Record carrier, playback apparatus and information system...

Details Record carrier, playback apparatus and information system... Record carrier, playback apparatus and information system...

2006-06-27

2006-06-27

Nguyen, Hoa T. (Department: 2656)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Control of information signal processing channel

C369S047220, C369S275300

Reexamination Certificate

active

07068574

ABSTRACT:
An information system according to the invention comprises a record carrier and a playback apparatus. The record carrier has information marks along a track thereof and exhibits first variations caused by existence and nonexistence of the information marks along the track. The first variations represent an information signal recorded on said record carrier. The record carrier further exhibits second variations caused by variations associated with the information marks. The phase of the second variations is coupled to the phase of the first variations.

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patent: 5930210 (1999-07-01), Timmermans et al.
patent: 5999504 (1999-12-01), Aoki
patent: 6069870 (2000-05-01), Maeda et al.
patent: 6295270 (2001-09-01), Van Den Enden et al.
patent: 6345018 (2002-02-01), Maegawa et al.
patent: 6549495 (2003-04-01), Spruit et al.

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