公开(公告)号：EP1921621A1

公开(公告)日：2008-05-14

申请号：EP08151054.7

申请日：2004-04-13

申请人： NEC Corporation ,  KABUSHIKI KAISHA TOSHIBA

发明人： Ohkubo, Shuichi ,  Honma, Hiromi ,  Ogawa, Masatsugu ,  Nakano, Masaki ,  Iwanaga, Toshiaki ,  Kashihara, Yutaka ,  Nagai, Yuuji ,  Ogawa, Akihito

IPC分类号： G11B20/10 ,  G11B20/18

CPC分类号： G11B20/10009 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/1012 ,  G11B20/10296 ,  G11B20/10481 ,  G11B2020/1288 ,  G11B2220/2541

摘要： Reproduced signals are equalized by the least square technique by using a predetermined number of data samples binarized by a Viterbi decoder. Even when data written on an optical disk is unknown, the data can be equalized in a stable manner and can be reproduced at a low error rate without instability factors such as divergence due to interference.

摘要翻译： 通过使用由维特比解码器二值化的预定数量的数据样本，通过最小二乘技术来再现信号。 即使在光盘上写入的数据未知的情况下，数据也可以以稳定的方式进行均衡，并且能够以低错误率再现，而不会引起干扰引起的发散等不稳定因素。

公开(公告)号：EP1431974A2

公开(公告)日：2004-06-23

申请号：EP03028985.4

申请日：2003-12-17

申请人： NEC CORPORATION ,  Kabushiki Kaisha Toshiba

发明人： Ohkubo, Shuichi ,  Honma, Hiromi ,  Ogawa, Masatsugu ,  Nakano, Masaki ,  Iwanaga, Toshiaki ,  Kashihara, Yutaka ,  Nagai, Yuuji

IPC分类号： G11B20/10 ,  G11B7/004

CPC分类号： G11B20/10009 ,  G11B20/10055 ,  G11B20/1012 ,  G11B20/10296 ,  G11B2220/20 ,  G11B2220/216 ,  G11B2220/218

摘要： In order to evaluate the quality of a signal recorded on an optical recording medium, a target signal is obtained based on a predetermined data string and a predetermined partial response characteristic, and for each clock cycle, an equalization error is calculated that is a difference between the target signal and a signal reproduced each clock cycle. Further, the product of the equalization errors calculated at different times is obtained, and based on the obtained product, the quality of a signal is evaluated.

摘要翻译： 为了评价记录在光学记录介质上的信号的质量，目标信号是基于一个预定的数据串和预定部分响应特性获得，并且对于每个时钟周期，为均衡误差计算做是之间的差 目标信号和信号转载每个时钟周期。 此外，在不同的时间计算出的均衡误差的产物获得的，并且基于所获得的产品中，信号的质量进行评估。

公开(公告)号：EP1431974A3

公开(公告)日：2011-10-19

申请号：EP03028985.4

申请日：2003-12-17

申请人： NEC Corporation ,  Kabushiki Kaisha Toshiba

发明人： Ohkubo, Shuichi ,  Honma, Hiromi ,  Ogawa, Masatsugu ,  Nakano, Masaki ,  Iwanaga, Toshiaki ,  Kashihara, Yutaka ,  Nagai, Yuuji

IPC分类号： G11B20/10 ,  G11B7/004

CPC分类号： G11B20/10009 ,  G11B20/10055 ,  G11B20/1012 ,  G11B20/10296 ,  G11B2220/20 ,  G11B2220/216 ,  G11B2220/218

摘要： In order to evaluate the quality of a signal recorded on an optical recording medium, a target signal is obtained based on a predetermined data string and a predetermined partial response characteristic, and for each clock cycle, an equalization error is calculated that is a difference between the target signal and a signal reproduced each clock cycle. Further, the product of the equalization errors calculated at different times is obtained, and based on the obtained product, the quality of a signal is evaluated.

公开(公告)号：EP1441333A3

公开(公告)日：2007-04-18

申请号：EP04000855.9

申请日：2004-01-16

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Ogawa, Akihito ,  Noda, Chosaku ,  Matsumaru, Masaaki ,  Nagai, Yuuji

IPC分类号： G11B7/007

CPC分类号： G11B27/24 ,  G11B7/00718 ,  G11B7/24082 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2562 ,  G11B2220/2575

摘要： There is disclosed an information recording medium comprising a guide groove for recording/reproducing information in an information recording region, the information is formed as a recorded mark both in concave and convex portions of the guide groove, management information including address information is recorded by a wobble of the guide groove, and the wobble is formed in such a manner that an offset of a reproducing signal of the recorded mark generated by the wobble of the guide groove is 5.5% or less of an amplitude of the reproducing signal.

公开(公告)号：EP1441333A2

公开(公告)日：2004-07-28

申请号：EP04000855.9

申请日：2004-01-16

申请人： Kabushiki Kaisha Toshiba

发明人： Ogawa, Akihito ,  Noda, Chosaku ,  Matsumaru, Masaaki ,  Nagai, Yuuji

IPC分类号： G11B7/007

CPC分类号： G11B27/24 ,  G11B7/00718 ,  G11B7/24082 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2562 ,  G11B2220/2575

摘要： There is disclosed an information recording medium comprising a guide groove for recording/reproducing information in an information recording region, the information is formed as a recorded mark both in concave and convex portions of the guide groove, management information including address information is recorded by a wobble of the guide groove, and the wobble is formed in such a manner that an offset of a reproducing signal of the recorded mark generated by the wobble of the guide groove is 5.5% or less of an amplitude of the reproducing signal.

摘要翻译： 有游离缺失包括用于记录的导向槽/上的信息在再现信息记录区域的信息记录介质上的盘，该信息被形成为在所述导槽的凹部和凸部所记录的markboth，管理信息包括地址信息由记录 所述引导槽的摆动，并且摆动是在寻求方式形成没有通过所述引导槽的摆动所产生的记录标记的再现信号的抵消是5.5％或更小的重放信号的振幅的。