Optical character reader

TL;DR: In this article, the authors propose to reduce the quantity of read designation information given before the character readout to simplify the character reading, by obtaining a position of the next character line in the calculation based on a preliminarily given character interval and storing the pattern of the last line in a pattern memory on a basis of this calculation result.

Abstract: PURPOSE:To reduce the quantity of read designation information given before the character readout to simplify the character reading, by obtaining a position of the next character line in the calculation based on a preliminarily given character interval and storing the pattern of the next character line in a pattern memory on a basis of this calculation result. CONSTITUTION:A business form or the like is scanned by a photoelectric converting part 1, and read information is converted photoelectrically, and a character pattern of one-line components of characters of the video signal from the converting part 1 is stored in a pattern memory part 2. The state of black at the tip of this character pattern is detected by a black detecting part 3, and the detection signal is applied to a control part 7. One character unit of the character pattern stored in the memory part 3 is cut by a detecting and cutting part 4, and the cut character pattern is recognized by a recognizing part 6. The position of a character line is calculated on a basis of the recognition result of the recognizing part 6 by the control part 7, and the position of the next character line is calculated on a basis of this character line position and a preliminarily given character line interval. A pattern of the next character line is stored in the memory part 2 on a basis of the calculation result, thus reducing the quantity of read designation information.