Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1990-12-10
1992-12-01
Envall, Jr., Roy N.
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369 4439, G11B 700, G11B 708
Patent
active
051684861
ABSTRACT:
An original disk having recording control data on a recording surface thereof and a blank disk having an unrecorded surface are coaxially disposed, and provided to be rotated by a spindle motor in opposite directions. A reproducing pickup for reading the recording control data on the original disk, and a recording pickup for recording data on the blank disk in accordance with the read out control data are coaxially provided. Both pickups are moved in a radial direction of the disk together in accordance with read out control data. Each pickup is independently moved in the axial direction for the focusing thereof.
REFERENCES:
patent: 4387452 (1983-06-01), Bricot et al.
patent: 4507773 (1985-03-01), McCann et al.
patent: 4797866 (1989-01-01), Yoshikawa
Envall Jr. Roy N.
Pioneer Electronic Corporation
Tran Thang V.
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