| Patents for H04B 5 - Near-field transmission systems, e.g. inductive loop type (17,859) |
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| 06/16/2004 | CN1504914A Computer console controlling remote end computers in a wireless way |
| 06/16/2004 | CN1154314C Wireless powered communication device using power signal sampling and method |
| 06/16/2004 | CN1154245C 接收电路 Receiving circuit |
| 06/15/2004 | US6750560 Electromagnetically coupled device |
| 06/10/2004 | WO2004049674A2 Contextual information management methods in wireless communications devices |
| 06/10/2004 | US20040110533 IC card, information processing terminal, and three-way data communication system and method |
| 06/10/2004 | US20040110519 Source synchronous CDMA bus interface |
| 06/09/2004 | DE10351773A1 Verteilungssystem Distribution system |
| 06/09/2004 | CN2620324Y Device for receiving electronic book by radio broadcasting mode |
| 06/09/2004 | CN1503197A Answer device of accesser and emitter packaged in casing |
| 06/08/2004 | US6747546 Data communication transponder and communications system employing it |
| 06/02/2004 | CN1501590A 接收电路 Receiving circuit |
| 06/02/2004 | CN1501566A Electromagnetic coupling characteristic adjustment method, power supply device, and non-contact power supply system |
| 06/01/2004 | US6744369 Gate entry system using short range radio communications with user terminal devices |
| 06/01/2004 | US6744367 Identification tag |
| 05/27/2004 | WO2004045226A2 Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristics |
| 05/27/2004 | WO2003079524A3 Rectifier utilizing a grounded antenna |
| 05/27/2004 | US20040102219 Communications system |
| 05/27/2004 | US20040100358 Detector |
| 05/27/2004 | US20040099744 Reader and transponder in enclosures |
| 05/27/2004 | US20040099738 Memory tag and a reader |
| 05/26/2004 | EP1422957A1 Radio communication system |
| 05/26/2004 | CN2618373Y Wireless radio frequency remote controller of household electrical appliances |
| 05/26/2004 | CN2618372Y Non contact deep-sea signal bidirectional transmission |
| 05/26/2004 | CN1500332A Circuit arrangement for demodulating voltage that is (ask)-inodulated by change of amplitude between low and high level |
| 05/26/2004 | CN1499737A Transceiver able to generate series resonance with parasitic capacitance |
| 05/26/2004 | CN1499432A 非接触通信介质 Noncontact communication medium |
| 05/26/2004 | CN1151618C System and method for implementing monitor function by blue tooth technique |
| 05/26/2004 | CN1151613C Selection method for transmitter of wireless data transmission |
| 05/25/2004 | US6741161 System and method for providing useful information for a moving object |
| 05/21/2004 | WO2004010629A3 Method and system for handovers using service description data |
| 05/20/2004 | US20040096111 Block size assignment using local contrast ratio |
| 05/20/2004 | US20040095291 Electromagnetic coupling characteristic adjustment method in non-contact power supply system, power supply device, and non-contact power supply system |
| 05/19/2004 | EP1420524A1 Apparatus for wireless transmission of information and communication system comprising said apparatus |
| 05/19/2004 | EP1420357A1 Electromagnetic coupling characteristic adjustment method in non-contact power supply system, power supply device, and non-contact power supply system |
| 05/19/2004 | EP1149305B1 Radio frequency identification device |
| 05/19/2004 | DE4426908B4 Schaltungsanordnung mit kapazitiven Koppelelementen zur galvanischen Trennung zweier Signal-Stromkreise Circuit with capacitive coupling elements for electrical isolation of two signal circuits |
| 05/19/2004 | CN2617084Y Dual-mode communication chip |
| 05/19/2004 | CN2617083Y Blue tooth development platform |
| 05/19/2004 | CN1150488C Data exchange system by contactless communication between terminal and remote powered IC card |
| 05/13/2004 | US20040092296 Transceiver capable of causing series resonance with parasitic capacitance |
| 05/13/2004 | US20040092231 Communication system and method, information processing terminal and method, and information processing apparatus and method |
| 05/13/2004 | US20040092229 System and method for secure wireless connection |
| 05/12/2004 | EP1417790A1 Exciter system and method for communications within an enclosed space |
| 05/12/2004 | EP1417789A2 Reproduction device and method |
| 05/12/2004 | EP1417777A1 Portable receiver with two antennae |
| 05/12/2004 | EP1417640A1 Data carrier having an active signal processing circuit and a passive signal processing circuit |
| 05/12/2004 | EP1417638A1 Transponder in power down mode during load modulation |
| 05/12/2004 | CN2615970Y Bluetooth adaptor with flash storage disc |
| 05/12/2004 | CN2615969Y Blue tooth USB interface adapter |
| 05/12/2004 | CN1496616A Reproduction device and method |
| 05/12/2004 | CN1495667A Data processing device and method, and data transmitter/receiver and method |
| 05/12/2004 | CN1495438A Low nose signal generator for radio-frequency recognition system |
| 05/12/2004 | CN1149522C Demagnetizer using biplane demagnetizing effect |
| 05/12/2004 | CN1149160C Radio paging safeguard alarm system against approaching train |
| 05/11/2004 | US6734797 Identification tag utilizing charge pumps for voltage supply generation and data recovery |
| 05/06/2004 | EP1416581A1 Non-contact communication medium |
| 05/06/2004 | EP1415458A1 Mobile phone and hands-free kit with inductive link |
| 05/06/2004 | EP1415264A1 Non-contact smart card interrogator, wherein across a transmission line from an antenna to a receiver the signal modulation varies between amplitude modulation and phase modulation |
| 05/06/2004 | EP1212925A4 Method and apparatus for magnetic induction heating using radio frequency identification of object to be heated |
| 05/05/2004 | CN1494304A Communication device connected on first and second communication network path |
| 05/05/2004 | CN1148683C Entrance guard method and system for wireless authentication and data transmitting/receiving |
| 05/04/2004 | US6731199 Non-contact communication system |
| 04/29/2004 | WO2004036784A1 Asymmetric information transmission system using an electric near field |
| 04/29/2004 | US20040079524 Toroidal choke inductor for wireless communication and control |
| 04/28/2004 | EP1413495A1 Trackside antenna arrangement for a train control system |
| 04/28/2004 | CN2613934Y Bluetooth technology based hand held terminal apparatus |
| 04/28/2004 | CN2613933Y Bluetooth technology based wireless network insertion point |
| 04/28/2004 | CN2613932Y Intelligent fixing location broadcasting system |
| 04/27/2004 | US6727802 Anti-tear protection for smart card transactions |
| 04/22/2004 | WO2004034738A1 Teleloop system |
| 04/22/2004 | WO2004034662A1 Circuit arrangement for electrically isolated signal transmission |
| 04/22/2004 | WO2004034440A2 Current integrating sense amplifier for memory modules in rfid |
| 04/22/2004 | US20040077367 Wireless information retrieval and content dissemination system and method |
| 04/22/2004 | US20040075616 Antenna for rfid |
| 04/22/2004 | US20040074975 Contactless data storage medium |
| 04/21/2004 | EP1411463A2 Surface acoustic wave converter and identification system using the same |
| 04/21/2004 | EP1410679A2 Supplemental audio content system with wireless communication for a cinema and related methods |
| 04/21/2004 | EP1410353A2 Wireless identification system and protocol |
| 04/21/2004 | EP1220222A4 Mobile karaoke system, method for ensuring electromagnetic compatibility of said karaoke system, mobile wireless transmitter for said system, method for preventing the use of unauthorized cartridges and restraining unauthorized access to said system |
| 04/21/2004 | CN1490939A Wireless communication system of mining shaft |
| 04/21/2004 | CN1490938A Wireless IC label reader, wireless IC label reading device and system |
| 04/15/2004 | WO2004032364A1 Device for transmitting digital signals between mobile units with an adaptation of the spectral characteristics |
| 04/15/2004 | US20040071294 Method and apparatus for automatically configuring surround sound speaker systems |
| 04/14/2004 | EP1407561A2 Device for the inductive transmission of electrical power |
| 04/14/2004 | CN1489806A Antenna for RFID |
| 04/14/2004 | CN1489747A Ic card, information processing terminal and data communication system and method among three parts |
| 04/14/2004 | CN1489731A Communication system and method, information processing terminal and method, and information processing apparatus and method |
| 04/14/2004 | CN1489360A Cell-charging apparatus for connecting hand-set and wire telephone network |
| 04/14/2004 | CN1489301A Wireless network accessing system and method |
| 04/14/2004 | CN1489300A Programmed safer door-opening device for garage |
| 04/14/2004 | CN1146250C Radio-frequency identification tag having parallet resonant circuit coupling with environment |
| 04/14/2004 | CN1145904C Data carrier for contactless reception of data and energy and method for operating the said data carrier |
| 04/13/2004 | US6720866 Radio frequency identification tag device with sensor input |
| 04/13/2004 | US6720865 Resilient member with wireless communication device |
| 04/08/2004 | WO2004030256A2 Device for the transmission of digital signals between moving units |
| 04/08/2004 | WO2004029870A1 Electronic device with communication capability |
| 04/08/2004 | WO2004029869A1 Antenna device and communication device using antenna device |
| 04/08/2004 | US20040066227 Circuit configuration for demodulating a voltage which is ASK modulated by altering the amplitude between a low level and a high level |
| 04/08/2004 | US20040065733 RFID tag and method for processing RFID data |