Patent ID: 7621452
Filing Date: 2009-11-24
Classification: G06K

Abstract:
1. An electronic apparatus comprising: an accommodating section to which a wireless tag sub unit is detachably attached, the sub unit including a wireless tag therein; a reader-and-writer unit that communicates with the wireless tag to read data from the wireless tag and write data into the wireless tag when said reader-and-writer unit remains locked to said accommodating section; and a mechanism that causes said reader-and-writer unit and said accommodating section to lock to each other and to unlock from each other; an anticipation signal generator that includes a detection section that detects when the mechanism will unlock the reader-and-writer unit and the wireless tag from each other and that generates an anticipation signal, the anticipation signal being indicative that communication between the wireless tag and said reader-and-writer unit is anticipated to fail, wherein the anticipation signal is provided to said reader-and-writer unit after said mechanism has begun to unlock said reader-and-writer unit and said accommodating section from each other, and before said mechanism has completely unlocked said reader-and-writer unit and said accommodating section from each other; wherein the reader-and-writer unit stops communicating with the wireless tag in response to the anticipation signal.