility for intermittent transmission of information between guideway wayside equipment and vehicles moving along the guideway |
10/22/1985 | US4549186 Coil assembly for substantially isotropic flux linkage in a given plane |
09/17/1985 | US4542532 Dual-antenna transceiver |
09/11/1985 | EP0154563A2 Dual-antenna transceiver |
08/28/1985 | EP0153239A1 Radiating system for broadcasting in road tunnels and powering equipment for this system |
08/20/1985 | US4536761 Radio paging receiver having display control means |
06/19/1985 | EP0145430A2 Signal transmission system |
06/11/1985 | US4523332 Battery saver circuit for use with paging receiver |
06/11/1985 | US4523192 Data processing network |
05/22/1985 | EP0141961A1 Radiating coaxial cable |
05/21/1985 | US4518961 Communication system message receiving device |
05/21/1985 | US4518958 Capacitively coupled machine tool safety having a self-test network |
05/07/1985 | CA1186741A1 Intermittent facility for transmitting information between a guideway and vehicles moving along this guideway |
04/24/1985 | EP0138090A2 Radio-wave transmission system of keyless entry system for automotive vehicle devices |
04/11/1985 | EP0120901A4 Signal reproduction apparatus. |
04/11/1985 | EP0061462A4 Multi-system portable paging device. |
04/09/1985 | US4510484 Piezoelectric reed power supply for use in abnormal tire condition warning systems |
03/26/1985 | US4507646 Radio communication system |
03/19/1985 | US4506386 Battery saver for a paging receiver or the like _ |