Write control method and apparatus for writing optical disk data

Details Write control method and apparatus for writing optical disk data Write control method and apparatus for writing optical disk data

1992-09-29

1994-07-05

Young, W. R.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

369 54, 369116, G11B 7007, G11B 2110

Patent

active

053274113

ABSTRACT:
A write control method for writing optical disk data wherein pits are written by a write signal composed of mark signal parts and space signal parts, and a length of each pit represents the optical disk data, comprising the steps of: converting the mark signal parts to pulses and generating a series of pulse trains which correspond to lengths of the mark signal parts, respectively; controlling a lengths and/or amplitude of each of the pulse trains in accordance with a length of the space signal part immediately before the mark signal part; and applying successively the controlled pulse trains to a laser irradiation device so that the pits are written.

REFERENCES:
patent: 4473829 (1984-09-01), Immink et al.
patent: 4646103 (1987-02-01), Sugiyama et al.
patent: 4835759 (1989-05-01), Saito et al.
patent: 4866692 (1989-09-01), Saito et al.
patent: 4873680 (1989-10-01), Chung et al.
patent: 4894816 (1990-01-01), Sukeda et al.
patent: 5001692 (1991-03-01), Farla et al.
patent: 5003527 (1991-03-01), Matsumoto et al.
Patent Abstracts of Japan, vol. 13, No. 85 (p. 834), Feb. 27, 1989 for JP 63-26663 (Nov. 2, 1988).

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