公开(公告)号：US5410534A

公开(公告)日：1995-04-25

申请号：US77374

申请日：1993-06-17

申请人： Ken'ichi Nagata ,  Eiji Ohno ,  Nobuo Akahira ,  Ken'ichi Nishiuchi ,  Noboru Yamada

发明人： Ken'ichi Nagata ,  Eiji Ohno ,  Nobuo Akahira ,  Ken'ichi Nishiuchi ,  Noboru Yamada

IPC分类号： G11B7/005 ,  G11B7/24 ,  G11B3/70

CPC分类号： G11B7/24 ,  G11B7/0051

摘要： In an optical recording medium having concave and convex type signal pits formed on a substrate surface, a reflection layer is formed on the signal pits in such a manner that a reflection index of an interior of the signal pits is higher than a reflection index at a periphery of the signal pits with respect to a given reproduction laser beam wavelength. In an optical recording medium having a phase change recording layer which reversibly changes optical states upon application of laser energy, a structural phase difference between a reflection beam of non-recorded regions and a reflection beam of recorded regions of the optical recording medium with respect to the wavelength of a reproduction laser beam is in a range of (0.5-1.5)+2 n.pi. radians, where n is an integer. The phase change recording layer has principle components of Ge-Sb-Te or Sb-Se.

摘要翻译： 在形成在基板表面上的具有凹凸型信号凹坑的光记录介质中，在信号凹坑上形成反射层，使得信号凹坑内部的反射指数高于信号凹坑内部的反射指数 信号的周边相对于给定的再现激光束波长凹坑。 在具有在施加激光能量时可逆地改变光学状态的相变记录层的光学记录介质中，非记录区域的反射光束和光学记录介质的记录区域的反射光束之间的结构相位差相对于 再现激光束的波长在（0.5-1.5）+2n pi弧度的范围内，其中n是整数。 相变记录层具有Ge-Sb-Te或Sb-Se的主要成分。

公开(公告)号：US5493561A

公开(公告)日：1996-02-20

申请号：US77373

申请日：1993-06-17

申请人： Kenichi Nishiuchi ,  Nobuo Akahira ,  Noboru Yamada ,  Eiji Ohno ,  Ken'ichi Nagata

发明人： Kenichi Nishiuchi ,  Nobuo Akahira ,  Noboru Yamada ,  Eiji Ohno ,  Ken'ichi Nagata

IPC分类号： G11B7/0045 ,  G11B7/007 ,  G11B7/013 ,  G11B7/09 ,  G11B7/24 ,  G11B7/243 ,  G11B7/254 ,  B32B3/00

CPC分类号： G11B7/24 ,  G11B7/00454 ,  G11B7/00718 ,  G11B7/0938 ,  G11B7/24085 ,  G11B7/24079 ,  G11B7/243 ,  G11B7/254

摘要： An optical information recording medium, wherein concave and convex shaped guide grooves narrower in width W than the spot diameter of the laser beam is formed in the face of the recording film layer of a substrate, and the recording film layer undergoes optically detectable changes caused by the application of a laser beam thereto, the detectable changes being due to the changes in the optical phase of the reflected light or the transmitted light, and the changes in the optical phase being caused in the direction of reducing the optical phase difference between concave and convex portions of guide grooves disposed in the substrate.

摘要翻译： 一种光学信息记录介质，其中在基板的记录膜层的表面上形成宽度W比激光束的光斑直径窄的凹凸引导槽，并且记录膜层经历光学上可检测的变化 对其施加激光束，可检测的变化是由于反射光或透射光的光学相位的变化引起的，并且光学相位的变化是在减小凹面和凹部之间的光学相位差的方向上引起的 设置在基板中的引导槽的凸部。

公开(公告)号：US06707776B2

公开(公告)日：2004-03-16

申请号：US10266653

申请日：2002-10-07

申请人： Ken'ichi Nagata ,  Kenichi Nishiuchi ,  Eiji Ohno ,  Nobuo Akahira ,  Kenji Narumi

发明人： Ken'ichi Nagata ,  Kenichi Nishiuchi ,  Eiji Ohno ,  Nobuo Akahira ,  Kenji Narumi

IPC分类号： G11B700

CPC分类号： G11B7/24085 ,  G11B7/0045 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/00745 ,  G11B7/0938 ,  G11B7/126 ,  G11B7/24079 ,  G11B20/1217 ,  G11B27/19 ,  G11B27/3027 ,  G11B27/36 ,  G11B2020/10898 ,  G11B2020/1232 ,  G11B2020/1265 ,  G11B2020/1287 ,  G11B2020/1288 ,  G11B2220/20 ,  G11B2220/2537

摘要： The present invention relates to a recording and reproducing method and apparatus for an optical disk of the phase transition type that can be overwritten. According to this invention, the capacity of repeated rewriting of the optical disk is expanded by recording either non-inverted write data or inverted write data at random. The deterioration due to the repeated rewriting at a start point and an end point of the recording is suppressed by recording a synchronizing signal before the write data and/or dummy data after the write data in the way such that thermal stress is less likely to occur. A record end position can be determined precisely by detecting a stop pulse to stop recording.

摘要翻译： 本发明涉及一种可被覆盖的相变型光盘的记录和再现方法和装置。 根据本发明，通过随机记录非反相写入数据或反转写入数据来扩展光盘重复重写的能力。 通过在写入数据之前的写入数据和/或伪数据之前记录同步信号以使得不太可能发生热应力的方式来抑制由于记录的起始点和终止点处的重复重写导致的劣化 。 可以通过检测停止脉冲来停止记录来精确地确定记录结束位置。

公开(公告)号：US06487151B1

公开(公告)日：2002-11-26

申请号：US08574306

申请日：1995-12-18

申请人： Ken'ichi Nagata ,  Kenichi Nishiuchi ,  Eiji Ohno ,  Nobuo Akahira ,  Kenji Narumi

发明人： Ken'ichi Nagata ,  Kenichi Nishiuchi ,  Eiji Ohno ,  Nobuo Akahira ,  Kenji Narumi

IPC分类号： G11A700

CPC分类号： G11B7/24085 ,  G11B7/0045 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/00745 ,  G11B7/0938 ,  G11B7/126 ,  G11B7/24079 ,  G11B20/1217 ,  G11B27/19 ,  G11B27/3027 ,  G11B27/36 ,  G11B2020/10898 ,  G11B2020/1232 ,  G11B2020/1265 ,  G11B2020/1287 ,  G11B2020/1288 ,  G11B2220/20 ,  G11B2220/2537

摘要： A recording and reproducing method and apparatus for an optical disk of the phase transition type is provided. This method comprises the steps of deciding at random to invert or not to invert write data that has a predetermined block length; inverting the write data if the decision is to invert the write data; and recording either the non-inverted write data or the inverted write data into the photo-sensitive record layer. A synchronizing signal is recorded before the write data and/or dummy data after the write data in the way such that thermal stress is less likely to occur. A record end position can be determined precisely by detecting a stop pulse.

摘要翻译： 提供了一种用于相变型光盘的记录和再现方法和装置。 该方法包括随机决定反转或不反转具有预定块长度的写入数据的步骤; 如果决定是反转写入数据，则反转写入数据; 并将非反相写入数据或反转写入数据记录到感光记录层中。 在写入数据之前的写入数据和/或伪数据之前记录同步信号，使得热应力不太可能发生。 可以通过检测停止脉冲来精确地确定记录结束位置。

公开(公告)号：US6031814A

公开(公告)日：2000-02-29

申请号：US789092

申请日：1997-01-27

申请人： Ken'ichi Nagata ,  Kenichi Nishiuchi ,  Eiji Ohno ,  Nobuo Akahira ,  Kenji Narumi

发明人： Ken'ichi Nagata ,  Kenichi Nishiuchi ,  Eiji Ohno ,  Nobuo Akahira ,  Kenji Narumi

IPC分类号： G11B7/004 ,  G11B7/0045 ,  G11B7/0055 ,  G11B7/006 ,  G11B7/007 ,  G11B7/013 ,  G11B7/09 ,  G11B7/125 ,  G11B20/12 ,  G11B27/19 ,  G11B27/30 ,  G11B27/36 ,  G11B7/00

CPC分类号： G11B7/24085 ,  G11B20/1217 ,  G11B27/19 ,  G11B27/3027 ,  G11B27/36 ,  G11B7/00454 ,  G11B7/006 ,  G11B7/007 ,  G11B7/00745 ,  G11B7/013 ,  G11B7/126 ,  G11B7/24079 ,  G11B2020/10898 ,  G11B2020/1232 ,  G11B2020/1265 ,  G11B2020/1287 ,  G11B2020/1288 ,  G11B2220/20 ,  G11B2220/2537 ,  G11B7/0045 ,  G11B7/00557 ,  G11B7/0938

摘要： A recording and reproducing apparatus for an optical disk of the transitional type that can be overwritten, having an optical information recording medium. The medium has a guide groove and a sector ID area. Information is recorded by irradiation with a light beam to change a state of a photo-sensitive record layer, and the recording may be stopped by the generation of a stop pulse. The stop pulse may be generated by an altered width of the guide groove before the sector ID area, or by one or more larger prepits before the sector ID area.

摘要翻译： 一种用于可被覆盖的具有光学信息记录介质的过渡型光盘的记录和再现装置。 介质具有引导槽和扇区ID区域。 通过用光束照射来记录信息以改变感光记录层的状态，并且可以通过产生停止脉冲来停止记录。 停止脉冲可以通过在扇区ID区域之前的引导槽的改变的宽度，或者在扇区ID区域之前由一个或多个较大的预凹坑产生。

公开(公告)号：US06697313B2

公开(公告)日：2004-02-24

申请号：US10339857

申请日：2003-01-09

申请人： Ken'ichi Nagata ,  Kenichi Nishiuchi ,  Eiji Ohno ,  Nobuo Akahira ,  Kenji Narumi

发明人： Ken'ichi Nagata ,  Kenichi Nishiuchi ,  Eiji Ohno ,  Nobuo Akahira ,  Kenji Narumi

IPC分类号： G11B700

CPC分类号： G11B7/24085 ,  G11B7/0045 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/00745 ,  G11B7/0938 ,  G11B7/126 ,  G11B7/24079 ,  G11B20/1217 ,  G11B27/19 ,  G11B27/3027 ,  G11B27/36 ,  G11B2020/10898 ,  G11B2020/1232 ,  G11B2020/1265 ,  G11B2020/1287 ,  G11B2020/1288 ,  G11B2220/20 ,  G11B2220/2537

摘要： The present invention relates to a recording and reproducing method and apparatus for an optical disk of the phase transition type that can be overwritten. According to this invention, the capacity of repeated rewriting of the optical disk is expanded by recording either non-inverted write data or inverted write data at random. The deterioration due to the repeated rewriting at a start point and an end point of the recording is suppressed by recording a synchronizing signal before the write data and/or dummy data after the write data in the way such that thermal stress is less likely to occur. A record end position can be determined precisely by detecting a stop pulse to stop recording.

摘要翻译： 本发明涉及一种可被覆盖的相变型光盘的记录和再现方法和装置。 根据本发明，通过随机记录非反相写入数据或反转写入数据来扩展光盘重复重写的能力。 通过在写入数据之前的写入数据和/或伪数据之前记录同步信号以使得不太可能发生热应力的方式来抑制由于记录的起始点和终止点处的重复重写导致的劣化 。 可以通过检测停止脉冲来停止记录来精确地确定记录结束位置。

公开(公告)号：US06683739B2

公开(公告)日：2004-01-27

申请号：US10254153

申请日：2002-09-24

申请人： Ken'ichi Nagata ,  Kenichi Nishiuchi ,  Eiji Ohno ,  Nobuo Akahira ,  Kenji Narumi

发明人： Ken'ichi Nagata ,  Kenichi Nishiuchi ,  Eiji Ohno ,  Nobuo Akahira ,  Kenji Narumi

IPC分类号： G11B700

CPC分类号： G11B7/24085 ,  G11B7/0045 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/00745 ,  G11B7/0938 ,  G11B7/126 ,  G11B7/24079 ,  G11B20/1217 ,  G11B27/19 ,  G11B27/3027 ,  G11B27/36 ,  G11B2020/10898 ,  G11B2020/1232 ,  G11B2020/1265 ,  G11B2020/1287 ,  G11B2020/1288 ,  G11B2220/20 ,  G11B2220/2537

摘要： The present invention relates to a recording and reproducing method and apparatus for an optical disk of the phase transition type that can be overwritten. According to this invention, the capacity of repeated rewriting of the optical disk is expanded by recording either non-inverted write data or inverted write data at random. The deterioration due to the repeated rewriting at a start point and an end point of the recording is suppressed by recording a synchronizing signal before the write data and/or dummy data after the write data in the way such that thermal stress is less likely to occur. A record end position can be determined precisely by detecting a stop pulse to stop recording.

公开(公告)号：US06587420B1

公开(公告)日：2003-07-01

申请号：US09319325

申请日：1999-06-03

申请人： Ken'ichi Nagata ,  Noboru Yamada ,  Nobuo Akahira ,  Kenichi Nishiuchi

发明人： Ken'ichi Nagata ,  Noboru Yamada ,  Nobuo Akahira ,  Kenichi Nishiuchi

IPC分类号： G11B700

CPC分类号： G11B7/243 ,  G11B7/0062 ,  G11B7/0901 ,  G11B7/0906 ,  G11B7/0938 ,  G11B7/24 ,  G11B7/24079 ,  G11B7/246 ,  G11B7/254 ,  G11B7/257 ,  G11B7/258 ,  G11B7/2595 ,  G11B2007/24312 ,  G11B2007/24316

摘要： Tracking control is carried out by a push-pull method or by mechanical feed at the time of recording signals, and tracking control is carried out by a phase difference tracking method at the time of reproduction. Thus, a phase change type optical disk which enables phase difference reproduction and is erasable may be realized. In a phase change type optical disk having a phase difference reproduction structure, servo mechanism at the time of reproducing signals may be stably controlled by causing the reflectance of a blank portion to be higher than the reflectance of a recording mark portion.

摘要翻译： 在记录信号时通过推挽方法或机械进给进行跟踪控制，并且在再现时通过相位差跟踪方法进行跟踪控制。 因此，可以实现能够进行相位差再现并且是可擦除的相变型光盘。 在具有相位差再现结构的相变型光盘中，通过使空白部分的反射率高于记录标记部分的反射率，可以稳定地控制再现信号时的伺服机构。

公开(公告)号：US06744724B2

公开(公告)日：2004-06-01

申请号：US10431876

申请日：2003-05-07

申请人： Ken'ichi Nagata ,  Noboru Yamada ,  Nobuo Akahira ,  Kenichi Nishiuchi

发明人： Ken'ichi Nagata ,  Noboru Yamada ,  Nobuo Akahira ,  Kenichi Nishiuchi

IPC分类号： G11B700

CPC分类号： G11B7/243 ,  G11B7/0062 ,  G11B7/0901 ,  G11B7/0906 ,  G11B7/0938 ,  G11B7/24 ,  G11B7/24079 ,  G11B7/246 ,  G11B7/254 ,  G11B7/257 ,  G11B7/258 ,  G11B7/2595 ,  G11B2007/24312 ,  G11B2007/24316

摘要： Tracking control is carried out by a push-pull method or by mechanical feed at the time of recording signals, and tracking control is carried out by a phase difference tracking method at the time of reproduction. Thus, a phase change type optical disk which enables phase difference reproduction and is erasable may be realized. In a phase change type optical disk having a phase difference reproduction structure, servo mechanism at the time of reproducing signals may be stably controlled by causing the reflectance of a blank portion to be higher than the reflectance of a recording mark portion.

摘要翻译： 在记录信号时通过推挽方法或机械进给进行跟踪控制，并且在再现时通过相位差跟踪方法进行跟踪控制。 因此，可以实现能够进行相位差再现并且是可擦除的相变型光盘。 在具有相位差再现结构的相变型光盘中，通过使空白部分的反射率高于记录标记部分的反射率，可以稳定地控制再现信号时的伺服机构。

公开(公告)号：US06456584B1

公开(公告)日：2002-09-24

申请号：US09311635

申请日：1999-05-14

申请人： Ken'ichi Nagata ,  Kenichi Nishiuchi ,  Noboru Yamada ,  Nobuo Akahira

发明人： Ken'ichi Nagata ,  Kenichi Nishiuchi ,  Noboru Yamada ,  Nobuo Akahira

IPC分类号： G11B724

CPC分类号： G11B7/26 ,  G11B7/00454 ,  G11B7/0052 ,  G11B7/126 ,  G11B7/24038 ,  G11B7/243 ,  G11B7/252 ,  G11B2007/0013 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2571 ,  G11B2007/25713

摘要： A multi-layer optical information recording medium has a first information layer located at the incident side for a laser beam and another information layer at the back thereof. Thus, it has a large capacity. A relationship that R1a

摘要翻译： 多层光信息记录介质具有位于激光束的入射侧的第一信息层和其背面的另一信息层。 因此，它具有很大的容量。 在记录部分和非记录部分中R1a