| 摘要 |
<p>PURPOSE:To enable high-accuracy reading by transferring a document and an electric picture converter respectively, correcting time distortion of an electric picture conversion signal according to the relative speed and recognizing the picture. CONSTITUTION:A photoelectric converter 3 scans in the direct angle direction with respect to strings of pictures such as characters which are imprinted in documents. The photoelectric converter 3 is transferred relatively to the document and the output of the converter is given to a delay circuit 5 for correcting time through a circuit 4 for deciding whether the output is white or black. The delay circuit 5 is varied in delay amount by a CPU11 to which an output of a pulse generator 10 according to a relative transfer speed of the photoelectric converter 3 as well as a document. The picture signal whose time axis distortion is corrected by this delay circuit 5 is inputted to a pattern matching circuit 6 for recognizing characteristics.</p> |
