| 摘要 |
PURPOSE:To avoid the erasion of pictures by storing previously the picture information in a picture memory and then projecting the picture information to a monitor screen in a random access mode, etc. CONSTITUTION:The detection signal of a pickup device 1 is delivered to an output terminal 5 via a preamplifier 2, an FM demodulator 3 and a video signal switching circuit 9. A picture memory 17 stores the picture information equivalent to several screens. A random access start command is given from a control device 12 with an input operation of a keyboard 13. Meanwhile the circuit 9 performs a switching operation, and the signal read out of the memory 17 is delivered to the terminal 5 in place of the signal obtained from a video signal processing circuit 4. |
