Patents for H04B 5 - Near-field transmission systems, e.g. inductive loop type (17,859) |
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11/22/2001 | WO2001088931A1 Inductive translator composed of two spools with respective cores |
11/21/2001 | CN1323106A Radio tourist guiding and explaining system for scenic spots |
11/20/2001 | US6320508 Arrangement for an antenna resonant circuit for contactless transmission systems |
11/20/2001 | US6320399 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 |
11/20/2001 | US6320169 Method and apparatus for magnetic induction heating using radio frequency identification of object to be heated |
11/20/2001 | US6319827 Integrated electronic micromodule and method for making same |
11/15/2001 | WO2001086967A2 Radio frequency detection and identification system |
11/15/2001 | WO2001086899A1 Device for carrying out wide-band electrical signal transmission with a mobile directional coupler |
11/15/2001 | WO2001086853A2 System for communication on a computer unit |
11/15/2001 | WO2001086832A1 Transmitter and receiver coil |
11/15/2001 | US20010041531 Hub and probe system and method |
11/15/2001 | US20010040507 Radio frequency detection and identification system |
11/15/2001 | DE10021671A1 Broadband signal transmission device with bi-directional transmission path, includes units mutually movable along selectable trajectory |
11/14/2001 | EP1154368A1 Reader having means for determining the number of electromagnetic transponders in the field of the reader |
11/14/2001 | EP1153362A1 Contactless data transmission system and method for contactlessly transmitting data |
11/14/2001 | EP1153317A2 Method of interrogating a radio frequency identification device |
11/14/2001 | EP1153316A2 Method of detecting a radio frequency identification device |
11/14/2001 | EP1153315A2 System for radio frequency identification |
11/14/2001 | CN1322391A Multiple loop antenna |
11/13/2001 | US6317045 Reproducing device |
11/13/2001 | US6317027 Auto-tunning scanning proximity reader |
11/08/2001 | WO2001084488A1 Data carrier having means for changing the resonant frequency of its resonant circuit |
11/08/2001 | WO2001083948A1 Logging sondes for use in boreholes |
11/08/2001 | US20010038280 Non-contact signal transmission apparatus |
11/07/2001 | CN1321005A Non-contact signal transmission device |
11/01/2001 | WO2001082254A1 Event driven information system |
11/01/2001 | WO2001082222A1 Frequency sensor for each interface of a data carrier |
11/01/2001 | WO2001041315A3 Arrangement for transmitting electrical signals and/or energy between parts that can be rotated in relation to each other |
11/01/2001 | US20010035729 Method of connecting a mobile control and/or monitoring unit to a machine and a control and/or monitoring unit for same |
11/01/2001 | CA2406735A1 Event driven information system |
10/31/2001 | EP1150314A2 Non-contact signal transmission apparatus |
10/31/2001 | EP1149313A1 An article identification tag, and a method for the detection thereof |
10/31/2001 | EP1149305A2 Radio frequency identification device |
10/31/2001 | DE10026174A1 Kapazitiver Bus Capacitive bus |
10/31/2001 | DE10026173A1 Arrangement for transferring electrical energy/signals has voltage-isolated primary circuit at each central unit connection point, external unit secondary circuits |
10/31/2001 | CN2457798Y Radio communication device for indoor telephone set |
10/31/2001 | CN1319966A Small amount payment system design scheme for electronic business of cellular mobile telecommunication network |
10/31/2001 | CN1319953A Radio induction system |
10/25/2001 | WO2001080444A1 Device for transferring electrical energy or signals |
10/25/2001 | WO2001080443A1 Arrangement for contactless transmission of electric signals or energy between several mobile units |
10/25/2001 | WO2001080442A2 Array for contactless transmission of electrical signals or energy |
10/25/2001 | US20010033164 Focused through-casing resistivity measurement |
10/24/2001 | EP1148406A2 Noncontact transmitting apparatus |
10/24/2001 | EP1147603A2 Antenna system for radio frequency identification |
10/24/2001 | CN1318936A Method of realizing wideband movable communication in fixed telecommunication network |
10/18/2001 | DE10107208A1 Equipment and method for locating containers and contents of containers provided with HF labels determines both x and y coordinates for these |
10/17/2001 | EP1145460A2 Device for transmitting signals in a vehicle |
10/17/2001 | EP1145371A1 Carrier with antenna for radio frequency identification |
10/17/2001 | EP1145203A1 Auto-tuning scanning proximity reader |
10/17/2001 | EP1145183A1 Games apparatus |
10/16/2001 | US6304613 Data carrier having rectifier and improved voltage limiter |
10/16/2001 | US6304043 Circuit arrangement for signal coupling between circuit parts having supply lines isolated from one another |
10/11/2001 | US20010029167 Nonconctact transmitting apparatus |
10/11/2001 | US20010028691 Data carrier having means for synchronization with a received data stream |
10/11/2001 | DE10016413A1 Transmitting and receiving system for signals on several frequency domains, for vehicle security system, comprises noise figure and ultra high-frequency circuits having suitable circuits working with common antenna |
10/10/2001 | CN1072819C Method for far-end requiring portable data card and requiring device |
10/09/2001 | US6300617 Magnetic digital signal coupler having selected/reversal directions of magnetization |
10/04/2001 | US20010026186 Semiconductor integrated circuit device and contactless electronic device |
10/04/2001 | EP1139280A2 Semiconductor integrated circuit device and contactless electronic device |
10/04/2001 | EP1138129A1 A method for use in a teleloop system, a teleloop system and an amplifier for a teleloop system |
10/04/2001 | EP1138128A1 Contactless electronic communication device with optional auxiliary power source |
10/04/2001 | EP1138098A1 Multiple loop antenna |
10/03/2001 | CN1316115A Electrical signal coupling device |
10/02/2001 | US6298271 Medical system having improved telemetry |
09/26/2001 | CN1315056A Integrated electronic micromodule and method for making same |
09/26/2001 | CN1315025A Non-contact IC medium and system using the same |
09/20/2001 | DE10110776A1 Linking mobile operational and monitoring unit to e.g. robotic machine or manipulator employs data exchange in assignment or logging-on process |
09/20/2001 | DE10012057A1 Identification/authentication data transfer method for connecting mobile telephone to radio network, involves establishing wireless short range communication between mobile telephones |
09/19/2001 | EP1134693A2 Non-contact communication apparatus and control method for non-contact communication apparatus |
09/19/2001 | EP1134690A1 Transmission power adaptation in a reader for electromagnetic transponders |
09/19/2001 | CN2449304Y Paging remote controlled anti-robbing alarm device |
09/18/2001 | US6291907 Magnetically coupled signal isolator using a faraday shielded MR or GMR receiving element |
09/13/2001 | WO2001067043A1 Ultra-sensitive magnetic field receiver capable of operating in high noise environments |
09/13/2001 | DE10010585A1 Verfahren zur Übertragung von Daten Method for transmitting data |
09/12/2001 | EP1131773A1 Contactless integrated circuit with reduced power consumption |
09/12/2001 | CN2447487Y Three-point fixed anti-theft electromagnetic door lock |
09/12/2001 | CN1312622A Radio telephone signal transmitting device |
09/11/2001 | US6289209 Wireless communication system, radio frequency communications system, wireless communications method, radio frequency communications method |
09/07/2001 | WO2001065718A2 Wireless power and communications cross-bar switch |
09/07/2001 | WO2001065479A2 Data carrier having means for synchronization with a received data stream |
09/07/2001 | WO2001065069A1 Oilwell casing electrical power pick-off points |
09/07/2001 | WO2001065068A1 Wireless reservoir production control |
09/07/2001 | WO2001065066A1 Wireless communication using well casing |
09/07/2001 | WO2001065063A1 Wireless downhole well interval inflow and injection control |
09/07/2001 | WO2001065062A2 Use of downhole high pressure gas in a gas-lift well |
09/07/2001 | WO2001065061A1 Electro-hydraulically pressurized downhole valve actuator |
09/07/2001 | WO2001065056A1 Wireless downhole measurement and control for optimizing gas lift well and field performance |
09/07/2001 | WO2001065055A1 Controlled downhole chemical injection |
09/07/2001 | WO2001065054A1 Power generation using batteries with reconfigurable discharge |
09/07/2001 | WO2001065053A1 Tracer injection in a production well |
09/07/2001 | CA2401705A1 Wireless downhole measurement and control for optimizing gas lift well and field performance |
09/06/2001 | US20010019303 Method for transmission of data |
09/05/2001 | EP1130556A1 Electronic detectable resonant tags, particularly RFID labels |
09/05/2001 | EP1130531A2 Method for data transmission |
09/05/2001 | CN1070672C Reference channel maintaining method of wide area paging system |
09/04/2001 | US6285858 Electronic toll collection system and method featuring antenna arrangement |
09/04/2001 | US6285284 Theft preventive tag and method for attaching the same |
08/29/2001 | EP1127657A1 Apparatus for detecting operation of machine tool |
08/29/2001 | EP1127469A1 Rfid tag having parallel resonant circuit for magnetically decoupling tag from its environment |
08/29/2001 | CN1310833A RFID radio frequency identification system for detecting low power resonant tags |