Registers – Coded record sensors – Particular sensor structure
Patent
1997-02-13
1999-11-23
Hajec, Donald
Registers
Coded record sensors
Particular sensor structure
235494, G06K 710
Patent
active
059885017
ABSTRACT:
An identification device and method which includes adding an identification pattern to an identification object. The pattern is formed by the absence or presence of identification holes located at a plurality of points on the identification object. In addition, the holes are spaced from one another at a specified pitch. Next, the identification object is transferred along a transfer path parallel to the identification pattern. Then light or an ultrasonic wave is transmitted from one side of the transfer path in a transverse direction of the transfer path. Identification of the identification pattern of the identification object is determined on whether or not the light or the ultrasonic wave is received on the other side of the transfer path.
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Kano Kunihiko
Murakami Takaaki
Hajec Donald
Lee Diane I.
Yuyama Mfg. Co. Ltd.
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