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公开(公告)号：US07864638B2
公开(公告)日：2011-01-04
申请号：US11575312
申请日：2005-10-20
IPC分类号： G11B7/00
CPC分类号： G11B7/0948 , G11B7/0941 , G11B2007/0013
摘要： An optical disk apparatus according to the present invention is capable of reading data from an optical disk 102 which has a plurality of information recording layers, including a first information recording layer whose distance from a disk surface is relatively small and a second information recording layer whose distance from the disk surface is relatively large. This optical disk apparatus includes: a focus control section 117 for causing a converging point of the light beam to be positioned on an arbitrary information recording layer of the optical disk 102; a tracking control section 118 for causing the converging point of the light beam to be positioned on a predetermined track of the information recording layer; and a gain switching section 108 capable of changing gain characteristics of at least one of the focus control section 117 and the tracking control section 118. The gain switching section 108 prescribes a gain crossover frequency when reading data from the first information recording layer to be a value which is lower than a gain crossover frequency when reading data from the second information recording layer.
摘要翻译： 根据本发明的光盘装置能够从具有多个信息记录层的光盘102读取数据，该多个信息记录层包括与盘表面的距离相对较小的第一信息记录层和第二信息记录层， 距磁盘表面的距离比较大。 该光盘装置包括：聚焦控制部117，用于使光束的会聚点位于光盘102的任意信息记录层上; 跟踪控制部分118，用于使光束的会聚点定位在信息记录层的预定轨道上; 以及能够改变焦点控制部分117和跟踪控制部分118中的至少一个的增益特性的增益切换部分108.增益切换部分108规定从第一信息记录层读取数据时的增益交叉频率为 该值在从第二信息记录层读取数据时低于增益交叉频率。
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公开(公告)号：US20070253305A1
公开(公告)日：2007-11-01
申请号：US11575312
申请日：2005-10-20
IPC分类号： G11B7/09
CPC分类号： G11B7/0948 , G11B7/0941 , G11B2007/0013
摘要： An optical disk apparatus according to the present invention is capable of reading data from an optical disk 102 which has a plurality of information recording layers, including a first information recording layer whose distance from a disk surface is relatively small and a second information recording layer whose distance from the disk surface is relatively large. This optical disk apparatus includes: a focus control section 117 for causing a converging point of the light beam to be positioned on an arbitrary information recording layer of the optical disk 102; a tracking control section 118 for causing the converging point of the light beam to be positioned on a predetermined track of the information recording layer; and a gain switching section 108 capable of changing gain characteristics of at least one of the focus control section 117 and the tracking control section 118. The gain switching section 108 prescribes a gain crossover frequency when reading data from the first information recording layer to be a value which is lower than a gain crossover frequency when reading data from the second information recording layer.
摘要翻译： 根据本发明的光盘装置能够从具有多个信息记录层的光盘102读取数据，该多个信息记录层包括与盘表面的距离相对较小的第一信息记录层和第二信息记录层， 距磁盘表面的距离比较大。 该光盘装置包括：聚焦控制部117，用于使光束的会聚点位于光盘102的任意信息记录层上; 跟踪控制部分118，用于使光束的会聚点定位在信息记录层的预定轨道上; 以及能够改变焦点控制部分117和跟踪控制部分118中的至少一个的增益特性的增益切换部分108.增益切换部分108规定从第一信息记录层读取数据时的增益交叉频率为 该值在从第二信息记录层读取数据时低于增益交叉频率。
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公开(公告)号：US08072852B2
公开(公告)日：2011-12-06
申请号：US12090540
申请日：2006-11-21
IPC分类号： G11B7/00
CPC分类号： G11B19/125 , G11B7/0045 , G11B7/0946 , G11B7/0948 , G11B19/045 , G11B2007/0006
摘要： An optical disc drive according to the present invention can write data on both a write-once disc and a rewritable disc. The drive includes: a disc recognizing section 110 for recognizing the type of a given optical disc as a write-once disc or a rewritable disc; and track skipping detection signal generating section, which outputs track skipping detection signal when a first condition on tracking error is satisfied if the given optical disc, on which data is being written, has turned out to be a write-once disc. On the other hand, if the given optical disc has turned out to be a rewritable disc, the track skipping detection signal generating section outputs track skipping detection signal when a second condition on tracking error, which is different from the first condition, is satisfied. A control section stops writing the data in response to the track skipping detection signal while the data is being written.
摘要翻译： 根据本发明的光盘驱动器可以在一次写入盘和可重写盘上写入数据。 驱动器包括：用于将给定光盘的类型识别为一次写入盘或可重写盘的盘识别部分110; 以及轨道跳过检测信号生成部，其中当正在写入数据的给定光盘已被证明是一次写入盘时，当满足跟踪误差的第一条件时，其输出轨道跳过检测信号。 另一方面，如果给出的光盘已经被证明是可重写盘，则当满足与第一条件不同的跟踪误差的第二条件时，轨道跳过检测信号产生部分输出轨道跳过检测信号。 当数据被写入时，控制部分响应于轨道跳过检测信号停止写入数据。
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公开(公告)号：US20090122669A1
公开(公告)日：2009-05-14
申请号：US12090540
申请日：2006-11-21
IPC分类号： G11B20/10
CPC分类号： G11B19/125 , G11B7/0045 , G11B7/0946 , G11B7/0948 , G11B19/045 , G11B2007/0006
摘要： An optical disc drive according to the present invention can write data on both a write-once disc and a rewritable disc. The drive includes: a disc recognizing section 110 for recognizing the type of a given optical disc as a write-once disc or a rewritable disc; and track skipping detection signal generating section, which outputs track skipping detection signal when a first condition on tracking error is satisfied if the given optical disc, on which data is being written, has turned out to be a write-once disc. On the other hand, if the given optical disc has turned out to be a rewritable disc, the track skipping detection signal generating section outputs track skipping detection signal when a second condition on tracking error, which is different from the first condition, is satisfied. A control section stops writing the data in response to the track skipping detection signal while the data is being written.
摘要翻译： 根据本发明的光盘驱动器可以在一次写入盘和可重写盘上写入数据。 驱动器包括：用于将给定光盘的类型识别为一次写入盘或可重写盘的盘识别部分110; 以及轨道跳过检测信号生成部，其中当正在写入数据的给定光盘已被证明是一次写入盘时，当满足跟踪误差的第一条件时，其输出轨道跳过检测信号。 另一方面，如果给出的光盘已经被证明是可重写盘，则当满足与第一条件不同的跟踪误差的第二条件时，轨道跳过检测信号产生部分输出轨道跳过检测信号。 当数据被写入时，控制部分响应于轨道跳过检测信号停止写入数据。
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公开(公告)号：US07660209B2
公开(公告)日：2010-02-09
申请号：US11271054
申请日：2005-11-11
IPC分类号： G11B7/00
CPC分类号： G11B7/08517 , G11B7/00718
摘要： An optical disk drive is designed to read and/or write data from/on a spiral string of tracks where land and groove tracks are alternated. The drive includes: a light source for radiating a light beam; a lens for converging the light beam; a mechanism for moving the lens; a photodetector for generating an electrical signal based on at least a part of the light beam reflected from the optical disk; and a control section for controlling the light source and the mechanism responsive to the electrical signal. While performing a seek operation by having the lens moved by the mechanism such that a target track, from/on which the data should start being read or written, is irradiated with the light beam, the control section tries to get a PLL locked by irradiating another track, which precedes the target track by at least one, with the light beam.
摘要翻译： 光盘驱动器被设计用于读取和/或写入数据，其中脊线和凹槽轨迹交替的螺旋弦轨迹上。 驱动器包括：用于照射光束的光源; 用于会聚光束的透镜; 用于移动透镜的机构; 光电检测器，用于基于从光盘反射的光束的至少一部分产生电信号; 以及控制部分，用于根据电信号控制光源和机构。 当通过机构移动透镜使得从数据开始被读取或写入的目标轨迹被光束照射来执行寻道操作时，控制部分试图通过照射来锁定PLL 另一个轨道，其目标轨道至少有一个与光束。
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公开(公告)号：US20060114795A1
公开(公告)日：2006-06-01
申请号：US11271054
申请日：2005-11-11
IPC分类号： G11B7/00
CPC分类号： G11B7/08517 , G11B7/00718
摘要： An optical disk drive is designed to read and/or write data from/on a spiral string of tracks where land and groove tracks are alternated. The drive includes: a light source for radiating a light beam; a lens for converging the light beam; a mechanism for moving the lens; a photodetector for generating an electrical signal based on at least a part of the light beam reflected from the optical disk; and a control section for controlling the light source and the mechanism responsive to the electrical signal. While performing a seek operation by having the lens moved by the mechanism such that a target track, from/on which the data should start being read or written, is irradiated with the light beam, the control section tries to get a PLL locked by irradiating another track, which precedes the target track by at least one, with the light beam.
摘要翻译： 光盘驱动器被设计用于读取和/或写入数据，其中脊线和凹槽轨迹交替的螺旋弦轨迹上。 驱动器包括：用于照射光束的光源; 用于会聚光束的透镜; 用于移动透镜的机构; 光电检测器，用于基于从光盘反射的光束的至少一部分产生电信号; 以及控制部分，用于根据电信号控制光源和机构。 当通过机构移动透镜使得从数据开始被读取或写入的目标轨迹被光束照射来执行寻道操作时，控制部分试图通过照射来锁定PLL 另一个轨道，其目标轨道至少有一个与光束。
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7.发明授权Information processing device, access device, recording medium, information processing method, and information processing program 有权信息处理装置，存取装置，记录介质，信息处理方法和信息处理程序公开(公告)号：US07936653B2
公开(公告)日：2011-05-03
申请号：US12163583
申请日：2008-06-27
IPC分类号： G11B7/00
CPC分类号： G11B7/00736 , G11B7/004 , G11B7/005 , G11B7/0053 , G11B19/12
摘要： An information processing device is a device for processing specific information recorded to a recording medium, and has a characteristic identification unit and a processing unit. The characteristic identification unit identifies the reflection characteristic of the recording medium. The processing unit processes the specific information recorded to the recording medium according to the identified reflection characteristic. The reflection characteristic is either a first characteristic such that the reflectance of light reflected by a recorded region of the recording medium (referred to as first reflectance) is greater than the reflectance of light reflected by an unrecorded region of the recording medium (referred to as second reflectance), or a second characteristic such that the first reflectance is less than the second reflectance.
摘要翻译： 信息处理装置是用于处理记录在记录媒体上的特定信息的装置，具有特征识别部和处理部。 特征识别单元识别记录介质的反射特性。 处理单元根据所识别的反射特性来处理记录在记录介质上的特定信息。 反射特性是由记录介质的记录区域反射的光的反射率（被称为第一反射率）大于由记录介质的未记录区域反射的光的反射率的第一特性（称为第一反射率 第二反射率）或第二特性使得第一反射率小于第二反射率。
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8.发明授权Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus 有权记录介质，记录方法，再现方法，记录装置和再现装置公开(公告)号：US07518970B2
公开(公告)日：2009-04-14
申请号：US12114305
申请日：2008-05-02
申请人： Toyoji Gushima , Shigeru Furumiya , Takashi Ishida , Hiromichi Ishibashi , Hironori Deguchi , Atsushi Nakamura , Junichi Minamino , Makoto Usui , Takeshi Nakajima
发明人： Toyoji Gushima , Shigeru Furumiya , Takashi Ishida , Hiromichi Ishibashi , Hironori Deguchi , Atsushi Nakamura , Junichi Minamino , Makoto Usui , Takeshi Nakajima
IPC分类号： G11B7/004
CPC分类号： G11B20/1833 , G11B7/00454 , G11B7/00456 , G11B7/00736 , G11B7/00745 , G11B20/10 , G11B20/10203 , G11B20/1217 , G11B20/1403 , G11B20/1426 , G11B27/3027 , G11B2007/0006 , G11B2020/1222 , G11B2020/1225 , G11B2020/1232 , G11B2020/1277 , G11B2020/1287 , G11B2220/20 , G11B2220/216 , G11B2220/2537 , G11B2220/2562
摘要： A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded.
摘要翻译： 一种包括记录区域的记录介质，所述记录区域包括第一区域和第二区域，所述第一区域包括帧区域，所述帧区域包括第二同步码序列和至少一部分数据到的区域 并且第二区域包括要记录第三同步码序列和第四同步码序列的区域。
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公开(公告)号：US07362664B2
公开(公告)日：2008-04-22
申请号：US11265688
申请日：2005-11-02
IPC分类号： G11B7/00
CPC分类号： G11B27/3027 , G11B7/0053 , G11B7/007 , G11B7/00745 , G11B7/24082 , G11B20/10009 , G11B20/10222 , G11B20/1217 , G11B20/1403 , G11B27/19 , G11B27/24 , G11B2020/1221 , G11B2020/1239 , G11B2020/1265 , G11B2020/1267 , G11B2020/1268 , G11B2020/1274 , G11B2020/1287 , G11B2020/1292 , G11B2020/1298 , G11B2220/20 , G11B2220/2537
摘要： An optical disk medium includes a track groove thereon. On the optical disk medium, information is recorded along the track groove on a block unit basis. The block unit has a predetermined length. The block unit having the predetermined length includes a number of sub-blocks that are arranged along the groove. A sub-block mark is provided within each of the sub-blocks and used to identify the sub-block.
摘要翻译： 光盘介质包括其上的轨道槽。 在光盘介质上，以块单位为基础沿轨道槽记录信息。 块单元具有预定长度。 具有预定长度的块单元包括沿着凹槽布置的多个子块。 在每个子块内提供子块标记，并用于识别子块。
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10.发明授权公开(公告)号：US07315497B2
公开(公告)日：2008-01-01
申请号：US10300853
申请日：2002-11-21
IPC分类号： G11B7/00
CPC分类号： G11B20/1403 , G11B7/0053 , G11B7/24082
摘要： At the time of heterodyne detection, information is reproduced constantly in the optimum condition. A method reproduces information recording medium including a reference wobble block which has a first wobble pattern representing a first information content; and an information wobble block which follows the reference wobble block and which has at least one of the first wobble pattern and a second wobble pattern representing a second information and different from the first wobble pattern. The method includes reading the reference wobble block and the information wobble block; comparing a wobble pattern read from the information wobble block with the first wobble pattern of the reference wobble block; judging that information recorded in the information wobble block is the first information or the second information according to the wobble pattern read from the information wobble block; and outputting one of the first and the second information based on the judging result.
摘要翻译： 在外差检测时，在最佳条件下不断地再现信息。 一种方法再现包括具有表示第一信息内容的第一摆动模式的参考摆动块的信息记录介质; 以及跟随参考摆动块并且具有表示第二信息并且不同于第一摆动图案的第一摆动图案和第二摆动图案中的至少一个的信息摆动块。 该方法包括读取参考摆动块和信息摆动块; 将从信息摆动块读取的摆动模式与参考摆动块的第一摆动模式进行比较; 判断记录在信息摆动块中的信息是根据从信息摆动块读取的摆动模式的第一信息或第二信息; 并基于判断结果输出第一和第二信息之一。
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