公开(公告)号：US07227818B1

公开(公告)日：2007-06-05

申请号：US08436490

申请日：1995-05-08

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

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

IPC: G11B7/00

CPC classification number: G11B7/0945 ,  G11B7/0062 ,  G11B7/00736 ,  G11B7/0079 ,  G11B7/094 ,  G11B7/1267 ,  G11B11/1053 ,  G11B11/10576 ,  G11B11/10595

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20050041316A1

公开(公告)日：2005-02-24

申请号：US10914243

申请日：2004-08-10

Applicant: Takatoshi Kato ,  Takushi Nishiya ,  Hideyuki Yamakawa ,  Takashi Nara ,  Nobuaki Nakai ,  Hiroshi Ide ,  Shintaro Suzumura ,  Terumi Takashi

Inventor： Takatoshi Kato ,  Takushi Nishiya ,  Hideyuki Yamakawa ,  Takashi Nara ,  Nobuaki Nakai ,  Hiroshi Ide ,  Shintaro Suzumura ,  Terumi Takashi

IPC: G11B5/012 ,  G11B5/09 ,  G11B20/10 ,  G11B20/14 ,  G11B20/20

CPC classification number: G11B20/10009 ,  G11B5/012 ,  G11B5/09 ,  G11B20/1403

Abstract: In order to generate a sampling clock having a higher accuracy, a synchronous signal generating circuit is provided with a phase error detector, detecting a phase error of a read out signal digitized on the basis of FDTS algorithm, and a VCO, controlling an oscillation frequency on the basis of a phase error detected by the phase error detector, to generate a synchronous signal by the VCO. On the basis of the synchronous signal generated by the synchronous signal generating circuit, an ADC digitizes the read out signal. The digitized read out signal is then converted to binary data by a detection circuit.

公开(公告)号：US20050013058A1

公开(公告)日：2005-01-20

申请号：US10916450

申请日：2004-08-12

Applicant: Yuko Tsuchiya ,  Hiroyuki Hoshiya ,  Yoshiaki Kawato ,  Katsuro Watanabe ,  Hiroshi Ide

Inventor： Yuko Tsuchiya ,  Hiroyuki Hoshiya ,  Yoshiaki Kawato ,  Katsuro Watanabe ,  Hiroshi Ide

IPC: G11B5/31 ,  G11B5/127 ,  G11B5/265

CPC classification number: G11B5/3116 ,  G11B5/1278 ,  G11B5/2652 ,  G11B5/3146 ,  G11B5/315

Abstract: Provided is a thin film single pole head for perpendicular magnetic recording, which has a structure offering a high formatted volume, easy servo, difficulty of influencing a recording pattern on a medium, and capability of shortening processing time. This thin film single pole head for perpendicular magnetic recording is formed on a reproducing head composed of a pair of shield layers formed on a substrate, and a reproducing element formed therebetween. A structure is provided, where an auxiliary pole is not disposed between the reproducing element of the reproducing head and the main pole of a recording head when seen from a surface facing to recording media.

Abstract translation: 提供一种用于垂直磁记录的薄膜单极头，其具有提供高格式化体积，容易伺服，难以影响介质上的记录图案的结构以及缩短处理时间的能力的结构。 用于垂直磁记录的这种薄膜单极头形成在由形成在基板上的一对屏蔽层和由它们之间形成的再现元件构成的再现头上。 提供了一种结构，其中当从面向记录介质的表面看时，辅助极不设置在再现头的再现元件和记录头的主极之间。

公开(公告)号：US06657805B2

公开(公告)日：2003-12-02

申请号：US09944205

申请日：2001-09-04

Applicant: Yasutaka Nishida ,  Takehiko Hamaguchi ,  Hisashi Takano ,  Hiroshi Ide ,  Hideki Sawaguchi ,  Futoshi Tomiyama

Inventor： Yasutaka Nishida ,  Takehiko Hamaguchi ,  Hisashi Takano ,  Hiroshi Ide ,  Hideki Sawaguchi ,  Futoshi Tomiyama

IPC: G11B1504

CPC classification number: G11B19/04 ,  G11B5/596

Abstract: When the amount of position error PE of a magnetic head meets the condition of Ewf>PE>=Eww for two threshold values Ewf and Eww meeting Ewf>Eww, the track is registered in the track information table as a track requiring rewrite and the tracks on both sides neighboring to the track are temporarily write-inhibited. The data of the track is rewritten on another track later so as to maintain the data. By doing this, the offtrack of the recording track can be made smaller without sacrifice of the access speed and the occurrence probability of write fault can be reduced. Furthermore, the reliability of a magnetic disk apparatus can be improved.

公开(公告)号：US5732061A

公开(公告)日：1998-03-24

申请号：US731243

申请日：1996-10-11

Applicant: Fumiyoshi Kirino ,  Takeshi Maeda ,  Hiroshi Ide ,  Toshimitsu Kaku ,  Seiichi Mita ,  Kazuo Shigematsu ,  Tsuyoshi Toda

Inventor： Fumiyoshi Kirino ,  Takeshi Maeda ,  Hiroshi Ide ,  Toshimitsu Kaku ,  Seiichi Mita ,  Kazuo Shigematsu ,  Tsuyoshi Toda

IPC: G11B7/0045 ,  G11B7/013 ,  G11B7/125 ,  G11B11/105 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G11B7/00

CPC classification number: G11B7/126 ,  G11B11/1053 ,  G11B11/10595 ,  G11B20/10009 ,  G11B20/10212 ,  G11B20/1816 ,  G11B7/0045 ,  G11B7/1267 ,  G11B11/10506 ,  G11B11/10508 ,  G11B20/1258 ,  G11B7/24085

Abstract: In a write control method on an optical recording, at least one shift amount selected from the defocus amount of a laser beam on a recording medium, the shift amount of a recording position on a recording track and the shift amount of laser power during recording is controlled such that the selected amount falls within a predetermined range. Subsequently, a trial signal is trially recorded at a plurality of trial zones on the recording medium by using a laser power value as a parameter. The recorded trial signal is read and a difference .DELTA.V between center levels of a highest density waveform and a lowest density waveform is detected. In connection with each trial zone, the laser power value when a reading trial signal which makes the difference .DELTA.V minimum is recorded is defined as an optimum recording power value. Regular data is recorded at a predetermined storage area on the recording medium by using an optimum laser power value determined in connection with a trial zone closest to the predetermined storage area.

Abstract translation: 在光学记录中的写入控制方法中，从记录介质上的激光束的散焦量，记录轨道上的记录位置的偏移量和记录期间的激光功率的移动量选择的至少一个偏移量是 被控制使得所选择的量落在预定范围内。 随后，通过使用激光功率值作为参数，在记录介质上的多个试验区上试用信号。 读取记录的试验信号，并检测最高密度波形的中心水平和最低密度波形之间的差ΔTA。 结合每个试验区域，当记录使DELTA V最小值的读取试验信号被记录时的激光功率值被定义为最佳记录功率值。 通过使用与最接近预定存储区域的试验区域确定的最佳激光功率值，将正常数据记录在记录介质上的预定存储区域。

公开(公告)号：US5553051A

公开(公告)日：1996-09-03

申请号：US402304

申请日：1995-03-10

Applicant: Hisataka Sugiyama ,  Takeshi Maeda ,  Hiroshi Ide ,  Kazuo Shigematsu ,  Masaru Ito

Inventor： Hisataka Sugiyama ,  Takeshi Maeda ,  Hiroshi Ide ,  Kazuo Shigematsu ,  Masaru Ito

IPC: G11B7/0045 ,  G11B7/007 ,  G11B7/09 ,  G11B7/26 ,  G11B7/00

CPC classification number: G11B7/261 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/24079 ,  G11B7/00451 ,  G11B7/00454

Abstract: An optical recording medium on which information is recorded by irradiating the medium with a light spot to cause a characteristic change of an actual reflection factor, the optical recording medium including grooves of different optical depths which extend in a direction in which the light spot is moved relative to the medium and which are alternately and periodically formed in a direction perpendicular to the relative movement direction of the light spot so that a plurality of grooves thereof can be covered by the light spot, and mark recording regions provided on the flat surfaces between the grooves, the pitch of the flat surfaces between the grooves being selected to be substantially half the diameter of the light spot, thus increasing the recording density and preventing the cross-talk. A method and apparatus for reproducing the information recorded on the medium are provided. Of the reflected and diffracted light distribution obtained by irradiating the light spot on the optical recording medium, the intensity change of the 0-order and third-order interference regions on the shallow groove's side are detected in the form of electrical signals, and information signals corresponding to mark are reproduced on the basis of the detected signals.

Abstract translation: 一种通过用光点照射介质来记录信息以引起实际反射因子的特征变化的光学记录介质，所述光学记录介质包括在光点移动的方向上延伸的不同光学深度的凹槽 相对于介质，并且在垂直于光点的相对移动方向的方向上交替地周期性地形成，使得其多个凹槽可以被光点覆盖，并且标记设置在光斑之间的平坦表面上的记录区域 槽之间的平坦表面的间距被选择为基本上是光点直径的一半，从而增加了记录密度并防止串扰。 提供了用于再现记录在介质上的信息的方法和装置。 在通过在光记录介质上照射光点而获得的反射和衍射光分布中，以浅沟槽侧的0级和3级干涉区域的强度变化以电信号的形式被检测，信息信号 基于检测到的信号再现对应于标记的标记。

公开(公告)号：US5151924A

公开(公告)日：1992-09-29

申请号：US454406

申请日：1989-12-21

Applicant: Seiichi Mita ,  Morishi Izumita ,  Hiroshi Ide ,  Nobukazu Doi ,  Yoshinori Okada ,  Yasuo Inagaki

Inventor： Seiichi Mita ,  Morishi Izumita ,  Hiroshi Ide ,  Nobukazu Doi ,  Yoshinori Okada ,  Yasuo Inagaki

IPC: G11B5/09 ,  G11B20/10 ,  H03H15/00 ,  H04B3/06 ,  H04L25/03 ,  H04N5/926 ,  H04N5/93

CPC classification number: H04L25/03038 ,  G11B20/10009 ,  H04N5/926 ,  H04N5/93

Abstract: An automatic equalization apparatus useful for supplying an output signal of a transversal filter simultaneously to two juxtaposed comparators, one of the two comparators performing signal identification, the other of the two comparators detecting an equalization error with the reference level changed, and extracting data from resultant two kinds of data trains by taking at least (N-1)/2+1 bits as the unit, N being the number of taps of the transversal filter, performing correlation computation, and setting tap coefficients of the transversal filter on the basis of the resultant accumulated value.

Abstract translation: 一种自动均衡装置，用于同时向两个并置的比较器提供横向滤波器的输出信号，两个比较器之一执行信号识别，两个比较器中的另一个比较器检测参考电平改变的均衡误差，并从结果中提取数据 通过以至少（N-1）/ 2 + 1位为单位，N为横向滤波器的抽头数，执行相关计算，以及基于横向滤波器的抽头系数设置两种数据串 产生累计值。

公开(公告)号：US4537855A

公开(公告)日：1985-08-27

申请号：US540868

申请日：1983-10-11

Applicant: Hiroshi Ide

Inventor： Hiroshi Ide

IPC: C08F290/12 ,  G03F7/027 ,  G03F7/038 ,  G03C1/68

CPC classification number: G03F7/0388 ,  C08F290/12 ,  G03F7/038 ,  Y10S430/111

Abstract: A photopolymerizable photosensitive composition characterized by comprising a photopolymerizable photosensitive resin having polyfunctional ethylenically unsaturated groups in the side chains or end groups thereof, and a photopolymerization initiator.

Abstract translation: 一种光聚合性感光性组合物，其特征在于，在侧链或端基具有含有多官能烯键式不饱和基团的光聚合性感光性树脂和光聚合引发剂。

公开(公告)号：US07057838B2

公开(公告)日：2006-06-06

申请号：US10407209

申请日：2003-04-07

Applicant: Takehiko Hamaguchi ,  Atsushi Nakamura ,  Yasutaka Nishida ,  Hisashi Takano ,  Yohji Maruyama ,  Hiroshi Ide ,  Hideki Sawaguchi ,  Futoshi Tomiyama

Inventor： Takehiko Hamaguchi ,  Atsushi Nakamura ,  Yasutaka Nishida ,  Hisashi Takano ,  Yohji Maruyama ,  Hiroshi Ide ,  Hideki Sawaguchi ,  Futoshi Tomiyama

IPC: G11B5/02

CPC classification number: G11B5/012 ,  G11B5/4886 ,  G11B27/02

Abstract: In the present invention, by making the width of the write element larger than the track pitch and securing a write magnetic field strong enough to reverse the magnetization of the magnetic layer, and further by writing while shifting a write head comprising the write element, a magnetic disk drive, of which the track width is narrower than the write element width, and the storage capacity is large, is realized.

Abstract translation: 在本发明中，通过使写入元件的宽度大于轨道间距，并且确保写入磁场足够强以反转磁性层的磁化，并且进一步通过在包括写入元件的写入头的移位的同时进行写入， 磁盘驱动器，其轨道宽度比写入元件宽度窄，并且存储容量大。

公开(公告)号：US06980385B2

公开(公告)日：2005-12-27

申请号：US10914243

申请日：2004-08-10

Applicant: Takatoshi Kato ,  Takushi Nishiya ,  Hideyuki Yamakawa ,  Takashi Nara ,  Nobuaki Nakai ,  Hiroshi Ide ,  Shintaro Suzumura ,  Terumi Takashi

Inventor： Takatoshi Kato ,  Takushi Nishiya ,  Hideyuki Yamakawa ,  Takashi Nara ,  Nobuaki Nakai ,  Hiroshi Ide ,  Shintaro Suzumura ,  Terumi Takashi

IPC: G11B5/012 ,  G11B5/09 ,  G11B20/10 ,  G11B20/14

CPC classification number: G11B20/10009 ,  G11B5/012 ,  G11B5/09 ,  G11B20/1403

Abstract: In order to generate a sampling clock having a higher accuracy, a synchronous signal generating circuit is provided with a phase error detector, detecting a phase error of a read out signal digitized on the basis of FDTS algorithm, and a VCO, controlling an oscillation frequency on the basis of a phase error detected by the phase error detector, to generate a synchronous signal by the VCO. On the basis of the synchronous signal generated by the synchronous signal generating circuit, an ADC digitizes the read out signal. The digitized read out signal is then converted to binary data by a detection circuit.

Abstract translation: 为了产生具有更高精度的采样时钟，同步信号发生电路设置有相位误差检测器，检测基于FDTS算法数字化的读出信号的相位误差和控制振荡频率的VCO 基于由相位误差检测器检测到的相位误差，由VCO产生同步信号。 基于由同步信号发生电路产生的同步信号，ADC对读出的信号进行数字化。 然后，数字化读出信号由检测电路转换成二进制数据。