| 摘要 |
PURPOSE:To apply a correction according to a pulse width to input signals and to minimize secondary distortion by providing a delaying means for which the amount of delay is determined corresponding to the pulse width of input recording signals. CONSTITUTION:Input signals (a) are inputted to a delay circuit 5, and a saw- tooth wave generating circuit 6 and respective outputs go to O5 and O6. The output of the saw-tooth wave generating circuit 6 is inputted to a sample/hole circuit 7, and the sample/hold circuit 7 sample holds the output O6 of the saw- tooth wave generating circuit 6 at the trailing input signals (a). The output of the sample/hold circuit 7 is applied to a voltage conversion circuit 8, and the output of the voltage conversion circuit 8 controls the amount of delay of a voltage control type delays circuit 9 so that the amount of delay correction minimizing secondary distortion is given to input signals according to the pulse width of input signals (a). That is, the output O10 of a voltage control type delay circuit 9 is delayed by signal pulse width TS1-TS3 by TD1-TD3 from the output O5 of the delay circuit 5. Accordingly, the secondary distortion can be made minimum. |
