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    Optical disk recording device and optical disk recording method
    2.
    发明公开
    Optical disk recording device and optical disk recording method 审中-公开
    Aufzeichnungsvorrichtung mit optischer Platte und Aufzeichnungsverfahren mit optischer Platte

    公开(公告)号：EP2657937A2

    公开(公告)日：2013-10-30

    申请号：EP13163523.7

    申请日：2013-04-12

    Applicant: Funai Electric Co., Ltd.

    Inventor： Shimizu, Shinya ,  Mitsuda, Hiroshi

    IPC: G11B7/1267 ,  G11B20/10

    CPC classification number: G11B27/36 ,  G11B7/1267 ,  G11B20/10481 ,  G11B2020/1275 ,  G11B2220/2537

    Abstract: The present invention optimizes recording power based on correct β value. Whether an average of modulation values between the 2-4th AUNs is equal to or less than 65% of an average of modulation values between the 5-7th AUNs or not is judged. Otherwise, the gradual emission is performed, the β value is measured, and then the following requirement is judged: average of β values between 5 - 7 ⁢ th AUNs - average of β values between 2 - 4 ⁢ th AUNs ≥ 0.18 If each requirement is satisfied, track shift is judged to occur. The recording area of high output is compared with the recording area of lower output to judge whether or not magnitude relation matches the correct magnitude relation. Also, whether the difference between the β value of high output and the β value of lower output is equal to or more than the predetermined value (0.18) or not is judged.

    Abstract translation: 本发明基于正确的²值优化记录功率。 判断第2-4 AUN之间的调制值的平均值是否等于或小于第5-7 AUN之间的调制值的平均值的65％。 否则，进行逐渐排放，²值进行测量，然后判断以下要求：²值之间的平均值为5 - 7 ¢¢UN s²²²²²²‰‰‰‰‰‰‰‰‰‰‰‰0.18 0.18 如果满足每个要求，则判断轨迹偏移发生。 将高输出的记录区域与较低输出的记录区域进行比较，以判断大小关系是否与正确的大小关系相匹配。 此外，判断高输出值与²低输出值之间的差是否等于或大于预定值（0.18）。

    Method and system for determining the quality of a storage system
    3.
    发明公开
    Method and system for determining the quality of a storage system 审中-公开
    公司简介和系统zur Bestimmung derQualitäteines Speichersystems

    公开(公告)号：EP2428952A1

    公开(公告)日：2012-03-14

    申请号：EP10305963.0

    申请日：2010-09-08

    Applicant: Thomson Licensing

    Inventor： Hepper, Dietmar ,  Theis, Oliver ,  Chen, Xiao-Ming ,  Hoelzemann, Herbert ,  Pilard, Gael

    IPC: G11B7/125 ,  G11B7/24 ,  G11B20/10

    CPC classification number: G11B20/1816 ,  G11B7/1267 ,  G11B7/24 ,  G11B20/10481 ,  G11B20/182 ,  G11B20/20 ,  G11B2220/2537

    Abstract: In accordance with an exemplary embodiment of the present invention, a method (100) for measuring a quality parameter of an optical storage system comprising a non-diffraction-limited optical storage medium and a readout device, the method comprising the process of deriving (110) an impulse response of the optical storage system, and the process of analyzing (120) the impulse response to determine at least one of a width of the impulse response and a skewness of the impulse response as the quality parameter.

    Abstract translation: 根据本发明的示例性实施例，一种用于测量包括非衍射限制光学存储介质和读出装置的光学存储系统的质量参数的方法（100），所述方法包括导出（110 ）光存储系统的脉冲响应，以及分析（120）脉冲响应以确定脉冲响应的宽度和脉冲响应的偏度中的至少一个作为质量参数的过程。

    SYSTEMS AND METHODS FOR ADAPTIVE EQUALIZATION IN RECORDING CHANNELS
    7.
    发明公开
    SYSTEMS AND METHODS FOR ADAPTIVE EQUALIZATION IN RECORDING CHANNELS 审中-公开
    系统和方法自适应均衡IN录音通道

    公开(公告)号：EP2198427A1

    公开(公告)日：2010-06-23

    申请号：EP08863839.0

    申请日：2008-10-27

    Applicant: LSI Corporation

    Inventor： MATHEW, George ,  LEE, Yuan, Xing ,  SONG, Hongwei ,  JINGFENG, Liu ,  PARK, Jongseung

    IPC: G11B21/02 ,  G11B20/10 ,  G11B5/00

    CPC classification number: G11B19/041 ,  G11B5/09 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/10481 ,  G11B2220/2516

    Abstract: Various embodiments of the present invention provide systems and methods for performing adaptive equalization. For example, various embodiments of the present invention provide methods for adaptive equalization that include providing a data processing system with an equalizer circuit (210) and a target filter circuit (265). The equalizer circuit performs equalization based at least in part on an equalizer coefficient (215). The methods further include generating an error (285) based upon a first output from the equalizer circuit and a second output from the target filter circuit. An inter-symbol interference component (295) is extracted from the error (285) and used to calculate an equalizer gradient (226). Based at least in part on the equalizer gradient (226), the equalizer coefficient (215) is calculated.

    OPTICAL INFORMATION RECORDING MEDIUM AND OPTICAL INFORMATION PROCESSING APPARATUS
    8.
    发明公开
    OPTICAL INFORMATION RECORDING MEDIUM AND OPTICAL INFORMATION PROCESSING APPARATUS 审中-公开
    OPTISCHES信息资源新闻资讯

    公开(公告)号：EP2175447A1

    公开(公告)日：2010-04-14

    申请号：EP08764924.0

    申请日：2008-05-30

    Applicant: Sharp Kabushiki Kaisha

    Inventor： MORI, Go ,  YAMADA, Hirohisa ,  YAMAMOTO, Masaki ,  HARADA, Yasuhiro ,  TAJIMA, Hideharu ,  MAEDA, Shigemi ,  MURAKAMI, Yoshiteru

    IPC: G11B7/004 ,  G11B7/005 ,  G11B7/007 ,  G11B7/125 ,  G11B7/24 ,  G11B7/243 ,  G11B7/258 ,  G11B20/14

    CPC classification number: G11B20/18 ,  G11B7/00736 ,  G11B7/24065 ,  G11B7/252 ,  G11B7/258 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/1012 ,  G11B20/10481 ,  G11B20/1217 ,  G11B20/1426 ,  G11B2220/2541 ,  G11B2220/2579

    Abstract: This invention allows super-resolution reproduction with which a better bER value is attainable, when information is recorded by a random pattern including a mark length not longer than a resolution limit, by use of a highly versatile signal decoding method.
    Information is recorded as marks and spaces coded by RLL(1,7) modulation, which each of the marks and spaces have one of a plurality of lengths, and 2T marks and 2T spaces of the marks and spaces being formed are shorter than 0.12 µm. An information recording layer (20) includes a reproduction film (21) and a reflective film (22) which are provided in this order from a side from which reproducing light is incident, which reproduction film is made of (i) zinc oxide, (ii) strontium titanate, (iii) titanium oxide, (iv)cerium oxide, or (v) a material including at least one of the (i) through (iv), and which reflective film is made of tantalum or titanium.

    Abstract translation: 通过使用高度通用的信号解码方法，当通过包括不超过分辨率极限的标记长度的随机图案记录信息时，本发明允许可获得更好的bER值的超分辨率再现。 信息被记录为通过RLL（1,7）调制编码的标记和空间，其中每个标记和间隔具有多个长度中的一个，并且形成的标记和间隔的2T标记和2T间隔短于0.12μm 。 信息记录层（20）包括从再生光入射侧起依次设置的再生膜（21）和反射膜（22），该再生膜由（i）氧化锌（ ii）钛酸锶，（iii）氧化钛，（iv）氧化铈，或（v）包含（i）至（iv）中的至少一种的材料，并且该反射膜由钽或钛制成。

    Optical information recording method, optical information reproduction method and optical disk device
    9.
    发明公开
    Optical information recording method, optical information reproduction method and optical disk device 审中-公开
    Optisches Informationsaufzeichnungsverfahren，optisches Informationswiedergabeverfahren und optischesPlattengerät

    公开(公告)号：EP2136369A2

    公开(公告)日：2009-12-23

    申请号：EP09251573.3

    申请日：2009-06-16

    Applicant: Hitachi Ltd.

    Inventor： Nishimura, Koichiro ,  Nakamura, Yusuke

    IPC: G11B20/10 ,  G11B7/004 ,  G11B7/125

    CPC classification number: G11B20/10009 ,  G11B7/00456 ,  G11B7/1267 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/10194 ,  G11B20/10212 ,  G11B20/10222 ,  G11B20/10481

    Abstract: When a phase shift is to be evaluated, based on a difference between an output from a waveform equalization circuit (116) to equalize an input reproduced signal to a predetermined target equalization characteristic and the target equalization characteristic, the phase shift of the reproduced signal relative to a channel clock, a group delay characteristic with respect to the frequency of the waveform equalization circuit is fixed. Hence, an equalized waveform as an output from the waveform equalization circuit (116) can preserve phase shift information of the inputted reproduced signal to correctly detect the phase shift of the reproduced waveform using the equalized waveform. It is hence possible to realize, with high precision, optimal value learning of various parameters for the recording, reproduction, and servo by use of the phase shift as an index.

    Abstract translation: 当要评估相移时，基于来自波形均衡电路（116）的输出之间的差以使输入再现信号均衡到预定目标均衡特性和目标均衡特性，再现信号相对 对于通道时钟，相对于波形均衡电路的频率的组延迟特性是固定的。 因此，作为来自波形均衡电路（116）的输出的均衡波形可以保持输入的再现信号的相移信息，以使用均衡波形来正确地检测再生波形的相移。 因此，通过使用相移作为指标，可以高精度地实现用于记录，再现和伺服的各种参数的最佳值学习。

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