| Patents for H04B 5 - Near-field transmission systems, e.g. inductive loop type (17,859) |
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| 02/09/1999 | US5870067 Contactless data/power bus |
| 02/04/1999 | DE19732503A1 HF signal transmission, radiation and reception device |
| 02/03/1999 | CN1206999A Method for interfacing local station with control station by modem |
| 01/28/1999 | WO1998048526A3 Time-multiplexed short-range magnetic communications |
| 01/27/1999 | CN1206305A Stabilized data correcting function in wireless selective call receiver |
| 01/26/1999 | US5864580 Miniature wireless modem |
| 01/26/1999 | US5864302 Transmitting and receiving system |
| 01/20/1999 | EP0891597A1 Portable electronic object for remote information exchange |
| 01/20/1999 | CN2305018Y 无线耳机 Wireless Headset |
| 01/19/1999 | US5862484 Wide area paging sevice processing method and apparatus of a radio paging system |
| 01/19/1999 | US5862200 Ground fault detector for T1 span equipment |
| 01/19/1999 | US5862174 Data storage medium |
| 01/14/1999 | DE19729722A1 Leasable security box facility e.g. safe box for bank |
| 01/14/1999 | DE19729662A1 Information transfer system for automatic cooking and frying appliance |
| 01/13/1999 | CN1204899A Cradle device having rotating hinge in pager |
| 01/12/1999 | US5859873 Method and arrangement for non-contact transmission of measured values |
| 01/07/1999 | EP0787339A4 Article-information display system using electronically controlled tags |
| 12/30/1998 | EP0887783A2 Moving display |
| 12/29/1998 | US5854844 For individual exposition of exhibits to visitors |
| 12/23/1998 | EP0885502A1 Authentication system and method for a remote keyless entry system |
| 12/16/1998 | EP0884887A2 Paging device |
| 12/16/1998 | CN2301015Y Calling device for cipher money drawing |
| 12/09/1998 | EP0883078A2 Clock input circuit |
| 12/09/1998 | CN2300216Y Wireless and powerless document signal transmission system |
| 12/03/1998 | DE19822989A1 Portable transmission system for key-free entry system using voice signals |
| 12/02/1998 | EP0880827A1 Digital wireless speaker system |
| 12/02/1998 | EP0653144B1 Concert audio system |
| 12/01/1998 | US5845220 Communication method and apparatus with signals comprising scalar and vector potentials without electromagnetic fields |
| 12/01/1998 | US5844499 Method and apparatus for recovering erased calling messages in radio pager |
| 12/01/1998 | US5844482 Tagging system using motion detector |
| 11/26/1998 | WO1998053435A1 Deactivation device with biplanar deactivation |
| 11/26/1998 | WO1998053420A1 Contactless communication system by induction process between a terminal and different types of portable objects |
| 11/26/1998 | WO1998053343A2 Tagging system using motion detector |
| 11/25/1998 | EP0879424A1 Radio frequency identification reader |
| 11/25/1998 | CN1200213A Wireless powered communication device using power signal sampling and method |
| 11/24/1998 | US5841123 Passive card without contact |
| 11/24/1998 | US5841122 For preventing unauthorized access |
| 11/19/1998 | WO1998052295A1 Short-range wireless audio communications using induction |
| 11/19/1998 | WO1998052172A2 Plug-and-socket connection for power and data transmission |
| 11/19/1998 | WO1998052155A1 Methods of enhancing electromagnetic radiation properties of encapsulated circuit, and related devices |
| 11/19/1998 | WO1998052142A1 Enhanced identification system |
| 11/19/1998 | CA2289207A1 Enhanced identification system |
| 11/18/1998 | CN1199312A Call reception control method in wide area radio pager |
| 11/18/1998 | CN1199310A Circuit and method for providing simultaneous transmission of page data paging system |
| 11/17/1998 | US5838254 Transmission-reception time correction system |
| 11/17/1998 | US5838235 Station, a passive portable object and apparatus for the remote exchange of information between the passive portable object and the station |
| 11/17/1998 | US5837982 Antenna for non-contact IC card gate facility |
| 11/11/1998 | CN1198621A Telecommunication system and method of elecommunication |
| 11/10/1998 | US5835010 Automatic answering system using transponder |
| 11/05/1998 | DE19717505A1 Transponder communication system for identification e.g. of livestock |
| 11/03/1998 | US5832024 Digital wireless speaker system |
| 11/03/1998 | US5831544 Method and apparatus for saving battery power in a paging receiver |
| 11/03/1998 | US5831348 Secondary circuit device for wireless transmit-receive system and induction coil for wireless transmit-receive system |
| 10/29/1998 | WO1998048526A2 Time-multiplexed short-range magnetic communications |
| 10/27/1998 | US5828703 Data carrier capable of increasing data transmission rate |
| 10/22/1998 | WO1998047263A1 Data communication equipment, data communication system, and data communication method |
| 10/22/1998 | DE19719730C1 Plug connector for use in explosive area |
| 10/21/1998 | EP0872032A1 Short-range magnetic communication system |
| 10/21/1998 | EP0872031A1 Data-transfer method and device with multi-channel transmitters and wide-band portable receivers |
| 10/20/1998 | US5825299 Object identification system |
| 10/14/1998 | EP0870369A1 Enhanced concert audio process utilizing a synchronized headgear system |
| 10/13/1998 | US5822689 Circuit and method using data synchronization for battery power conservation in a paging receiver |
| 10/13/1998 | US5822440 Enhanced concert audio process utilizing a synchronized headgear system |
| 10/13/1998 | US5821874 Messaging terminal with voice notification |
| 10/13/1998 | US5821632 Arrangement, in particular in vehicles, for transmitting electric signals by connecting lines |
| 10/08/1998 | WO1998044652A1 Installation for electronic data display |
| 10/08/1998 | DE19814460A1 Signal generation and transmission system especially for motor vehicles |
| 10/07/1998 | EP0869625A1 Low power wireless network |
| 10/06/1998 | US5818822 Wireless local area network having interface at each station which ignores messages not retransmitted by repeater |
| 10/01/1998 | DE19737579A1 Secondary side circuit for wireless transmission and reception system |
| 10/01/1998 | DE19705301C1 Einrichtung zur berührungslosen Informations- und Energieübertragung Device for contactless information and energy transfer |
| 09/30/1998 | EP0867849A2 Mobile unit support system to detect movement by means of a magnetic sensor |
| 09/30/1998 | EP0867078A1 Apparatus for bidirectional data and unidirectional power transmission between master and slave units using inductive coupling |
| 09/29/1998 | US5814900 Device for combined transmission of energy and electric signals |
| 09/24/1998 | CA2232963A1 Measuring method for detecting a short-circuit between the turns of a coil integrated on a chip, and integrated circuit structure adapted to such a measuring method |
| 09/24/1998 | CA2231306A1 Improved monolithic integrated circuit and antenna coil structure comprising a peripheral protective ring |
| 09/22/1998 | US5812598 Hearing assist system employing time variant modulation transmission to hearing aid |
| 09/16/1998 | EP0865170A1 Device for the acoustic reproduction of wirelessly transmitted audio informations of a HiFi-installation |
| 09/16/1998 | EP0531384B1 Electric power and data signal transmission system |
| 09/16/1998 | CN1193224A Method for controlling radio signal power according to variation of frequency and temp. in paging signal-emission machine |
| 09/15/1998 | US5809429 Radiating coaxial cable and radio communication system using same |
| 09/15/1998 | US5808542 Alarm tone generating circuit for a radio paging receiver |
| 09/09/1998 | EP0862524A1 Non-contacting device for the transmission of signals between vehicle parts which moves linearly with respect to each other |
| 09/09/1998 | CN1192833A Linear coverage area antenna system for a CDMA communication system |
| 09/02/1998 | EP0862306A2 Device for contactless transmission of DTMF signals |
| 09/02/1998 | EP0862305A2 Device for contactless transmission of DTMF signals |
| 09/02/1998 | EP0862241A2 Strip-type radiating cable for a communications system |
| 09/02/1998 | CN1192061A Strip-type radiating cable for communications system |
| 08/26/1998 | CN2289351Y 呼叫器装置 Pager device |
| 08/26/1998 | CN1039613C Apparatus for adapting electrical communications port to optical communications port |
| 08/20/1998 | WO1998036507A1 Method for contactless information and power transmission |
| 08/18/1998 | US5796827 System and method for near-field human-body coupling for encrypted communication with identification cards |
| 08/12/1998 | EP0857377A1 Embedded data link and protocol |
| 08/12/1998 | CN1190506A Shot-range magnetic communication system |
| 08/11/1998 | US5793289 Electronic article surveillance system |
| 08/05/1998 | CN1189748A Channel identification by multichannel selective call receiver |
| 08/05/1998 | CA2226644A1 Base station for a contactless interrogation system comprising a phase locked and voltage controlled oscillator |
| 07/30/1998 | DE19701357A1 Vorrichtung zur kontaktlosen Energieübertragung zwischen gegeneinander beweglichen Teilen Apparatus for contactless energy transfer between mutually movable parts |
| 07/30/1998 | DE19700110A1 Contactless electrical energy and signal transmission device |
| 07/29/1998 | EP0855674A2 Contactless IC card |