公开(公告)号：US08233362B2

公开(公告)日：2012-07-31

申请号：US12719912

申请日：2010-03-09

申请人： Kiyotaka Ito ,  Mamoru Shoji ,  Yasumori Hino ,  Atsushi Nakamura ,  Naoyasu Miyagawa ,  Motoshi Ito

发明人： Kiyotaka Ito ,  Mamoru Shoji ,  Yasumori Hino ,  Atsushi Nakamura ,  Naoyasu Miyagawa ,  Motoshi Ito

IPC分类号： G11B7/00

CPC分类号： G11B7/00736 ,  G11B7/00456

摘要： The present invention provides a measure for getting read/write control information stored within a space of a predetermined size in a format that ensures compatibility with media of a lower order or an older generation even if the size of the read/write control information increases significantly as the storage densities of information storage media rise in the near future. On an information storage medium, a data sequence is writable as a combination of marks and spaces. The medium has at least one information storage layer, which has an information storage area to store information and a control information area for use to perform a read/write operation on the at least one information storage layer. The control information area stores at least one set of control information, which includes a first kind of write pulse information including information to be used as a reference value and a second kind of write pulse information including information to be used as an offset value. The size of the offset value is at least a half as large as that of the reference value.

摘要翻译： 本发明提供一种用于获得存储在预定大小的空间内的读/写控制信息的措施，即使读/写控制信息的大小显着增加，也可以确保与较低级别或较老版本的媒体兼容的格式 随着信息存储媒体的存储密度在不久的将来上升。 在信息存储介质上，作为标记和空格的组合可写入数据序列。 介质具有至少一个信息存储层，其具有用于存储信息的信息存储区域和用于对至少一个信息存储层执行读/写操作的控制信息区域。 控制信息区域存储至少一组控制信息，该组控制信息包括包括要用作参考值的信息的第一种写入脉冲信息和包括要用作偏移值的信息的第二种写入脉冲信息。 偏移值的大小至少是参考值的一半。

公开(公告)号：US08824263B2

公开(公告)日：2014-09-02

申请号：US13881837

申请日：2012-03-13

申请人： Tomoyasu Takaoka ,  Atsushi Nakamura ,  Tetsuya Akiyama ,  Naoyasu Miyagawa

发明人： Tomoyasu Takaoka ,  Atsushi Nakamura ,  Tetsuya Akiyama ,  Naoyasu Miyagawa

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/1267 ,  G11B7/1263

CPC分类号： G11B7/00456 ,  G11B7/0062 ,  G11B7/1263 ,  G11B7/1267 ,  G11B7/24038

摘要： When the power of the write pulse is taken as the peak power and the power of the bottom pulse is taken as the bottom power, the power setting device (114) sets the power of each pulse in the recording pulse train such that the peak power PwN of the Nth information layer which is closest to the light entry surface of the optical recording medium (11), the bottom power PbN of the Nth information layer, the peak power PwM of the Mth information layer (where M is an integer such that N>M≧1), and the bottom power PbM of the Mth information layer satisfy the following formula: PbN/PwN>PbM/PwM.

摘要翻译： 当将写入脉冲的功率作为峰值功率并且将底部脉冲的功率作为底部功率时，功率设定装置（114）将记录脉冲串中的每个脉冲的功率设置为使得峰值功率 最靠近光记录介质（11）的光入射表面的第N个信息层的PwN，第N个信息层的底部功率PbN，第M个信息层的峰值功率PwM（其中M是整数，使得 N>M≥1），第M个信息层的底部功率PbM满足下式：PbN / PwN> PbM / PwM。

公开(公告)号：US20120057448A1

公开(公告)日：2012-03-08

申请号：US13318722

申请日：2011-03-07

申请人： Kiyotaka Ito ,  Yasumori Hino ,  Naoyasu Miyagawa ,  Atsushi Nakamura

发明人： Kiyotaka Ito ,  Yasumori Hino ,  Naoyasu Miyagawa ,  Atsushi Nakamura

IPC分类号： G11B7/125 ,  G11B7/139

CPC分类号： G11B7/00456 ,  G11B7/0062

摘要： A writing method according to the present invention is a method for writing a data sequence as a combination of marks and spaces on an information recording medium by condensing a laser beam through a lens. The writing method is characterized in that a cooling pulse for recording a mark that is even shorter than the limit of optical resolution of the laser beam and another cooling pulse for recording a mark that is still longer than the limit of the optical resolution of the laser beam are applied under mutually different conditions.

摘要翻译： 根据本发明的写入方法是通过将激光束通过透镜聚焦来将数据序列作为标记和间隔的组合写入信息记录介质的方法。 写入方法的特征在于，用于记录比激光束的光学分辨率的极限更短的标记的冷却脉冲和用于记录比激光的光学分辨率的极限更长的标记的另一个冷却脉冲 光束在相互不同的条件下施加。

公开(公告)号：US08089844B2

公开(公告)日：2012-01-03

申请号：US12915307

申请日：2010-10-29

申请人： Atsushi Nakamura ,  Naoyasu Miyagawa

发明人： Atsushi Nakamura ,  Naoyasu Miyagawa

IPC分类号： G11B7/00

CPC分类号： G11B7/126 ,  G11B7/00456 ,  G11B7/0062

摘要： There is provided an optical recording method for directing a recording pulse train to an optical disc medium to form marks thereon and for recording information as information about the edge positions of said marks and the spaces between marks, the recording pulse train having been created by modulating laser light into plural power levels. The method includes: coding to-be-recorded data into coded data consisting of the combination of marks and spaces; classifying said marks within said coded data on the basis of the mark length and the preceding or succeeding space lengths of the marks; shifting the position of the second pulse edge counted from the end portion of the recording pulse train for forming said marks, depending on the result of said classification, to adjust said recording pulse train; and directing said recording pulse train to the optical disc medium to form said marks thereon.

公开(公告)号：US20070165506A1

公开(公告)日：2007-07-19

申请号：US10583320

申请日：2005-01-06

申请人： Atsushi Nakamura ,  Naoyasu Miyagawa

发明人： Atsushi Nakamura ,  Naoyasu Miyagawa

IPC分类号： G11B7/0045

CPC分类号： G11B7/126 ,  G11B7/00456 ,  G11B7/0062

摘要： There is provided an optical recording method for directing a recording pulse train to an optical disc medium to form marks thereon and for recording information as information about the edge positions of said marks and the spaces between marks, the recording pulse train having been created by modulating laser light into plural power levels. The method includes: coding to-be-recorded data into coded data consisting of the combination of marks and spaces; classifying said marks within said coded data on the basis of the mark length and the preceding or succeeding space lengths of the marks; shifting the position of the second pulse edge counted from the end portion of the recording pulse train for forming said marks, depending on the result of said classification, to adjust said recording pulse train; and directing said recording pulse train to the optical disc medium to form said marks thereon.

摘要翻译： 提供了一种用于将记录脉冲序列引导到光盘介质以在其上形成标记并用于记录信息作为关于所述标记的边缘位置和标记之间的空间的信息的光学记录方法，记录脉冲串是通过调制产生的 激光成多个功率级。 该方法包括：将要记录的数据编码成由标记和空格的组合组成的编码数据; 基于标记长度和标记的前一或后续间隔长度，对所述编码数据内的所述标记进行分类; 根据所述分类的结果，从用于形成所述标记的记录脉冲序列的端部计数的第二脉冲边缘的位置移位，以调整所述记录脉冲串; 并将所述记录脉冲序列引导到光盘介质上以在其上形成所述标记。

公开(公告)号：US08400890B2

公开(公告)日：2013-03-19

申请号：US12920193

申请日：2010-03-01

申请人： Atsushi Nakamura ,  Naoyasu Miyagawa ,  Kiyotaka Ito ,  Mamoru Shoji ,  Yasumori Hino

发明人： Atsushi Nakamura ,  Naoyasu Miyagawa ,  Kiyotaka Ito ,  Mamoru Shoji ,  Yasumori Hino

IPC分类号： G11B20/00

CPC分类号： G11B7/00736 ,  G11B7/00454 ,  G11B7/00456 ,  G11B7/261 ,  G11B7/263 ,  G11B20/10009 ,  G11B20/10453 ,  G11B20/1217 ,  G11B2007/0006 ,  G11B2020/1279 ,  G11B2020/1298 ,  G11B2220/2541

摘要： An optical information storage medium according to the present invention has at least one information storage layer. The optical information storage medium has a management area that stores at least one unit containing control information about the optical information storage medium. The control information includes a format number, which provides information about at least a write strategy type and a write pre-compensation type, and a write strategy parameter, which provides information about the magnitude of shift in an edge position, or variation in the pulse width, of a write pulse train to form a recording mark. And the value of the format number changes according to a combination of the write strategy type and the write pre-compensation type.

摘要翻译： 根据本发明的光学信息存储介质具有至少一个信息存储层。 光信息存储介质具有存储包含关于光信息存储介质的控制信息的至少一个单元的管理区域。 控制信息包括提供关于至少写入策略类型和写入预补偿类型的信息的格式编号，以及写入策略参数，其提供关于边缘位置的移位幅度或脉冲变化的信息 写入脉冲串的宽度以形成记录标记。 并且格式编号的值根据写策略类型和写预补偿类型的组合而改变。

公开(公告)号：US20110096643A1

公开(公告)日：2011-04-28

申请号：US12999456

申请日：2009-10-19

申请人： Atsushi Nakamura ,  Naoyasu Miyagawa ,  Shigeru Furumiya ,  Yasumori Hino ,  Motoshi Ito ,  Mamoru Shoji ,  Yoshihisa Takahashi

发明人： Atsushi Nakamura ,  Naoyasu Miyagawa ,  Shigeru Furumiya ,  Yasumori Hino ,  Motoshi Ito ,  Mamoru Shoji ,  Yoshihisa Takahashi

IPC分类号： G11B7/24 ,  G11B3/70

CPC分类号： G11B7/00736 ,  G11B7/0045 ,  G11B7/1267 ,  G11B7/24038 ,  G11B7/24082

摘要： An information recording medium according to the present invention includes three or more information recording layers. Each of the plurality of information recording layers includes a test recording area usable for adjusting a recording condition. One of the plurality of information recording layers includes a reproduction-only management data area in which management data usable for managing the information recording medium is pre-recorded. One information recording layer includes a recordable management data area in which management data usable for managing the information recording medium is newly writable. Each of the other two or more information recording layers among the plurality of information recording layers includes a test recording area at a radial position overlapping the radial position of a part of the reproduction-only management data area. In the one recording layer including the recordable management data area, the recordable management data area is provided at two positions, i.e., one on the inner side and the other on the outer side to the test recording area.

摘要翻译： 根据本发明的信息记录介质包括三个或更多个信息记录层。 多个信息记录层中的每一个包括可用于调节记录条件的测试记录区域。 多个信息记录层中的一个包括可再现管理数据区，其中可用于管理信息记录介质的管理数据被预先记录。 一个信息记录层包括可记录管理数据区，其中可用于管理信息记录介质的管理数据是可重写的。 多个信息记录层中的其他两个以上的信息记录层中的每一个都包括与仅再现管理数据区域的一部分的径向位置重叠的径向位置的测试记录区域。 在包括可记录管理数据区的一个记录层中，可记录管理数据区被设置在测试记录区上的两个位置，即内侧的一个，外侧的一个。

公开(公告)号：US20100226218A1

公开(公告)日：2010-09-09

申请号：US12303832

申请日：2007-05-31

申请人： Atsushi Nakamura ,  Naoyasu Miyagawa

发明人： Atsushi Nakamura ,  Naoyasu Miyagawa

IPC分类号： G11B20/10

CPC分类号： G11B7/005 ,  G11B7/1267 ,  G11B19/04 ,  G11B19/28

摘要： A reading devices suppresses deterioration of the recording marks caused by increasing the output laser power to compensate for a drop in the S/N ratio when reading at a high speed information recorded to a high density recording medium. To read information recorded to an optical data recording medium that is written and read using a laser beam output from a semiconductor laser, the reading method modulates a high frequency current on the drive current of the semiconductor laser to output the laser beam, and changes the light modulation rate according to the selected linear velocity used for reading. The light modulation rate is the ratio Pp/Pave between the peak power Pp and the average read power Pave of the light intensity of the high frequency modulated laser beam.

摘要翻译： 读取装置抑制由于增加输出激光功率而导致的记录标记的劣化，以补偿在记录到高密度记录介质的高速信息下读取时的S / N比的下降。 为了读取记录到使用从半导体激光器输出的激光束进行写入和读取的光学数据记录介质的信息，该读取方法调制高频电流对半导体激光器的驱动电流的输出，并输出激光束 根据用于读取的所选线速度的光调制率。 光调制率是峰值功率Pp与高频调制激光束的光强度的平均读取功率Pave之比Pp / Pave。

公开(公告)号：US08295139B2

公开(公告)日：2012-10-23

申请号：US13094220

申请日：2011-04-26

申请人： Atsushi Nakamura ,  Naoyasu Miyagawa

发明人： Atsushi Nakamura ,  Naoyasu Miyagawa

IPC分类号： G11B7/00

CPC分类号： G11B7/126 ,  G11B7/00456 ,  G11B7/0062

摘要： There is provided an optical recording method for directing a recording pulse train to an optical disc medium to form marks thereon and for recording information as information about the edge positions of said marks and the spaces between marks, the recording pulse train having been created by modulating laser light into plural power levels. The method includes: coding to-be-recorded data into coded data consisting of the combination of marks and spaces; classifying said marks within said coded data on the basis of the mark length and the preceding or succeeding space lengths of the marks; shifting the position of the second pulse edge counted from the end portion of the recording pulse train for forming said marks, depending on the result of said classification, to adjust said recording pulse train; and directing said recording pulse train to the optical disc medium to form said marks thereon.

摘要翻译： 提供了一种用于将记录脉冲序列引导到光盘介质以在其上形成标记的光学记录方法，并且用于记录关于所述标记的边缘位置和标记之间的空间的信息，记录脉冲串是通过调制产生的 激光成多个功率级。 该方法包括：将要记录的数据编码成由标记和空格的组合组成的编码数据; 基于标记长度和标记的前一或后续间隔长度，对所述编码数据内的所述标记进行分类; 根据所述分类的结果，从用于形成所述标记的记录脉冲序列的端部计数的第二脉冲边缘的位置移位，以调整所述记录脉冲串; 并将所述记录脉冲序列引导到光盘介质上以在其上形成所述标记。

公开(公告)号：US08233367B2

公开(公告)日：2012-07-31

申请号：US10583320

申请日：2005-01-06

申请人： Atsushi Nakamura ,  Naoyasu Miyagawa

发明人： Atsushi Nakamura ,  Naoyasu Miyagawa

IPC分类号： G11B7/00

CPC分类号： G11B7/126 ,  G11B7/00456 ,  G11B7/0062

摘要： There is provided an optical recording method for directing a recording pulse train to an optical disc medium to form marks thereon and for recording information as information about the edge positions of said marks and the spaces between marks, the recording pulse train having been created by modulating laser light into plural power levels. The method includes: coding to-be-recorded data into coded data consisting of the combination of marks and spaces; classifying said marks within said coded data on the basis of the mark length and the preceding or succeeding space lengths of the marks; shifting the position of the second pulse edge counted from the end portion of the recording pulse train for forming said marks, depending on the result of said classification, to adjust said recording pulse train; and directing said recording pulse train to the optical disc medium to form said marks thereon.