| 摘要 |
PURPOSE:To reproduce thin lines surely, transmits and record it, by digitizing a scanning bit data and comparing digital data before and after adjacent sanning bits. CONSTITUTION:A scanning bit data of analog form from a reading sensor 1 is converted 3 into digital form, binary coded black and white data comparing and discriminating absolute black and white based on the prescribed reference data as to each scanning bit data of the digital form, and adjacent scanning bit data of digital form are sequentially stored 4A, 4B. Logical sum 10 is taken between balck and white binary coded data as to each scanning bit data of the said digital form performing sequential and relative black white comparison and discrimination 6 based on the preceding data, the result is taken as binary- coded output data, for thin line reading. |
