Dynamic information storage or retrieval – Storage medium structure – Special groove
Patent
1988-04-12
1990-08-07
Psitos, Aristotelis M.
Dynamic information storage or retrieval
Storage medium structure
Special groove
3692751, 369100, 369109, 369111, G11B 372
Patent
active
049473840
ABSTRACT:
An optical disk of the type including guide grooves is improved by regulating the width of the grooves, and thus the width of the adjacent land portion, in accordance with the type of information recorded at that part of the land.
REFERENCES:
patent: 4494226 (1985-01-01), Hazel et al.
patent: 4517668 (1985-05-01), Takaoka et al.
patent: 4587648 (1986-05-01), Ando
patent: 4716560 (1987-12-01), Itonaga
patent: 4748609 (1988-05-01), Yonezawa et al.
Fukuoka Satoru
Hashikawa Hirokazu
Hayashi Tsuyoshi
Ohta Minemasa
Suzuki Kenji
Pioneer Electronic Corporation
Pioneer Video Corporation
Psitos Aristotelis M.
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