| 摘要 |
PURPOSE:To attain simultaneous monitor of plural channels with one picture monitor by displaying plural reduced video images while arranging them on one set of video monitor. CONSTITUTION:A control signal is produced to control circuits h, i, j, in response to respective states S1-S4 of a control section 6. A contact A is closed by the control signal of the control circuit (i) in the state S1, the 1st camera signal is fed to a video signal line (k), a signal on signal lines k, l is synthesized on a video mixer 2 and reduced and then stored to a prescribed position of a video signal storage device 4. When the state of the controller changes sequentially as S2-S4, the 2nd-4th camera signals are applied and stored in a prescribed location of the storage device 4. The information stored in the storage device 4 is read sequentially and displayed on a video monitor 7.
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