Apparatus and system for stock control

Details Apparatus and system for stock control Apparatus and system for stock control

2005-06-22

2010-06-15

La, Anh V (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572100, C340S568100, C340S545600, C705S022000

Reexamination Certificate

active

07737855

ABSTRACT:
An apparatus (500) for detecting removal of items from a compartment is disclosed. The apparatus comprises a reader (540) for reading Radio Frequency Identification (RFID) tags attached to items in the compartment and a processor (510), coupled to the reader (540), for identifying items removed from the compartment. Removal of an item from the compartment is detected based on absence of a RFID tag that was previously detected by the reader (540). The RFID tags may be read exclusively when a door of the compartment is closed and the apparatus may further comprise a detector coupled to the processor (510) for detecting open/close status of the door. Removal of an item is preferably confirmed only when a RFID tag attached to an item has been absent from the compartment for longer than a defined time period.

REFERENCES:
patent: 5798694 (1998-08-01), Reber et al.
patent: 6677857 (2004-01-01), Bara et al.
patent: 6982640 (2006-01-01), Lindsay et al.
patent: 7061379 (2006-06-01), Chen et al.
patent: 7406439 (2008-07-01), Bodin et al.
patent: WO03073201 (2003-09-01), None

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