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