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公开(公告)号：US08531932B2
公开(公告)日：2013-09-10
申请号：US12608099
申请日：2009-10-29
IPC分类号： G11B20/10
CPC分类号： G11B20/10009 , G11B7/1267 , G11B20/10046 , G11B20/10055 , G11B20/1012 , G11B20/10212 , G11B20/10296 , G11B20/10481 , G11B20/1816 , G11B20/182 , G11B20/22 , G11B20/225 , G11B2220/2541 , H03M13/41
摘要： In a optical disc system with constraint length equal to or greater than 5, under assumption that continuous 2T count included in a predetermined evaluation bit array is denoted by i and that length of evaluation bit array of interest is given by (5+2i), judgment is passed on whether binary bit arrays include the evaluation bit array. Previously prepared are the error vectors calculated on the basis of target signals corresponding to the evaluation bit arrays and the target signals derived from the binary bit arrays, and the selection of a desired error vector is performed depending on the result of the judgment. At the same time, an equalized error vector is calculated from the target signal derived from the binary bit array and the reproduced signal, and the inner product of the equalized error vector and the selected error vector is calculated.
摘要翻译： 在具有等于或大于5的约束长度的光盘系统中，假定包括在预定评估位阵列中的连续2T计数由i表示，并且感兴趣的评估位阵列的长度由（5 + 2i）给出， 传递二进制位数组是否包含评估位数组的判断。 先前准备的是基于对应于评估比特列的目标信号和从二进制位阵列导出的目标信号计算的误差向量，并且根据判断结果执行期望误差向量的选择。 同时，根据从二进制位阵列和再现信号得到的目标信号计算均衡误差向量，并且计算均衡误差向量和所选误差向量的内积。
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公开(公告)号：US20100284257A1
公开(公告)日：2010-11-11
申请号：US12608099
申请日：2009-10-29
IPC分类号： G11B20/18
CPC分类号： G11B20/10009 , G11B7/1267 , G11B20/10046 , G11B20/10055 , G11B20/1012 , G11B20/10212 , G11B20/10296 , G11B20/10481 , G11B20/1816 , G11B20/182 , G11B20/22 , G11B20/225 , G11B2220/2541 , H03M13/41
摘要： In a optical disc system with constraint length equal to or greater than 5, under assumption that continuous 2T count included in a predetermined evaluation bit array is denoted by i and that length of evaluation bit array of interest is given by (5+2i), judgment is passed on whether binary bit arrays include the evaluation bit array. Previously prepared are the error vectors calculated on the basis of target signals corresponding to the evaluation bit arrays and the target signals derived from the binary bit arrays, and the selection of a desired error vector is performed depending on the result of the judgment. At the same time, an equalized error vector is calculated from the target signal derived from the binary bit array and the reproduced signal, and the inner product of the equalized error vector and the selected error vector is calculated.
摘要翻译： 在具有等于或大于5的约束长度的光盘系统中，假定包括在预定评估位阵列中的连续2T计数由i表示，并且感兴趣的评估位阵列的长度由（5 + 2i）给出， 传递二进制位数组是否包含评估位数组的判断。 先前准备的是基于对应于评估比特列的目标信号和从二进制位阵列导出的目标信号计算的误差向量，并且根据判断结果执行期望误差向量的选择。 同时，根据从二进制位阵列和再现信号得到的目标信号计算均衡误差向量，并且计算均衡误差向量和所选误差向量的内积。
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公开(公告)号：US20060233070A1
公开(公告)日：2006-10-19
申请号：US11194599
申请日：2005-08-02
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/0053 , G11B7/0943 , G11B7/24079
摘要： The amount of focus offset and the amount of spherical aberration correction are adjusted with respect to a disk on which no data is recorded with high precision. The amount of focus offset and the amount of spherical aberration correction are adjusted on the basis of (1) a focus error signal amplitude, (2) a tracking error signal amplitude in a wide track pitch region, and (3) a rectangular waveform wobble signal envelop level.
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4.发明申请METHOD FOR ADJUSTING RECORDING CONDITION, OPTICAL DISC DEVICE, AND INFORMATION RECORDING METHOD 有权调整记录条件的方法，光盘装置和信息记录方法公开(公告)号：US20120250480A1
公开(公告)日：2012-10-04
申请号：US13516011
申请日：2010-03-02
IPC分类号： G11B20/10
CPC分类号： G11B7/00456 , G11B7/0062 , G11B7/126 , G11B20/10009 , G11B20/10212 , G11B20/10277 , G11B20/10407 , G11B2220/2541
摘要： Provided is a recording adjustment method capable of controlling an edge position of a mark with high accuracy. Based on the acquired read-out signal waveform, a starting position of a last pulse is adjusted such that a so-called L-SEAT shift value for an end edge of the mark becomes minimum.
摘要翻译： 提供了一种能够高精度地控制标记的边缘位置的记录调整方法。 基于所获取的读出信号波形，调整最后脉冲的开始位置，使得标记的结束边缘的所谓的L-SEAT移位值变为最小。
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公开(公告)号：US20100195462A1
公开(公告)日：2010-08-05
申请号：US12568977
申请日：2009-09-29
IPC分类号： G11B27/36
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/1012 , G11B20/10212 , G11B20/10296 , G11B20/1816 , G11B20/182 , G11B2220/2541 , H03M13/39 , H03M13/6343
摘要： A highly efficient and reliable reproduced signal evaluation method and an optical disc drive using that method in which assuming that the number of 2T's appearing successively in a predetermined evaluation bitstream is i, the evaluation bitstream is divided into a main bitstream (5+2i) long and sub bitstreams at the ends of the main bitstream. The check process to determine whether a predetermined evaluation bitstream is included in the binarized bitstreams is replaced with a main bitstream agreement check. This can prevent an increase in the circuit size. At the same time, by separately summing up for each main bitstream the calculated results of Euclidean distance between the reproduced signal and the target signal corresponding to the evaluation bitstream, the size of an evaluation summing circuit can be reduced.
摘要翻译： 使用该方法的高效可靠的再现信号评估方法和光盘驱动器，其中假定在预定评估比特流中连续出现的2T的数量为i，则将评估比特流分成主比特流（5 + 2i）长 以及在主比特流的末端的子比特流。 用于确定在二进制化比特流中是否包括预定评估比特流的检查处理被主比特列协议检查替换。 这可以防止电路尺寸的增加。 同时，通过对每个主比特流单独地求和再现信号与对应于评估比特流的目标信号之间的欧氏距离的计算结果，可以减小评估求和电路的大小。
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公开(公告)号：US08264932B2
公开(公告)日：2012-09-11
申请号：US13192036
申请日：2011-07-27
IPC分类号： G11B20/14 , G11B7/0045 , G11B5/09 , G11B20/10 , G11B27/36
CPC分类号： G11B20/10009 , G11B7/0045 , G11B7/005 , G11B20/10046 , G11B20/10055 , G11B20/1012 , G11B20/10212 , G11B20/10296 , G11B20/10481 , G11B20/1816 , G11B20/182 , G11B20/22 , G11B20/225 , G11B2220/2541
摘要： An optical disc device and an adjusting method for a recording condition for use with the optical disc device that records data into an optical disc medium by using codes whose shortest run length is 2T and reproduces the recorded data by using an adaptive equalizing procedure and a PRML procedure, wherein the recording condition is so adjusted that a reproduced signal with desired quality can be obtained, by using, as the adaptive equalizing procedure, a procedure in which a tap coefficient Cn is set to a value obtained by averaging values of a tap coefficient an renewed by a LMS method, located symmetrically with each other along the time axis.
摘要翻译： 一种光盘装置和用于与光盘装置一起使用的记录条件的调节方法，其使用最短游程长度为2T的代码将数据记录到光盘介质中，并通过使用自适应均衡程序和PRML再现记录数据 过程，其中通过使用抽头系数Cn被设置为通过平均抽头系数的值而获得的值作为自适应均衡程序，可以获得记录条件以使得具有期望质量的再现信号 通过LMS方法更新，沿着时间轴对称地定位。
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公开(公告)号：US20110026383A1
公开(公告)日：2011-02-03
申请号：US12836743
申请日：2010-07-15
申请人： Hiroyuki MINEMURA , Takahiro Kurokawa , Junya Shiraishi , Shoei Kobayashi , Harumitsu Miyashita , Yasumori Hino
发明人： Hiroyuki MINEMURA , Takahiro Kurokawa , Junya Shiraishi , Shoei Kobayashi , Harumitsu Miyashita , Yasumori Hino
CPC分类号： G11B20/10009 , G11B7/00456 , G11B7/00458 , G11B20/10046 , G11B20/1012 , G11B20/10481 , G11B2007/0013 , G11B2220/2541
摘要： The present invention aims to provide a reproduced signal evaluation method and a write adjustment method for offering a Blu-ray disc having a large storage capacity with excellent media compatibility. An evaluation index L-SEAT is calculated through signed addition using a Euclidean distance difference calculated from at least one of target signals in which a focused edge is shifted to the right and left, and the quality of the reproduced signal is evaluated based on the evaluation index. Write condition adjustment using the index enables write adjustment not depending on SNR and achieving high adjustment accuracy.
摘要翻译： 本发明的目的在于提供一种用于提供具有良好的媒体兼容性的具有大存储容量的蓝光盘的再现信号评估方法和写入调整方法。 通过使用从聚焦边缘向左右移动的目标信号中的至少一个计算出的欧几里德距离差，通过带符号相加来计算评价指标L-SEAT，并且基于评估来评估再现信号的质量 指数。 使用该索引的写入条件调整可以使写入调整不依赖于SNR并实现高调整精度。
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8.发明授权Information recording/reproducing method and information recording/reproducing apparatus 失效信息记录/再现方法和信息记录/再现装置公开(公告)号：US07558178B2
公开(公告)日：2009-07-07
申请号：US11194599
申请日：2005-08-02
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/0053 , G11B7/0943 , G11B7/24079
摘要： The amount of focus offset and the amount of spherical aberration correction are adjusted with respect to a disk on which no data is recorded with high precision. The amount of focus offset and the amount of spherical aberration correction are adjusted on the basis of (1) a focus error signal amplitude, (2) a tracking error signal amplitude in a wide track pitch region, and (3) a rectangular waveform wobble signal envelop level.
摘要翻译： 相对于没有以高精度记录数据的盘来调整聚焦偏移量和球面像差校正量。 基于（1）聚焦误差信号幅度，（2）宽轨道间距区域中的跟踪误差信号振幅，以及（3）矩形波形摆动来调整聚焦偏移量和球面像差校正量 信号包络电平。
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9.发明申请公开(公告)号：US20090086602A1
公开(公告)日：2009-04-02
申请号：US12102936
申请日：2008-04-15
IPC分类号： G11B3/74
CPC分类号： G11B7/005 , G11B7/00736 , G11B20/10009 , G11B20/10027 , G11B20/10046 , G11B20/10055 , G11B20/10296 , G11B20/10425 , G11B20/22 , G11B2007/0013 , G11B2220/235 , G11B2220/2537
摘要： Reproduction on an optical recording medium having plural information layers involves the problem of distortion occurring due to interlayer crosstalk and hence deterioration in the quality of a readout signal. At a predetermined radius, a correction coefficient for correcting the amount of fluctuation components is calculated from a readout signal with distortion due to the interlayer crosstalk, and then is stored. The stored correction coefficient is used to eliminate crosstalk components and to correct readout signal fluctuation during reproduction on a predetermined area. In this way, the original readout signal without interlayer crosstalk components can be obtained, so that good-quality reproduction characteristics can be achieved.
摘要翻译： 在具有多个信息层的光记录介质上的再现涉及由于层间串扰而引起的失真问题，并且因此导致读出信号的质量劣化。 在预定的半径处，由于层间串扰由具有失真的读出信号计算用于校正波动分量的校正系数，然后被存储。 存储的校正系数用于消除串扰分量并且在预定区域的再现期间校正读出信号波动。 以这种方式，可以获得没有层间串扰分量的原始读出信号，从而可以实现优质的再现特性。
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10.发明授权Method and apparatus for determining the reading power of an optical reproducing device 失效用于确定光学再现装置的读取功率的方法和装置公开(公告)号：US08121014B2
公开(公告)日：2012-02-21
申请号：US11675699
申请日：2007-02-16
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/1263
摘要： Since the conventional optical disk recording/reproducing apparatus cannot correctly measure a power of a main beam that is a part of the laser light outputted from an objective lens and is focused on a recording layer to contribute to recording/reproducing, it is difficult to accurately control a read power. A ratio of a proper read power to a threshold power of erasing is acquired beforehand. The read power is determined by measuring the threshold power of erasing and multiplying it by the ratio when learning of the read power is performed for each drive device. According to the read power learning method of this invention, it becomes possible to determine the proper read power regardless of performance variance of an optical pickup and sensitivity dispersion of a medium.
摘要翻译： 由于传统的光盘记录/再现装置不能正确地测量作为从物镜输出的激光的一部分并且聚焦在记录层上以有助于记录/再现的主光束的功率，所以难以准确地 控制读取电源。 预先获取适当的读取功率与阈值的擦除功率的比率。 读取功率通过测量擦除阈值功率并将其乘以当对每个驱动装置执行读取功率的学习时的比率来确定。 根据本发明的读取功率学习方法，无论光学拾取器的性能方差和介质的灵敏度分散如何，都可以确定适当的读取功率。
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