发明名称 |
Automatic adjustment of illumination for reading barcodes and similar items |
摘要 |
A barcode or similar scanning device is adjusted and calibrated by utilizing test pulses and measuring the peaks and calculating average of reflected light. The duty cycle of the pulses is adjusted based upon the measurements taken, in order to insure that the amount of reflected light is within the appropriate range associated with the charge coupling device or similar device collecting the reflective light.
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申请公布号 |
US7025270(B2) |
申请公布日期 |
2006.04.11 |
申请号 |
US20040920700 |
申请日期 |
2004.08.18 |
申请人 |
OPTOELECTRONICS CO., LTD. |
发明人 |
TANGEZAKA YOSHINORI;KOIKAWA TOMOKI |
分类号 |
G06K7/10 |
主分类号 |
G06K7/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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