Servo error write blanking circuit for an optical recording disk

Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval

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369 45, 369 46, 369100, 369116, G11B 382, G11B 2110

Patent

active

047180544

ABSTRACT:
A blanking circuit used with an optical recording disk system for eliminating the effect of far field shift during high laser power writing on a disk. The circuit provides a differential output one-shot that is fired for a time long enough for write pulse transients to be gone from photo diodes in a light detector before the circuit switches are returned to a read mode.

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