公开(公告)号：US06493297B1

公开(公告)日：2002-12-10

申请号：US08056812

申请日：1993-05-04

申请人： Soichi Isono ,  Satoshi Kawamura ,  Kiyoshi Honda ,  Toshimitsu Kaku ,  Hitoshi Komatsu ,  Yuji Yamane ,  Yasushi Fukuda ,  Toshio Niihara ,  Hiroshi Ide

发明人： Soichi Isono ,  Satoshi Kawamura ,  Kiyoshi Honda ,  Toshimitsu Kaku ,  Hitoshi Komatsu ,  Yuji Yamane ,  Yasushi Fukuda ,  Toshio Niihara ,  Hiroshi Ide

IPC分类号： G11B7095

CPC分类号： G11B7/08505 ,  G11B7/14

摘要： Multibeam optical disk record and reproduction apparatus and method, in which at least two light beams generated are concentrated in different positions of on recording tracks of a recording medium to record or reproduce data to or from the recording medium on the different positions at the same time. The light beams are moved independently of each other across the recording tracks so that any one light beam is movable during the recording or reproducing of data by another light beam. This allows parallel recording/reproducing with a plurality of light beams without producing areas unaccessed due to the jumps of the light beams.

摘要翻译： 多光束光盘记录和再现装置和方法，其中产生的至少两个光束集中在记录介质的记录轨道上的不同位置，以在同一时间在不同位置记录或从记录介质再现数据 。 光束在记录轨道之间彼此独立地移动，使得任何一个光束在由另一个光束记录或再现数据期间是可移动的。 这允许使用多个光束的并行记录/再现，而不会由于光束的跳跃而产生不能被占用的区域。

公开(公告)号：US6088307A

公开(公告)日：2000-07-11

申请号：US40405

申请日：1998-03-18

申请人： Tetsuya Fushimi ,  Toshimitsu Kaku ,  Tetsuya Ikeda ,  Toshiaki Ishibashi ,  Kazuo Shigematsu

发明人： Tetsuya Fushimi ,  Toshimitsu Kaku ,  Tetsuya Ikeda ,  Toshiaki Ishibashi ,  Kazuo Shigematsu

IPC分类号： G11B7/0037 ,  G11B7/007 ,  G11B7/013 ,  G11B20/10 ,  G11B20/12 ,  G11B20/14 ,  G11B27/19 ,  G11B27/30 ,  G11B7/00

CPC分类号： G11B27/3027 ,  G11B20/10 ,  G11B20/1403 ,  G11B27/19 ,  G11B7/00375 ,  G11B20/1217 ,  G11B20/1258 ,  G11B7/24082 ,  G11B7/24085

摘要： In a wobble signal detecting circuit provided by the present invention, a wobble signal is converted into binary data before being supplied to a PLL circuit by way of a polarity switching circuit and a clock switching circuit. The PLL circuit outputs a recording/playback timing generation clock signal. The frequency of the recording/playback timing generation clock signal is divided by a frequency dividing circuit before being fed back to the PLL circuit. A difference in phase between the wobble signal and the feedback signal is detected by a phase inversion detecting circuit and, if the difference in phase exceeds a phase difference determined in advance, the phase inversion detecting circuit generates a polarity switching signal for switching the polarity of the wobble signal. The polarity switching signal is used to invert the polarity of the polarity switching circuit.

摘要翻译： 在本发明提供的摆动信号检测电路中，通过极性切换电路和时钟切换电路将摆动信号转换成二进制数据，然后再提供给PLL电路。 PLL电路输出记录/重放定时产生时钟信号。 在反馈到PLL电路之前，记录/重放定时产生时钟信号的频率被分频电路分压。 摆动信号和反馈信号之间的相位差由相位反转检测电路检测，如果相位差超过预先确定的相位差，则相位反转检测电路产生极性切换信号，用于切换 摆动信号。 极性切换信号用于反转极性切换电路的极性。

公开(公告)号：US5339319A

公开(公告)日：1994-08-16

申请号：US724716

申请日：1991-07-02

申请人： Yuji Yamane ,  Toshimitsu Kaku ,  Yasushi Fukuda ,  Hitoshi Komatsu ,  Nobuhiro Matsumura ,  Shigenori Okamine ,  Kiyoshi Matsumoto ,  Soichi Isono ,  Kunihiko Kizaki

发明人： Yuji Yamane ,  Toshimitsu Kaku ,  Yasushi Fukuda ,  Hitoshi Komatsu ,  Nobuhiro Matsumura ,  Shigenori Okamine ,  Kiyoshi Matsumoto ,  Soichi Isono ,  Kunihiko Kizaki

IPC分类号： G11B20/10 ,  G06F11/20 ,  G11B7/004 ,  G11B19/02 ,  G11B20/12 ,  G11B20/18 ,  G06F11/00 ,  G11B7/13

CPC分类号： G11B20/1883 ,  G11B19/02 ,  G11B7/004 ,  G11B2220/20

摘要： In a rotary type storage apparatus and a control method thereof, a plurality of concentric or spiral information tracks are set and also each of the plural information tracks is subdivided into a plurality of sectors along a circumferential direction, which constitute a plurality of information recording planes. Also, in this apparatus and method, there are provided a plurality of read/write heads employed at each of the information recording planes and accessible to the information tracks, and also a head drive mechanism for positioning these plural read/write heads to the information tracks. At least one of the plural information recording planes corresponds to such a recording plane where a substitution information track has been set, on which a substitution sector corresponding to a failed sector present at another information recording plane is recorded.

摘要翻译： 在旋转式存储装置及其控制方法中，设置多个同心或螺旋信息轨迹，并且将多个信息轨道中的每一个沿周向细分为多个扇区，构成多个信息记录平面 。 此外，在该装置和方法中，提供了在信息记录平面中的每个信息记录平面上使用的多个读/写头，以及用于将这些多个读/写头定位到信息的头驱动机构 轨道 多个信息记录面中的至少一个对应于已经设置了替代信息轨道的记录面，在该记录面上记录了与另一信息记录面上存在的故障扇区对应的替代扇区。

公开(公告)号：US4866687A

公开(公告)日：1989-09-12

申请号：US240487

申请日：1988-09-06

申请人： Masuo Kasai ,  Takeshi Maeda ,  Kazuo Shigematsu ,  Toshimitsu Kaku ,  Masahiro Takasago

发明人： Masuo Kasai ,  Takeshi Maeda ,  Kazuo Shigematsu ,  Toshimitsu Kaku ,  Masahiro Takasago

IPC分类号： G11B7/085 ,  G11B7/095

CPC分类号： G11B7/08588 ,  G11B7/08517 ,  G11B7/08541 ,  G11B7/0953 ,  Y10S358/907

摘要： An optical disk storage access method using a fine and coarse actuators for positioning a light spot to an intended track on the disk, wherein a pulse is generated each time the light spot has traversed a track, the pulses are counted to determine the distance from the current spot position to a target track, the fine actuator is activated depending on the measured distance, and the fine and coarse actuators are operated in unison so that the light spot is positioned to the target track.

摘要翻译： 一种光盘存储访问方法，使用精细和粗略的致动器将光点定位到盘上的预期轨道，其中每当光点已经穿过轨道时产生脉冲，则脉冲被计数以确定距离 当前光点位置到目标轨道，精细致动器根据测量的距离被激活，并且精细和粗略的致动器被一致地操作，使得光点被定位到目标轨道。

公开(公告)号：US4622564A

公开(公告)日：1986-11-11

申请号：US681690

申请日：1984-12-14

申请人： Toshimitsu Kaku ,  Takeshi Nakao ,  Yoshito Tsunoda

发明人： Toshimitsu Kaku ,  Takeshi Nakao ,  Yoshito Tsunoda

IPC分类号： G11B7/0055 ,  G11B7/09 ,  G11B7/125 ,  G11B20/18 ,  G11B27/36 ,  G01D15/06 ,  G01D9/42

CPC分类号： G11B7/125 ,  G11B27/36 ,  G11B7/0055 ,  G11B7/0901 ,  G11B20/1879

摘要： In an optical information recording apparatus in which a plurality of light beams are focused on a disc to form a write/read spot or an erase spot, the position of the light spots on a track of the disc is detected to control the distance between the light spots or the length of the light spots, so that even when the positions at which the light spots are formed differ in the radial direction of the disc, uniform and accurate write/read/erase of information can be effected irrespective of the light spot positions.

摘要翻译： 在其中多个光束聚焦在盘上以形成写入/读取点或擦除点的光学信息记录装置中，检测光盘的轨道上的位置，以控制光盘之间的距离 光点或光斑的长度，使得即使形成光点的位置在盘的径向方向上不同，可以实现信息的均匀和准确的写入/读取/擦除，而不管光点如何 职位

公开(公告)号：US4532522A

公开(公告)日：1985-07-30

申请号：US408678

申请日：1982-08-16

申请人： Yoshito Tsunoda ,  Takeshi Maeda ,  Shigeru Nakamura ,  Toshimitsu Kaku

发明人： Yoshito Tsunoda ,  Takeshi Maeda ,  Shigeru Nakamura ,  Toshimitsu Kaku

IPC分类号： G02B27/42 ,  G11B7/00 ,  G11B7/004 ,  G11B7/08 ,  G11B7/09 ,  G11B7/095 ,  G11B7/125 ,  G11B21/10

CPC分类号： G11B7/09 ,  G11B7/0903 ,  G11B7/125

摘要： An optical recording apparatus wherein in front and rear of a first light spot for recording predetermined information along a guide groove provided in a recording medium beforehand, two second light spots and two third light spots are arranged along the guide groove and in a manner to mutually deviate from the center of the guide groove; the second light spots are arranged in an area with no information recorded therein, while the third light spots are arranged in an area with the information recorded therein; and the position of the first light spot is controlled on the basis of the difference between the quantities of light of the second light spots and the difference between the quantities of light of the third light spots, so as to track the information.

摘要翻译： 一种光学记录装置，其特征在于，在预先在设置于记录介质中的引导槽记录预定信息的第一光点的前方和后方，沿引导槽配置两个第二光点和两个第三光点， 偏离导槽的中心; 第二光点被布置在没有记录信息的区域中，而第三光点被布置在其中记录有信息的区域中; 并且基于第二光点的光量与第三光点的光量之差的差来控制第一光点的位置，以便跟踪信息。

公开(公告)号：US4525826A

公开(公告)日：1985-06-25

申请号：US402234

申请日：1982-07-27

申请人： Shigeru Nakamura ,  Yoshito Tsunoda ,  Kazuo Shigematsu ,  Toshimitsu Kaku ,  Takeshi Maeda ,  Tsuyoshi Kato

发明人： Shigeru Nakamura ,  Yoshito Tsunoda ,  Kazuo Shigematsu ,  Toshimitsu Kaku ,  Takeshi Maeda ,  Tsuyoshi Kato

IPC分类号： G01B11/00 ,  G11B7/09 ,  G11B7/095 ,  G11B7/12 ,  G11B7/13 ,  G11B7/00

CPC分类号： G11B7/0901 ,  G11B7/09 ,  G11B7/0953 ,  G11B7/12 ,  G11B7/13

摘要： In an optical information processor such as an optical disc apparatus, when a light beam is irradiated to a plurality of tracks on an information recording medium, the plurality of tracks act as a diffraction grating. Areas in which light receiving parts of a light detector are arranged are determined by a track pitch, a wavelength and a numerical aperture of a condenser lens so that the light detector detects only a change in a light intensity due to an interference between a 0-order diffracted light ray and a 1-order diffracted light ray.

摘要翻译： 在诸如光盘装置的光学信息处理器中，当光束照射到信息记录介质上的多个轨道时，多个轨道用作衍射光栅。 通过光圈间距，聚光透镜的波长和数值孔径确定其中布置有光检测器的光接收部分的区域，使得光检测器仅检测由于0- 1级衍射光线和1级衍射光线。

公开(公告)号：US07746748B2

公开(公告)日：2010-06-29

申请号：US11947974

申请日：2007-11-30

申请人： Toshimitsu Kaku ,  Kazuhide Hamada

发明人： Toshimitsu Kaku ,  Kazuhide Hamada

IPC分类号： G11B7/00

CPC分类号： G11B7/0953 ,  G11B7/0941 ,  G11B7/126

摘要： Due to the axial runout of an optical disc, a frequency of a high-frequency current to be superimposed onto a DC current could not be maintained. In order to solve the problem described above, a drive signal is generated by superimposing a high-frequency signal onto a DC current, the drive signal is applied to a laser beam light source, thereby the light source is driven; and a servo signal at a signal level corresponding to a defocus amount of the laser beam relative to the surface of the optical disc is generated based on a reflected light of the laser beam from the recording surface of the optical disc, and a low-frequency component of the servo signal is extracted, and thereby the frequency of the high-frequency signal to be superimposed onto the DC current in the light source driver is controlled based on the low-frequency component of the servo signal.

摘要翻译： 由于光盘的轴向跳动，不能保持叠加在直流电流上的高频电流的频率。 为了解决上述问题，通过将高频信号叠加在直流电流上来产生驱动信号，驱动信号被施加到激光束光源，从而驱动光源; 并且基于来自光盘的记录表面的激光束的反射光产生与激光束相对于光盘表面的散焦量对应的信号电平的伺服信号，并且低频 提取伺服信号的分量，从而基于伺服信号的低频分量来控制要叠加在光源驱动器中的DC电流上的高频信号的频率。

公开(公告)号：US20070286047A1

公开(公告)日：2007-12-13

申请号：US11761399

申请日：2007-06-12

申请人： Hiroyuki Minemura ,  Tsuyoshi Toda ,  Toshimitsu Kaku

发明人： Hiroyuki Minemura ,  Tsuyoshi Toda ,  Toshimitsu Kaku

IPC分类号： G11B7/0045

CPC分类号： G11B7/00456 ,  G11B7/1267

摘要： Pulses modulated between the erase power and the bottom power are used instead of cooling pulses for an optical disk medium that needs a write strategy with 4-valued power levels. Consequently, pulse instruction lines for the cooling pulses, power level instruction lines, and corresponding current source within the laser driver can be omitted. Decrease in size and lower power consumption can be accomplished.

摘要翻译： 使用在擦除功率和底部功率之间调制的脉冲来代替需要具有4值功率电平的写入策略的光盘介质的冷却脉冲。 因此，可以省略用于冷却脉冲，功率电平指令线和激光驱动器内的对应电流源的脉冲指令线。 可以实现尺寸减小和功耗降低。

公开(公告)号：US07227818B1

公开(公告)日：2007-06-05

申请号：US08436490

申请日：1995-05-08

申请人： Tsuyoshi Toda ,  Takeshi Maeda ,  Fumio Kugiya ,  Hiroshi Ide ,  Hiroyuki Tsuchinaga ,  Fumiyoshi Kirino ,  Toshimitsu Kaku ,  Kazuo Shigematsu

发明人： Tsuyoshi Toda ,  Takeshi Maeda ,  Fumio Kugiya ,  Hiroshi Ide ,  Hiroyuki Tsuchinaga ,  Fumiyoshi Kirino ,  Toshimitsu Kaku ,  Kazuo Shigematsu

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/0062 ,  G11B7/00736 ,  G11B7/0079 ,  G11B7/094 ,  G11B7/1267 ,  G11B11/1053 ,  G11B11/10576 ,  G11B11/10595

摘要： A method of recording data into a recording medium by forming a recording region which is physically different from the nonrecorded portions is disclosed. The optical data recording/reproducing method includes a first trial writing operation in which trial writing data are recorded into the recording medium while changing the recording power conditions, the recorded trial writing data are reproduced, and the reproduced trial writing data are evaluated to set an optimum recording power. The method also includes a second trial writing operation in which trial writing data are recorded into the recording medium while changing the servo conditions, the recorded trial writing data are reproduced, and the reproduced trial writing data are evaluated to set optimum servo conditions.

摘要翻译： 公开了一种通过形成与非记录部分物理上不同的记录区域将数据记录到记录介质中的方法。 光学数据记录/再现方法包括在改变记录功率条件的同时将试写数据记录到记录介质中的第一试写操作，记录的试写数据被再现，再现的试写数据被评估 最佳记录功率 该方法还包括在改变伺服条件的同时将试写数据记录到记录介质中的第二试写操作，再现记录的试写数据，并评估再现的试写数据以设定最佳伺服条件。