Write-one type recording medium storing time and data-writing ma

Details Write-one type recording medium storing time and data-writing ma Write-one type recording medium storing time and data-writing ma

1990-12-26

1993-05-18

LaRoche, Eugene R.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

369278, 369279, G11B 370, G11B 584, G11B 726

Patent

active

052126820

ABSTRACT:
A write once-type recording medium with a guide groove has a first management data for constantly managing a position of a track in the groove after data-writing/reading is excuted and a second management data for managing the data-writing, both optically recorded on a position in the groove displaced from that position. A recording apparatus has a reproducing device reproducing by tracking control a management data of track-position management data whose specific portions replaced with data-writing management data, a comparator having reference data equal to the track-position management data comparing the management data with the reference data, a controller outputting the management data as the track-position management data if both equal to each other, and judging if the management data corresponding to the specific portion if not equal, then outputting the management data as the data-writing management data if there is correspondence and excuting error correction if no correspondence meaning an error generated in the management data and a managing device managing the tracking control with the outputted track-position management data and data-writing with the outputted data-writing management data.

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patent: 4967403 (1990-10-01), Ogawa et al.
patent: 5056076 (1991-10-01), Tsuji et al.
patent: 5091635 (1992-02-01), Akatsuka et al.

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