发明名称 VIDEO RECORDING CONFIRMING DEVICE
摘要 PURPOSE:To detect the video recording state with a simple operation and less power consumption, by reproducing a video signal for a prescribed period from a video recorder and reproducer and discriminating the good or bad of the video signal. CONSTITUTION:A video recording processing instruction is given from a microprocessor 16 through the operation of a video recording confirming push button 20 and a video signal processing circuit 18 and a camera 3 of a VTR section 1 are ready for video recording. Then, the processor 16 gives a loading instruction signal to a magnetic tape control circuit 16. A video signal from the camera 3 is processed at the circuit 18 and recorded. When the video signals for a prescribed period are recorded, the processor 16 gives a rewinding and reproducing instruction to a magnetic tape control circuit 17 and the video signal for the prescribed period is applied to a discriminating circuit 19. The circuit 19 discriminates the good or bad of the applied video signal and the signal representing the result is given to the processor 16.
申请公布号 JPS5887984(A) 申请公布日期 1983.05.25
申请号 JP19810184369 申请日期 1981.11.19
申请人 HITACHI SEISAKUSHO KK 发明人 OKAMURA FUJIO;MOURI KATSUO;AZUMA NOBUO;WATAYA YOSHIZUMI;SATOU KENJI
分类号 H04N5/7826;G11B27/36;H04N5/765;H04N17/06 主分类号 H04N5/7826
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