| 摘要 |
PURPOSE:To enable correction of peak shift by generating a correcting signal from a pulse generated at peak point of reproduction signals and adding and subtracting the reproduction signal and correcting signal in analog. CONSTITUTION:A correcting signal generating circuit 7 generates a correcting signal C1 from a pulse S5 from a zero crossing detector 5, and a generating circuit 8 generates a correcting signal C2 from a pulse S6. An adder 9 analog subtracts the signal C1 from a reproduction signal S3, and analog adds the signal C2 to make a corrected signal C9. A differentiator 4 differentiates the signal S9 to make a signal S4, and a detector 5 makes signals S5 and S6 from the signal S4, and these pulses are outputted through an OR gate 6. Accordinglh, correction of peak shift can be made by making the signal S9 by analog addition of signal S3 and signal -C1. |
