191950 ⎘
Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions
Radio tag issuing apparatus
#302Item finding using RF signalling
#303RFID printer and antennas
#304Methods and systems for verifying the position and status of hierarchically arranged objects
#305Apparatus and method for communicating with an RFID transponder
#306Location measurement process for radio-frequency badges
#307Mobile portal for radio frequency identification of objects
#308RF tag, RF tag attitude detection apparatus, and RF tag attitude detection system
#309Information processing apparatus for receiving predetermined information, and program product and method therefor
#310Method and apparatus for the automatic determination of network cable connections using RFID tags and an antenna grid
#311Battery powered wireless transceiver having LPRF component and second wake up receiver
#312RFID tag reader with tag location indicated by visible light beam
#313System and method for selectively reading RFID devices
#314Method and apparatus for improving the efficiency and accuracy of RFID systems
#315Active RFID tag utilizing a secondary communication mode
#316Process equipment tracking system
#317Method and apparatus for transponder initiated messaging
#318Wireless communication medium processing apparatus and wireless communication medium processing system
#319Object carriers and lighted tags for an object control and tracking system
#320Contactless data storage medium having a signal indicator
#321Physical object with memory tags and apparatus for writing and using such objects
#322Antenna system and method
#323Transponder startup control method and interrogator for tire pressure monitoring system
#324Electronically updateable label and display
#325Video records with superimposed information for objects in a monitored area
#326Optical asset tracking system
#327Radio and optical identification tags
#328RF ID tag reader utlizing a scanning antenna system and method
#329Tracking apparatus, system and method
#330RFID tag reading system and method
#331Radio frequency identification aiding the visually impaired with sound skins
#332Radio frequency identification aiding the visually impaired
#333Tracking, presence verification and locating features as part of a security system
#334Object locator feature as part of a security system
#335Systems and methods having LPRF device wake up using wireless tag
#336Manufacture of LPRF device wake up using wireless tag
#337Wireless communication system
#338Systems and methods for tracking the location of items within a controlled area
#339Spatially Selective UHF Near Field Microstrip Coupler Device and RFID Systems Using Device
#340Spatially selective UHF near field microstrip coupler device and RFID systems using device
#341RF identification system with restricted range
#342Article locating and tracking apparatus and method
#343Key control system using separated ID and location detection mechanisms
#344Article identification and tracking using electronic shadows created by RFID tags
#345Method and apparatus for automatically tracking and communicating data storage device information using RF tags: operating condition, configuration and location
#346Method of secure personal identification, information processing, and precise point of contact location and timing
#347Zero-power receiver