Method of operating a double-sided scanner
作者： Kuo-Jeng Wang
DOI:
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摘要: An operating method for a double-sided scanner is provided. A light source of one particular color inside first group sources and different (or the same color) second are lit to scan front back surface document. Optical signals from document received converted into analogue electrical signals. Thereafter, digital signal. Finally, output host computer. This invention utilizes two groups (for example, light-emitting diodes) serve as scanner. Because diodes require no warm-up period quick switch, scanning simplified.
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