公开(公告)号：US20130308434A1

公开(公告)日：2013-11-21

申请号：US13981150

申请日：2012-07-20

申请人： Emi Kitano ,  Harumitsu Miyashita ,  Ryoji Hirose

发明人： Emi Kitano ,  Harumitsu Miyashita ,  Ryoji Hirose

IPC分类号： G11B20/18

CPC分类号： G11B20/1879 ,  G11B7/004 ,  G11B7/00458 ,  G11B7/085 ,  G11B7/12 ,  G11B7/14

摘要： This optical read/write apparatus has first and second optical heads 2a, 2b and includes location control sections 4a, 4b which make the relative arrangement of the first and second optical heads 2a, 2b variable according to either the environmental temperature or from one medium to another. The first optical head 2a performs a write operation to record a mark on an optical storage medium 1, and the second optical head 2b reads the information that has been written by scanning the recorded mark. The apparatus further includes a nonvolatile memory which saves the relative arrangement of the first and second optical heads 2a and 2b either on an environmental temperature basis or on a medium by medium basis.

摘要翻译： 这种光学读/写装置具有第一和第二光头2a，2b，并且包括使第一和第二光头2a，2b相对布置的位置控制部分4a，4b根据环境温度或从一个介质到 另一个。 第一光学头2a执行写入操作以在光学存储介质1上记录标记，并且第二光学头2b读取通过扫描记录标记而写入的信息。 该装置还包括非易失性存储器，其在第一和第二光学头2a和2b的相对布置方面基于环境温度或基于介质的介质。

公开(公告)号：US08848500B2

公开(公告)日：2014-09-30

申请号：US13981150

申请日：2012-07-20

申请人： Emi Kitano ,  Harumitsu Miyashita ,  Ryoji Hirose

发明人： Emi Kitano ,  Harumitsu Miyashita ,  Ryoji Hirose

IPC分类号： G11B20/18 ,  G11B7/12 ,  G11B7/004 ,  G11B7/085

CPC分类号： G11B20/1879 ,  G11B7/004 ,  G11B7/00458 ,  G11B7/085 ,  G11B7/12 ,  G11B7/14

摘要： This optical read/write apparatus has first and second optical heads 2a, 2b and includes location control sections 4a, 4b which make the relative arrangement of the first and second optical heads 2a, 2b variable according to either the environmental temperature or from one medium to another. The first optical head 2a performs a write operation to record a mark on an optical storage medium 1, and the second optical head 2b reads the information that has been written by scanning the recorded mark. The apparatus further includes a nonvolatile memory which saves the relative arrangement of the first and second optical heads 2a and 2b either on an environmental temperature basis or on a medium by medium basis.

摘要翻译： 这种光学读/写装置具有第一和第二光头2a，2b，并且包括使第一和第二光头2a，2b相对布置的位置控制部分4a，4b根据环境温度或从一个介质到 另一个。 第一光学头2a执行写入操作以在光学存储介质1上记录标记，并且第二光学头2b读取通过扫描记录标记而写入的信息。 该装置还包括非易失性存储器，其在第一和第二光学头2a和2b的相对布置方面基于环境温度或基于介质的介质。

公开(公告)号：US08817583B2

公开(公告)日：2014-08-26

申请号：US13880359

申请日：2012-08-31

申请人： Ryoji Hirose ,  Harumitsu Miyashita

发明人： Ryoji Hirose ,  Harumitsu Miyashita

IPC分类号： G11B27/36 ,  G11B7/0045

CPC分类号： G11B7/00458

摘要： An optical read/write apparatus according to an embodiment includes: an optical head unit (2a, 2b) which focuses a write light beam and a read light beam onto an optical storage medium (100) and which generates a signal based on the light beam that has been reflected from the optical storage medium; and a control section (6) which controls the optical head unit (2a, 2b) so that the optical head unit records a mark on the optical storage medium by irradiating the optical storage medium with the write light beam and reads the recorded mark on the optical storage medium with the read light beam. After having started to record the mark on the optical storage medium by irradiating the optical storage medium with the write light beam and before forming the recorded mark completely, the optical head unit (2a, 2b) reads the recorded mark on the optical storage medium with the read light beam.

摘要翻译： 根据实施例的光学读/写装置包括：将写入光束和读取光束聚焦到光学存储介质（100）上并且基于光束产生信号的光学头单元（2a，2b） 已从光学存储介质反射出来; 以及控制部分（6），其控制光学头单元（2a，2b），使得光学头单元通过用光学光束照射光学存储介质来在光学存储介质上记录标记，并读取记录标记 具有读取光束的光学存储介质。 在通过用写入光束照射光学存储介质并且在完全形成记录标记之前开始在光学存储介质上记录标记之后，光学头单元（2a，2b）在光学存储介质上读取记录的标记， 读光束。

公开(公告)号：US20140003211A1

公开(公告)日：2014-01-02

申请号：US13880359

申请日：2012-08-31

申请人： Ryoji Hirose ,  Harumitsu Miyashita

发明人： Ryoji Hirose ,  Harumitsu Miyashita

IPC分类号： G11B7/0045

CPC分类号： G11B7/00458

摘要： An optical read/write apparatus according to an embodiment includes: an optical head unit (2a, 2b) which focuses a write light beam and a read light beam onto an optical storage medium (100) and which generates a signal based on the light beam that has been reflected from the optical storage medium; and a control section (6) which controls the optical head unit (2a, 2b) so that the optical head unit records a mark on the optical storage medium by irradiating the optical storage medium with the write light beam and reads the recorded mark on the optical storage medium with the read light beam. After having started to record the mark on the optical storage medium by irradiating the optical storage medium with the write light beam and before forming the recorded mark completely, the optical head unit (2a, 2b) reads the recorded mark on the optical storage medium with the read light beam.

摘要翻译： 根据实施例的光学读/写装置包括：将写入光束和读取光束聚焦到光学存储介质（100）上并且基于光束产生信号的光学头单元（2a，2b） 已从光学存储介质反射出来; 以及控制部分（6），其控制光学头单元（2a，2b），使得光学头单元通过用光学光束照射光学存储介质来在光学存储介质上记录标记，并读取记录标记 具有读取光束的光学存储介质。 在通过用写入光束照射光学存储介质并且在完全形成记录标记之前开始在光学存储介质上记录标记之后，光学头单元（2a，2b）在光学存储介质上读取记录的标记， 读光束。

公开(公告)号：US08565054B2

公开(公告)日：2013-10-22

申请号：US12376544

申请日：2007-11-30

申请人： Harumitsu Miyashita ,  Yasumori Hino ,  Mamoru Shoji ,  Kiyotaka Itou

发明人： Harumitsu Miyashita ,  Yasumori Hino ,  Mamoru Shoji ,  Kiyotaka Itou

IPC分类号： G11B5/09 ,  G11B7/24 ,  G11B20/18 ,  G11B3/70 ,  G11B3/74

CPC分类号： G11B20/10009 ,  G11B20/10046 ,  G11B20/10111 ,  G11B20/10481 ,  G11B2020/122 ,  G11B2220/2541 ,  G11B2220/2562

摘要： An optical head 12 reproduces information recorded on an optical disc 11, a BCA detector 21 and a medium discriminating circuit 22 acquire waveform distortion information for specifying a waveform distortion of a reproduction signal reproduced by the optical head 12, and a variable waveform equalizer 16 changes a parameter used in a distortion reduction processing for reducing the waveform distortion of the reproduction signal based on the waveform distortion information.

摘要翻译： 光头12再现记录在光盘11上的信息，BCA检测器21和介质鉴别电路22获取用于指定由光头12再现的再现信号的波形失真的波形失真信息，并且可变波形均衡器16改变 用于基于波形失真信息减少再现信号的波形失真的失真减小处理中使用的参数。

公开(公告)号：US08254234B2

公开(公告)日：2012-08-28

申请号：US13207570

申请日：2011-08-11

申请人： Harumitsu Miyashita ,  Kohei Nakata

发明人： Harumitsu Miyashita ,  Kohei Nakata

IPC分类号： G11B7/004

CPC分类号： G11B7/013 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/1012 ,  G11B20/10296 ,  G11B20/10481 ,  G11B2220/216 ,  G11B2220/2541

摘要： A method for rating an information recording medium according to the present invention includes the steps of: receiving a digital read signal, which has been generated based on an analog read signal representing information that has been read from the information recording medium, and shaping the waveform of the digital read signal; subjecting the shaped digital read signal to maximum likelihood decoding, thereby generating a binarized signal showing a result of the maximum likelihood decoding; and calculating the quality of the digital read signal based on the shaped digital read signal and the binarized signal. If the quality of the read signal is calculated by a PRML method in which a number of zero-cross portions are included in a merging path of a minimum difference metric, the quality is calculated by using only a state transition pattern in which only one zero-cross portion is included in a merging path of a non-minimum difference metric.

摘要翻译： 根据本发明的用于对信息记录介质进行评级的方法包括以下步骤：接收基于表示从信息记录介质读取的信息的模拟读取信号产生的数字读取信号，并且对波形进行整形 的数字读取信号; 对成形数字读取信号进行最大似然解码，从而生成表示最大似然解码结果的二值化信号; 并根据成形数字读取信号和二值化信号计算数字读取信号的质量。 如果通过PRML方法计算读取信号的质量，其中在最小差值度量的合并路径中包括多个零交叉部分，则仅通过仅使用一个零的状态转换模式来计算质量 - 交叉部分被包括在非最小差值度量的合并路径中。

公开(公告)号：US20120092974A1

公开(公告)日：2012-04-19

申请号：US13378862

申请日：2011-04-12

申请人： Isao Kobayashi ,  Harumitsu Miyashita

发明人： Isao Kobayashi ,  Harumitsu Miyashita

IPC分类号： G11B7/005

CPC分类号： G11B20/10009 ,  G11B7/0062 ,  G11B7/1267 ,  G11B20/10287 ,  G11B2220/2541 ,  G11B2220/2562

摘要： According to the present invention, a first error pattern caused by a shift of a bit relating to a recording mark or a space of a shortest length and a second error pattern caused by an edge shift of the recording mark are used. For each of a plurality of error patterns, a pattern shift obtained by normalizing a difference between a square of a Euclidean distance between the error pattern and a reproduction signal and a square of a Euclidean distance between a correct pattern and the reproduction signal, using a square of a Euclidean distance between the correct pattern and the error pattern is detected. Length and phase errors are calculated by a sum of, or a difference between, a first pattern shift amount obtained by normalization performed using the first error pattern and a second pattern shift amount obtained by normalization performed using the second error pattern.

摘要翻译： 根据本发明，使用由与记录标记相关的位的移位引起的第一错误模式或由记录标记的边缘移位引起的最短长度的空间和第二错误模式。 对于多个误差图案中的每一个，通过使用以下方式归一化误差模式和再现信号之间的欧几里得距离的平方与欧氏距离的正方形之间的差异而获得的图案偏移， 检测正确模式与误差模式之间的欧氏距离的平方。 长度和相位误差通过使用第一误差图案进行的归一化所获得的第一图案偏移量和通过使用第二误差图案进行的归一化获得的第二图案偏移量之和或之差来计算。

公开(公告)号：US08000197B2

公开(公告)日：2011-08-16

申请号：US11995549

申请日：2006-07-18

申请人： Mamoru Shoji ,  Yasumori Hino ,  Harumitsu Miyashita ,  Isao Kobayashi

发明人： Mamoru Shoji ,  Yasumori Hino ,  Harumitsu Miyashita ,  Isao Kobayashi

IPC分类号： G11B7/125

CPC分类号： G11B7/1267 ,  G11B7/00456 ,  G11B7/0062

摘要： A calculation of a reliability value |Pa−Pb|−Pstd, representing represents a maximum likelihood decoding result on a portion which corresponds to a start or termination edge of a recording mark and has a high probability of error occurrence by a maximum likelihood decoding method, is performed on each combination of a predetermined mark length and a space length immediately before the mark and each combination of the mark length and a space length immediately after the mark. Based on the calculation result, a recording parameter is optimized, and recording reflecting the optimized recording parameter is performed.

摘要翻译： 代表对应于记录标记的开始或终止边缘的部分并且通过最大似然解码方法具有高错误发生概率的最大似然解码结果的可靠性值| Pa-Pb |​​ -Pstd的计算， 在标记之前的预定标记长度和间隔长度的每个组合以及标记之后的标记长度和间隔长度的每个组合的每个组合上执行。 基于计算结果，优化记录参数，并且执行反映优化记录参数的记录。

公开(公告)号：US20110122749A1

公开(公告)日：2011-05-26

申请号：US13014923

申请日：2011-01-27

申请人： Kohei Nakata ,  Naohiro Kimura ,  Harumitsu Miyashita ,  Hiroshi Ueda ,  Yoshikazu Yamamoto

发明人： Kohei Nakata ,  Naohiro Kimura ,  Harumitsu Miyashita ,  Hiroshi Ueda ,  Yoshikazu Yamamoto

IPC分类号： G11B20/00 ,  G11B7/24

CPC分类号： G11B7/00745 ,  G11B20/1217 ,  G11B27/3027 ,  G11B2020/1221 ,  G11B2020/1227 ,  G11B2020/1232 ,  G11B2020/1239 ,  G11B2020/1267 ,  G11B2020/1268 ,  G11B2020/1278 ,  G11B2020/1292 ,  G11B2220/235 ,  G11B2220/2541

摘要： An address format for appropriately controlling the recording linear density and the number of information recording layers is provided in order to increase the recording capacity of an information recording medium such as an optical disc or the like in a range in which a necessary S/N ratio can be guaranteed. An optical disc includes an information recording layer having a concentric or spiral track, and has a format for describing a track address, which is pre-recorded on the track or is to be added to data that is to be recorded on the information recording layer. The format includes layer information regarding the information recording layer and address information regarding the track address.

摘要翻译： 提供了用于适当地控制记录线密度和信息记录层数的地址格式，以便在诸如光盘等的信息记录介质的记录容量在必要的S / N比 可以保证。 光盘包括具有同心或螺旋形轨道的信息记录层，并且具有用于描述轨道地址的格式，其被预先记录在轨道上或被添加到待记录在信息记录层上的数据 。 该格式包括关于信息记录层的层信息和关于轨道地址的地址信息。

公开(公告)号：US07936653B2

公开(公告)日：2011-05-03

申请号：US12163583

申请日：2008-06-27

申请人： Harumitsu Miyashita ,  Junichi Minamino ,  Takeshi Nakajima

发明人： Harumitsu Miyashita ,  Junichi Minamino ,  Takeshi Nakajima

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。