Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Patent
1991-09-04
1995-10-10
Young, W. R.
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
369 48, 369 50, G11B 700
Patent
active
054576741
ABSTRACT:
An optical disc recording apparatus which records data with a second rotation frequency on an optical disc containing a preliminarily written recording condition in relation to a first rotation frequency. The optical disc recording apparatus preliminarily possesses recording condition in relation to the first and second rotation frequencies. The optical disc recording apparatus initially reads the recording condition in relation to the first rotation frequency, and then, in accordance with the read-out recording condition in relation to the first rotation frequency and the stored recording condition in relation to the first and second rotation frequencies, the recording apparatus computes the recording condition applicable to the optical disc in relation to the second rotation frequency. Finally, the optical disc recording apparatus records data on the optical disc by applying the computed recording condition. In consequence, even when the recording condition in relation to the second rotation frequency is not yet known, the apparatus can securely execute the data recording operation.
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ISO/IEC 10089:1991, pp. 31-34.
Tanaka Kunimaro
Watanabe Isao
Yamada Koichi
Yoshimoto Kyosuke
Mitsubishi Denki & Kabushiki Kaisha
Tran Thang V.
Young W. R.
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