Magnetic recording/reproducing device with an improved carriage

Details Magnetic recording/reproducing device with an improved carriage Magnetic recording/reproducing device with an improved carriage

1997-11-12

2000-03-07

Klimowicz, William J.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7703, G11B 1902, G11B 2102, G11B 2124

Patent

active

060348380

ABSTRACT:
A carriage location detector comprises a scale formed on a carriage and having a plurality of slits at a predetermined interval, a photointerrupter including at least one light emitting element and a plurality of light receiving elements arranged opposite to each other with the scale interposed therebetween. The light receiving elements are so that output signals thereof have a phase difference of 90.degree. from one another. A processing circuit is responsive to the output signals from the light emitting elements for carrying out processing, in an initial setting operation, so as to keep voltage waveforms of the output signals within a predetermined range.

REFERENCES:
patent: 4780778 (1988-10-01), Gunji et al.
patent: 5235477 (1993-08-01), Inoue
patent: 5305159 (1994-04-01), Sakai et al.

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