| 摘要 |
PURPOSE:To reproduce the half tone without moire stripes, by synchronizing clocks of the pulse modulator and the memory circuit with each other by performing pulse modulation by the signal obtained by subjecting the receiving signal to A/D conversion in the single stylus type facsimile receiver. CONSTITUTION:The received and detected signal which is changes the amplitude gradually from the white level to the black level i applied to input terminal 1, and the output converted to a binary code is obtained in A/D converter 2 and is applied to pulse number modulator 3. The output of pulse number modulator 3 is written in memory circuit 6 at every one scanning line; and when the recorder scans the surface of the recording paper, it is read and recorded for every one scanning line. |
