Roller activation apparatus

Details Roller activation apparatus Roller activation apparatus

G - Physics

06

K

G06K 7/00 (2006.01) G07F 7/08 (2006.01)

Patent

CA 2555527

A roller activation apparatus includes a switch, a roller, a light generator and a light receiver. The roller contacts the switch. A wheel of the roller has at least an opening. A wheel surface of the roller is touched to activate the switch by inputting a card. The roller rotates based on a movement of the card. The light generator is disposed at a side of the roller and is for generating a light beam. The light receiver is disposed at another side of the roller and is for receiving the light beam through the opening of the wheel so as to generate a pulse signal. The pulse signal corresponds to the movement of the card.

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