Optical disk with stop-pulse generating means in a guide groove

Details Optical disk with stop-pulse generating means in a guide groove Optical disk with stop-pulse generating means in a guide groove

1997-01-27

2000-02-29

Hindi, Nabil

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

3692754, 369 58, G11B 700

Patent

active

060318147

ABSTRACT:
A recording and reproducing apparatus for an optical disk of the transitional type that can be overwritten, having an optical information recording medium. The medium has a guide groove and a sector ID area. Information is recorded by irradiation with a light beam to change a state of a photo-sensitive record layer, and the recording may be stopped by the generation of a stop pulse. The stop pulse may be generated by an altered width of the guide groove before the sector ID area, or by one or more larger prepits before the sector ID area.

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