Patent ID: 8111142
Filing Date: 2012-02-07
Classification: G06K

Abstract:
1. A non-contact ID tag writing apparatus for writing predetermined data in a plurality of non-contact ID tags transported on a common carrier moved in a predetermined transportation direction, the non-contact ID tag writing apparatus comprising: a plurality of writing units, arranged along with the common carrier in the transportation direction at regular intervals, each including an antenna coverage area of which simultaneously includes at least two of the plurality of non-contact ID tags on the common carrier, each adapted to emit from the antenna an RF signal to write predetermined data into said at least two of the plurality of non-contact ID tags existing within the coverage areas of the antennas; and a selection unit adapted to control the location of the plurality of non-contact ID tags within the coverage area so that, at an arbitrary time point, only one non-contact ID tag of said at least two of the plurality of non-contact ID tags existing within a coverage area of respective antennas of the plurality of writing units can communicate with a corresponding antenna, and so that non-contact ID tags other than said one non-contact ID tag among said at least two of the plurality of non-contact ID tags existing within the coverage area of the corresponding antenna cannot communicate with the corresponding antenna, by moving electric conductors in a corresponding vicinity of each of said other non-contact ID tags at a same speed and direction of the common carrier to prevent reception of electromagnetic waves from the corresponding antenna, wherein the selection unit ensures that the predetermined data is written in each of the plurality of non-contact ID tags by only one of the plurality of writing units during transport.