Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Patent
1994-08-31
1997-01-07
Neyzari, Ali
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
369280, 369 50, 369 54, G11B 724
Patent
active
055924638
ABSTRACT:
An apparatus for recording information on a recordable optical disc by applying a light beam on the surface thereof, the disc includes a first recording area on which information is recorded and reproduced while the disc is rotated at a first linear velocity; and a second recording area on which information is recorded and reproduced while the disc is rotated at a second linear velocity. The first recording area includes a test recording area. The apparatus includes recording power determining unit for determining first optimum recording power for recording information on the first area by a test recording utilizing the test recording area, and for determining second optimum recording power for recording information on the second area by multiplying the first optimum recording power by a predetermined constant.
REFERENCES:
patent: 5093820 (1992-03-01), Maeda et al.
patent: 5109369 (1992-04-01), Maeda et al.
patent: 5276670 (1994-01-01), Nogami et al.
patent: 5343452 (1994-08-01), Maeda et al.
Inoue Akiyoshi
Murakami Shigenori
Muramatsu Eiji
Takahashi Hiroyuki
Takishita Toshihiko
Neyzari Ali
Pioneer Electronic Corporation
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