| 摘要 |
A scanning-line conversion circuit converts the number of effective scanning lines of a color signal from a YC separation circuit to 480. Further, the scanning-line conversion circuit improves resolution of a luminance signal having a 360/image plane height from the YC separation circuit by the use of a vertical reinforcement signal, and converts the number of effective scanning lines to 480. A squeeze signal from the scanning-line conversion circuit is supplied to an image recording terminal. Thus, recording of the squeeze signal is made possible. Moreover, the image recording terminal is connected to a power-supply terminal through a resistor and a switch. Upon output of the squeeze signal, direct-current voltage is supplied to the image recording terminal so that predetermined direct-current voltage is superimposed upon a color signal. It is made possible by the direct-current voltage to judge that the squeeze signal is outputted. <IMAGE> |
