Casio Computer Co., Ltd.

Masako Kanda

Susumu Takashima

Ryuichi Hirayama

Noriyasu Murata

In a magnetic recording and/or reproducing apparatus of a rotary head type, a magnetic head having two gaps of different azimuth angles is installed on the rotary drum and a switching signal, the polarity of which is inverted every rotation of the rotary drum is generated. The duty of the switching signal is adjusted so as to correspond to a time-difference between the two gaps of the above head. The timings of the recording operation and the reproducing operation to be performed by the magnetic head are controlled on the basis of the above adjusted switching signal.

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Tokyo, Japan

Masako Kanda