公开(公告)号：US06621779B1

公开(公告)日：2003-09-16

申请号：US09763277

申请日：2001-05-11

申请人： Chikashi Inokuchi ,  Shigeru Furumiya ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Atsushi Miyazaki ,  Toshiya Akagi

发明人： Chikashi Inokuchi ,  Shigeru Furumiya ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Atsushi Miyazaki ,  Toshiya Akagi

IPC分类号： B11B700

CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B7/0053 ,  G11B7/0055 ,  G11B7/0062 ,  G11B7/00718 ,  G11B7/1263

摘要： A power control device for controlling a power of a light source of an optical beam directed to an optical medium. The power control device includes a reflected light detector for detecting reflected light from the optical medium when irradiated by an optical beam which is following a track; an arithmetic unit for calculating from the reflected light a transmissivity of light transmitted from a disk surface to a recording layer or an amount of directed light on the recording layer of the medium; and power control means for controlling the power of the light source for emission based on a calculation result produced by the arithmetic unit.

摘要翻译： 一种用于控制指向光学介质的光束的光源的功率的功率控制装置。 功率控制装置包括反射光检测器，用于当由跟随轨道的光束照射时检测来自光学介质的反射光; 用于从反射光计算从盘表面传输到记录层的光的透射率或介质的记录层上的定向光量的运算单元; 以及功率控制装置，用于基于由运算单元产生的计算结果来控制用于发射的光源的功率。

公开(公告)号：US6044051A

公开(公告)日：2000-03-28

申请号：US827748

申请日：1997-04-09

申请人： Naoyasu Miyagawa ,  Mamoru Shoji ,  Takashi Ishida ,  Shigeru Furumiya ,  Yuji Hisakado

发明人： Naoyasu Miyagawa ,  Mamoru Shoji ,  Takashi Ishida ,  Shigeru Furumiya ,  Yuji Hisakado

IPC分类号： G11B7/007 ,  G11B7/013 ,  G11B20/10 ,  G11B20/12 ,  G11B27/19 ,  G11B27/30 ,  G11B7/00

CPC分类号： G11B27/3027 ,  G11B20/10009 ,  G11B20/1252 ,  G11B27/19 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/013 ,  G11B2220/20

摘要： There is provided an optical information recording/reproducing device for recording, reproducing, or erasing information on an optical information recording medium including information tracks formed on a disk substrate including alternating groove tracks and land tracks each including: a header region for recording identification data representing location information in pre-pits; and a data region for recording user data, the pre-pits being grouped into blocks, the blocks wobbling alternately toward an inner periphery or an outer periphery of the disk substrate along a radius direction from a center line of each information track by a distance which is substantially 1/2 of the information track pitch. The pre-pits are provided along the radius direction at a pitch twice as large as the track pitch. The device includes: an optical system for radiating a light beam as a converged beam spot on an information track; an optical detector including two light receiving portions divided in parallel to the track direction for receiving the light beam reflected from the recording medium; a signal generator for generating a differential signal and an addition signal of output signals respectively output from the light receiving portions; a header region detection circuit for determining whether the converged beam spot is tracing the header region or the data region using the differential signal; and at least one reading circuit for reading the identification data from the differential signal and for reading information recorded in the data region from the addition signal.

摘要翻译： 提供了一种光学信息记录/再现装置，用于在包括形成在包括交替的凹槽轨道和脊迹道的盘基底上的信息轨迹的光信息记录介质上记录，再现或擦除信息，所述光盘信息记录介质包括：标题区，用于记录表示 预坑中的位置信息; 以及用于记录用户数据的数据区域，将预定凹坑分组成块，块沿着每个信息轨道的中心线沿半径方向交替地向盘基板的内周或外周摆动一距离 基本上为信号轨道间距的+ E，fra 1/2 + EE。 预制坑沿着半径方向以轨道间距的两倍大的间距设置。 该装置包括：用于在信息轨道上辐射作为会聚束斑的光束的光学系统; 光检测器，其包括与轨道方向平行分割的两个光接收部分，用于接收从记录介质反射的光束; 信号发生器，用于产生分别从光接收部分输出的差分信号和输出信号的相加信号; 标题区域检测电路，用于使用所述差分信号来确定所述会聚波束点是跟踪所述头部区域还是所述数据区域; 以及至少一个读取电路，用于从差分信号读取识别数据，并用于从加法信号读取记录在数据区中的信息。

公开(公告)号：US08509046B2

公开(公告)日：2013-08-13

申请号：US13516000

申请日：2010-12-16

申请人： Tomoyasu Takaoka ,  Shigeru Furumiya ,  Atsushi Nakamura

发明人： Tomoyasu Takaoka ,  Shigeru Furumiya ,  Atsushi Nakamura

IPC分类号： G11B7/0045

CPC分类号： G11B7/0062 ,  G11B2007/0013

摘要： A recording wavelength generator selects control parameters of a recording pulse sequence, based on combinations of mark length, a first space length of a first space immediately before the mark, and a second space length of a second space immediately after the mark. A laser drive circuit records the marks by the recording pulse sequence. The first and second space lengths are classified into m and n types, respectively. An absolute value of a difference between two predetermined control parameters from among (m×n) control parameters selected during recording on a second information layer located on an incidence side of the laser beam with respect to a predetermined first information layer from among N information layers is equal to or greater than an absolute value of a difference between two predetermined control parameters from among the (m×n) control parameters selected during recording on the first information layer.

摘要翻译： 记录波长发生器基于标记长度，标记之前的第一空间的第一空间长度和紧接在标记之后的第二空间的第二空格长度的组合来选择记录脉冲序列的控制参数。 激光驱动电路通过记录脉冲序列记录标记。 第一和第二空间长度分别分为m和n类。 从在N个信息层中相对于预定的第一信息层位于激光束的入射侧的第二信息层上记录期间选择的（m×n）个控制参数中的两个预定控制参数之间的差的绝对值 等于或大于在第一信息层上记录期间选择的（m×n）个控制参数中的两个预定控制参数之间的差的绝对值。

公开(公告)号：US08426003B2

公开(公告)日：2013-04-23

申请号：US12745720

申请日：2008-12-04

申请人： Haruhiko Habuta ,  Noboru Yamada ,  Shigeru Furumiya

发明人： Haruhiko Habuta ,  Noboru Yamada ,  Shigeru Furumiya

IPC分类号： G11B7/24

CPC分类号： G11B7/24038 ,  G11B7/2433 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/259 ,  G11B2007/24304 ,  G11B2007/24308 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25718 ,  Y10T428/21

摘要： In an information recording medium including a substrate and an information layer having a recording layer, on and from which information is recorded and reproduced by laser beam application, the recording layer is made from a Te—O-MA-MB material consisting of Te, O, MA (wherein MA is at least one element selected from Au and Pd) and MB (wherein MB is at least one element selected from Ag, Cu and Ni) with a content of Te of 10 atom % to 50 atom %, the content of O of 40 atom % to 70 atom %, the content of MA of 3 atom % to 15 atom %, and the content of MB of 3 atom % to 15 atom %. This constitution provides a low-cost information recording medium which enables high-density recording and stable reproduction of recorded data for a long period of term.

摘要翻译： 在包括基板和具有记录层的信息层的信息记录介质中，通过激光束记录和再现信息，记录层由Te-O-MA-MB材料制成，其由Te， O，MA（其中MA是选自Au和Pd中的至少一种元素）和MB（其中MB是至少一种选自Ag，Cu和Ni的元素），Te含量为10原子％至50原子％， 40原子％至70原子％的O含量，3原子％至15原子％的MA含量，3原子％至15原子％的MB含量。 该结构提供了一种低成本的信息记录介质，其能够长期记录数据的高密度记录和稳定再现。

公开(公告)号：US08270542B2

公开(公告)日：2012-09-18

申请号：US12510419

申请日：2009-07-28

申请人： Takeshi Nakajima ,  Harumitsu Miyashita ,  Hiromichi Ishibashi ,  Shigeru Furumiya

发明人： Takeshi Nakajima ,  Harumitsu Miyashita ,  Hiromichi Ishibashi ,  Shigeru Furumiya

IPC分类号： H04L27/06

CPC分类号： G11B20/1816

摘要： A most probable path is selected from a number n (where n≧2) of paths of state transitions occurring from a first state Sk−j (where k≧3 and j≧2) at a time k−j into a second state Sk at a time k. The method includes the steps of detecting predetermined combinations of the first and second states Sk−j and Sk defining the n probable paths in a predetermined period j between the times k−j and k, and evaluating the reliability of a read signal, decoded in the period j, by |Pa−Pb|. Pa and Pb indicate the probabilities of state transition of first and second state transition paths in the period j. The first and second state transition paths are estimated to be the most probable and the second most probable, respectively, among the n probable paths defined by the combinations detected.

摘要翻译： 从时刻k-j的第一状态Sk-j（其中k≥3和j≥2）发生的状态转换路径的数n（其中n≥2）中选择最可能的路径到第二状态Sk 在一个时间k。 该方法包括以下步骤：检测在时间k-j和k之间的预定周期j中定义n个可能路径的第一和第二状态Sk-j和Sk的预定组合，并且评估读取信号的可靠性， 周期j，由| Pa-Pb |​​。 Pa和Pb表示周期j中第一和第二状态转换路径的状态转移的概率。 估计第一和第二状态转换路径是由检测到的组合定义的n个可能路径中最可能和最可能的最可能的。

公开(公告)号：US08223609B2

公开(公告)日：2012-07-17

申请号：US13271346

申请日：2011-10-12

申请人： Shigeru Furumiya

发明人： Shigeru Furumiya

IPC分类号： G11B7/00

CPC分类号： G11B7/00456 ,  G11B7/00736 ,  G11B2007/0013

摘要： According to a method of the present invention for recording data on an optical disk, a recording pulse corresponding to a long mark includes a combination of a leading pulse and a subsequent intermediate pulse. Further, a level of the leading pulse indicates a first recording power, and a level of the intermediate pulse indicates a second recording power. When an optical disk includes a plurality of recording layers, a ratio of the second recording power to the first recording power is determined for each recording layer. When the recording speed is variable, the ratio of the second recording power to the first recording power is determined for each recording speed.

摘要翻译： 根据本发明的用于在光盘上记录数据的方法，对应于长标记的记录脉冲包括前导脉冲和后续中间脉冲的组合。 此外，前导脉冲的电平表示第一记录功率，中间脉冲的电平表示第二记录功率。 当光盘包括多个记录层时，为每个记录层确定第二记录功率与第一记录功率的比率。 当记录速度可变时，针对每个记录速度确定第二记录功率与第一记录功率的比率。

公开(公告)号：US07990820B2

公开(公告)日：2011-08-02

申请号：US12369870

申请日：2009-02-12

申请人： Shigeru Furumiya ,  Atsushi Nakamura

发明人： Shigeru Furumiya ,  Atsushi Nakamura

IPC分类号： G11B5/09

CPC分类号： G11B7/00458 ,  G11B7/00736 ,  G11B7/268 ,  G11B20/10009 ,  G11B20/10314 ,  G11B20/10379 ,  G11B2020/1099 ,  G11B2220/218 ,  G11B2220/2541

摘要： An optical disc verification method according to the present invention includes the steps of: writing data on first, second and third radial locations on an optical disc at a writing speed V1 and reading the data written there, thereby measuring read signal quality index values A, B and C, where the second radial location is inside of the first radial location and the third radial location is inside of the second radial location; writing data on the first and second radial locations at a writing speed V2, which is higher than V1, and reading the data written there, thereby measuring read signal quality index values D and E; and correcting the signal quality index value C with the difference between the signal quality index values B and E, thereby calculating a signal quality index value F that would be obtained if data is written on, and then read from, the third radial location at the speed V2.

摘要翻译： 根据本发明的光盘验证方法包括以下步骤：以写入速度V1在光盘上的第一，第二和第三径向位置上写入数据，并读取写在其上的数据，从而测量读取信号质量指数值A， B和C，其中第二径向位置在第一径向位置内，第三径向位置在第二径向位置内; 以高于V1的写入速度V2在第一和第二径向位置上写入数据，并读取写入的数据，从而测量读取信号质量指标值D和E; 并且用信号质量指标值B和E之间的差校正信号质量指标值C，由此计算如果数据被写入的第三径向位置上的数据被读取，然后读取，则获得的信号质量指标值F 速度V2。

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：US20100302921A1

公开(公告)日：2010-12-02

申请号：US12745086

申请日：2009-11-19

申请人： Tomoyasu Takaoka ,  Shigeru Furumiya ,  Naoyasu Miyagawa

发明人： Tomoyasu Takaoka ,  Shigeru Furumiya ,  Naoyasu Miyagawa

IPC分类号： G11B19/00 ,  G11B7/26 ,  G11B7/00

CPC分类号： G11B7/126 ,  G11B7/24038

摘要： An information recording medium, comprising N number (N is an integer fulfilling N≧3) of information layers on which information is recordable, and allowing information to be recorded on each of the information layers and allowing information recorded on each of the information layers to be reproduced by being irradiated with laser light. The N number of information layers include an N'th information layer, an (N−1)th information layer, an (N−2)th information layer, . . . a second information layer and a first information layer sequentially located from a laser light incidence side. A reflectance of the N'th information layer is RN, and a reflectance of an M'th information layer (M refers to every integer fulfilling N>M≧1) is RM. The laser light used to irradiate the N'th information layer for reproducing information recorded on the N'th information layer has an upper limit reproduction power PrNmax, and the laser light used to irradiate the M'th information layer for reproducing information recorded on the M'th information layer has an upper limit reproduction power PrMmax. The following expressions (1) and (2) are concurrently fulfilled: RN>RM   (1) PrNmax

摘要翻译： 一种信息记录介质，包括可记录信息的信息层的N个数（N是满足N≥3的整数），并且允许将信息记录在每个信息层上并允许记录在每个信息层上的信息 通过用激光照射来再现。 N个信息层包括第N个信息层，第（N-1）个信息层，第（N-2）个信息层。 。 。 第二信息层和从激光入射侧依次定位的第一信息层。 第N个信息层的反射率为RN，第M个信息层（M为满足N>M≥1的每个整数）的反射率为RM。 用于照射第N信息层的用于再现记录在第N信息层上的信息的激光具有上限再现功率PrNmax，并且用于照射第M个信息层的激光用于再现记录在第N信息层上的信息 第M个信息层具有上限再现功率PrMmax。 同时满足下列表达式（1）和（2）：RN> RM（1）PrNmax

公开(公告)号：US07782743B2

公开(公告)日：2010-08-24

申请号：US11864226

申请日：2007-09-28

申请人： Takashi Ishida ,  Hiromichi Ishibashi ,  Mamoru Shoji ,  Atsushi Nakamura ,  Junichi Minamino ,  Shigeru Furumiya

发明人： Takashi Ishida ,  Hiromichi Ishibashi ,  Mamoru Shoji ,  Atsushi Nakamura ,  Junichi Minamino ,  Shigeru Furumiya

IPC分类号： G11B7/24

CPC分类号： G11B7/0079 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/24 ,  G11B7/24079 ,  G11B7/24082 ,  G11B7/24085

摘要： An optical disk includes a groove and a land. Data is recorded on either the land or the groove. A pitch of the groove and a pitch of the land are 0.32 μm or more. The optical disk has a data efficiency of 80% or more by adopting a format in which other types of user data are added to every plural user data sets. The data efficiency is defined by a ratio of a user data capacity that can be used by a user to a total data capacity of the optical disk.

摘要翻译： 光盘包括槽和焊盘。 数据记录在陆地或凹槽上。 凹槽的间距和平台的间距为0.32μm以上。 通过采用将其他类型的用户数据添加到每个多个用户数据集的格式，光盘的数据效率为80％以上。 数据效率由用户可以使用的用户数据容量与光盘的总数据容量的比率来定义。