专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2011187160A Information recording device, information recording method, and recording medium 有权
标题翻译：信息记录装置，信息记录方法和记录介质
公开(公告)号：JP2011187160A
公开(公告)日：2011-09-22
申请号：JP2011141387
申请日：2011-06-27
申请人： Hitachi Ltd , Hitachi-Lg Data Storage Inc , 株式会社日立エルジーデータストレージ , 株式会社日立製作所
发明人： NISHIMURA KOICHIRO , KUREBAYASHI MASAAKI , MINEMURA HIROYUKI
IPC分类号： G11B20/10 , G11B20/18
摘要： PROBLEM TO BE SOLVED: To prevent degradation in recording compatibility and playback compatibility due to a difference in recording quality when recording quality is different with respect to a threshold of switch processing due to a difference in a reproducing means, and to secure compatibility of a device especially between drives of PRML correspondence/non-correspondence, and between drives having different recording speeds/reading speeds.
SOLUTION: This information recording device for recording information in a recording medium provided with a first recording area for recording information and a second recording area being a spare area for the first recording area is provided with a recording part for writing information in the recording area of the recording medium, and a control part for controlling the recording part, and a reference value to be used in the case of changing a recording area for writing the information therein from the first recording area to the second recording area, is made different between when processed by a first signal processing method and when processed by a second signal processing method.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了防止由于再现装置的差异而导致记录质量相对于切换处理的阈值而不同的记录质量差异导致的记录兼容性和回放兼容性的降低，并且确保兼容性特别是在PRML对应/非对应的驱动器之间以及具有不同记录速度/读取速度的驱动器之间的装置。解决方案：用于在设置有用于记录信息的第一记录区域和作为第一记录区域的备用区域的第二记录区域的记录介质中记录信息的信息记录装置设置有用于在记录介质的记录区域和用于控制记录部分的控制部分，以及在将从第一记录区域向其中写入信息的记录区域改变为第二记录区域时使用的基准值当通过第一信号处理方法处理时和由第二信号处理方法处理时不同。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2010003328A Optical information recording method, optical information reproduction method and optical disk device 有权
标题翻译：光信息记录方法，光信息再现方法和光盘设备
公开(公告)号：JP2010003328A
公开(公告)日：2010-01-07
申请号：JP2008158624
申请日：2008-06-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NISHIMURA KOICHIRO , NAKAMURA YUSUKE
IPC分类号： G11B7/005 , G11B20/10
CPC分类号： G11B20/10009 , G11B7/00456 , G11B7/1267 , G11B20/10046 , G11B20/10055 , G11B20/10194 , G11B20/10212 , G11B20/10222 , G11B20/10481
摘要： PROBLEM TO BE SOLVED: To achieve stabilized learning of parameters for recording and evaluation of a recording quality even when it is difficult to evaluate the recording quality directly from a reproduced signal of recorded data because of restriction in signal transmission properties and high density in recorded information in an optical disk.
SOLUTION: When a phase shift of the reproduced signal relative to a channel clock is to be evaluated, based on a difference between an output from a waveform equalization circuit to equalize an input reproduced signal to a predetermined target equalization characteristic and the target equalization characteristic, 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 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 achieve, with high precision, optimal value learning of various parameters for the recording, reproduction, and servo by use of the phase shift as an index.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了实现用于记录和评价记录质量的参数的稳定学习，即使由于信号传输性能和高密度的限制而难以直接从记录数据的再现信号评估记录质量记录在光盘中的信息。解决方案：当再现信号相对于通道时钟的相移将被评估时，基于来自波形均衡电路的输出之间的差以将输入的再现信号均衡到预定的目标均衡特性，并且目标均衡特性，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的输出的均衡波形可以保存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现波形的相移。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。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2008192258A Multilayer recording type optical disk, recording method for multilayer recording type optical disk, and recording device for multilayer recording type optical disk 有权
标题翻译：多层记录型光盘，多层记录型光盘的记录方法以及多层记录型光盘的记录装置
公开(公告)号：JP2008192258A
公开(公告)日：2008-08-21
申请号：JP2007027491
申请日：2007-02-07
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAGAI YUTAKA , NISHIMURA KOICHIRO
IPC分类号： G11B7/007 , G11B7/0045 , G11B7/125
摘要： PROBLEM TO BE SOLVED: To provide a multilayer optical disk and a recording method capable of performing random access and performing recording at the optimum recording power when it is expected that a recorded part and an unrecorded part are generated at random in an upper layer with respect to a recording layer. SOLUTION: Each layer includes a data recording area and a test write area divided into a plurality of small areas. The recording is performed in the small area of the test write area so that a combination of recorded and unrecorded is allowed in advance for each of the other layers with respect to the small area subjected to OPC of the layer where the OPC is to be performed. The OPC is performed for each small area in which the combination of recorded and unrecorded of each of the other layers is different. On the other hand, the data recording area is divided for each of the plurality of small areas, and information on the combination of recorded and unrecorded of each layer is recorded in a disk for each area. When user data are recorded, the result of OPC with conditions in which the state of recorded and unrecorded of each layer matches therewith is regarded as the optimum power according to the information. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种多层光盘和能够执行随机存取并且当期望在上一个阶段随机生成记录部分和未记录部分时以最佳记录功率进行记录的记录方法相对于记录层。解决方案：每层包括分成多个小区域的数据记录区域和测试写入区域。在测试写入区域的小区域中执行记录，使得针对要执行OPC的层的OPC的小区域预先为每个其他层预先记录和未记录的组合。对于其中每个其他层的记录和未记录的组合不同的每个小区域执行OPC。另一方面，对于多个小区域中的每个区域划分数据记录区域，并且关于每层的记录和未记录的组合的信息被记录在每个区域的盘中。当记录用户数据时，根据该信息，将每个层记录和未记录的状态与其匹配的条件的OPC的结果视为最佳功率。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2007220152A Method and device for recording optical information 有权
标题翻译：记录光信息的方法和装置
公开(公告)号：JP2007220152A
公开(公告)日：2007-08-30
申请号：JP2006035907
申请日：2006-02-14
申请人： Hitachi Ltd , Hitachi-Lg Data Storage Inc , 株式会社日立エルジーデータストレージ , 株式会社日立製作所
发明人： NISHIMURA KOICHIRO , YAMADA ATSUSHI , KAWASHIMA TORU , TODA TAKESHI
IPC分类号： G11B7/0045 , G11B7/125
CPC分类号： G11B7/1267
摘要： PROBLEM TO BE SOLVED: To provide a means for stabilizing a trial writing speed at a high linear velocity when deviation causes servo shaking at the high linear velocity in an optical disk which needs trial writing at the high linear velocity. SOLUTION: A recording system for calculating a recording parameter from a recording parameter learning result in two or more areas of different linear velocities in a recording medium by a predetermined calculation method when information is recorded in an optional address position decides an optimal recording parameter from a reproduced waveform jitter value of trial writing time in the area of a slow linear velocity, and an optimal recording parameter based on information obtained from a reproduced waveform amplitude value of the trial writing in the area of a high linear velocity. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于在高线速度下稳定试写速度的装置，当偏移导致需要以高线速度进行试写的光盘中的高线速度的伺服振动时。解决方案：当将信息记录在可选地址位置时，通过预定的计算方法，通过记录介质中的两个或更多个不同线速度的两个或多个区域计算记录参数的记录系统决定最佳记录参考从慢速线性速度区域的试用写入时间的再生波形抖动值，以及基于从高线速度区域中的试写的再现波形振幅值获得的信息的最佳记录参数。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2007149275A Information reproducing method 审中-公开
标题翻译：信息再现方法
公开(公告)号：JP2007149275A
公开(公告)日：2007-06-14
申请号：JP2005344880
申请日：2005-11-30
申请人： Hitachi Ltd , Hitachi-Lg Data Storage Inc , 株式会社日立エルジーデータストレージ , 株式会社日立製作所
发明人： NISHIMURA KOICHIRO , TODA TAKESHI , HARAI MITSURU , SUZUKI KOICHI , KAWASHIMA TORU
IPC分类号： G11B7/005
CPC分类号： G11B7/005 , G11B7/1263
摘要： PROBLEM TO BE SOLVED: To prevent reduction of medium reproduction light durability due to substantial high power reproduction, and erasure and destruction of already recorded data in access operation in reproduction with constant linear velocity and recovery operation from rotation stop due to a standby state, when linear velocity in reproduction is made slow in high speed recording of an optical disk being re-writable or able to be DRAW.
SOLUTION: An optical information reproducing method and an apparatus are constituted so that the recording medium having an information track of a concentric circle type or a spiral type is controlled so as to keep constant linear velocity, thereby it is irradiated with a laser beam while being rotated, so that information recorded in the recording medium is reproduced by the return light. In this case, when a reproduction radius position is moved to a second radius position being different from the present position, the light spot is moved to the second radius position after laser power is changed to second laser power different from the present laser power.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了防止由于实质上的高功率再现而导致的中等再现光耐久性的降低，并且以恒定的线速度和由于待机的旋转停止的恢复操作的再现中的存取操作中的已经记录的数据的擦除和破坏状态，当可再写入或能够进行绘制的光盘的高速记录中，再现中的线速度变慢。解决方案：光学信息再现方法和装置被构造成使得具有同心圆型或螺旋型信息轨迹的记录介质被控制以保持恒定的线速度，从而用激光照射同时旋转，从而通过返回光再现记录在记录介质中的信息。在这种情况下，当再现半径位置移动到与当前位置不同的第二半径位置时，在将激光功率改变为与当前激光功率不同的第二激光功率之后，光斑移动到第二半径位置。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2007149182A Recording control method of optical disk recording apparatus, and optical disk recording apparatus 审中-公开
标题翻译：光盘记录装置的记录控制方法和光盘记录装置
公开(公告)号：JP2007149182A
公开(公告)日：2007-06-14
申请号：JP2005339811
申请日：2005-11-25
申请人： Hitachi Ltd , Hitachi-Lg Data Storage Inc , 株式会社日立エルジーデータストレージ , 株式会社日立製作所
发明人： NISHIMURA KOICHIRO , TODA TAKESHI , YAMADA ATSUSHI , KAWASHIMA TORU
IPC分类号： G11B7/0045 , G11B20/10
CPC分类号： G11B7/00456 , G11B7/1267
摘要： PROBLEM TO BE SOLVED: To reduce an interruption time up to recording restart by introducing quickly recording parameters corresponding to rotation speed after change even when rotation speed of a disk is changed during recording of a CAV system.
SOLUTION: When change is performed from the CAV system to a CLV system, a processing procedure of a microprocessor 6 when recording parameters are reconstructed is as follows.(1) Recording is interrupted.(2) Linear velocity Cx of a bent point at which recording linear velocity becomes constant is calculated.(3) A recording parameter R in linear velocity Cx is calculated by linear interpolation based on recording parameters P and Q corrected test writing, all recording parameters of an outer periphery side from a radial position 203 at which linear velocity becomes Cx are replaced to recording parameter R.(4) Recording is restarted by using the recording parameter R as recording conditions.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使当在CAV系统的记录期间改变盘的转速时，通过引入与改变后的转速相对应的快速记录参数来减少直到记录重新启动的中断时间。解决方案：当从CAV系统到CLV系统进行改变时，重建记录参数时微处理器6的处理过程如下：（1）中断记录;（2）弯曲的线速度Cx 计算记录线速度恒定的点（3）线速度Cx中的记录参数R是通过基于记录参数P和Q校正测试写入的线性插值计算的，外周侧的径向位置的所有记录参数线性速度变为Cx的203被替换为记录参数R.（4）通过使用记录参数R作为记录条件重新开始记录。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2005100482A Information recording medium, its control method, and information recording and reproducing method 有权
标题翻译：信息记录介质，其控制方法和信息记录和再现方法
公开(公告)号：JP2005100482A
公开(公告)日：2005-04-14
申请号：JP2003329295
申请日：2003-09-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIYAMOTO JIICHI , NISHIMURA KOICHIRO
IPC分类号： G11B7/24 , G11B7/00 , G11B7/004 , G11B7/0045 , G11B7/005 , G11B7/007 , G11B19/26 , G11B19/28
CPC分类号： G11B7/00736 , G11B19/26
摘要： PROBLEM TO BE SOLVED: To provide a high speed recording medium that can reliably maintain compatibility and can be manufactured at a low cost. SOLUTION: The maximum linear velocity and the minimum linear velocity are individually set up for the inner area and the outer area of a disk, and they are recorded in control data. The recording device is controlled by selecting one of CLV/CAV controls or by CLV/CAV mixed controls. Since recording and reproducing are always made on a high speed recording medium under a condition intended by a manufacturer, the quality of the recorded signals is stabilized and the compatibility is improved between a plurality of drives. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种可以可靠地保持相容性并且可以以低成本制造的高速记录介质。
解决方案：对于磁盘的内部区域和外部区域，分别设置最大线速度和最小线速度，并将其记录在控制数据中。通过选择一个CLV / CAV控制或CLV / CAV混合控制来控制记录装置。由于在制造商要求的条件下始终在高速记录介质上进行记录和再现，所以记录信号的质量稳定，并且在多个驱动器之间提高了兼容性。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2012212501A Information recording medium, address generation and detection method, and reproducing and recording apparatuses 审中-公开
标题翻译：信息记录介质，地址生成和检测方法以及再现和记录装置
公开(公告)号：JP2012212501A
公开(公告)日：2012-11-01
申请号：JP2012121490
申请日：2012-05-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUKUSHIMA AKIO , IKEDA MASAKAZU , HIROSE KOICHI , NISHIMURA KOICHIRO
IPC分类号： G11B20/12 , G11B20/10
摘要： PROBLEM TO BE SOLVED: To obtain an extension address without changing the number of bits of an address embedded in wobbles.SOLUTION: Address information is embedded by applying encoding processing to a part or all of a wobble address. When reproducing the address information, original address information is obtained by applying decoding processing and restoring the embedded information.
摘要翻译：要解决的问题：获取扩展地址而不改变嵌入在摆动中的地址的位数。解决方案：通过对摆动地址的一部分或全部应用编码处理来嵌入地址信息。当再现地址信息时，通过应用解码处理和恢复嵌入信息来获得原始地址信息。版权所有（C）2013，JPO＆INPIT

9. 发明专利

JP2012084227A Recording condition adjustment method and optical disk device 有权
标题翻译：记录条件调整方法和光盘设备
公开(公告)号：JP2012084227A
公开(公告)日：2012-04-26
申请号：JP2012020446
申请日：2012-02-02
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAMURA YUSUKE , NISHIMURA KOICHIRO , MINEMURA HIROYUKI , KUROKAWA TAKAHIRO
IPC分类号： G11B20/18 , G11B7/0045 , G11B20/10
摘要： PROBLEM TO BE SOLVED: To provide a highly efficient and reliable reproduction signal evaluation method and an optical disk drive using the method since in a large capacity optical disk system with a constraint length of 5 or longer, the circuit size increases exponentially in accordance with an increase in the constraint length of a PRML system when determining the matching of a binarized bitstream with a predetermined evaluation bitstream and calculating the Euclidean distances to evaluate the quality of a reproduction signal.SOLUTION: A continuous number of 2T included in a prescribed evaluation bitstream is assumed to be i, and the evaluation bitstream is considered with regard to a bitstream (5+2i) long. Then, a determination process to determine whether the prescribed evaluation bitstream is included in a binarized bitstream is performed. A target signal corresponding to the evaluation bitstream and an error vector acquired from the target signal generated from the binarized bitstream are prepared in advance, and they are selected based on determination processing results. At the same time, an equalization error vector acquired from the target signal generated from the binarized bitstream and a reproduction signal is calculated and the inner product of the equalization error vector and the selected error vector is calculated. Thereby, the circuit scale required for evaluation of the reproduction signal can be reduced.
摘要翻译：解决的问题：为了提供一种高效可靠的再现信号评估方法和使用该方法的光盘驱动器，因为在约束长度为5或更大的大容量光盘系统中，电路大小以指数方式增加当确定二进制比特流与预定评估比特流的匹配并且计算欧氏距离以评估再现信号的质量时，根据PRML系统的约束长度的增加。假设包含在规定评估比特流中的2T的连续数目为i，并且考虑比特流（5 + 2i）长的评估比特流。然后，执行用于确定规定评估比特流是否包括在二进制比特流中的确定处理。预先准备对应于评估比特流的目标信号和从二值化比特流产生的目标信号中获取的误差矢量，并根据确定处理结果选择它们。同时，计算从二值比特流产生的目标信号中获得的均衡误差矢量和再现信号，并计算均衡误差矢量和所选择的误差矢量的内积。因此，可以减少用于评估再现信号所需的电路规模。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2011175734A Multilayer recording type optical disk, and recording method and recording device for the same 审中-公开
标题翻译：多层记录型光盘，记录方法及记录装置
公开(公告)号：JP2011175734A
公开(公告)日：2011-09-08
申请号：JP2011106810
申请日：2011-05-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAGAI YUTAKA , NISHIMURA KOICHIRO
IPC分类号： G11B7/007 , G11B7/0045 , G11B7/125
摘要： PROBLEM TO BE SOLVED: To allow random access in a multilayer optical disk and a recording method, and to record data by optimal recording power when it is expected that recorded and unrecorded places randomly occur in an upper layer of a recording layer. SOLUTION: Each layer includes a data recording area and a trial writing area divided into a plurality of small areas. In the small area of the trial writing area, data is recorded beforehand to allow combination of recording and unrecording in other each layer with respect to the small area for executing OPC of an OPC-executing layer, and OPC is executed for each small area where a combination of recording and unrecording of other each layer is different. The data recording area is divided for each of the plurality of small areas, and information on a combination of recording and unrecording states of each layer is recorded in a disk for each area. During recording of user data, according to this information, a result of OPC under a condition where recording and unrecording states of each layer match is set as optimal power. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了允许在多层光盘中的随机访问和记录方法，并且当期望记录和未记录的位置随机出现在记录层的上层时，通过最佳记录功率来记录数据。解决方案：每个层包括分成多个小区域的数据记录区域和试写区域。在试写区域的小区域中，预先记录数据，以便相对于用于执行OPC执行层的OPC的小区域在其他每一层中组合记录和不记录，并且对于每个小区域执行OPC，其他每个层的记录和不记录的组合是不同的。对于多个小区域中的每一个划分数据记录区域，并且关于每层的记录和未记录状态的组合的信息被记录在每个区域的盘中。在记录用户数据期间，根据该信息，在每个层的记录和未记录状态匹配的条件下，OPC的结果被设置为最佳功率。版权所有（C）2011，JPO＆INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式