Magnetic head apparatus

Details Magnetic head apparatus Magnetic head apparatus

G - Physics

11

B

352/20, 352/29.0

G11B 5/33 (2006.01) G11B 5/00 (2006.01)

Patent

CA 1227278

- 27 - Abstract of the Disclosure A magnetic recording head apparatus includes: a magnetic head body opposing a traveling magnetic tape; a tuning circuit having the head body as a variable inductance element; a high-frequency signal source for generating a high-frequency signal; and a detector connected to the tuning circuit. The inductance of the head body is changed in accordance with a change in the magnetic signal field applied from the magnetic tape. The high-frequency signal is amplitude modulated in accordance with the high-frequency signal. A peak or envelope waveform of the modulated high-frequency signal is detected by a detector, thereby obtaining a reproduced information signal.

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