Optical recording apparatus and optical disk

Details Optical recording apparatus and optical disk Optical recording apparatus and optical disk

1989-11-07

1992-07-14

Envall, Jr., Roy N.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 50, 369 54, 369 59, 369109, 369116, G11B 700

Patent

active

051309700

ABSTRACT:
Apparatus and method for forming pits in an optical disk and the resulting disk. The preformed pits in the disk are adjusted to suppress the hump phenomenon by adjusting the amplitude and duty cycle of the standard modulating pulses. The amount of adjustment depends upon the duration of the standard pulses applied.

REFERENCES:
patent: 4783774 (1988-11-01), Enomoto
patent: 5003527 (1991-03-01), Matsumoto et al.

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