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公开(公告)号：US07852722B2
公开(公告)日：2010-12-14
申请号：US11488625
申请日：2006-07-19
CPC分类号： G11B20/18 , G11B19/04 , G11B20/10009 , G11B20/10046 , G11B20/10111 , G11B20/10296 , G11B20/10481 , G11B2020/1288 , G11B2020/183 , G11B2220/218 , G11B2220/2541
摘要： Provided is an optical disk apparatus which has high read retry ability and high compatibility by performing a proper verify for other apparatuses. The optical disk apparatus includes a playback system capable of arbitrarily changing playback performance, and means which detects and determines a factor causing a read error. Moreover, a read retry is performed by use of playback parameters corresponding to the factor causing the read error. Furthermore, a verify is performed with the playback performance of the playback system lowered.
摘要翻译： 提供了通过对其他装置进行适当的验证而具有高读写重试能力和高兼容性的光盘装置。 光盘装置包括能够任意改变播放性能的重放系统，以及检测并确定导致读取错误的因素的装置。 此外，通过使用与引起读取错误的因素相对应的播放参数来执行读取重试。 此外，在播放系统的播放性能降低的情况下执行验证。
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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：US20100260025A1
公开(公告)日：2010-10-14
申请号：US12569021
申请日：2009-09-29
IPC分类号： G11B20/10
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： A method for evaluating reproduced signal wherein when Euclidean distance is calculated by judging the coincidence between a binary bit array and a predetermined evaluation bit array in the evaluation of the quality of reproduced signal, in a large capacity optical disc system with constraint length equal to or greater than 5, the assumption is made that the continuous 2T count included in a predetermined evaluation bit array is denoted by i and that each evaluation bit array is composed of a main bit array having a bit length of (5+2i) and auxiliary bit arrays added before and after the main bit array; judgment on whether binary bit arrays include the predetermined evaluation bit array, is concentrated on the coincidence judgment of the main bit arrays; and at the same time, the Euclidean distance between the reproduced signal and the target signal corresponding to the evaluation bit array is calculated with respect to each main bit array and the results of such calculations are separated and counted.
摘要翻译： 一种用于评估再现信号的方法，其中在限制长度等于或等于的大容量光盘系统中，通过判断再现信号质量评估中的二进制位阵列和预定评估位阵列之间的一致性来计算欧几里得距离 大于5，假设包括在预定评估位阵列中的连续2T计数由i表示，并且每个评估位阵列由具有位长度（5 + 2i）的主位阵列和辅助位 主阵列之前和之后添加的阵列; 关于二进制位阵列是否包括预定的评估位阵列的判断集中在主位阵列的重合判断上; 并且同时，相对于每个主比特阵列计算再现信号和对应于评估比特阵列的目标信号之间的欧几里德距离，并且对这些计算的结果进行分离和计数。
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74.发明授权公开(公告)号：US07813258B2
公开(公告)日：2010-10-12
申请号：US11836883
申请日：2007-08-10
IPC分类号： G11B3/70
CPC分类号： G11B7/005 , G11B7/24062 , G11B7/24065 , G11B7/252 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316
摘要： A disc structure for making an inverted optical response through a super-resolution process using a recorded mark portion and a space portion, which is realized to amplify a signal amplitude and solve a conventional problem that a conventional super-resolution technique can obtain only small signals, since the super-resolution area is reduced to realize high density recording of data.
摘要翻译： 一种用于通过使用记录标记部分和空间部分的超分辨率处理进行反相光学响应的盘结构，其被实现为放大信号幅度并解决传统的超分辨率技术可以仅获得小信号的常规问题 ，因为超分辨率区域被减少以实现数据的高密度记录。
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公开(公告)号：US07746734B2
公开(公告)日：2010-06-29
申请号：US11674239
申请日：2007-02-13
申请人： Mariko Umeda , Hiroyuki Minemura , Motoyuki Suzuki
发明人： Mariko Umeda , Hiroyuki Minemura , Motoyuki Suzuki
IPC分类号： G11B7/00
CPC分类号： G11B7/0903 , G11B7/094 , G11B7/0941 , G11B7/0943 , G11B7/0953 , G11B7/1263 , G11B2007/0006 , G11B2007/0013
摘要： A tracking offset is reduced. The effect of an SPP signal fluctuation is reduced by using a variable mixing ratio DPP method, and a residual tracking offset is minimized.
摘要翻译： 跟踪偏移减少。 通过使用可变混合比DPP方法来降低SPP信号波动的影响，并且残留跟踪偏移被最小化。
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公开(公告)号：US20090252005A1
公开(公告)日：2009-10-08
申请号：US12219580
申请日：2008-07-24
申请人： Junko Ushiyama , Hiroyuki Minemura
发明人： Junko Ushiyama , Hiroyuki Minemura
IPC分类号： G11B20/10
CPC分类号： G11B7/0062 , G11B7/1267
摘要： The object of the present invention is to provide a test writing method for seeking the optimum write power correctly and in a short time under a high speed recording condition in a test writing method and an information recording device for recording information by forming different marks from the unrecorded part by injecting energy onto the recording medium. To achieve the above object, even number length marks and odd number length marks are separately test written in the 2T strategy to seek the respective optimum write power. Due to the possibility of enhancing the precision of test writing, a good recording ability can be obtained.
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公开(公告)号：US07599271B2
公开(公告)日：2009-10-06
申请号：US11051186
申请日：2005-02-07
申请人： Hiroyuki Minemura
发明人： Hiroyuki Minemura
IPC分类号： G11B7/00
CPC分类号： G11B7/1267
摘要： An optical disk apparatus has a highly accurate trial writing function corresponding to a PRML system and copes with a bad jitter of a 2Tw mark in order to realize an optical disk, the recording/reproduction of which is enabled in both a DVD and a Blu-ray Disc by a drive. After a reproducing signal is A/D-converted, error pulse generation is enabled corresponding to the PRML by detecting an edge signal level, and an error pulse is generated when the level exceeds a threshold. At the same time, trial writing that corresponds to the difference in the jitter of the 2Tw mark and a mark of 3Tw or more is enabled by providing multiple error pulse thresholds.
摘要翻译： 光盘装置具有与PRML系统相对应的高度准确的试写功能，并且可以处理2Tw标记的不良抖动，以实现在DVD和Blu-ray光盘中实现其记录/再现的光盘。 光盘由驱动器。 在再现信号被A / D转换之后，通过检测边缘信号电平，使能对应于PRML的误差脉冲产生，并且当电平超过阈值时产生错误脉冲。 同时，通过提供多个错误脉冲阈值来实现对应于2Tw标记的抖动和3Tw以上的标记的差异的试写。
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公开(公告)号：US07599267B2
公开(公告)日：2009-10-06
申请号：US11503998
申请日：2006-08-15
IPC分类号： G11B15/52
CPC分类号： G11B7/1267 , G11B2007/0013
摘要： An objective of the present invention is to enhance reliability of recorded data by preventing deterioration of OPC (Optimum Power Calibration) accuracy due to an influence of inter-layer interference in an optical disk device capable of writing in a multilayer optical disk. Aiming at the objective, a relationship between asymmetry and a signal modulation depth, which are measured by use of a standard driver is referred, and thereby an offset caused by a device, a disk, a writing state of another layer and the like is compensated. Thus, OPC is executed.
摘要翻译： 本发明的目的是通过防止由于能够写入多层光盘的光盘装置中的层间干扰的影响而导致的OPC（最佳功率校准）精度的劣化来提高记录数据的可靠性。 针对该目的，参考通过使用标准驱动器测量的不对称性和信号调制深度之间的关系，从而补偿由设备，盘，另一层的写入状态等引起的偏移 。 因此，执行OPC。
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公开(公告)号：US20090136219A1
公开(公告)日：2009-05-28
申请号：US12356813
申请日：2009-01-21
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10222 , G11B20/10425 , H04L7/0004
摘要： An information read device enabling obtaining of a data pattern recorded on an information recording medium as a readout signal, includes an analog to digital converter for converting the readout signal to a digital signal for a predetermined clock, a phase locked loop circuit that supplies the clock used in the analog to digital converter, a first FIR filter for equalizing the digital-converted digital signal under a first equalization condition, a Viterbi decoder to decode outputs of the FIR filter into binary data, wherein the phase locked loop circuit enables detection of a cycle slip of the phase locked loop circuit, and a detector which detects the cycle slip of the phase locked loop circuit. The FIR filter returns tap coefficients of the FIR filter, and the Vitabi decoder returns a target level of a decode operation to an initial value when an out-breaking of the cycle slip occurs.
摘要翻译： 一种能够获得记录在信息记录介质上的数据模式作为读出信号的信息读取装置，包括用于将读出信号转换为预定时钟的数字信号的模数转换器，提供时钟的锁相环电路 用于模数转换器，第一FIR滤波器，用于在第一均衡条件下均衡数字转换的数字信号;维特比解码器，用于将FIR滤波器的输出解码为二进制数据，其中锁相环电路能够检测 锁相环电路的周期滑移，以及检测锁相环电路的周期滑移的检测器。 FIR滤波器返回FIR滤波器的抽头系数，并且当发生周期滑移破裂时，Vitabi解码器将解码操作的目标电平返回到初始值。
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80.发明申请公开(公告)号：US20090080311A1
公开(公告)日：2009-03-26
申请号：US12102909
申请日：2008-04-15
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/005 , G11B7/1267 , G11B7/24
摘要： In a super-resolution optical disk for the purpose of achieving an increase in the density of recording data by reproducing a recording mark smaller than optical resolution, the optimum reproduction power needs to be determined since the quality of a super-resolution reproduced signal strongly depends on the reproduction laser power. However, since the track error signal required for tracking servo also depends on the reproduction power, there is a need for a method for determining the reproduction power taking into account both the stabilization of tracking servo and a quality improvement of the reproduction signal. The reproduction power is changed under conditions with focusing servo applied but without application of tracking servo. Thereby, a cross track signal is detected to identify a reproduction power region that leads to quality improvement of both a reproduction signal and a track error signal.
摘要翻译： 在超分辨率光盘中，为了通过再现小于光学分辨率的记录标记来实现记录数据的浓度的增加，需要确定最佳再现功率，因为超分辨率再现信号的质量强烈地依赖于 对再现激光功率。 然而，由于跟踪伺服所需的轨道误差信号也取决于再现功率，因此需要考虑到跟踪伺服的稳定性和再现信号的质量改善两者来确定再现功率的方法。 再现功率在聚焦伺服应用的条件下改变，但不应用跟踪伺服。 因此，检测交叉轨道信号以识别导致再现信号和轨道误差信号两者的质量改进的再现功率区域。
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