Patents for H04B 5 - Near-field transmission systems, e.g. inductive loop type (17,859) |
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10/13/2004 | CN1536776A Blue-tooth intelligent module |
10/13/2004 | CN1536501A USB network camera with blue tooth transmission interface |
10/13/2004 | CN1171171C Method for communicating with a plurality of contactless data carriers and contactless data carrier for use therein |
10/12/2004 | US6804104 Data carrier comprising an integrated circuit with an integrated main capacitor and integrated additional capacitors |
10/07/2004 | WO2004045226A3 Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristics |
10/07/2004 | US20040199671 Communication assisting apparatus for mediating data transfer and communication system employing the communication assisting apparatus |
10/07/2004 | US20040198224 Method and system for transmitting data between personal communication devices |
10/07/2004 | US20040196113 Communication device having a two-mode controlled isolation circuit for power transport and bidirectional communication |
10/07/2004 | US20040195324 Non-contact IC card reader/writer device, non-contact IC card, input device, and method of calculating location of non-contact IC card |
10/06/2004 | EP1465336A1 Antenna system for radio frequency identification |
10/06/2004 | EP1275208B1 Arrangement for contactless transmission of electrical signals or energy |
10/06/2004 | CN2646961Y Blue tooth transmission stand |
10/06/2004 | CN2646960Y Structure supplied by blue tooth wireless communication device for holding blue tooth earphone |
10/06/2004 | CN2646734Y Single projection type 3D video playing device |
10/06/2004 | CN1534536A Linear scanning device capable of radio receiving and transmission and method |
10/06/2004 | CN1170372C Multi-functional USB bluetooth RF communication module |
10/06/2004 | CN1170120C Variable-accuracy electronic laser two-dimensional dip measuring method and device |
10/05/2004 | US6801122 Identification transponder |
10/05/2004 | US6800958 Wireless data and energy transmission device |
09/30/2004 | WO2004084422A2 Load variation tolerant radio frequency (rf) amplifier |
09/29/2004 | EP1462983A1 Enhanced identification system |
09/29/2004 | EP1462821A1 Radio frequency identification device |
09/29/2004 | EP1461768A1 Transponder |
09/29/2004 | EP1461762A1 Communication station for inventorizing transponders by means of selectable memory areas of the transponders |
09/29/2004 | CN1533047A Combinable or separable had-held communicationj device |
09/29/2004 | CN1532672A Medium storage transfer interface device |
09/29/2004 | CN1169292C Clock input circuit |
09/28/2004 | US6798309 Arrangement for transmitting electrical signals and/or energy between parts that can be rotated in relation to each other |
09/28/2004 | US6796247 Desk comprising an integrated reading device |
09/23/2004 | US20040185916 Load variation tolerant radio frequency (RF) amplifier |
09/23/2004 | US20040185910 Wireless communication system |
09/23/2004 | US20040185806 Communication between a transponder and an interrogator |
09/23/2004 | US20040183743 Enhanced antenna using flexible circuitry |
09/23/2004 | US20040183640 Device for the inductive transmission of electrical power |
09/23/2004 | US20040183619 Capacitive couplers and methods for communicating data over an electrical power delivery system |
09/23/2004 | US20040182162 Apparatus for the transmitting of electrical signals |
09/22/2004 | EP1460712A1 Enhanced coil antenna performance using flexible printed circuit |
09/22/2004 | EP1459459A1 System and method of wirelessly triggering portable devices |
09/22/2004 | CN1531836A Supplemental audio contents system with wireless communication for cinema and related methods |
09/22/2004 | CN1531715A System and method for using radio frequency identification in retail operations |
09/22/2004 | CN1531361A Method for using blue tooth mobile telephone to carry out voice log on with audio on board |
09/22/2004 | CN1531220A Data device for automatically switching between wiring/blue tooth modes |
09/22/2004 | CN1168354C Method and apparatus for magnetic induction heating using radio frequency identification of object to be heated |
09/22/2004 | CN1168344C LC filter circuit, laminated LC composite parts, multiplexer and radio communication apparatus |
09/16/2004 | WO2004078495A1 Device for transmitting signals by induction between a transponder circuit and an interrogation circuit |
09/16/2004 | US20040179466 Inductive loop detector with automatic frequency change |
09/16/2004 | US20040178274 Contactless radio frequency magnetic field data transmission card and its application system |
09/16/2004 | US20040178265 High sensitivity reader for passive transponders |
09/16/2004 | DE10308947A1 Data transmission system operating in accordance with Bluetooth standard, operates channels with periodic data exchange, interspersed with open time slots |
09/15/2004 | EP1458153A2 Service providing apparatus, service providing program and service providing method |
09/15/2004 | EP1457914A1 A transponder authentication system and method for authenticating a transponder |
09/15/2004 | EP1456815A1 Article with retroreflective and radio frequency-responsive features |
09/15/2004 | CN1529430A Wide-area wireless medical monitoring system |
09/15/2004 | CN1167210C Fast mode of establishing blue-teeth connection between blue-teeth equipments |
09/15/2004 | CN1167209C Universal blue tooth circumscribing module |
09/15/2004 | CN1167208C Identification method for establishing connection between equipments |
09/15/2004 | CN1167207C Method of establishing blue-teeth connection between blue-teeth equipments |
09/14/2004 | US6792246 Noncontact transmitting apparatus |
09/14/2004 | US6791457 Transponder, interrogator and system thereof |
09/14/2004 | US6791322 Method and apparatus for transmission and reception of an analog magnetic resonance signal |
09/11/2004 | CA2459804A1 Inductive loop detector with automatic frequency change |
09/10/2004 | WO2004077705A1 Communication system, communication method and communication apparatus |
09/10/2004 | WO2004077704A1 Communication system |
09/09/2004 | US20040174263 Gate entry system using short range radio communications with user terminal devices |
09/09/2004 | DE10257757A1 Museum display object location procedure uses transponders on objects exchanging signals with antennas in wire grid separated housings |
09/08/2004 | EP1454769A1 Apparatus for inductively transmitting signals between a transponder circuit and an interrogating circuit |
09/08/2004 | CN2640148Y Telephone control device for connecting with blue tooth communication device |
09/08/2004 | CN2640145Y Telephone with radio electronic door bell function |
09/08/2004 | CN1527569A Wired/wireless blue-tooth keyboard |
09/08/2004 | CN1527491A Radio broadcast unit |
09/07/2004 | US6788204 Surface-wave transducer device and identification system with such device |
09/02/2004 | US20040171373 Mobile communication terminal, server, communication system, communication control method, and communication control program |
09/02/2004 | US20040171355 Wireless transceiver for implantable medical devices |
09/02/2004 | DE10307630A1 Coupler for an electronic system, e.g. a high frequency measurement system, has additional resistive, inductive and or capacitive connections from an input transformer winding to earth in order to improve its transfer properties |
09/02/2004 | DE102004007980A1 Kommunikationsunterstützende Vorrichtung zum Vermitteln von Datenübertragung und die kommunikationsunterstützende Vorrichtung verwendendes Kommunikationssystem Supporting communication device for switching data transfer and communication supporting device-use communication system |
09/01/2004 | EP1452739A1 Pump-controller interface |
09/01/2004 | CN2638338Y Wireless earphone type palm information communication equipment |
09/01/2004 | CN1525772A A closedown call transfer method for Bluetooth handset |
09/01/2004 | CN1525721A An automatic call transfer method for Bluetooth earphone |
09/01/2004 | CN1525349A Communication auxiliary device and communication system adopting the device |
09/01/2004 | CN1525343A Mobile storage unit and method capable of visiting card scanning and format conversion |
09/01/2004 | CN1525342A Mobile storage unit and method capable of visiting card scanning and electronic visiting card transmission |
09/01/2004 | CN1525280A Apparatus for turning on or shutting down computer by multimedia remote controller |
09/01/2004 | CN1524489A Long range real-time monitoring system of a clinical monitoring equipment |
09/01/2004 | CN1165117C Method for realizing wire-wireless general-use blue tooth keyboard function |
08/31/2004 | US6785539 System and method of wirelessly triggering portable devices |
08/31/2004 | US6784813 Method, system, and apparatus for remote data calibration of a RFID tag population |
08/31/2004 | US6784785 Duplex transmission in an electromagnetic transponder system |
08/31/2004 | US6783153 Protective motorcycle suit |
08/31/2004 | CA2257190C System and method for providing useful information for a moving object |
08/26/2004 | WO2004073199A1 Multi-receiver communication system with distributed aperture antenna |
08/26/2004 | WO2004019055A8 An identification device and identification system |
08/25/2004 | EP1449165A1 Data carrier having power dependent data processing modes |
08/25/2004 | EP1449164A1 Data carrier for transmitting data with different transmission parameters |
08/25/2004 | EP1449163A1 Data carrier for transmitting data with different repetition frequencies |
08/25/2004 | EP1449113A2 Dual antenna coil transponder system |
08/25/2004 | EP0906604B1 Antena multiplexer with isolation of switching elements |
08/25/2004 | CN2636552Y Moving decorative article having induction mobile telephone incoming call signal |
08/25/2004 | CN2636502Y Blue srpout commmnication device capable of preventing interference |
08/25/2004 | CN1523777A Service providing apparatus, service providing program and service providing method |