发明公开
EP0309232A2 Optical information recording and reproducing apparatus 失效
Optisches Informationsaufzeichnungs und-wiedergabegerät。

Optical information recording and reproducing apparatus
摘要:
An improved optical information recording and reproducing apparatus which is capable of detecting record­ing errors simultaneously with recording function for reduction of recording time, without requiring particular high accuracy for an optical system, and avoiding complica­tion in the construction and consequent large size of the optical system.
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