Optical disk with a groove for defining serial data modulated in

Details Optical disk with a groove for defining serial data modulated in Optical disk with a groove for defining serial data modulated in

1998-05-06

2000-08-01

Dinh, Tan

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

3692755, G11B 724

Patent

active

060976950

ABSTRACT:
An optical disc has a track pitch of up to 0.64 .mu.m and a light transmitting layer thickness of up to 177 .mu.m. An optical disc apparatus for reliably detecting an address recorded on the optical disc utilizes the information recording surface with high density recording on the disc. The address data such as position information is recorded to the optical disc using a groove formed as the laser beam guiding groove. The groove is formed by modulating a signal formed by bi-phase modulating the address data.

REFERENCES:
patent: 4807204 (1989-02-01), Mizutani et al.
patent: 5255260 (1993-10-01), Yamada et al.
patent: 5276674 (1994-01-01), Tanaka
patent: 5392263 (1995-02-01), Watanabe et al.
patent: 5592450 (1997-01-01), Yonemitsu et al.
patent: 5910932 (1999-06-01), Watanabe et al.

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