Patent ID: 7372360
Filing Date: 2008-05-13
Classification: G06Q,G07G

Abstract:
1. An item information for items stored in groups on display shelves, the system comprising: a plurality of radio frequency transponders each having item information stored therein that is related to items stored on the display shelves proximate to the transponder; and a portable item information device having: a radio frequency transceiver circuit adapted to generate an interrogation signal that has sufficient power so that the interrogation signal can be received by any of the plurality of radio frequency transponders within a proximate distance and further supplying sufficient power to said transponders so that the transponders can use the supplied power to generate responsive signals having data indicative of the item information stored therein; said radio frequency transceiver circuit further being adapted to sense the responsive signals and to provide item data to a control circuit based upon the data in the responsive signals; said control circuit being adapted to receive the item data, to determine output information based upon the received item data and to cause a display to generate an image based upon the output information.