| 摘要 |
PURPOSE:To reduce the number of parts sharply by composing the titled device of a clock channel outputting the information taken out by a clock magnetic head as a clock and a data channel outputting the information taken out by a data magnetic head as a data. CONSTITUTION:The output voltages of current amplifiers 6, 6' amplifying the output current of magnetic heads 5, 5' are provided with a non-sensitive band. In addition, the titled device is provided with window comparators 7, 7' outputting a positive peak-to-peak value exceeding an upper reference voltage regarding the upper limited voltage of the non-sensitive band as the upper limited reference voltage and a negative peak-to-peak value exceeding the lower limited reference voltage regarding the lower limited voltage of the non-sensitive band as the lower limited reference voltage, and FF circuits 8, 8' which are set and reset in response to the comparators 7, 7' and generate square waves. |
