Title:
OPTICAL INFORMATION READER
Document Type and Number:
Japanese Patent JPS5371808
Kind Code:
A
Abstract:
PURPOSE: To stably drive the light-direction-variable unit, by integrating the track-positiondetecting signal according to the supplementary beam on the disk type record-carrier and the differentiated value of the read-beam-signal, and adding the integrated result to the supplementary beam-signal.
Inventors:
TAGUCHI TOYOKI
Application Number:
JP14747776A
Publication Date:
June 26, 1978
Filing Date:
December 08, 1976
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
H04N5/85; G02B27/00; G11B7/09; (IPC1-7): G02B27/40; G11B7/08; H04N5/84
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