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1. 发明授权

US08335140B2 Optical disc drive for recording or reproducing data on a multilayer optical disc with a layer identification region 失效
标题翻译：用于在具有层识别区域的多层光盘上记录或再现数据的光盘驱动器
公开(公告)号：US08335140B2
公开(公告)日：2012-12-18
申请号：US13179620
申请日：2011-07-11
申请人： Manabu Shiozawa , Takakiyo Yasukawa
发明人： Manabu Shiozawa , Takakiyo Yasukawa
IPC分类号： G11B15/04
CPC分类号： G11B7/00736 , G11B7/24038 , G11B2007/0013
摘要： The present invention provides a multilayer optical disc and an optical disc drive which can identify recording layers without performing tracking servo control or changing the structure of the disc. In a multilayer optical disc 100, the recording layer includes a layer identification region 101 having a recording pattern for layer identification, the layer identification region 101 including a layer specific region 102 having a specific pattern and a common region 103 having a common pattern different from the specific pattern, the layer specific region 102 being provided at a different radial position in each of the recording layers. The optical disc drive detects the layer specific region 102 having the specific pattern from the layer identification region 101 of the multilayer optical disc 100, and identifies the current layer based on the radial position of the layer specific region.
摘要翻译：本发明提供一种多层光盘和光盘驱动器，其可以在不执行跟踪伺服控制或改变盘的结构的情况下识别记录层。在多层光盘100中，记录层包括具有用于层识别的记录图案的层识别区域101，层识别区域101包括具有特定图案的层特定区域102和具有不同于具体图案，层特定区域102设置在每个记录层中的不同径向位置处。光盘驱动器从多层光盘100的层识别区域101检测具有特定图案的层特定区域102，并且基于层特定区域的径向位置识别当前层。

2. 发明申请

US20120033535A1 OPTICAL DISC AND OPTICAL DISC DRIVE 失效
标题翻译：光盘和光盘驱动器
公开(公告)号：US20120033535A1
公开(公告)日：2012-02-09
申请号：US13179620
申请日：2011-07-11
申请人： Manabu SHIOZAWA , Takakiyo Yasukawa
发明人： Manabu SHIOZAWA , Takakiyo Yasukawa
IPC分类号： G11B7/007 , G11B7/26
CPC分类号： G11B7/00736 , G11B7/24038 , G11B2007/0013
摘要： The present invention provides a multilayer optical disc and an optical disc drive which can identify recording layers without performing tracking servo control or changing the structure of the disc. In a multilayer optical disc 100, the recording layer includes a layer identification region 101 having a recording pattern for layer identification, the layer identification region 101 including a layer specific region 102 having a specific pattern and a common region 103 having a common pattern different from the specific pattern, the layer specific region 102 being provided at a different radial position in each of the recording layers. The optical disc drive detects the layer specific region 102 having the specific pattern from the layer identification region 101 of the multilayer optical disc 100, and identifies the current layer based on the radial position of the layer specific region.
摘要翻译：本发明提供一种多层光盘和光盘驱动器，其可以在不执行跟踪伺服控制或改变盘的结构的情况下识别记录层。在多层光盘100中，记录层包括具有用于层识别的记录图案的层识别区域101，层识别区域101包括具有特定图案的层特定区域102和具有不同于具体图案，层特定区域102设置在每个记录层中的不同径向位置处。光盘驱动器从多层光盘100的层识别区域101检测具有特定图案的层特定区域102，并且基于层特定区域的径向位置识别当前层。

3. 发明申请

US20050058033A1 Optical disk writing method and write power control method thereof 审中-公开
标题翻译：光盘写入方法及其写功率控制方法
公开(公告)号：US20050058033A1
公开(公告)日：2005-03-17
申请号：US10777083
申请日：2004-02-13
申请人： Junichi Ishii , Takakiyo Yasukawa , Yutaka Narita , Masashi Imai
发明人： Junichi Ishii , Takakiyo Yasukawa , Yutaka Narita , Masashi Imai
IPC分类号： G11B5/09 , G11B7/00 , G11B7/0045 , G11B7/007 , G11B7/085 , G11B7/125 , G11B7/126 , G11B19/28
CPC分类号： G11B7/126 , G11B7/00456 , G11B7/0079
摘要： A specific write power control method used for an optical disk drive is provided. This method relates to how to measure the writing quality and how to set write power for the next zone while settling the linear velocity so that each zone of an optical disk is provided with different linear velocity. At the time of zone switching, writing performed by the head facing an optical disk is interrupted. The head is moved to seek to a given return point in a written area. At the return point, the head is moved toward the next zone, and also a motor for rotating the optical disk is accelerated so that the linear velocity of the motor becomes the linear velocity of the next zone. During the acceleration, the written area is read to measure the writing quality. From the measured writing quality, write power for the next zone is set. At a point of time when the motor reaches the linear velocity of the next zone and the head reaches the next zone, restarting the writing to the optical disk is restarted.
摘要翻译：提供了用于光盘驱动器的特定写入功率控制方法。该方法涉及如何测量写入质量以及如何设置下一个区域的写入功率，同时稳定线速度，使光盘的每个区域都具有不同的线速度。在区域切换时，头部朝向光盘进行的写入被中断。头部被移动到在书面区域寻求给定的返回点。在返回点，头移动到下一个区域，并且加速旋转光盘的马达，使马达的线速度成为下一个区域的线速度。在加速期间，读取书写区域以测量书写质量。从测量的写入质量，设置下一个区域的写入功率。在电机达到下一个区域的线速度并且磁头到达下一个区域的时间点上，重新启动对光盘的写入。

4. 发明授权

US09286929B2 Multilayered optical disk and its recording method 有权
标题翻译：多层光盘及其记录方法
公开(公告)号：US09286929B2
公开(公告)日：2016-03-15
申请号：US12570106
申请日：2009-09-30
申请人： Harukazu Miyamoto , Koichi Watanabe , Yutaka Nagai , Koichiro Nishimura , Takakiyo Yasukawa
发明人： Harukazu Miyamoto , Koichi Watanabe , Yutaka Nagai , Koichiro Nishimura , Takakiyo Yasukawa
IPC分类号： G11B7/007 , G11B7/1267 , G11B7/24038 , G11B7/00
CPC分类号： G11B7/00736 , G11B7/1267 , G11B7/24038 , G11B2007/0013
摘要： A method for performing recording on a multilayered optical disk which has three or more recordable or rewritable information recording layers with a first recording layer and a second recording layer located nearer to a light incident surface than the first recording layer, and which respectively has a first test area configured by a plurality of segments in the first recording layer and in the second recording layer, wherein a predetermined radial distance L is defined beforehand. When an arbitrary segment in the second test area is test-recorded, a segment in the first test area, the radial distance of which from the recorded test area in the second test area is within the range of the predetermined radial distance L, is set as a segment in which test recording is not performed.
摘要翻译：一种用于在具有三个或更多个可记录或可重写信息记录层的多层光盘上执行记录的方法，所述信息记录层具有位于比第一记录层更靠近光入射表面的第一记录层和第二记录层，并且分别具有第一测试区域由第一记录层和第二记录层中的多个段构成，其中预先定义预定的径向距离L. 当对第二测试区域中的任意段进行测试记录时，将第一测试区域中与第二测试区域中记录的测试区域的径向距离设置在预定的径向距离L的范围内的段被设置作为不执行测试记录的段。

5. 发明授权

US08004957B2 Recording and reproducing method and recording and reproducing apparatus 有权
标题翻译：记录和再现方法以及记录和再现装置
公开(公告)号：US08004957B2
公开(公告)日：2011-08-23
申请号：US11751753
申请日：2007-05-22
申请人： Takakiyo Yasukawa , Koichi Watanabe , Koichiro Nishimura
发明人： Takakiyo Yasukawa , Koichi Watanabe , Koichiro Nishimura
IPC分类号： G11B7/00 , G11B20/10 , G11B5/09
CPC分类号： G11B7/1267 , G11B7/00456 , G11B7/0062
摘要： A recording and reproducing method has a recording pulse generating step of generating a recording pulse to set timing of a beam emitted from a laser according to data to be recorded on an information recording medium; a laser power control step of controlling a laser drive current according to a recording laser power; a beam detecting step of detecting a power of the beam emitted from the laser; a signal detecting step of detecting a signal level of a reproduction signal read out from the information recording medium; a step of binarizing the reproduction signal to generate a binarized signal; a step of generating a data signal synchronized with a reference clock signal with use of the binarized signal; and a step of detecting a shift in time interval between the binarized signal and the reference clock signal and feeding the shift back to the recording pulse.
摘要翻译：记录和再现方法具有记录脉冲产生步骤，根据要记录在信息记录介质上的数据产生记录脉冲，以设定从激光发射的光束的定时; 激光功率控制步骤，根据记录激光功率来控制激光驱动电流; 光束检测步骤，用于检测从激光器发射的光束的功率; 信号检测步骤，检测从信息记录介质读出的再现信号的信号电平; 将再现信号二值化以生成二值化信号的步骤; 使用二值化信号产生与参考时钟信号同步的数据信号的步骤; 以及检测二值化信号和参考时钟信号之间的时间间隔的偏移并将移位返回到记录脉冲的步骤。

6. 发明申请

US20110051589A1 Optical Disc, Optical Disc Reproducing Apparatus, Optical Disc Apparatus, Reproducing Method and Recording Method 失效
标题翻译：光盘，光盘再现装置，光盘装置，再生方法及记录方法
公开(公告)号：US20110051589A1
公开(公告)日：2011-03-03
申请号：US12769477
申请日：2010-04-28
申请人： Takeyoshi Kataoka , Yoshinori Ishikawa , Yutaka Nagai , Kenji Akahoshi , Takakiyo Yasukawa
发明人： Takeyoshi Kataoka , Yoshinori Ishikawa , Yutaka Nagai , Kenji Akahoshi , Takakiyo Yasukawa
IPC分类号： G11B7/135 , G11B7/24 , G11B7/00
CPC分类号： G11B7/00736 , G11B7/0053 , G11B7/24038 , G11B2007/0006
摘要： Where a hybrid disc has different types of media, the light spot moves among recording layers of the different media, after loading the disc into an optical disc apparatus, there is a problem that information on a media type of each recording layer should be recorded in DI etc. of the optical disc. Detailed information on the hybrid disc is stored in DI, by changing a disc layer type identifier or a disc structure in DI such as BCA or PIC on the optical disc.
摘要翻译：在混合盘具有不同类型的介质的情况下，在将盘装载到光盘装置中之后，光斑在不同介质的记录层之间移动，存在每个记录层的介质类型的信息应记录在 DI等。通过在光盘上改变诸如BCA或PIC之类的DI中的光盘层类型标识符或光盘结构，将混合光盘的详细信息存储在DI中。

7. 发明授权

US07885160B2 Method of recording information on and reproducing information from optical disk and apparatus for the same 有权
标题翻译：在光盘上记录信息和从光盘再现信息的方法及其装置
公开(公告)号：US07885160B2
公开(公告)日：2011-02-08
申请号：US12178828
申请日：2008-07-24
申请人： Takakiyo Yasukawa , Koichi Watanabe , Naohito Ikeda , Toshio Shoji , Yasuhiro Wada
发明人： Takakiyo Yasukawa , Koichi Watanabe , Naohito Ikeda , Toshio Shoji , Yasuhiro Wada
IPC分类号： G11B7/00
CPC分类号： G11B7/0062 , G11B20/10009 , G11B20/10222 , G11B20/1403 , G11B2220/218 , G11B2220/2541
摘要： There is provided an information recording and reproducing method and an apparatus for the same capable of optimizing the shift adjustment of a recording pulse recorded in an optical disk even at the time of recording information on the optical disk at a high speed. The shift adjustment value of the recording pulse optimized at a low speed recording on an optical disk is multiplied by a constant value to be taken as the optimum shift conditions of the recording pulse at the high speed recording.
摘要翻译：提供了一种信息记录和再现方法及其装置，即使在高速记录光盘上的信息时，也可以优化记录在光盘中的记录脉冲的移位调整。在光盘上以低速记录优化的记录脉冲的移位调整值乘以一个恒定值作为高速记录时记录脉冲的最佳移位条件。

8. 发明授权

US08284648B2 Optical disk recording apparatus 失效
标题翻译：光盘记录装置
公开(公告)号：US08284648B2
公开(公告)日：2012-10-09
申请号：US11940392
申请日：2007-11-15
申请人： Koichiro Nishimura , Junya Iizuka , Manabu Katsuki , Takakiyo Yasukawa
发明人： Koichiro Nishimura , Junya Iizuka , Manabu Katsuki , Takakiyo Yasukawa
IPC分类号： G11B27/30 , G11B3/00
CPC分类号： G11B20/10009 , G11B7/00458 , G11B20/10055 , G11B20/18
摘要： An optical disk apparatus is provided that has a signal processing circuit for equalizing a signal so as to achieve predetermined equalization, in which interference between codes is permitted, by means of an adaptive equalization circuit or the like, and for performing binarization by means of a maximum likelihood decoding circuit in which interference is performed as a rule, and thereby achieves stabilized signal reproduction in a narrow-band transmission. When evaluating the quality of the recorded signal through the use of the recording parameter learning and the reproduction system such as recorded signal verification, the optical disk recording apparatus is capable of highly precisely evaluating the quality of the recorded signal by fixing a circuit characteristic after suspending the optimization operation of the adaptive equalization circuit or the like for optimizing the characteristic by the reproduced signal. An optical disk recording method is also provided.
摘要翻译：提供一种具有信号处理电路的光盘装置，该信号处理电路用于对信号进行均衡，以便通过自适应均衡电路等实现允许代码之间的干扰的预定均衡，并且借助于通常执行干扰的最大似然解码电路，从而在窄带传输中实现稳定的信号再现。通过使用记录参数学习和诸如记录信号验证的再现系统来评估记录信号的质量时，光盘记录装置能够通过固定暂停后的电路特性来高精度地评估记录信号的质量用于通过再现信号优化特性的自适应均衡电路等的优化操作。还提供了一种光盘记录方法。

9. 发明申请

US20110032806A1 OPTICAL DISC AND OPTICAL DISC APPARATUS 失效
标题翻译：光盘和光盘设备
公开(公告)号：US20110032806A1
公开(公告)日：2011-02-10
申请号：US12788899
申请日：2010-05-27
申请人： Shinji FUJITA , Takakiyo Yasukawa , Kenji Akahoshi , Koichiro Nishimura
发明人： Shinji FUJITA , Takakiyo Yasukawa , Kenji Akahoshi , Koichiro Nishimura
IPC分类号： G11B20/10
CPC分类号： G11B20/1252 , G11B7/0037 , G11B7/00456 , G11B7/00736 , G11B2007/0013 , G11B2020/1265 , G11B2220/2541
摘要： An optical disc recording method for recording disc information to be used in recording/reproducing control on an optical disc, comprises the following steps of: providing a first disc information unit and a second disc information unit, each having a predetermined data size, in a predetermined management information area of the optical disc; the disc information includes write strategy information; separating the write strategy information into first write strategy information and second write strategy information; recording the first disc information into the first disc information unit; and recording the second disc information into the second disc information unit.
摘要翻译：一种用于记录用于在光盘上进行记录/再现控制的盘信息的光盘记录方法，包括以下步骤：在第一盘信息单元和第二盘信息单元中，每个具有预定的数据大小光盘的预定管理信息区域; 盘信息包括写策略信息; 将写入策略信息分离成第一写入策略信息和第二写入策略信息; 将第一盘信息记录到第一盘信息单元中; 并将第二盘信息记录到第二盘信息单元中。

10. 发明申请

US20080137520A1 Recording and Reproducing Method and Recording and Reproducing Apparatus 有权
标题翻译：记录和再现方法和记录和再现装置
公开(公告)号：US20080137520A1
公开(公告)日：2008-06-12
申请号：US11751753
申请日：2007-05-22
申请人： Takakiyo Yasukawa , Koichi Watanabe , Koichiro Nishimura
发明人： Takakiyo Yasukawa , Koichi Watanabe , Koichiro Nishimura
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/00456 , G11B7/0062
摘要： A recording and reproducing method has a recording pulse generating step of generating a recording pulse to set timing of a beam emitted from a laser according to data to be recorded on an information recording medium; a laser power control step of controlling a laser drive current according to a recording laser power; a beam detecting step of detecting a power of the beam emitted from the laser; a signal detecting step of detecting a signal level of a reproduction signal read out from the information recording medium; a step of binarizing the reproduction signal to generate a binarized signal; a step of generating a data signal synchronized with a reference clock signal with use of the binarized signal; and a step of detecting a shift in time interval between the binarized signal and the reference clock signal and feeding the shift back to the recording pulse.
摘要翻译：记录和再现方法具有记录脉冲产生步骤，根据要记录在信息记录介质上的数据产生记录脉冲，以设定从激光发射的光束的定时; 激光功率控制步骤，根据记录激光功率来控制激光驱动电流; 光束检测步骤，用于检测从激光器发射的光束的功率; 信号检测步骤，检测从信息记录介质读出的再现信号的信号电平; 将再现信号二值化以生成二值化信号的步骤; 使用二值化信号产生与参考时钟信号同步的数据信号的步骤; 以及检测二值化信号和参考时钟信号之间的时间间隔的偏移并将移位返回到记录脉冲的步骤。

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