公开(公告)号：US07660222B2

公开(公告)日：2010-02-09

申请号：US10557292

申请日：2004-05-19

申请人： Hiroshi Kayama ,  Kazuo Momoo

发明人： Hiroshi Kayama ,  Kazuo Momoo

IPC分类号： G11B7/00

CPC分类号： G11B7/1263

摘要： An optical disk apparatus including: a light source; an objective lens for converging light emitted from the light source toward an optical disk; a first photodetection device for detecting reflected light from the optical disk and outputting a first signal; a signal processing section for receiving the first signal and generating a signal containing information recorded on the optical disk; a second photodetection device for detecting a portion of the light emitted from the light source and outputting a second signal; a light source driving section for receiving the second signal, and based on the second signal, driving the light source so that output power of the light source equals a target value; and an amplitude fluctuation detection section for detecting an amplitude fluctuation amount of the second signal, and if the amplitude fluctuation amount exceeds a predetermined value, changing driving characteristics of the light source driving section.

摘要翻译： 一种光盘装置，包括：光源; 用于将从光源发射的光会聚到光盘的物镜; 第一光检测装置，用于检测来自光盘的反射光并输出第一信号; 信号处理部分，用于接收第一信号并产生包含记录在光盘上的信息的信号; 第二光检测装置，用于检测从光源发射的光的一部分并输出第二信号; 光源驱动部分，用于接收第二信号，并且基于第二信号驱动光源，使得光源的输出功率等于目标值; 以及振幅变动检测部，其检测第二信号的振幅变动量，如果振幅波动量超过规定值，则改变光源驱动部的驱动特性。

公开(公告)号：US20090010119A1

公开(公告)日：2009-01-08

申请号：US11908519

申请日：2006-03-20

申请人： Hiroshi Kayama ,  Hiroaki Matsumiya ,  Kazuo Momoo

发明人： Hiroshi Kayama ,  Hiroaki Matsumiya ,  Kazuo Momoo

IPC分类号： G11B5/58 ,  G11B5/09

CPC分类号： G11B7/094 ,  G11B7/0943 ,  G11B2007/0013

摘要： An optical disk apparatus according to the present invention includes: a rotation driving section on which an optical disk is to be mounted and which drives the optical disk so as to be rotated; a light source; an objective lens for converging light from the light source onto an optical disk mounted on the rotation driving section; a photodetector having at least two detection sections for detecting reflected light, from the optical disk, of the light; and an error signal generation section for deriving a difference signal and a sum signal of respective outputs from the two detection sections of the photodetector, adjusting an offset in at least the sum signal among the difference signal and the sum signal, and thereafter dividing the difference signal by the sum signal whose offset has been adjusted to generate a position error signal of the objective lens.

摘要翻译： 根据本发明的光盘装置包括：旋转驱动部，其上安装有光盘并驱动光盘以便旋转; 光源; 用于将来自光源的光聚光到安装在旋转驱动部上的光盘上的物镜; 光检测器，具有至少两个用于检测来自光盘的反射光的检测部分; 以及误差信号生成部，用于从光检测器的两个检测部分导出差分信号和各个输出的和信号，调整差分信号和和信号中的至少和信号中的偏移，然后除差 信号通过其偏移量被调整的和信号产生物镜的位置误差信号。

公开(公告)号：US20070297299A1

公开(公告)日：2007-12-27

申请号：US11812547

申请日：2007-06-20

申请人： Hiroshi Kayama ,  Kazuo Momoo

发明人： Hiroshi Kayama ,  Kazuo Momoo

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/00718

摘要： An optical disk apparatus includes: an optical pickup unit for reading out information recorded on an optical disk; a demodulation circuit for demodulating digital data from an output signal of the optical pickup unit; and a controller for performing a servo control based on the output signal of the optical pickup unit. When performing a focus/tracking control in a recess and a protrusion of a guide groove of the optical disk, the controller obtains a focus control gain difference between the recess and the protrusion by comparing focus offsets with respect to variations in amplitudes of signals from the optical disk for the recess and the protrusion, respectively.

摘要翻译： 一种光盘装置，包括：光拾取单元，用于读出记录在光盘上的信息; 解调电路，用于从光学拾取单元的输出信号中解调数字数据; 以及控制器，用于基于光学拾取单元的输出信号执行伺服控制。 当在光盘的凹槽和引导槽的凹部和突起中进行对焦/跟踪控制时，控制器通过将焦点偏移相对于来自所述凹槽的信号的振幅的变化进行比较来获得凹部和突起之间的聚焦控制增益差 用于凹部和突起的光盘。

公开(公告)号：US08537650B2

公开(公告)日：2013-09-17

申请号：US13609557

申请日：2012-09-11

申请人： Hiroshi Kayama ,  Kazuo Momoo

发明人： Hiroshi Kayama ,  Kazuo Momoo

IPC分类号： G11B7/00

CPC分类号： G11B7/00458 ,  G11B7/1353

摘要： An optical read/write apparatus as an embodiment of the present invention includes: a light-splitting element configured to split a light beam emitted from a light source into multiple light beams including a write beam and a read beam; an optical system configured to converge the write and read beams onto the same track on an optical storage medium; a photodetector including a light receiving element configured to detect the read beam reflected from the optical storage medium and output an electrical signal; and a divider configured to generate a read signal by dividing the signal detected by the light receiving element by a signal that represents a write modulated component and that is obtained by detecting a part of the light beam emitted from the light source.

摘要翻译： 作为本发明的实施例的光学读/写装置包括：分光元件，被配置为将从光源发射的光束分成包括写入光束和读取光束的多个光束; 光学系统，被配置为将写入和读取光束会聚到光学存储介质上的相同轨道上; 光检测器，其包括：光接收元件，被配置为检测从所述光存储介质反射的读出光束并输出电信号; 以及分频器，被配置为通过将由光接收元件检测的信号除以表示写入调制分量的信号并且通过检测从光源发射的光束的一部分而获得的信号来生成读取信号。

公开(公告)号：US08238213B2

公开(公告)日：2012-08-07

申请号：US12983963

申请日：2011-01-04

申请人： Hiroshi Kayama ,  Kazuo Momoo

发明人： Hiroshi Kayama ,  Kazuo Momoo

IPC分类号： G11B7/00

CPC分类号： G11B7/00456 ,  G11B7/00745

摘要： An optical disc drive according to the present invention can write information on an optical disc, which includes a substrate on which a number of pre-pits 2 have been formed on its tracks and a recording film that is supported on the substrate. The drive includes an optical pickup and a writing control section for controlling the optical pickup so that marks 3 are recorded so as to overlap with some of the pre-pits 2 on the tracks and for making the optical pickup irradiate the recording film with a writing light beam. The writing control section changes the interval of each pair of recorded marks that are adjacent to each other along the radius of the optical disc according to the optical power of the writing light beam. Thus, the optical disc drive of the present invention can record a mark on an optical disc on which pre-pits have already been formed even if the optical disc has a simplified structure.

摘要翻译： 根据本发明的光盘驱动器可以在光盘上写入信息，该光盘包括在其轨道上已经形成有多个预凹坑2的基板和被支撑在基板上的记录膜。 驱动器包括光学拾取器和写入控制部分，用于控制光学拾取器，使得标记3被记录为与轨道上的一些预制凹坑2重叠，并且使得光学拾取器以写入方式照射记录膜 光束。 写入控制部根据写入光束的光焦度来改变沿着光盘的半径彼此相邻的每对记录标记的间隔。 因此，本发明的光盘驱动器可以在已经形成预凹坑的光盘上记录标记，即使光盘具有简化的结构。

公开(公告)号：US08075994B2

公开(公告)日：2011-12-13

申请号：US12595713

申请日：2008-04-24

申请人： Kazuyuki Sakamoto ,  Tomoaki Suzuki ,  Hiroshi Kayama

发明人： Kazuyuki Sakamoto ,  Tomoaki Suzuki ,  Hiroshi Kayama

IPC分类号： D02G3/00

CPC分类号： D01F1/10 ,  D01F8/06 ,  D01F8/14 ,  Y10T428/2924 ,  Y10T428/2929 ,  Y10T428/2931

摘要： A thermal bonding conjugate fiber constituted from a first component comprising a polyester resin and a second component comprising a polyolefin resin with a melting point lower than that of the polyester resin by not less than 20° C., characterized in that a post-heat treatment bulk retention rate thereof is 20% or more when calculated by the following measurement method: Bulk retention rate=(H1 (mm)/H0 (mm))×100(%) (wherein H0 is the web height when a 0.1 g/cm2 load is applied to a web with a mass per unit area of 200 g/m2; and H1 is the web height after a heat treatment for 5 min at 145° C. when a 0.1 g/cm2 load is applied to that web).

摘要翻译： 一种热粘合复合纤维，其由包含聚酯树脂的第一组分和包含熔点低于聚酯树脂的聚烯烃树脂的第二组分构成，不低于20℃，其特征在于后热处理 通过以下测量方法计算，其保留率为20％以上：体积保留率=（H1（mm）/ H0（mm））×100（％）（其中，H0为0.1g / cm 2 负荷被施加到每单位面积质量为200g / m 2的幅材上; H1是当对该纸幅施加0.1g / cm 2的负荷时，在145℃下热处理5分钟后的纸幅高度）。

公开(公告)号：US20110299372A1

公开(公告)日：2011-12-08

申请号：US13201665

申请日：2010-12-17

申请人： Hiroshi Kayama ,  Kazuo Momoo

发明人： Hiroshi Kayama ,  Kazuo Momoo

IPC分类号： G11B7/007

CPC分类号： G11B7/24085 ,  G11B7/0045 ,  G11B7/0906 ,  G11B7/1267

摘要： An optical drive according to the present invention can write information on an optical disc, which includes a substrate on which a number of pre-pits (2) have been formed on its tracks (t1 to t8) and a recording film that is supported on the substrate. The optical drive includes an optical pickup, and a writing control section for controlling the optical pickup so that marks (3a, 3b) are recorded on the tracks (t1 to t8) so as to overlap with some of the pre-pits (2) and for making the optical pickup irradiate the recording film with a writing light beam. The recorded marks (3a, 3b) overlap with at least ten of the pre-pits (2).

摘要翻译： 根据本发明的光盘驱动器可以在光盘上写入信息，该光盘包括在其轨道（t1至t8）上已经形成有多个预凹坑（2）的基板和支撑在其上的记录膜 底物。 光驱包括光拾取器和用于控制光拾取器的写入控制部分，使得标记（3a，3b）被记录在轨道（t1至t8）上，以便与一些预凹坑（2）重叠， 并且用于使光学拾取器用写入光束照射记录膜。 记录标记（3a，3b）与至少十个预凹坑（2）重叠。

公开(公告)号：US20080277562A1

公开(公告)日：2008-11-13

申请号：US10595629

申请日：2005-04-14

申请人： Hiroshi Kayama ,  Kazuo Momoo ,  Yuuichi Takahashi

发明人： Hiroshi Kayama ,  Kazuo Momoo ,  Yuuichi Takahashi

IPC分类号： G02B27/64

CPC分类号： G11B7/0037 ,  G11B7/0908 ,  G11B23/40

摘要： Light emitted from alight source (5) is reflected by the reflection film of a polarized beam-splitter (6), passes through collimating lens (7) and a mirror (8) to reach a convergence lens (9). The convergence lens (9) forms a light spot on an information medium (1) having a visual information layer (4). Reflected light which is reflected by the visual information layer (4) passes through the convergence lens (9), the mirror (8), and the collimating lens (7), transmits through the reflection film of the polarized beam-splitter (6), passes through a half mirror (14) to reach a second light detector (13). The second light detector (13) detects an FE signal for the visual information layer (4) and feeds back the detected signal to an LPC circuit, thereby restricting power fluctuation due to surface deflection.

摘要翻译： 从光源（5）发射的光被偏振光分束器（6）的反射膜反射，通过准直透镜（7）和反射镜（8）到达会聚透镜（9）。 会聚透镜（9）在具有视觉信息层（4）的信息介质（1）上形成光斑。 由视觉信息层（4）反射的反射光通过会聚透镜（9），反射镜（8）和准直透镜（7）透射通过偏振分束器（6）的反射膜， 通过半反射镜（14）到达第二光检测器（13）。 第二光检测器（13）检测视觉信息层（4）的FE信号，并将检测到的信号反馈到LPC电路，从而限制由于表面偏转引起的功率波动。