High-Speed Write/Read Techniques for Blu-ray Write-Once Discs

概要

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We have been developing high-speed write/read techniques for Blu-ray discs. We carried out $1--12\times$ write/read tests on a phase-change Blu-ray write-once disc using an improved tester, an adaptive partial-response maximum-likelihood (PRML) technique, and a new write adjustment method. Sufficiently good limit equalizer jitter values of less than 6.5% were obtained under all write-speed conditions. Good bit error rates of less than $10^{-6}$ and fair power margins of more than $\pm 10$% were obtained under all write/read speed conditions.
2006-02-15