| 摘要 |
<p>PURPOSE:To enable an image of a required magnification to be effected by a method wherein an analog image signal is converted to a digital image signal, and is stored and held for a while, and the stored digital image signal is joined by the held same digital image signal to be stored. CONSTITUTION:When a trigger signal DIN for read is supplied to an image sensor 21, an analog image signal V1 is obtained. This signal V1 is converted to a digital image signal V2 with an A/D converter 22. When recording of 1 to 1 is performed, a selector 23 is switched to a contact (a) side and after ending shift operation of 1 to 1 with a register 24, is switched from the contact (a) to a contact (b). Consequently the register 24 performs shift operation again, and supplies its output to a memory circuit 25. Therefore, one pixel content analog image signal V1 is digitalized, is multiplied also two times, and that digital image signal is stored in the memory circuit 25. Therefore, by dividing a thermal head by reading that, magnified recording can be performed.</p> |
