Index signal issue mechanism of a magnetic record and reproducti

Details Index signal issue mechanism of a magnetic record and reproducti Index signal issue mechanism of a magnetic record and reproducti

1985-03-05

1987-03-31

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 99, G11B 5016, G11B 1702

Patent

active

046547258

ABSTRACT:
An index signal issue mechanism of a magnetic record and reproducing device has a magnetic disc, a spindle hub which chuck and rotates the magnetic disc and has a lower surface, a driving pin arranged on the spindle hub and engaging the spindle hub, a support spring secured to said lower surface of said spindle hub and supporting said driving pin, a reflection plate extending to said support spring, and a photo sensor arranged opposite to said reflection plate.

REFERENCES:
patent: 4445157 (1984-04-01), Takahashi
patent: 4485464 (1984-11-01), Shimaoka

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