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Browse by Category: Main > Communications
Class Information
Number: 340/572.4
Name: Communications: electrical > Condition responsive indicating system > Specific condition > Article placement or removal (e.g., anti-theft) > Detectable device on protected article (e.g., "tag") > Specified processing arrangement for detected signal
Description: Subject matter where the manner of handling the detected signal, which results in a determination of placement or removal, is specified.










Patents under this class:
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Patent Number Title Of Patent Date Issued
7439862 Antenna array for an RFID reader compatible with transponders operating at different carrier frequencies Oct. 21, 2008
7436308 Adjusting RFID waveform shape in view of signal from another reader Oct. 14, 2008
7436307 Method and system for setting parameters of a field station in a communications network Oct. 14, 2008
7436306 Method and system for checking completeness in a package Oct. 14, 2008
7436303 Rack sensor controller for asset tracking Oct. 14, 2008
7436286 Circuit arrangement and method for increasing the functional range of a transponder Oct. 14, 2008
7432814 Reconstructing RFID waveform shape for reuse in individual channel Oct. 7, 2008
7432810 Radio frequency tags for use in a motion tracking system Oct. 7, 2008
7432805 Notifying users of device events in a networked environment Oct. 7, 2008
7429926 Radio frequency identification (RFID) and programmable logic device (PLD) integration and applications Sep. 30, 2008
7429912 Method for multi-reading a plurality of IDs Sep. 30, 2008
7427918 Cargo security sensing system Sep. 23, 2008
7425899 Electromagnetic tags Sep. 16, 2008
7425887 Multi-layered efficient RFID coupler Sep. 16, 2008
7423539 RFID tags combining signals received from multiple RF ports Sep. 9, 2008
7423535 Object monitoring, locating, and tracking method employing RFID devices Sep. 9, 2008
7423534 Electronic method and system for monitoring containers and products Sep. 9, 2008
7423517 Transponder with a controllable power-on-reset circuit Sep. 9, 2008
7420470 Methods, systems, and products for tracking objects Sep. 2, 2008
7420469 RFID tag circuits using ring FET Sep. 2, 2008
7420468 Surgical implement detector Sep. 2, 2008
7420467 RFID asset management method and system for vehicles Sep. 2, 2008
7420466 Rich object model for diverse Auto-ID tags Sep. 2, 2008
7417548 Adjusting RFID waveform shape in view of signal from an RFID tag Aug. 26, 2008
7417546 Method and RFID system for providing a service Aug. 26, 2008
7414988 Server for updating location beacon database Aug. 19, 2008
7411506 Interrogator and interrogation system employing the same Aug. 12, 2008
7411505 Switch status and RFID tag Aug. 12, 2008
7411503 System and method for disabling data on radio frequency identification tags Aug. 12, 2008
7411501 Method to verify or track a physical address while providing a service Aug. 12, 2008
7411500 Methods of monitoring items or material from manufacturing processes Aug. 12, 2008
7408480 Dual mode electronic toll collection transponder Aug. 5, 2008
7408466 Adjusting RFID waveform shape in view of detected RF energy Aug. 5, 2008
7408465 Method of using RFID systems to help blind and visually-impaired individuals Aug. 5, 2008
7408463 Radio frequency identification tag Aug. 5, 2008
7406320 Method and system for location estimation in wireless networks Jul. 29, 2008
7405663 System for detecting radio-frequency identification tags Jul. 29, 2008
7405662 Wireless tag ranging Jul. 29, 2008
7405661 Real-time system for monitoring theft protection Jul. 29, 2008
7405660 Error recovery in RFID reader systems Jul. 29, 2008
7405659 RFID tag switched capacitor slicer threshold Jul. 29, 2008
7405658 System and method for monitoring assets, objects, people and animals utilizing impulse radio Jul. 29, 2008
7405657 RFID tag for protecting information and method for protecting personal information Jul. 29, 2008
7403762 Method and system for building a location beacon database Jul. 22, 2008
7403744 Self-associating wireless personal area network Jul. 22, 2008
7403122 RFID tag circuits operable at different speeds Jul. 22, 2008
7400253 Harvesting ambient radio frequency electromagnetic energy for powering wireless electronic devices, sensors and sensor networks and applications thereof Jul. 15, 2008
7400248 Sensor devices with RFID communications Jul. 15, 2008
7397377 Characterizing a cargo container Jul. 8, 2008
7397376 Object tracking method and system using tags Jul. 8, 2008

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