公开(公告)号：US5559777A

公开(公告)日：1996-09-24

申请号：US428057

申请日：1995-04-25

申请人： Takeshi Maeda ,  Shinichi Arai ,  Kazuo Isaka ,  Atsushi Saito ,  Takuya Mizokami ,  Hisataka Sugiyama ,  Satoshi Kawamura

发明人： Takeshi Maeda ,  Shinichi Arai ,  Kazuo Isaka ,  Atsushi Saito ,  Takuya Mizokami ,  Hisataka Sugiyama ,  Satoshi Kawamura

IPC分类号： G11B7/004 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B7/125 ,  G11B20/10 ,  G11B20/12 ,  G11B20/14 ,  G11B20/18 ,  G11B23/40 ,  G11B5/09

CPC分类号： G11B7/005 ,  G11B20/10 ,  G11B20/1258 ,  G11B20/1403 ,  G11B20/1833 ,  G11B23/40 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/00736 ,  G11B7/0079 ,  G11B7/126 ,  G11B20/1879 ,  G11B2020/1277

摘要： An information recording/reproducing method is disclosed for an information recording/reproducing apparatus including a recording medium having a disk-like shape, a unit for rotating the recording medium at a constant angular velocity, a unit for recording code information so that the bit length of the code information becomes approximately constant with respect to a radial position on the recording medium, a unit for modulating the code information to be recorded to form a modulated signal, and a recording unit for forming in the recording medium a localized recording region having a different physical property with respect to an unrecorded region, the recording unit being controlled by the modulated signal so that the code information is recorded to correspond to the edge of the recording region, wherein the bit rate of the code information to be recorded changes depending on a location on the recording medium, and a part of each of a recording characteristic of the apparatus and a reproducing characteristic of the apparatus is changed in accordance with a location on the recording medium.

摘要翻译： 公开了一种信息记录/再现方法，用于包括具有盘状形状的记录介质，用于以恒定角速度旋转记录介质的单元的信息记录/再现装置，用于记录代码信息的单元，使得位长度 代码信息相对于记录介质上的径向位置变得近似恒定，用于调制要记录的代码信息以形成调制信号的单元，以及记录单元，用于在记录介质中形成具有 相对于未记录区域的不同物理特性，记录单元由调制信号控制，使得代码信息被记录为对应于记录区域的边缘，其中要记录的代码信息的比特率根据 记录介质上的位置，以及装置和记录介质的记录特性的一部分 根据记录介质上的位置改变设备的生产特性。

公开(公告)号：US5414689A

公开(公告)日：1995-05-09

申请号：US820593

申请日：1992-01-27

申请人： Takeshi Maeda ,  Shinichi Arai ,  Kazuo Isaka ,  Atsushi Saito ,  Takuya Mizokami ,  Histaka Sugiyama ,  Satoshi Kawamura

发明人： Takeshi Maeda ,  Shinichi Arai ,  Kazuo Isaka ,  Atsushi Saito ,  Takuya Mizokami ,  Histaka Sugiyama ,  Satoshi Kawamura

IPC分类号： G11B7/004 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B7/125 ,  G11B20/10 ,  G11B20/12 ,  G11B20/14 ,  G11B20/18 ,  G11B23/40 ,  G11B7/00

CPC分类号： G11B7/005 ,  G11B20/10 ,  G11B20/1258 ,  G11B20/1403 ,  G11B20/1833 ,  G11B23/40 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/00736 ,  G11B7/0079 ,  G11B7/126 ,  G11B20/1879 ,  G11B2020/1277

摘要： An information recording/reproducing method is disclosed for an information recording/reproducing apparatus including a recording medium having a disk-like shape, a unit for rotating the recording medium at a constant angular velocity, a unit for recording code information so that the bit length of the code information becomes approximately constant with respect to a radial position on the recording medium, a unit for modulating the code information to be recorded to form a modulated signal, and a recording unit for forming in the recording medium a localized recording region having a different physical property with respect to an unrecorded region, the recording unit being controlled by the modulated signal so that the code information is recorded to correspond to the edge of the recording region, wherein the bit rate of the code information to be recorded changes depending on a location on the recording medium, and a part of each of a recording characteristic of the apparatus and a reproducing characteristic of the apparatus is changed in accordance with a location on the recording medium.

摘要翻译： PCT No.PCT / JP91 / 00697 Sec。 371日期：1992年1月27日 102（e）日期1992年1月27日PCT提交1991年5月24日PCT公布。 公开号WO91 / 19290 1991年12月12日，日本公开了一种信息记录/重放装置，包括具有盘状形状的记录介质，用于以恒定角速度旋转记录介质的单元，用于记录的单元 代码信息，使得代码信息的位长度相对于记录介质上的径向位置变为近似恒定，用于调制要记录的代码信息以形成调制信号的单元，以及用于在记录中形成的记录单元 介质相对于未记录区域具有不同物理特性的局部记录区域，记录单元由调制信号控制，使得记录信息对应于记录区域的边缘，其中代码的比特率 要记录的信息根据记录介质上的位置而变化，并且记录特性的一部分 e装置和再现特性根据记录介质上的位置而改变。

公开(公告)号：US5233589A

公开(公告)日：1993-08-03

申请号：US460370

申请日：1990-01-03

申请人： Atsushi Saito ,  Takeshi Maeda ,  Shinichi Arai ,  Satoshi Kawamura ,  Takuya Mizokami

发明人： Atsushi Saito ,  Takeshi Maeda ,  Shinichi Arai ,  Satoshi Kawamura ,  Takuya Mizokami

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B20/10 ,  G11B20/12

CPC分类号： G11B20/10222 ,  G11B20/10009 ,  G11B20/1217

摘要： In a method for recording/reproducing information, a reference pattern is recorded in a certain predetermined domain so that the leading-edge and the tailing-edge of a certain recorded portion are positioned in a predetermined relationship, when coded bits of data are recorded on a recording medium by forming recorded portions physically different from not recorded portions, while making them correspond to leading-edges and tailing-edges of the recorded portions. A first and a second reproduced signal indicating the leading-edge and the tailing-edge of the recorded portion, respectively, are detected independently from each other from a reproduced waveform corresponding to the recorded portion, which has been thus recorded; and the first and the second reproduced signal are reconstructed while correcting edge shifts produced at recording data by storing the first and second reproduced signal in a memory, so that the first and the second reproduced signal indicate the leading-edge and the tailing-edge of the recorded portion corresponding to the reference pattern, respectively, in the predetermined relationship.

摘要翻译： 在用于记录/再现信息的方法中，将参考图案记录在特定的预定域中，使得某个记录部分的前沿和后端位于预定关系中，当数据的编码位被记录在 通过在与记录部分物理上不同的记录部分同时使它们对应于所记录部分的前缘和尾边来记录介质。 分别从对应于已记录的记录部分的再现波形彼此独立地检测指示记录部分的前沿和尾边的第一和第二再现信号; 并且通过将第一和第二再现信号存储在存储器中来校正在记录数据处产生的边沿位移，重建第一和第二再现信号，使得第一和第二再现信号指示前沿和后沿 分别对应于参考图案的记录部分以预定关系。

公开(公告)号：US5524103A

公开(公告)日：1996-06-04

申请号：US308868

申请日：1994-09-19

申请人： Kikuo Shimizu ,  Shinichi Arai ,  Takuya Mizokami ,  Takeshi Maeda ,  Atsushi Saito

发明人： Kikuo Shimizu ,  Shinichi Arai ,  Takuya Mizokami ,  Takeshi Maeda ,  Atsushi Saito

IPC分类号： G11B20/10 ,  G11B5/012 ,  G11B7/00 ,  G11B7/004 ,  G11B7/005 ,  G11B7/007 ,  G11B20/12 ,  G11B20/14 ,  G11B20/18 ,  G11B27/30

CPC分类号： G11B5/012 ,  G11B20/10009 ,  G11B20/10222 ,  G11B20/1258 ,  G11B20/1403 ,  G11B27/3027 ,  G11B7/005 ,  G11B20/1879 ,  G11B2220/20

摘要： In recording and/or reproducing data into and from a disk record medium having a record medium in which a plurality of tracks are arranged radially, the record area is divided into a plurality of zones, and a clock frequency is assigned to each zone. The data recording and/or reproducing are performed according to the clock of the frequency assigned to the respective zone. Each zone is subdivided to include a plurality of tracks, and a clock having a different frequency is assigned to each zone. Each frequency is set in such a manner that the record capacity of the track gradually becomes larger as the zone is nearer to the outer zone.

摘要翻译： 在记录和/或再现数据到具有其中多个轨迹被放置在其中的记录介质的磁盘记录介质的数据中，记录区域被划分成多个区域，时钟频率被分配给每个区域。 数据记录和/或再现根据分配给各个区域的频率的时钟来执行。 每个区域被细分为包括多个轨道，并且具有不同频率的时钟被分配给每个区域。 每个频率被设置为使得轨道的记录容量随着区域更靠近外部区域而逐渐变大。

公开(公告)号：US5848045A

公开(公告)日：1998-12-08

申请号：US968526

申请日：1997-11-12

申请人： Fumiyoshi Kirino ,  Tsuyoshi Toda ,  Hiroshi Ide ,  Hisataka Sugiyama ,  Atsushi Saito ,  Hiroyuki Tsuchinaga ,  Takeshi Maeda ,  Fumio Kugiya ,  Toshimitsu Kaku ,  Seiichi Mita ,  Kazuo Shigematsu ,  Yasuhide Ouchi

发明人： Fumiyoshi Kirino ,  Tsuyoshi Toda ,  Hiroshi Ide ,  Hisataka Sugiyama ,  Atsushi Saito ,  Hiroyuki Tsuchinaga ,  Takeshi Maeda ,  Fumio Kugiya ,  Toshimitsu Kaku ,  Seiichi Mita ,  Kazuo Shigematsu ,  Yasuhide Ouchi

IPC分类号： G11B7/0045 ,  G11B7/095 ,  G11B7/125 ,  G11B11/105 ,  G11B20/12 ,  G11B20/18 ,  G11B7/00

CPC分类号： G11B7/126 ,  G11B11/1053 ,  G11B11/10595 ,  G11B7/0045 ,  G11B7/0956 ,  G11B20/1258 ,  G11B20/182

摘要： A super high density optical disk apparatus is obtained by using an exchangeable recording medium having a recording capacity of at least 1.5 Gb/in.sup.2 in an optical recording and reading apparatus for recording or reading at least using a laser beam or by using one of means which can record on a recording medium only once and means which can record at least two times repeatedly as recording means to be used.

摘要翻译： 通过在至少使用激光束进行记录或读取的光学记录和读取装置中使用具有至少1.5Gb / in2的记录容量的可交换记录介质来获得超高密度光盘装置，或者通过使用 可以在记录介质上记录一次，并且可以重复记录至少两次作为要使用的记录装置的装置。

公开(公告)号：USRE35435E

公开(公告)日：1997-01-28

申请号：US757911

申请日：1991-09-11

申请人： Atsushi Saito ,  Takeshi Maeda ,  Hisataka Sugiyama ,  Wasao Takasugi

发明人： Atsushi Saito ,  Takeshi Maeda ,  Hisataka Sugiyama ,  Wasao Takasugi

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/013 ,  G11B7/125 ,  G11B11/105 ,  G11B20/10 ,  G11B7/007

CPC分类号： G11B7/126 ,  G11B11/10528 ,  G11B11/1053 ,  G11B20/10009 ,  G11B20/10222 ,  G11B7/24085 ,  G11B11/10595

摘要： A method and an apparatus for recording and reproducing information for use with an optical disk apparatus in which a pit edge recording method is used. According to the pit edge recording method, the leading edge and the trailing edge of a hole pit or a record domain generated during a recording operation are dealt with as information. During the recording, the recording pulse width and the recording power are corrected, and during the reproduction, the variation in the edge position is corrected.

摘要翻译： 一种用于记录和再现用于其中使用凹坑边缘记录方法的光盘装置的信息的方法和装置。 根据凹坑边缘记录方法，作为信息处理在记录操作期间产生的孔坑或记录域的前缘和后缘。 在记录期间，记录脉冲宽度和记录功率被校正，并且在再现期间修正边缘位置的变化。

公开(公告)号：US5703855A

公开(公告)日：1997-12-30

申请号：US220428

申请日：1994-03-30

申请人： Fumiyoshi Kirino ,  Tsuyoshi Toda ,  Horishi Ide ,  Hisataka Sugiyama ,  Atsushi Saito ,  Hiroyuki Tsuchinaga ,  Takeshi Maeda ,  Fumio Kugiya ,  Toshimitsu Kaku ,  Seiichi Mita ,  Kazuo Shigematsu ,  Yasuhide Ouchi

发明人： Fumiyoshi Kirino ,  Tsuyoshi Toda ,  Horishi Ide ,  Hisataka Sugiyama ,  Atsushi Saito ,  Hiroyuki Tsuchinaga ,  Takeshi Maeda ,  Fumio Kugiya ,  Toshimitsu Kaku ,  Seiichi Mita ,  Kazuo Shigematsu ,  Yasuhide Ouchi

IPC分类号： G11B7/0045 ,  G11B7/095 ,  G11B7/125 ,  G11B11/105 ,  G11B20/12 ,  G11B20/18 ,  G11B7/00

CPC分类号： G11B7/126 ,  G11B11/1053 ,  G11B11/10595 ,  G11B7/0045 ,  G11B7/0956 ,  G11B20/1258 ,  G11B20/182

摘要： A super high density optical disk apparatus is obtained by using an exchangeable recording medium having a recording capacity of at least 1.5 Gb/in.sup.2 in an optical recording and reading apparatus for recording or reading at least using a laser beam or by using one of an element which can record on a recording medium only once and another element which can record at least two times repeatedly as recording elements to be used.

摘要翻译： 通过在至少使用激光束的记录或读取的光学记录和读取装置中使用具有至少1.5Gb / in2的记录容量的可交换记录介质来获得超高密度光盘装置，或者通过使用元件 其可以在记录介质上记录一次，另一个可以重复记录至少两次的元素作为要使用的记录元素。

公开(公告)号：US4969137A

公开(公告)日：1990-11-06

申请号：US155697

申请日：1988-02-16

申请人： Hisataka Sugiyama ,  Takeshi Maeda ,  Atsushi Saito ,  Fumio Hara

发明人： Hisataka Sugiyama ,  Takeshi Maeda ,  Atsushi Saito ,  Fumio Hara

IPC分类号： G11B7/085 ,  G11B7/09 ,  G11B7/12 ,  G11B7/14

CPC分类号： G11B7/14 ,  G11B7/08517 ,  G11B7/08529 ,  G11B7/08547 ,  G11B7/12 ,  G11B7/0901 ,  G11B7/0912

摘要： In optically coupling a plurality of light sources to an optical system for focusing light beams from the light sources into spots on a record plane, a center axis of a light beam from a first one of the light sources is aligned to an optical axis of the focusing optical system, and the spots other than a first spot formed by the light beam from the first light source are rotated around the first spot on the record plane to position the spots to the respective target tracks, and a tracking error signal for at least one of the first spot and another spot is detected and the positions of the plurality of spots are integrally controlled based on the detected tracking error signal so that the plurality of spots can follow the respective target tracks. The target tracks to which the spots are to be positioned may be either one track or different tracks. The positioning of the spots to the target tracks may be done either manually or automatically. In the automatic method, a tracking error signal is detected for the first spot, and a deflection mechanism for radially swinging beams from the laser light sources is controlled to control the positions of the spots on the record plane and to cause the first spot to follow the target track.

摘要翻译： 在将多个光源光学耦合到用于将来自光源的光束聚焦到记录平面上的光点的光学系统中，来自第一个光源的光束的中心轴线与光源的光轴对齐 聚焦光学系统，并且除了由来自第一光源的光束形成的第一光斑之外的光点围绕记录平面上的第一光点旋转，以将光斑定位到各个目标轨道，并且至少跟踪误差信号 根据检测到的跟踪误差信号检测第一点和另一个点之一，并且多个点的位置被一体地控制，使得多个点可以跟随相应的目标轨道。 斑点要被定位到的目标轨道可以是一个轨道或不同的轨道。 斑点到目标轨迹的定位可以手动或自动完成。 在自动方法中，对于第一点检测跟踪误差信号，并且控制用于从激光光源径向摆动的光束的偏转机构，以控制记录平面上的点的位置并使第一点跟随 目标轨道。

公开(公告)号：US4743774A

公开(公告)日：1988-05-10

申请号：US828719

申请日：1986-02-12

申请人： Takeshi Maeda ,  Shigeru Nakamura ,  Hisataka Sugiyama ,  Kazuo Shigematsu ,  Atsushi Saito

发明人： Takeshi Maeda ,  Shigeru Nakamura ,  Hisataka Sugiyama ,  Kazuo Shigematsu ,  Atsushi Saito

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/005 ,  G11B20/10 ,  G06K7/10

CPC分类号： G11B7/005 ,  G11B20/10009

摘要： Method and apparatus for optically detecting information from a recording medium in which pits are formed by thermal energy of a light spot to record the information. A reproduction spot is irradiated onto the recording medium to produce a detection signal. From a differential signal of the detection signal, a signal indicative of zero points of the differential signal and a signal indicative of the presence of the pits are detected, and both the signals are used to detect positions of the pits. For stable and accurate detection of the pit position, the relation between pit size W and reproduction spot size W.sub.s is prescribed and the pit size and reproduction spot size are so set as to satisfy 0.45.ltoreq.W/W.sub.s .ltoreq.0.75.

摘要翻译： 用于从记录介质光学检测信息的方法和装置，其中通过光点的热能形成凹坑以记录信息。 将再现点照射到记录介质上以产生检测信号。 根据检测信号的差分信号，检测出表示差分信号的零点的信号和指示凹坑存在的信号，并且这两个信号用于检测凹坑的位置。 为了稳定且准确地检测凹坑位置，规定凹坑尺寸W与再现点尺寸Ws之间的关系，并且将凹坑尺寸和再现点尺寸设定为满足0.45≤W/ Ws <0.75。

公开(公告)号：US4835759A

公开(公告)日：1989-05-30

申请号：US878436

申请日：1986-06-25

申请人： Atsushi Saito ,  Takeshi Maeda ,  Hisataka Sugiyama ,  Kazuo Shigematsu ,  Wasao Takasugi

发明人： Atsushi Saito ,  Takeshi Maeda ,  Hisataka Sugiyama ,  Kazuo Shigematsu ,  Wasao Takasugi

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/005 ,  G11B7/013 ,  G11B20/10 ,  G11B20/14 ,  G11B27/30

CPC分类号： G11B20/10222 ,  G11B20/10009 ,  G11B20/1403 ,  G11B27/3027 ,  G11B7/004 ,  G11B7/24085

摘要： When recording domains are formed locally on a recording medium and information is recorded and reproduced by using rise and fall in a reproduced waveform obtained from the recording domains as data, timing patterns indicating start of demodulation are recorded for the lead-edge and the tail-edge of the recording domains, respectively; time interval between the timing signal for starting demodulation detected from the rise in the reproduced waveform and the timing signal for starting demodulation detected from the fall in the reproduced waveform is detected; time shifts of the signals detected from the lead-edge and the tail-edge of the recording domains succeeding the timing patterns for starting demodulation by using the time interval thus detected; and the information is stably detected as time sequential data having no jitter.

摘要翻译： 当在记录介质上本地形成记录域时，通过使用从记录域获得的再现波形中的上升和下降来记录和再现信息作为数据，记录指示开始解调的定时模式用于前沿和尾部， 分别记录域的边缘; 检测从再生波形的上升检测到的开始解调用定时信号与从再现波形的下降检测到的开始解调用定时信号之间的时间间隔; 通过使用这样检测的时间间隔，从用于开始解调的定时模式的记录区域的前沿和尾边检测到的信号的时移; 并且信息被稳定地检测为没有抖动的时序数据。