| Patents for H04B 5 - Near-field transmission systems, e.g. inductive loop type (17,859) |
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| 04/08/2004 | DE10245589A1 Vorrichtung zur Übertragung digitaler Signale zwischen beweglichen Einheiten Apparatus for transmitting digital signals between moving units |
| 04/08/2004 | DE10245505A1 Device for broadband transmission of digital signals between movable units has analog filter(s) optionally associated with transmitter/receiver for adapting to data path transmission characteristics |
| 04/08/2004 | DE10245449A1 Vorrichtung zur Übertragung digitaler Signale zwischen beweglichen Einheiten mit Beeinflussung der spektralen Eigenschaften Apparatus for transmitting digital signals between moving units with influencing the spectral properties |
| 04/07/2004 | EP1405477A1 Communication device having a two-mode controlled isolation circuit for power transport and bidirectional communication |
| 04/07/2004 | CN1145372C Radio paging receiver and method for receiving unnormal radio paging signal |
| 04/07/2004 | CN1145338C Mobile communication machine |
| 04/07/2004 | CN1145128C Low-power radio frequency identification reader |
| 04/06/2004 | US6717517 Event driven information system |
| 04/06/2004 | US6717382 Method of connecting a mobile control and/or monitoring unit to a machine and a control and/or monitoring unit for same |
| 04/06/2004 | US6715550 Controllable gas-lift well and valve |
| 04/01/2004 | WO2002065380A8 Radio frequency identification architecture |
| 04/01/2004 | US20040063435 Wireless information processing system with wireless information recording medium and wireless information processing apparatus, and communication method therefor |
| 04/01/2004 | US20040060703 Controlled downhole chemical injection |
| 04/01/2004 | DE10244665A1 Circuit structure for electroplate-separated transmission of an analog input quantity uses a signal transmission component with voltage input/output to adapt voltage between input/output |
| 04/01/2004 | DE10244115A1 Vorrichtung zur Datenübertragung, insbesondere im Schienenverkehr Apparatus for data transmission, especially in rail |
| 03/31/2004 | CN1485991A Garage door opener with door status display |
| 03/31/2004 | CN1485779A Network driving and managing Method |
| 03/31/2004 | CN1144151C Method, system and device for transferring, by electromagnetic linkage, data between readers and nomadic objects |
| 03/25/2004 | WO2004025551A1 Semiconductor integrated circuit and noncontact information medium |
| 03/25/2004 | WO2004025547A1 Reader/writer and automatic ticket checker for checking ticket by reader/writer |
| 03/25/2004 | WO2003069550A3 Electromagnetic transponder with a programmable code |
| 03/25/2004 | US20040056760 Radio IC tag reader, radio IC tag read apparatus and radio IC tag read system |
| 03/25/2004 | DE10241554A1 Digital signal receiver for signal transmission between relatively movable components, e.g. of crane, radar device or computer tomograph, with adjustment of digitizer dependent on measured signal quality |
| 03/24/2004 | CN1484187A RFID -tag, RFID-tag and interrogator (reader/writer) data processing method |
| 03/24/2004 | CN1484128A Method for coordinating built-in bluetooth module |
| 03/24/2004 | CN1143452C Antenna-gain diversity |
| 03/24/2004 | CN1143237C System for the transmission of data from a data carrier to a station by means of at least one other auxiliary carrier signal |
| 03/23/2004 | US6708891 Data carrier having a communication resonant circuit and having means for changing the resonant frequency of this resonant circuit in either sense |
| 03/18/2004 | WO2003107295A3 State remote reading device, and uses thereof |
| 03/18/2004 | WO2003061366A3 Inventory management system |
| 03/18/2004 | US20040052034 Rfid tag installing structure, rfid tag installing method and rfid tag communication method |
| 03/18/2004 | US20040051627 Modulator for electromagnetic signals transmitted by a contactless transmission/reception system |
| 03/17/2004 | EP1398747A2 Apparatus for transmitting data, especially for railway traffic |
| 03/17/2004 | EP1398725A2 RFID tag reader |
| 03/17/2004 | CN1483182A Modulator for electromagnetic signals transmitted by a contactless transmission/reception system |
| 03/17/2004 | CN1482786A Method for implementing telephone conference with wireless data transmitting-receiving function and telephone conference system thereof |
| 03/17/2004 | CN1142666C Method and apparatus for realizing wideband movable communication in fixed telecommunication network |
| 03/11/2004 | WO2004021601A1 Wireless information retrieval and content dissemination system and method |
| 03/11/2004 | WO2004021270A1 Method for regulating the input signal of a non-contact transponder |
| 03/11/2004 | WO2004021257A1 Method of inventorying transponders by means of a communication station |
| 03/11/2004 | US20040048596 Method and apparatus for extending high bandwidth communication services to the edge of the network |
| 03/11/2004 | US20040046645 Enhanced identification system |
| 03/11/2004 | DE20215250U1 Device for inductively coupling electrical signals on a voltage supply line for the transmission of signals and data comprises a strap made from nanocrystalline or amorphous ferromagnetic material consisting of two parts |
| 03/10/2004 | EP1395754A1 Single-step or multi-step piston compressor |
| 03/10/2004 | EP1276968B1 Logging sondes for use in boreholes |
| 03/10/2004 | CN1481082A Antenna system of monitring electronic article, and its configuration |
| 03/09/2004 | US6704542 Hub and probe system and method |
| 03/09/2004 | US6703921 Operation in very close coupling of an electromagnetic transponder system |
| 03/04/2004 | WO2004019055A1 An identification device and identification system |
| 03/04/2004 | US20040041726 Communication system using leakage transmission line |
| 03/04/2004 | US20040041025 Portable information processing apparatus |
| 03/03/2004 | EP1393246A1 Data carrier comprising an integrated circuit with an integrated main capacitor and integrated additional capacitors |
| 03/03/2004 | EP1393245A1 Communication between a transponder and an interrogator |
| 03/03/2004 | EP1393239A1 Transponder system with a communication station comprising station identification signal generating means |
| 03/03/2004 | EP1234388B1 Arrangement for transmitting electrical signals and/or energy between parts that can be rotated in relation to each other |
| 03/03/2004 | EP1147603B1 Antenna system for radio frequency identification |
| 03/03/2004 | EP1068652B1 Device for controlling the impedance returned on an electronic label antenna |
| 03/03/2004 | EP1023691B1 Contactless proximity automated data collection system |
| 02/26/2004 | WO2003069816A3 Near-field spatial multiplexing |
| 02/26/2004 | US20040039462 Multi-channel wireless professional audio system using sound card |
| 02/26/2004 | US20040036626 Interrogation device and method for scanning |
| 02/25/2004 | CN1477902A Wireless multichannel sound system using sound effect card |
| 02/19/2004 | WO2004015885A1 Wireless power supply system for small devices |
| 02/19/2004 | WO2003096139A3 Connecting cable for contactless data and power transmission |
| 02/19/2004 | DE10138870B4 Fahrzeugtür-Entriegelungsbetätigungssystem Vehicle door Entriegelungsbetätigungssystem |
| 02/18/2004 | EP0651925B1 Frequency hopping time-diversity communications systems and transceivers for local area networks |
| 02/17/2004 | US6693562 System and a method for locating a rail vehicle at points along a rail track equipped with beacons and an antenna adapted to be fitted to the system |
| 02/12/2004 | WO2004013985A1 Method and apparatus for performing high quality fast predictive motion search |
| 02/12/2004 | WO2004013807A1 Transponder with two supply voltages |
| 02/12/2004 | WO2004013806A1 Transponder with a controllable power-on-reset circuit |
| 02/12/2004 | US20040029531 Self-diagnosing transmission system |
| 02/12/2004 | US20040028133 Method and apparatus for performing high quality fast predictive motion search |
| 02/12/2004 | US20040027252 Coupling signals to flowlines |
| 02/12/2004 | US20040027180 Semiconductor devices and reader for the semiconductor devices |
| 02/12/2004 | US20040026177 Elevator |
| 02/12/2004 | CA2526978A1 A method for grouping 802.11 stations into authorized service sets to differentiate network access and services |
| 02/11/2004 | EP1388988A2 Chip-scale coils and isolators based thereon |
| 02/11/2004 | EP1388810A2 Radio frequency identification device and reader therefor |
| 02/11/2004 | EP1388216A1 Communication device with a coil configuration for the communication with stationary data carriers |
| 02/11/2004 | EP1388070A2 Electromagnetically coupled interconnect system architecture |
| 02/11/2004 | EP1138128B1 Contactless electronic communication device with optional auxiliary power source |
| 02/11/2004 | EP0991992B1 Circuit for passive data carrier reducing the power consumption |
| 02/11/2004 | CN1475052A Communication system using leakage transmission line |
| 02/11/2004 | CN1474996A Contactless data carrier |
| 02/11/2004 | CN1474355A Semiconductor device and its information reader |
| 02/11/2004 | CN1473753A Elevator |
| 02/11/2004 | CN1138395C Full duplex cordless earphone for mobile phone |
| 02/10/2004 | US6690263 Method of managing collisions in a non-contact data interchange system |
| 02/05/2004 | WO2004012265A1 Method and apparatus for electronically aligning capacitively coupled chip pads |
| 02/04/2004 | EP1387313A2 RFID-tag with tuning means and anticollision method |
| 02/04/2004 | EP1386415A1 Parametric virtual speaker and surround-sound system |
| 02/04/2004 | EP1190380B1 Identification tag |
| 02/04/2004 | EP0972358B1 Installation for electronic data display |
| 02/04/2004 | CN1472609A Factory running system and method and information supply thereof |
| 02/03/2004 | US6685096 Transponder intended for several different applications |
| 02/03/2004 | CA2184276C Electronic identification system |
| 01/29/2004 | WO2004010629A2 Method and system for handovers using service description data |
| 01/29/2004 | US20040018654 Method and apparatus for electronically aligning capacitively coupled chip pads |
| 01/29/2004 | US20040017313 Motion tracking system and method |
| 01/29/2004 | DE10231340B3 Transponderschaltung Transponder circuit |