Patents for H04B 5 - Near-field transmission systems, e.g. inductive loop type (17,859) |
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08/19/2004 | WO2004070966A1 Communication device and communication system |
08/19/2004 | US20040159711 Data carrier having a communication resonant circuit and having means for changing the resonant frequency of this resonant circuit in either sense |
08/19/2004 | DE10303456A1 Elektrisches Gerät Electrical equipment |
08/19/2004 | DE10302801A1 Anordnung zur Abstrahlung elektromagnetischer Wellen unter Verwendung eines Koaxialkabels Arrangement for radiating electromagnetic waves using a coaxial cable |
08/18/2004 | CN1521690A USB mouse having a blue tooth transmission interface |
08/18/2004 | CN1521605A USB keyboard with bluetooth transmission interface |
08/18/2004 | CN1162984C Non-contact signal transmission device |
08/17/2004 | US6778070 Remote transmission apparatus operating by inductive coupling |
08/17/2004 | US6777829 Rectifier utilizing a grounded antenna |
08/12/2004 | WO2004068737A1 Arrangement for radiating electromagnetic waves while using a coaxial cable |
08/12/2004 | WO2004068638A2 Power line coupling device and method of using the same |
08/12/2004 | US20040157557 System for a dynamic ad-hoc wireless network |
08/12/2004 | US20040157556 System for intrusion detection |
08/12/2004 | US20040156388 System for maintaining quality of service |
08/12/2004 | US20040156370 System for evolutionary adaptation |
08/12/2004 | US20040156333 System for evolutionary service migration |
08/12/2004 | US20040156327 System employing wireless means for governing operation of an apparatus and methods of use therefor |
08/12/2004 | US20040155755 Low-power passive transponder |
08/12/2004 | US20040155708 Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristics |
08/12/2004 | DE10081727B3 Mobiles Karaoke-System, Sender, Cartridge und Verfahren zur Verhinderung unbefugten Zugriffs Portable Karaoke System, Transmitter, cartridge and procedures to prevent unauthorized access |
08/11/2004 | EP1445730A1 Electronic device with communication capability |
08/11/2004 | EP1444647A1 Radio frequency identification systems for asset tracking |
08/11/2004 | EP1224607B1 Method for selecting and writing into rfid-transponders |
08/11/2004 | CN1520666A Communication device having two-mode controlled isolaton circuit for power transport and bidirectional communication |
08/11/2004 | CN1520210A Method and device system for driving peripheral equipment through connection of mobile phone |
08/11/2004 | CN1520138A Device for making blue teeth earphone switch in signal arbitrarily and the control method |
08/11/2004 | CN1520124A Network card capable of combining with wireless transmission |
08/11/2004 | CN1520056A Blue teeth communication system capable of combining with network and voicespeech telephone |
08/11/2004 | CN1161932C Network connector for realizing multiple electronic equipment wireless internet communication |
08/11/2004 | CN1161896C Near range communication vehicle carrier |
08/05/2004 | WO2004066522A1 Radio communication method and radio communication terminal |
08/05/2004 | US20040150387 Position determination based on phase difference |
08/04/2004 | EP1443678A1 Apparatus for inductive transmission of electrical signals |
08/04/2004 | EP1443677A1 Electronic device |
08/04/2004 | EP1443414A1 Communication system and method, information processing terminal and method, and information processing apparatus and method |
08/04/2004 | EP1145183B1 Games apparatus |
07/29/2004 | US20040144530 Toroidal choke inductor for wireless communication and control |
07/28/2004 | EP1441305A1 Ic card; information processing terminal; trilateral data communication system; and method |
07/28/2004 | EP1185962A4 Low-power radio frequency identification reader |
07/28/2004 | CN1516435A Method for making data back-supplement by utilizing two-way transmission of palmtop |
07/28/2004 | CN1516351A Method for implementing data flow model playback on Bluetooth equipment and its system |
07/27/2004 | US6768373 Circuit configuration for demodulating a voltage which is ASK modulated by altering the amplitude between a low level and a high level |
07/22/2004 | WO2004062307A1 Information processing apparatus, devices thereof, and communication device |
07/22/2004 | WO2004062131A1 Method and apparatus for data transfer |
07/22/2004 | US20040142599 Power line coupling device and method of using the same |
07/22/2004 | US20040140896 Portable information device |
07/21/2004 | EP1439487A2 Portable information device |
07/21/2004 | CN1514551A Radio mutual action type communication system |
07/20/2004 | US6765959 Communication method of contactless ID card and integrated circuit used in communication method |
07/20/2004 | US6765473 Access system for vehicles |
07/15/2004 | US20040136255 Current integrating sense amplifier for memory modules in RFID |
07/14/2004 | EP0986798B1 Deactivation device with biplanar deactivation |
07/14/2004 | EP0901670B1 Data exchange system by contactless communication between a terminal and remote powered portable objects |
07/14/2004 | CN2626139Y Onsite Blue-Tooth communication apparatus |
07/14/2004 | CN2626138Y Onsite Blue-Tooth controller |
07/14/2004 | CN2626137Y Electromagnetic induction voice wireless communication apparatus |
07/14/2004 | CN1512728A Method and device for distributing notice between cooperative equipment and equipment channels |
07/14/2004 | CN1512677A Information household electric appliance control system |
07/14/2004 | CN1512258A Automatic following camera shooting device |
07/08/2004 | US20040130500 Non-contact communication medium |
07/08/2004 | US20040130425 Enhanced RF wireless adaptive power provisioning system for small devices |
07/08/2004 | US20040129785 Contactless SIM card carrier with detachable antenna and carrier therefore |
07/07/2004 | EP1435062A1 Modulator for electromagnetic signals transmitted by a contactless transmission/reception system |
07/07/2004 | EP1435056A1 Rfid time tracking |
07/07/2004 | EP0958553B1 Queue management system |
07/07/2004 | CN2624564Y Flush type bluetooth module structure of mobile telephone |
07/07/2004 | CN1511383A Device for inductive transmission of electrical power |
07/07/2004 | CN1510955A Mobile communication ternminal servo, communication system, communication controlling method and programm |
07/07/2004 | CN1510934A Blue tooth based Tianditong intellectual telephone system |
07/06/2004 | US6758405 Article with retroreflective and radio frequency-responsive features |
07/06/2004 | US6758277 System and method for fluid flow optimization |
07/01/2004 | WO2004056006A1 Communication system, communication apparatus and communication method |
07/01/2004 | WO2004056005A1 Communication system, communication method, and data processing apparatus |
07/01/2004 | US20040128310 Method and apparatus for distributing notification among cooperating devices and device channels |
07/01/2004 | DE4125143C5 Einrichtung zur kontaktlosen Übertragung von Wechselsignalen Device for contactless transmission of alternating signals |
07/01/2004 | DE10258847A1 Datenübertragung zwischen einem Chassis und einem an dem Chassis bewegbar angeordneten Sitz Data transmission between a chassis and a movably arranged on the chassis seat |
06/30/2004 | CN1509108A Wireless earphone for mobile phone |
06/30/2004 | CN1508985A Earphone based on bluetooth technology |
06/30/2004 | CN1508984A Earphone with signal mdicating lamp |
06/30/2004 | CN1155916C Wayside radio equipment |
06/24/2004 | WO2004054179A1 Connection structure of twisted pair wires and near magnetic field non-contact communicaiton system ________________ |
06/24/2004 | US20040121737 Device for transmitting digital signals among mobile units |
06/24/2004 | US20040121736 Device for transmitting digital signals among mobile units with analog filtering |
06/23/2004 | EP1432140A2 Transceiver capable of causing series resonance with parasitic capacitance |
06/23/2004 | EP1431904A2 Communication apparatus and communication method for determining communication identifiers |
06/23/2004 | EP1431903A2 Detector |
06/23/2004 | CN2621362Y Multi-frequency point information transmitting/receiving apparatus for group tour |
06/22/2004 | CA2134429C Device with spectral purity for the remote exchange of information between a portable object and a station |
06/17/2004 | US20040117515 Distributing system |
06/17/2004 | US20040116112 Apparatus, and associated method, for reporting a measurement summary in a radio communication system |
06/17/2004 | US20040116099 Device for receiving digital signals |
06/17/2004 | US20040116094 Apparatus and method for input channel isolation within an electronic test instument |
06/17/2004 | US20040116074 Communication apparatus and communication method |
06/17/2004 | US20040113490 Data transmission between a chassis and a seat movably arranged on the chassis |
06/17/2004 | DE10353373A1 Speicherkennung und Lesevorrichtung Memory tag and reader |
06/17/2004 | DE10255376A1 Inductive structural element, useful for the transfer of energy or data from primary to secondary circuit, comprising air gaps and a frame type core |
06/16/2004 | EP1429568A1 Mobile communication terminal, server, communication system, communication control method, and communication control program |
06/16/2004 | EP1429471A1 Communication system using leakage transmission line |
06/16/2004 | EP1429417A1 Reader and transponder within housings |
06/16/2004 | EP1284004B1 Inductive translator composed of two spools with respective cores |