Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 5 - Near-field transmission systems, e.g. inductive loop type
Patents for H04B 5 - Near-field transmission systems, e.g. inductive loop type (17,859)
10/2003
10/29/2003EP1357511A2 IC tag system
10/29/2003CN2583886Y Wireless sound signal transmitter-receiver
10/29/2003CN1126296C Synchronous paging signal transmission system, and transmission method
10/29/2003CN1126188C Pocket portable radio terminal unit
10/28/2003US6640090 Signal transmitter utilizing ask modulation wave
10/28/2003US6639514 Method for selecting and writing into RFID-transponders
10/23/2003WO2003088407A1 Waveguide communication system
10/23/2003WO2003086807A1 Device for supplying energy and for guiding a mobile object inductively
10/23/2003US20030197613 Power source system for RF location/identification tags
10/23/2003CA2481445A1 Device for supplying energy and for guiding a mobile object inductively
10/22/2003CN2582279Y Blue teeth wireless intelligent indentification sign
10/22/2003CN1450726A Short distance wireless tranmission method and system for audio and video signal in audio and video system
10/22/2003CN1125416C Method of providing message to user of selecttive call receiver
10/22/2003CA2400693A1 Power source system for rf location/identification tags
10/21/2003US6636728 Portable multi-antenna signal receiver
10/21/2003US6636181 Transmitter, computer system, and opening/closing structure
10/21/2003US6636146 Contactless communication system for exchanging data
10/16/2003WO2003085617A1 Method and apparatus for sensing and transmitting a body characteristic of a host
10/16/2003WO2003085472A1 A method and a device for protection of personnel
10/16/2003WO2002052758A3 Portable audio reproduction device and operation method therefor
10/15/2003CN2580717Y Wireless transmission type surrounding combined acoustic equipment
10/15/2003CN2580694Y Wireless connection device for acoustic equipment
10/15/2003CN2580693Y Blue-teeth communication equipment using common battery
10/15/2003CN1449169A Bluetooth adapter having flash memory
10/15/2003CN1449124A Property trace protecting method
10/15/2003CN1448284A Tyre with a receiving antenna
10/14/2003US6633236 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters
10/14/2003US6633164 Measuring focused through-casing resistivity using induction chokes and also using well casing as the formation contact electrodes
10/09/2003US20030189483 Contactless IC card
10/08/2003EP1351410A1 Track guided data transmission system
10/08/2003EP1350640A1 Tyre with a receiving antenna
10/08/2003EP1350340A1 Coupling signals to flowlines
10/08/2003EP1350233A1 Process for the manufacture of novel, inexpensive radio frequency identification devices
10/08/2003CN1447950A Antenna Generating electromagnetic field for transponder
10/02/2003US20030186717 Slave communication device for use in wireless lan system and control method and control program of slave communication device
10/02/2003US20030184163 Rectifier utilizing a grounded antenna
10/01/2003EP1348260A2 Method and apparatus for transmitting a signal through a power magnetic structure
10/01/2003CN1123089C Multiple loop antenna and electronic article monitoring system using it
10/01/2003CN1122939C Improved method for collsion management in non-contact data exchange system
09/2003
09/30/2003US6626363 Antenna device and card-shaped storage medium
09/25/2003WO2003079672A1 Motion tracking system and method
09/25/2003WO2003079578A1 Proximity triggered job scheduling system and method
09/25/2003WO2003079524A2 Rectifier utilizing a grounded antenna
09/25/2003WO2003079305A1 Integrated circuit with enhanced coupling
09/25/2003WO2003079281A1 Portable device comprising a communication station configuration and a data carrier configuration
09/25/2003WO2002029855A3 Power supply and interconnect system
09/25/2003CA2478764A1 Proximity triggered job scheduling system and method
09/25/2003CA2477553A1 Motion tracking system and method
09/24/2003EP1347533A1 Antenna for rfid
09/24/2003EP0983569B1 Enhanced identification system
09/24/2003CN1444800A Energy self-sufficient high frequency transmitter
09/24/2003CN1444347A Operation instruction input device capable of being integrted in portable mobile communication equipment
09/23/2003US6624362 Electronically detectable resonance label, in particular RFID label
09/23/2003US6622922 Micro-electronic component, incorporating asynchronous digital processing means and a contact-free electromagnetic coupling interface
09/23/2003US6622921 Identification element
09/23/2003CA2300120C Vehicle-mounted device with sleep function for use in road-to-vehicle communication system
09/23/2003CA2073421C Article removal control system
09/18/2003WO2003077361A1 Microstrip antenna for an identification appliance
09/18/2003WO2003077186A1 Communication station for communication with transponders and further communication stations with the aid of different transmission parameters
09/18/2003WO2003040950A3 Dual antenna coil transponder system
09/18/2003US20030177159 Dynamic machine synthesis for wireless device access and management
09/18/2003US20030174099 Intelligent station using multiple RF antennae and inventory control system and method incorporating same
09/17/2003CN2574319Y Improved sound radio transmitting and receiving device for TV set
09/17/2003CN2574318Y Wireless digital set-top box
09/17/2003CN2574073Y Projector capable of receiving radio signals
09/17/2003CN2574008Y Wireles sonic wave meter
09/17/2003CN1443341A RFID tag installing structure, RFID tag installing method and RFID tag communication method
09/16/2003US6621268 Operation diagnosing device, article identification device for use therewith, and operation diagnosing system
09/16/2003US6621183 Supply of power to primary conductors
09/12/2003WO2003021548A3 Transmission of measuring data
09/12/2003WO2003003788A3 Supplemental audio content system with wireless communication for a cinema and related methods
09/11/2003US20030169207 Microstrip antenna for an identification appliance
09/10/2003EP1342203A2 System and method for using radio frequency identification in retail operations
09/09/2003US6617846 Method and system for isolated coupling
09/04/2003US20030164751 System for the transmission of data from a data carrier to a station by means of one or at least one other auxiliary carrier signal
09/04/2003US20030164742 Detection of an electric signature of an electromagnetic transponder
09/04/2003US20030164240 Controllable gas-lift well and valve
09/03/2003CN1439863A Variable-accuracy electronic laser two-dimensional dip measuring method and device
09/02/2003US6615023 System for wireless, bi-directional transfer of electric signals
08/2003
08/28/2003US20030161200 Memory device and memory accommodating device
08/27/2003EP1337967A2 Data carrier designed for contactless communication and having detection means for detecting a temperature prevailing in the data carrier
08/26/2003US6611673 Radio frequency-controlled telecommunication device
08/26/2003US6611556 Identification system for monitoring the presence/absence of members of a defined set
08/21/2003WO2003069816A2 Near-field spatial multiplexing
08/21/2003WO2003069550A2 Electromagnetic transponder with a programmable code
08/21/2003WO2003069539A1 Label identification system and coding method suited therefor
08/21/2003WO2003069538A1 Switching device actuated with a transponder
08/21/2003US20030157889 Wireless mobile device
08/20/2003EP1337001A1 Device for contactless transmission of electrical signals and /or energy
08/20/2003EP1336158A1 Contactless data carrier
08/20/2003CN1437422A Radio earphone unit
08/20/2003CN1437382A Warning method for bluetooth equipment in abnormal association
08/20/2003CN1437381A Warning method for bluetooth equipment in abnormal association
08/20/2003CN1437380A Warning method for bluetooth equipment in abnormal association
08/20/2003CN1437329A Warning method for bluetooth equipment in abnormal association
08/20/2003CN1437328A Combination method of dynamic machine for radio apparatus access and management
08/19/2003US6608995 Detection circuit for proximity IC card device
08/19/2003US6608567 Short range wireless communication using on-board apparatus
08/19/2003US6607354 Inductive rotary joint message system
08/14/2003WO2003067508A1 Enhancement antenna for article identification
1 ... 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 ... 179