Registers – Coded record sensors – Particular sensor structure
Patent
1994-12-06
1996-12-03
Shepperd, John
Registers
Coded record sensors
Particular sensor structure
235462, G06K 710
Patent
active
055810713
ABSTRACT:
A barcode scanner, which is particularly suitable for reading barcode information from surfaces having various reflective properties, includes a light intensity control for the light source of the barcode scanner. The light intensity control preferably comprises a means for ramping voltage and a summing circuit which allows the current flowing through the light source to be controlled. In addition, the light intensity control utilizes a clocking means which controls the rate of voltage ramping.
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Chen Chin-Long
Hsiao Mu-Yue
O'Trakoun Surasak K.
Pells Charles F.
Shen William W.
Cutter Lawrence D.
International Business Machines - Corporation
Shepperd John
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