Apparatus for recording/reproducing of a double-sided optic disk

Details Apparatus for recording/reproducing of a double-sided optic disk Apparatus for recording/reproducing of a double-sided optic disk

1992-05-15

1993-11-16

Psitos, Aristotelis

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369199, 369 4414, G11B 700

Patent

active

052630137

ABSTRACT:
An apparatus for recording/reproducing of a double-sided optic disk includes a main pickup which supplies a light beam and detects a reflected light beam for recording/reproducing from one side of an optic disk. After completing the recording/reproducing of one side, the main pickup moves outside a periphery of the optic disk for recording/reproducing another side. The apparatus includes a mirror member which reflects the light beam supplied from the main pickup positioned outside the periphery to the other side of the optic disk, and an auxiliary pickup which focuses and scans the light beam on the other side via the mirror member. The light beam reflected from the other side of the optic disk is detected by the main pickup.

REFERENCES:
patent: 4058834 (1977-11-01), Miyaoka
patent: 4926403 (1990-05-01), Tsuyuguchi et al.
patent: 4953154 (1990-08-01), Takahara et al.

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