| 摘要 |
PURPOSE:To decrease the number of terminals in case when a reproducing circuit is changed to an integrated circuit, by constituting so that information for correcting 1 data and 2 data are superposed on signals for displaying P and Q correction discriminating codes, respectively. CONSTITUTION:An output of a correcting circuit 2 generates a 1 data correction signal by P and Q corrections, by an OR circuit 22, and both said signal and a 2 data correction signal of P and Q correction outputs takes AND by an output of a timing circuit 23 and AND circuits 24, 25, and are connected to a terminal 16 and 17, respectively. The timing circuit 23 generates a pluse of thin width by once per 1 horizontal synchronizing signal section. This pulse outputs ''1'' of such thin width as cannot be perceived by eyes in case when there is an output of the correcting circuit 2, and the terminal 16, 17 have become ''0'' by an output of a control signal decoder 1, by which a light emission diode 20 or 21 is turned off. According to such constitution, the number of teminals is decreased when a reproducing circuit is changed to an integrated circuit. |
