| 摘要 |
<p>PURPOSE:To reduce the constituting element of a whole system by supplying power to a video output device by an electronic equipment which is positioned between a video processor and the video output device. CONSTITUTION:When a word processor 15 inputs video data from a video camera 1, the processor 15 goes to a video input mode. Practically, when a CPU in the processor 15 receives a video input expression from a keyboard, the level of a command line 12 is made active and the power of a power source line 14 is supplied to an interface equipment 5. The equipment 5 receives the power supply and respective circuits in an internal part are operated. However, a power source control circuit 8 converts the power into a voltage, which is requested by the camera 1, and the power is supplied simultaneously. Thus, since the equipment 5 supplies the power to the video output device, the constituting element of the whole system can be reduced.</p> |
