| Patents for H04B 5 - Near-field transmission systems, e.g. inductive loop type (17,859) |
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| 08/29/2001 | CN1070324C Radio receiving & transmitting unit |
| 08/28/2001 | US6282407 Active electrostatic transceiver and communicating system |
| 08/23/2001 | WO2001061622A1 System for wireless, bi-directional transfer of electric signals |
| 08/23/2001 | US20010016479 Wireless communication system, radio frequency communications system, wireless communications method, radio frequency communications method, and backscatter radio frequency communications system |
| 08/23/2001 | US20010015697 Adaptation of the transmission power of an electromagnetic transponder reader |
| 08/23/2001 | DE10005169A1 Identification and lap time noting device used in race tracks, has antennas with overlapping oblong conductor loops arranged in race course |
| 08/22/2001 | EP0980603B1 Plug-and-socket connection |
| 08/22/2001 | CN2444347Y Communication, protecting and alarm device with phone receiving system for train |
| 08/22/2001 | CN1309793A Device for contactless transmission of data |
| 08/21/2001 | US6278419 Moving display |
| 08/16/2001 | WO2001059700A2 An identification device for providing information regarding a container |
| 08/16/2001 | WO2001059258A1 A method and apparatus for the optimal predistortion of an electromagnetic signal in a downhole communication system |
| 08/16/2001 | WO2001058252A2 Implantable inductively programmed temperature sensing transponder |
| 08/16/2001 | US20010014622 Data carrier, game machine using data carrier, information communication method, information communication, automated travelling control system and storing medium |
| 08/16/2001 | US20010014117 Procedure for increasing the manipulation security for a bi-directional contactless data transmission |
| 08/16/2001 | EP1124197A2 Procedure to increase safety in a bi-directional, contactless data transfer |
| 08/16/2001 | DE10005503A1 Increasing manipulation security for bidirectional, contactless data transfer for car door lock |
| 08/15/2001 | CN2443549Y 无线服务呼叫系统 Wireless service call system |
| 08/15/2001 | CN1069797C Highly stable frequency generator |
| 08/14/2001 | US6275681 Wireless electrostatic charging and communicating system |
| 08/09/2001 | DE10003932A1 Electrical line arrangement especially for communication networks in vehicle, has inductive conductor loop coupling structures formed at conductor section of connection zones, relatively-aligned in switching state |
| 08/08/2001 | EP1122969A1 Keyless entry system |
| 08/08/2001 | EP1121763A1 A method to use acoustic signals for computer communications |
| 08/07/2001 | US6272321 Method for tuning an oscillating receiver circuit of a transponder built into a RFID system |
| 08/07/2001 | US6272320 Base station for a contactless interrogation system comprising a phase locked and voltage controlled oscillator |
| 08/07/2001 | US6271807 Method of initializing, controlling and updating electronic display tags and related controller therefor |
| 08/02/2001 | WO2001055555A1 Choke inductor for wireless communication and control in a well |
| 08/02/2001 | WO2001055554A1 Downhole wireless two-way telemetry system |
| 08/02/2001 | WO2001055553A1 System and method for fluid flow optimization in a gas-lift oil well |
| 08/01/2001 | EP1120734A2 Integrated circuit for low frequency signal extraction during contactless data transmission |
| 08/01/2001 | EP1120733A1 Apparatus for identifying article |
| 08/01/2001 | EP0640254B1 A non-contact power distribution system |
| 07/31/2001 | CA2219270C Encryption for modulated backscatter systems |
| 07/26/2001 | WO2001054048A2 Data carrier having a controllable carrier-signal receiving-means configuration |
| 07/26/2001 | WO2000043944A3 Method of interrogating a radio frequency identification device |
| 07/26/2001 | DE10002501A1 Integrierte Schaltungsanordnung zur NF-Signalgewinnung bei kontaktloser Datenübertragung Integrated circuit arrangement for NF-signal acquisition in contactless data transmission |
| 07/26/2001 | DE10000756A1 Data transmission method for communication between interrogation device and automobile has different frequencies used for interrogation signal and transmitted data |
| 07/25/2001 | EP0879424B1 Radio frequency identification reader |
| 07/25/2001 | CN1305297A Method for making RF unit individual in space and mobile telephone equipment |
| 07/25/2001 | CN1305272A Wireless sound system |
| 07/24/2001 | US6266052 Power and information distribution system for article display or storage areas and related method |
| 07/24/2001 | US6265655 Signal-transmitting connection with protection against magnetic field interference |
| 07/24/2001 | CA2213619C Miniature wireless modem |
| 07/19/2001 | US20010008810 Electrical signal coupling device |
| 07/19/2001 | DE10007206A1 Positioning cylinder; has piston rod, detectors on cylinder casing and evaluation circuit and uses high frequency field to transmit data and supply energy between detectors and evaluation circuit |
| 07/18/2001 | EP1117068A1 Noncontact ic medium and system using the same |
| 07/18/2001 | EP1116157A1 Communication device and transponder |
| 07/17/2001 | US6262903 Direct-current power supply circuit having control sections with at least one control section having priority over another control section |
| 07/11/2001 | CN2439144Y Articles away remote alarmer |
| 07/11/2001 | CN1303187A Portable voice frequency listening equipment |
| 07/05/2001 | US20010006536 Digital data transmitting apparatus |
| 07/04/2001 | CN1302381A Radio frequency identification tag device with sensor input |
| 07/03/2001 | CA2008549C Information separation device |
| 06/28/2001 | US20010005138 Operation diagnosing device, article identification device for use therewith, and operation diagnosing system |
| 06/27/2001 | EP1110417A1 Electrostatic radio frequency identification system having contactless programmability |
| 06/21/2001 | DE19961772A1 Universal circuit has magnetic component controlled by semiconducting switch and modulator at primary winding, by digital modulator at secondary isolating winding(s) |
| 06/19/2001 | US6249229 Electronic article security system employing variable time shifts |
| 06/13/2001 | EP1107472A2 Digital data transmitting apparatus using inductive coupling |
| 06/13/2001 | DE19957621A1 Anordnung zur Übertragung elektrischer Signale zwischen bewegten Teilen mit verringerter Wegezahl Arrangement for transmitting electrical signals between moving parts with a reduced number of ways |
| 06/13/2001 | DE10053505A1 Electromagnetic induction connector for outlet plug, has primary and secondary coils that enclose one among pair of primary and secondary core legs whose end faces are in mutual opposition |
| 06/07/2001 | WO2001041326A1 A communications system |
| 06/07/2001 | WO2001041319A1 Component field antenna for induction borehole logging |
| 06/07/2001 | WO2001041316A2 System for transmitting electric signals between moving parts with a reduced number of paths |
| 06/07/2001 | WO2001041315A2 Arrangement for transmitting electrical signals and/or energy between parts that can be rotated in relation to each other |
| 06/06/2001 | CN1298229A Identification method for establishing connection between equipments |
| 06/05/2001 | US6243045 Removal data storing medium having loop antenna |
| 06/05/2001 | US6243012 Inexpensive modulated backscatter reflector |
| 06/05/2001 | CA2221905C Iq combiner technology in modulated backscatter system |
| 06/05/2001 | CA2054674C Pneumatic tire having an integrated circuit transponder and pressure transducer |
| 05/31/2001 | DE19957408A1 Coffin life monitoring system allows rapid exhumation of people mistakenly buried alive |
| 05/30/2001 | EP1104117A1 Radiocommunication installation having lossy cables as radiating elements |
| 05/29/2001 | US6239720 Circuit and method for providing simultaneous transmission of page data in a paging system |
| 05/26/2001 | CA2326640A1 Mobile communication system using loss cables as transmission elements |
| 05/23/2001 | EP1102215A2 Data transmission apparatus and data reception apparatus |
| 05/23/2001 | EP1101671A1 Method and system of secured bidirectional transmission of data |
| 05/23/2001 | EP1101252A1 Electrical signal coupling device |
| 05/23/2001 | CN1296438A Method for transmitting data between small electrical device and supplementary electrical device which can be connected thereto, and devices configured according |
| 05/22/2001 | US6236688 Receiving circuit |
| 05/22/2001 | US6234902 Data carrier, game machine using data carrier, information communication method, information communication, automated travelling control system and storing medium |
| 05/17/2001 | WO2001035606A1 Non-contact signal analyzer |
| 05/17/2001 | WO2001034049A2 Surgical communication and power system |
| 05/17/2001 | DE19948454A1 Foil conductor for electrical and electronic control devices used in vehicles, has coupling region with winding ferrite paths on spatially arranged conductor paths for inductive transmission on two main areas |
| 05/16/2001 | EP1100218A2 Portable audio listening apparatus |
| 05/16/2001 | EP1099204A2 Access system for vehicles |
| 05/16/2001 | EP1099200A1 Rfid system for detecting low power resonant tags |
| 05/15/2001 | US6233336 Inductive coupling interface for electronic device |
| 05/10/2001 | WO2001033725A1 Information communication system, noncontact ic card, and ic chip |
| 05/10/2001 | DE19950145C1 Verfahren zum Auslesen und Beschreiben von RFID-Transpondern A method for reading and writing of RFID transponders |
| 05/09/2001 | EP1097479A1 Integrated electronic micromodule and method for making same |
| 05/09/2001 | CN1294765A Device for controlling impedance returned on electronic label antenna |
| 05/09/2001 | CN1294717A High gain input stage for radio frequency identification (RFID) transponder and method therefor |
| 05/08/2001 | US6230029 Modular wireless headset system |
| 05/08/2001 | US6229445 RF identification process and apparatus |
| 05/02/2001 | CN1293732A Radio frequency identification security device |
| 05/01/2001 | US6225952 Portable compact radio terminal device |
| 04/26/2001 | WO2001029753A1 Method for selecting and writing into rfid-transponders |
| 04/25/2001 | CN1292906A Data medium for contactless reception of amplitude-modulated signals |
| 04/25/2001 | CN1292905A Method, system and device for transferring, by electromagnetic linkage, data between readers and nomadic objects |
| 04/24/2001 | US6223020 Destination non-limiting bidirectional radio paging system and method |
| 04/24/2001 | US6223018 Intra-body information transfer device |