| 摘要 |
PURPOSE:To achieve recording without any labor, by storing a present picture once through one switching operation and reading out and recording it on a recording paper. CONSTITUTION:A pulse (a) is generated by turning on a manual switch 9, and an FF10 is reset with a pulse produced immediately after the pulse (a) among a sweep start pulse b produced at each one screen sweep start of a CRT4. An FF11 changes to a high level at leading of a pulse C of the FF10 and is reset to a low level with the sweep start pulse b just after the change. During the high level period of a pulse d corresponding to a sweep time of one screen, a gate 12 is opened, a video signal for one screen's share corresponding to one sweep period from a storage circuit 3 passes through and is stored in a shift register 13. This video signal is read out at a decoder 14 and recorded on a recording paper 16 via multi-pens 15-15. |
