Labelling system

Details Labelling system Labelling system

G - Physics

09

F

G09F 9/30 (2006.01) G06K 17/00 (2006.01) G07G 1/14 (2006.01) G08C 17/00 (2006.01) G09F 9/00 (2006.01)

Patent

CA 2042724

P/8323/MDS - 17 - ABSTRACT Labellinq System A label unit 1 for displaying an item's price is linked to a control unit 7 by a radio wave link. The label unit 1 communicates verification data to the control unit 7 by reflecting and modulating a radio wave transmitted by the control unit 7, so avoiding the requirement for bulky batteries to provide transmission power.

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