专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20080084797A1 Optical head device and optical information device 有权
标题翻译：光头设备和光信息设备
公开(公告)号：US20080084797A1
公开(公告)日：2008-04-10
申请号：US11905923
申请日：2007-10-05
申请人： Kousei Sano , Takayuki Nagata , Hideki Aikoh , Joji Anzai , Fumitomo Yamasaki
发明人： Kousei Sano , Takayuki Nagata , Hideki Aikoh , Joji Anzai , Fumitomo Yamasaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/0901 , G11B7/131 , G11B7/1353 , G11B2007/0013
摘要： The present invention aims to generate an offset-free tracking signal and to realize a stable tracking control even if an optical disc is a multi-layer disc having three or more layers.Light receiving portions of a main region light receiving portion group is arranged between a projection line of a third dividing line on a photodetector and a projection line of a fourth dividing line on the photodetector by stray lights from information layers adjacent to the one, on which a light beam is focused, out of a plurality of information layers. Further, light receiving portions of a subregion light receiving portion group is arranged between a projection line of a first dividing line on a photodetector and a projection line of a second dividing line on the photodetector by the stray lights from the information layers adjacent to the one, on which a light beam is focused, out of the plurality of information layers.
摘要翻译：本发明的目标是产生无偏移跟踪信号，并且即使光盘是具有三层或更多层的多层盘也能实现稳定的跟踪控制。主区域光接收部分组的光接收部分布置在光电检测器上的第三分割线的投影线和光电检测器上的第四分割线的投影线之间，与来自与其相邻的信息层的杂散光在多个信息层中聚焦光束。此外，子区域光接收部分组的光接收部分被布置在光电检测器上的第一分割线的投影线和光电检测器上的第二分割线的投影线之间，在多个信息层中聚焦光束。

2. 发明授权

US07778140B2 Optical head device and optical information device 有权
标题翻译：光头设备和光信息设备
公开(公告)号：US07778140B2
公开(公告)日：2010-08-17
申请号：US11905923
申请日：2007-10-05
申请人： Kousei Sano , Takayuki Nagata , Hideki Aikoh , Joji Anzai , Fumitomo Yamasaki
发明人： Kousei Sano , Takayuki Nagata , Hideki Aikoh , Joji Anzai , Fumitomo Yamasaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/0901 , G11B7/131 , G11B7/1353 , G11B2007/0013
摘要： An offset-free tracking signal enables stable tracking control even if an optical disc is a multi-layer disc having three or more layers. Light receiving portions of a main region light receiving portion group are arranged between a projection line of a third dividing line on a photodetector and a projection line of a fourth dividing line on the photodetector by stray lights from information layers adjacent to the one, on which a light beam is focused, out of a plurality of information layers. Further, light receiving portions of a subregion light receiving portion group is arranged between a projection line of a first dividing line on a photodetector and a projection line of a second dividing line on the photodetector by the stray lights from the information layers adjacent to the one, on which a light beam is focused, out of the plurality of information layers.
摘要翻译：无偏移跟踪信号即使光盘是具有三层或更多层的多层盘也能实现稳定的跟踪控制。主区域光接收部分组的光接收部分布置在光电检测器上的第三分割线的投影线与光电检测器上的第四分割线的投影线之间，与来自与其相邻的信息层的杂散光在多个信息层中聚焦光束。此外，子区域光接收部分组的光接收部分被布置在光电检测器上的第一分割线的投影线和光电检测器上的第二分割线的投影线之间，在多个信息层中聚焦光束。

3. 发明申请

US20090040909A1 Optical head device and optical information device 审中-公开
标题翻译：光头设备和光信息设备
公开(公告)号：US20090040909A1
公开(公告)日：2009-02-12
申请号：US11918780
申请日：2006-04-20
申请人： Joji Anzai , Hideki Aikoh , Akihiro Arai , Hideki Nakata , Fumitomo Yamasaki , Yoshiaki Komma
发明人： Joji Anzai , Hideki Aikoh , Akihiro Arai , Hideki Nakata , Fumitomo Yamasaki , Yoshiaki Komma
IPC分类号： G11B7/135
CPC分类号： G11B7/1275 , G11B7/1356 , G11B2007/0006
摘要： An optical head device is provided with a light source 1 for emitting a plurality of lights having different wavelengths, an objective lens 31 for focusing a light spot on an optical disc 21, an objective lens 32 for focusing light spots on optical discs 22 to 24, and a prism 53 for splitting a laser light having a wavelength of 405 nm from the light source 1 into a transmitting light and a reflected light, introducing the reflected light to the objective lens 31 and the transmitting light to the objective lens 32, and introducing laser lights having wavelengths of 660 nm, 780 nm from the light source 1 to the objective lens 32.
摘要翻译：光头装置设置有用于发射具有不同波长的多个光的光源1，用于将光点聚焦在光盘21上的物镜31，用于将光点聚焦在光盘22至24上的物镜32 以及棱镜53，用于将来自光源1的具有405nm波长的激光分解成透射光和反射光，将反射光引导到物镜31和透射光到物镜32，以及将从光源1到物镜32的波长为660nm，780nm的激光引入。

4. 发明授权

US07773468B2 Optical head and optical information recorder/reproducer 有权
标题翻译：光头和光信息记录器/再现器
公开(公告)号：US07773468B2
公开(公告)日：2010-08-10
申请号：US11570821
申请日：2006-04-11
申请人： Fumitomo Yamasaki , Eishin Mori , Hideki Aikoh , Akihiro Arai , Joji Anzai
发明人： Fumitomo Yamasaki , Eishin Mori , Hideki Aikoh , Akihiro Arai , Joji Anzai
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/1369 , G11B7/1376 , G11B2007/0013
摘要： Fifth order spherical aberration in addition to third order spherical aberration for an optical information recording medium of which thickness of a light transmission layer changes greatly is corrected. An objective lens collects a laser beam emitted from a semiconductor laser on an optical information recording medium. A spherical aberration correcting portion corrects spherical aberration generated according to a thickness of the light transmission layer of the optical information recording medium, in which the spherical aberration correcting portion includes a collimator lens, a lens holder and a stepping motor for correcting the third order spherical aberration and a liquid crystal element and an applied voltage control portion for correcting the fifth order spherical aberration.
摘要翻译：校正光传输层的厚度变化较大的光信息记录介质的三阶球面像差的第五级球面像差。物镜将从半导体激光器发射的激光束收集在光学信息记录介质上。球面像差校正部分校正根据光学信息记录介质的光透射层的厚度产生的球面像差，其中球面像差校正部分包括准直透镜，透镜保持器和用于校正三阶球面的步进电机像差和用于校正五阶球面像差的液晶元件和施加电压控制部分。

5. 发明申请

US20070268806A1 Optical Head and Optical Information Recorder/Reproducer 有权
标题翻译：光头和光信息记录器/复制器
公开(公告)号：US20070268806A1
公开(公告)日：2007-11-22
申请号：US11570821
申请日：2006-04-11
申请人： Fumitomo Yamasaki , Eishin Mori , Hideki Aikoh , Akihiro Arai , Joji Anzai
发明人： Fumitomo Yamasaki , Eishin Mori , Hideki Aikoh , Akihiro Arai , Joji Anzai
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/1369 , G11B7/1376 , G11B2007/0013
摘要： Fifth order spherical aberration in addition to third order spherical aberration for an optical information recording medium of which thickness of a light transmission layer changes greatly is corrected. An objective lens collects a laser beam emitted from a semiconductor laser on an optical information recording medium. A spherical aberration correcting portion corrects spherical aberration generated according to a thickness of the light transmission layer of the optical information recording medium, in which the spherical aberration correcting portion includes a collimator lens, a lens holder and a stepping motor for correcting the third order spherical aberration and a liquid crystal element and an applied voltage control portion for correcting the fifth order spherical aberration.
摘要翻译：校正光传输层的厚度变化较大的光信息记录介质的三阶球面像差的第五级球面像差。物镜将从半导体激光器发射的激光束收集在光学信息记录介质上。球面像差校正部分校正根据光学信息记录介质的光透射层的厚度产生的球面像差，其中球面像差校正部分包括准直透镜，透镜保持器和用于校正三阶球面的步进电机像差和用于校正五阶球面像差的液晶元件和施加电压控制部分。

6. 发明申请

US20100128102A1 OPTICAL DISC LABEL PRINTER, THERMOSENSITIVE RECORDING PRINTER AND THERMOSENSITIVE RECORDING METHOD 有权
标题翻译：光盘标签打印机，热敏记录打印机和热敏记录方法
公开(公告)号：US20100128102A1
公开(公告)日：2010-05-27
申请号：US12597305
申请日：2008-04-21
申请人： Fumitomo Yamasaki , Joji Anzai , Naohiro Kimura , Takashi Nishihara
发明人： Fumitomo Yamasaki , Joji Anzai , Naohiro Kimura , Takashi Nishihara
IPC分类号： B41J2/435
CPC分类号： B41J2/32 , B41J2/471 , B41J2/475 , B41M5/26 , B41M2205/04
摘要： A thermosensitive recording printer is provided with semiconductor lasers 1a to 1c, a polygon mirror 7 for condensing laser light emitted from the semiconductor laser 1a to 1c as condensed spots on a recording medium 10 to perform scanning in a main scanning direction, and a control unit 9 for controlling the output of the laser light. If a ratio of a spot diameter D1 of the condensed spots in the main scanning direction and a spot diameter D2 in a sub scanning direction satisfy a relationship of D1/D2≦½ at the time of forming an image composed of a plurality of pixels on the recording medium 10 using laser light, high-speed thermosensitive recording and a recording method with an uncomplicated power control are realized without reducing the power density of the condensed spots.
摘要翻译：热敏记录打印机设置有半导体激光器1a至1c，用于将从半导体激光器1a至1c发射的激光聚焦到记录介质10上的聚光点的多面反射镜7，以在主扫描方向上执行扫描;以及控制单元 9用于控制激光的输出。如果在主扫描方向上的聚光点的光斑直径D1与副扫描方向上的光斑直径D2之间的比例满足D1 / D2＆nlE; 1/2时的关系，则形成由多个像素组成的图像时在不降低凝聚点的功率密度的情况下，实现使用激光的记录介质10，高速热敏记录和具有不复杂功率控制的记录方法。

7. 发明申请

US20070189130A1 Optical information device and information recording and reproduction device 审中-公开
标题翻译：光信息设备和信息记录和再现设备
公开(公告)号：US20070189130A1
公开(公告)日：2007-08-16
申请号：US10592641
申请日：2005-08-24
申请人： Joji Anzai , Shin-ichi Kadowaki , Fumitomo Yamasaki , Eishin Mori
发明人： Joji Anzai , Shin-ichi Kadowaki , Fumitomo Yamasaki , Eishin Mori
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/0901 , G11B7/0909 , G11B7/131 , G11B7/1353 , G11B2007/0013
摘要： Stable tracking control is achieved for an optical recording medium having a plurality of information recording planes. To achieve this, an optical information device comprises a light source for emitting a light beam, a focusing unit for converging the light beam emitted from the light source onto a predetermined information recording plane of an optical recording medium having a plurality of information recording planes, a beam splitting unit for splitting the light beam reflected by the optical recording medium, and a light detection unit having a light receiver that receives the light beam split by the beam splitting unit, for outputting a signal corresponding to the light intensity of the light beams received by the light receiver. A guide groove is formed on at least one of the information recording planes, and the light receiver is entirely disposed within in a map formed on the light detection unit by the light beam reflected by an information recording plane other than the predetermined information recording plane.
摘要翻译：对于具有多个信息记录平面的光记录介质，实现了稳定的跟踪控制。为了实现这一点，光信息装置包括用于发射光束的光源，用于将从光源发射的光束会聚到具有多个信息记录面的光记录介质的预定信息记录面上的聚焦单元，用于分离由光记录介质反射的光束的光束分离单元和具有接收由分束单元分离的光束的光接收器的光检测单元，用于输出对应于光束的光强度的信号由光接收器接收。引导槽形成在至少一个信息记录面上，并且光接收器被除了预定信息记录面之外的信息记录面所反射的光束完全设置在形成在光检测单元上的映射中。

8. 发明申请

US20080084798A1 Optical pick-up head, optical information apparatus, and optical information reproducing method 有权
公开(公告)号：US20080084798A1
公开(公告)日：2008-04-10
申请号：US11981366
申请日：2007-10-31
申请人： Shin-ichi Kadowaki , Kousei Sano , Akihiro Arai , Katsuhiko Yasuda , Tomotada Kamei , Hiroaki Yamamoto , Fumitomo Yamasaki
发明人： Shin-ichi Kadowaki , Kousei Sano , Akihiro Arai , Katsuhiko Yasuda , Tomotada Kamei , Hiroaki Yamamoto , Fumitomo Yamasaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/0901 , G11B7/0903 , G11B7/0941 , G11B7/0943 , G11B7/0948 , G11B7/131 , G11B7/133 , G11B7/1353 , G11B7/13927 , G11B2007/0013
摘要： An optical information apparatus of the present invention includes: an optical pick-up head including: a light source; a diffraction unit; a condensing unit; a beam splitter; a photodetector; and a tracking error signal generator. An optical recording medium has tracks arranged substantially at a constant pitch. An average of a pitch is tp. When a main beam is placed on the track, a first sub-beam and a second sub-beam are placed between the tracks. The tracking error signal generator performs a differential arithmetic operation with respect to signals output from a light-receiving portion receiving the main beam to generate a first push-pull signal, performs a differential arithmetic operation with respect to signals output from the light-receiving portions receiving the first sub-beam and the second sub-beam to generate a second push-pull signal, and performs a differential arithmetic operation with respect to the first push-pull signal and the second push-pull signal to generate a tracking error signal, in a case where an amplitude of the first push-pull signal obtained at the pitch tp is fluctuated when the light beam is scanned in a direction orthogonal to the tracks of the optical recording medium.

9. 发明申请

US20070195664A1 Optical pick-up head, optical information apparatus, and optical information reproducing method 有权
公开(公告)号：US20070195664A1
公开(公告)日：2007-08-23
申请号：US11789106
申请日：2007-04-23
申请人： Shin-ichi Kadowaki , Kousei Sano , Akihiro Arai , Katsuhiko Yasuda , Tomotada Kamei , Hiroaki Yamamoto , Fumitomo Yamasaki
发明人： Shin-ichi Kadowaki , Kousei Sano , Akihiro Arai , Katsuhiko Yasuda , Tomotada Kamei , Hiroaki Yamamoto , Fumitomo Yamasaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/0901 , G11B7/0903 , G11B7/0941 , G11B7/0943 , G11B7/0948 , G11B7/131 , G11B7/133 , G11B7/1353 , G11B7/13927 , G11B2007/0013
摘要： An optical information apparatus of the present invention includes: an optical pick-up head including: a light source; a diffraction unit; a condensing unit; a beam splitter; a photodetector; and a tracking error signal generator. An optical recording medium has tracks arranged substantially at a constant pitch. An average of a pitch is tp. When a main beam is placed on the track, a first sub-beam and a second sub-beam are placed between the tracks. The tracking error signal generator performs a differential arithmetic operation with respect to signals output from a light-receiving portion receiving the main beam to generate a first push-pull signal, performs a differential arithmetic operation with respect to signals output from the light-receiving portions receiving the first sub-beam and the second sub-beam to generate a second push-pull signal, and performs a differential arithmetic operation with respect to the first push-pull signal and the second push-pull signal to generate a tracking error signal, in a case where an amplitude of the first push-pull signal obtained at the pitch tp is fluctuated when the light beam is scanned in a direction orthogonal to the tracks of the optical recording medium.

10. 发明授权

US07965612B2 Optical head, and information recording-and-regeneration apparatus 有权
标题翻译：光头，信息记录再生装置
公开(公告)号：US07965612B2
公开(公告)日：2011-06-21
申请号：US12641734
申请日：2009-12-18
申请人： Eishin Mori , Akihiro Arai , Fumitomo Yamasaki , Joji Anzai
发明人： Eishin Mori , Akihiro Arai , Fumitomo Yamasaki , Joji Anzai
IPC分类号： G11B7/135 , G11B7/00 , G11B7/20
CPC分类号： G11B7/1374 , G11B7/1376 , G11B7/139 , G11B7/13925 , G11B2007/0013 , G11B2007/13727
摘要： An optical head that is restrained from becoming larger, even if it is used for an optical-information recording medium that includes a plurality of information recording layers. In this optical head, a collimating lens is formed by a concave lens disposed on the side of a light source and a convex lens disposed on the side of an objective lens. A collimating-lens actuator moves the convex lens in a direction where a spherical aberration is cancelled which is generated according to the thickness of a light transmission layer up to an information recording layer of the optical-information recording medium. An aperture stop is provided on the side of the collimating lens with respect to the objective lens, and the aperture stop is located near the focal position of the convex lens on the side of the objective lens.
摘要翻译：即使将其用于包含多个信息记录层的光学信息记录介质，也被抑制得越来越大。在该光学头中，准直透镜由设置在光源侧的凹透镜和设置在物镜侧的凸透镜形成。准直透镜致动器沿着光传输层的厚度直到光信息记录介质的信息记录层产生的球面像差被消除的方向移动凸透镜。在准直透镜相对于物镜的一侧设置孔径光阑，孔径光阑位于物镜侧的凸透镜的焦点附近。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式