Optical disk having pattern displayed thereon and apparatus for

Details Optical disk having pattern displayed thereon and apparatus for Optical disk having pattern displayed thereon and apparatus for

1997-07-07

1998-05-12

Hindi, Nabil

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

G06K 1906

Patent

active

057516901

ABSTRACT:
An optical disk in which a pattern such as a character that can be recognized is displayed in an information recording area by display pits or grooves formed between recording tracks constructed by pit trains indicative of information signals. An apparatus for manufacturing the optical disk in which information and display modulation light beams obtained by modulating a light beam in accordance with pattern signals for information and display, respectively, are separated from each other in the disk radial direction and are simultaneously irradiated to a resist layer formed on a recording surface of a disk.

REFERENCES:
patent: 5285438 (1994-02-01), Marchand et al.
patent: 5347509 (1994-09-01), Goldberg et al.
patent: 5398231 (1995-03-01), Shin et al.
patent: 5608717 (1997-03-01), Ho et al.
patent: 5608718 (1997-03-01), Schiewe

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