Magnetic recording apparatus

G - Physics – 11 – B

Patent

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Details

352/10.41

G11B 5/008 (2006.01) G11B 5/024 (2006.01) G11B 5/127 (2006.01) G11B 5/48 (2006.01) G11B 5/53 (2006.01)

Patent

CA 1292309

ABSTRACT OF THE DISCLOSURE A magnetic recording apparatus of a helical scanning system comprises a rotary cylinder, recording heads and an erase head attached so as to project slightly from a rotary surface of the cylinder. The rotary erase head has a gap comprising a ferrite core half and a Sendust film formed on a ferrite core half opposed to the ferrite core half and having a larger saturation magnetic flux density. In addition, the recording heads and the rotary erase head are attached on the rotary cylinder so that an end located forward with respect to the tape travelling direction of the Sendust film may trace the rearside, with respect to the tape travelling direction, apart from a distance which is a half of the gap length of the rotary erase head, as compared with a forward end of a recorded track pattern formed on a tape by the recording head scanning immediately after erasure by the rotary erase head.

522595

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