公开(公告)号：US06496453B2

公开(公告)日：2002-12-17

申请号：US09817421

申请日：2001-03-26

申请人： Junichi Asada ,  Kenji Nagashima ,  Hiroshi Kayama ,  Youichi Saitoh ,  Seiji Nishiwaki

发明人： Junichi Asada ,  Kenji Nagashima ,  Hiroshi Kayama ,  Youichi Saitoh ,  Seiji Nishiwaki

IPC分类号： G11B700

CPC分类号： G11B7/1353 ,  G11B7/123 ,  G11B7/1275 ,  G11B7/1356 ,  G11B7/1359 ,  G11B7/1362 ,  G11B7/1365 ,  G11B7/1376 ,  G11B7/1395 ,  G11B7/1398 ,  G11B2007/0006

摘要： An optical pickup has a light source that emits a light beam having a far field pattern being elliptical in cross section; a collimator lens that converts the light beam from the light source into a substantially parallel light beam; a beam shaping element that performs beam shaping by changing a substantial aspect ratio of the far field pattern of the light beam from the collimator lens; light condensing means of condensing the light beam shaped by the beam shaping element on an optical information recording medium; and light detecting means of detecting a light beam reflected at the optical information recording medium. wherein the beam shaping element makes the cross section of the light beam having been shaped close to a circle by compressing the light beam substantially in a direction of a major axis of the elliptical cross section of the far field pattern, and reflects the light beam from the collimator lens to the light condensing means.

摘要翻译： 光拾取器具有发射具有横截面为椭圆形的远场图案的光束的光源;将来自光源的光束转换为基本上平行的光束的准直透镜;通过以下方式执行光束成形的光束整形元件 改变来自准直透镜的光束的远场图案的实质长宽比;将由光束整形元件成形的光束会聚在光信息记录介质上的聚光装置; 光检测装置，用于检测在光学信息记录介质处反射的光束。光束成形元件通过将光束基本上沿着长轴的方向压缩而使光束的截面形状接近圆形， 远场图案的椭圆截面，并将来自准直透镜的光束反射到聚光装置。

公开(公告)号：US20100143717A1

公开(公告)日：2010-06-10

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： D02G3/04 ,  D01D5/22

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)2/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：体积保持率=（H1（mm）2 / H0（mm））×100（％）（其中，H0为0.1g / cm2的负载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的负载时，在145℃下热处理5分钟后的纸幅高度） 。

公开(公告)号：US20060262672A1

公开(公告)日：2006-11-23

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：US08218413B2

公开(公告)日：2012-07-10

申请号：US12984715

申请日：2011-01-05

申请人： Hiroshi Kayama ,  Kazuo Momoo

发明人： Hiroshi Kayama ,  Kazuo Momoo

IPC分类号： G11B7/00

CPC分类号： G11B7/0079 ,  G11B7/24085

摘要： An optical disc drive according to the present invention writes information on an optical disc, which includes a substrate on which a number of pre-pits have been formed on its tracks and a recording film that is supported on the substrate. The optical disc drive includes a writing control section for instructing an optical pickup to record marks on the tracks by irradiating the recording film with a writing light beam. In accordance with information that defines, on the tracks, recordable areas Aa1 through Aa4 where the marks are recordable and pre-pit reading areas Ab1 through Ab4 where no marks are recordable, the writing control section controls the optical pickup so that the marks are recorded on at least some of the recordable areas. On the tracks on which the marks are recorded, each recordable area is shorter than any of the pre-pit reading areas.

摘要翻译： 根据本发明的光盘驱动器将信息写入到光盘上，该光盘包括在其轨道上形成有多个预凹坑的基板和支撑在基板上的记录膜。 光盘驱动器包括写入控制部分，用于通过用写入光束照射记录膜来指示光学拾取器在轨道上记录标记。 根据在轨迹上定义可记录标记的可记录区域Aa1至Aa4的信息，以及不记录标记的预凹坑读取区域Ab1至Ab4，写入控制部分控制光学拾取器，以便记录标记 至少在一些可记录区域。 在记录标记的轨道上，每个可记录区域比任何预读点区域短。

公开(公告)号：US07948839B2

公开(公告)日：2011-05-24

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：US5963523A

公开(公告)日：1999-10-05

申请号：US800276

申请日：1997-02-13

申请人： Hiroshi Kayama ,  Ryoichi Imanaka ,  Tetsuo Saimi

发明人： Hiroshi Kayama ,  Ryoichi Imanaka ,  Tetsuo Saimi

IPC分类号： G11B7/00 ,  G11B7/006 ,  G11B7/125 ,  G11B7/26 ,  G11B3/90

CPC分类号： G11B7/1275 ,  G11B2007/0006

摘要： In an optical recording and reproducing apparatus, two light sources such as a laser diode of different wavelengths from each other are provided, and photosensors receive the light emitted by the light sources and reflected by the optical recording medium. Before recording or reproduction is started, the type of optical recording medium having a different wavelength dependent reflectance is discriminated. Because two wavelengths are used, the difference of the outputs is large, and the type of the optical recording medium is discriminated reliably according to the outputs of the photosensors. Then, the operation of the apparatus is stabilized according to the type of the optical recording medium by optimizing the laser power, the gain of the controller, the revolution number of the medium or the like.

摘要翻译： 在光学记录和再现装置中，提供了诸如彼此不同波长的激光二极管的两个光源，并且光电传感器接收由光源发射并被光学记录介质反射的光。 在开始记录或再现之前，鉴别具有不同的波长相关反射率的光学记录介质的类型。 由于使用两个波长，所以输出的差异大，根据光电传感器的输出可以可靠地区分光记录介质的类型。 然后，通过优化激光功率，控制器的增益，介质的转数等，根据光学记录介质的类型来稳定设备的操作。

公开(公告)号：US08305854B2

公开(公告)日：2012-11-06

申请号：US12984721

申请日：2011-01-05

申请人： Hiroshi Kayama ,  Kazuo Momoo

发明人： Hiroshi Kayama ,  Kazuo Momoo

IPC分类号： G11B7/00

CPC分类号： G11B7/00745 ,  G11B7/00456 ,  G11B7/1267

摘要： An optical disc drive according to the present invention includes an optical pickup and a writing control section for instructing the optical pickup to record a mark, representing the information to be written, on the optical disc. In recording the mark on the optical disc, the writing control section instructs the optical pickup to irradiate the same area on the optical disc with a light beam a plurality of times so that the mark is recorded in that repeatedly irradiated area.

摘要翻译： 根据本发明的光盘驱动器包括光学拾取器和写入控制部分，用于指示光学拾取器将表示要写入的信息的标记记录在光盘上。 在光盘上记录标记时，写入控制部分指示光学拾取器用光束多次照射在光盘上的相同区域，使得标记被记录在该反复照射的区域中。

公开(公告)号：US5568690A

公开(公告)日：1996-10-29

申请号：US368883

申请日：1995-01-05

申请人： Hiroshi Kayama

发明人： Hiroshi Kayama

IPC分类号： B43L7/10 ,  B43L13/00

CPC分类号： B43L13/005 ,  B43L7/10

摘要： An improved drafting instrument is provided and consists of a base board and a slide member. The instrument is so constructed that various geometrical figures, such as squares, rectangles, right-angled isosceles triangles and regular triangles, are accurately drafted in the various dimensions between a minimum and maximum dimension without using conventional frame rules. The base board is provided with one or more openings, and guide rails along which the slide member is slid and positioned for drawing. By displacing the slide member along one of the guide rails and positioning against the guide rail, a figure having a desired dimension is formed and drafted.

摘要翻译： 提供了一种改进的牵伸装置，其由基板和滑动构件组成。 该仪器被构造成使得各种几何图形，例如正方形，矩形，直角等腰三角形和正三角形，在不使用常规框架规则的情况下，在最小尺寸和最大尺寸之间的各种尺寸中精确地绘制。 基板设置有一个或多个开口，以及滑动构件滑动并定位用于拉伸的导轨。 通过沿着导轨中的一个移动滑动构件并且抵靠导轨定位，形成具有期望尺寸的图形并将其拉出。

公开(公告)号：US08391124B2

公开(公告)日：2013-03-05

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： G11B7/00

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：US07830761B2

公开(公告)日：2010-11-09

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： G11B20/00

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。