| 摘要 |
PURPOSE:To detect the position and the form of a label to accurately detect an address by detecting the difference between an envelope part of high reflectivity and the label part of low reflectivity. CONSTITUTION:A photoelectric conversion part 50 detects reflected light 35 from a letter 10, which is irradiated with light 31 from a light source 30, through a mirror 40 by a photoelectric detecting part 50 based on a control signal ll0 from a control part 70. A photoelectric conversion signal l20 is binarized by a binarizing circuit 60, and a binarized signal l30 is outputted to a label detecting part 80. The detecting part 80 counts clocks l40 and l50 from the control part 70 to detect width information l60 of the label in accordance with the high reflectivity of the envelope part and the low reflectivity of the label part and outputs this information to an address detecting part 90. Meanwhile, a character scanner 110 detects diffused reflected light 37 of the letter 10 through a mirror 100, and its video signal l70 is inputted to a detecting part 90, and this detecting part 90 detects an address candidate B1 as the address by the position of a label part 11.
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