| 摘要 |
<p>PURPOSE:To discriminate a wide aspect ID code as well as a discrimination signal (L/S). CONSTITUTION:An L/S signal from a D-FF is inputted to 4-stages of shift registers 48 and each shift register 48 shifts the signal by one stage for one period of a control signal. An output of each stage is inputted to an XOR circuit section 50, in which XOR processing is implemented and outputs from XOR circuits 50e-50h are ANDed by an AND circuit 52, from which a wide aspect ID code is outputted. The output of the AND circuit 52 is inputted to each of 5-stages shift registers 54 each shifting the signal by one stage for 1/2 period of the control signal and the wide aspect ID code is confirmed by an AND circuit 58 receiving outputs of the stages.</p> |
