Method for recording and reproducing of information on an optica

Details Method for recording and reproducing of information on an optica Method for recording and reproducing of information on an optica

1988-08-26

1991-06-18

McElheny, Jr., Donald

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369116, G11B 700

Patent

active

050254391

ABSTRACT:
A method for recording and reproducing data on an optical disk of a phase-change type which is capable of being over-written, comprising steps of: writing the data by a writing light beam, erasing the written data by an erasing light beam, and reading the written data by a reading light beam, characterized by a step for initializing the optical disk so that a width of an initialized region is wider than the diameter of a spot written by the writing light beam on the optical disk.

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Journal of Applied Physics; vol. 60, No. 12, Young et al., "Effects of Transition-Metals on Telerium Alloys for Reversible Optical-Data Storage"; 15 Dec. 1986, pp. 4319-4322, copy in 369/100.

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