Optical information recording medium
AssigneesPioneer Electronic Corporation, Pioneer Video Corporation
InventorsHiroki Iwata, Yutaka Murakami
Life of this patent
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Abstract
An optical information recording medium, such as an optical disk, includes a meandering guide groove being varied in period according to first additional information and in amplitude according to second additional information. The optical information recording medium enables recording a plurality of kinds of information in addition to the first and second additional information in accordance with a multiple recording system.
Claims3
An optical information recording medium having a meandering guide groove on its recording surface for writing information optically in the guide groove or between the adjoining guide grooves, being characterized in that:
- a period of meandering of the guide groove is varied by first additional information which comprises a digital address signal, and an amplitude of meandering of the guide groove is varied by second additional information and is kept within a range of 3-15% of the track pitch.
Dependencies are inferred from the claim text.