Asymmetrical DC Control Code for Dual-Layered Optical Disks
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概要
- 論文の詳細を見る
A new run-length-limited (RLL) code for dual-layered optical disks is described.It is an asymmetrical (d1, d2) = (2, 1) code, i.e., its minimum mark length is three channel bits to maintain the readback signal power, and its minimum space length is two channel bits to maintain the partial-response maximum likelihood (PRML) performance.It encodes 8 user bits into 15 channel bits.The spectral density in the low-frequency band (lower than 1/200 of the Nyquist frequency) is lower than that of the EFM-Plus code.
- 2001-03-15
著者
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Nishiya T
Systems Development Laboratory Hitachi Ltd.
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Nishiya Takushi
Systems Development Laboratory Hitachi Ltd.
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Katayama Yukari
Systems Development Laboratory, Hitachi Ltd.
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Yamakawa Hideyuki
Systems Development Laboratory, Hitachi Ltd.
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Katou Takatoshi
Systems Development Laboratory, Hitachi Ltd.
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Taira Shigeki
Systems Development Laboratory, Hitachi Ltd.
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Taira Shigeki
Systems Development Laboratory Hitachi Ltd.
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Katou Takatoshi
Systems Development Laboratory Hitachi Ltd.
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Katayama Yukari
Systems Development Laboratory Hitachi Ltd.
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Yamakawa Hideyuki
Systems Development Laboratory Hitachi Ltd.
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