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51. 发明授权

US07898927B2 Optical pickup device 有权
标题翻译：光学拾取装置
公开(公告)号：US07898927B2
公开(公告)日：2011-03-01
申请号：US12791558
申请日：2010-06-01
申请人： Takuya Okuda , Hiroaki Yamamoto , Naoki Nakanishi , Masahiko Nishimoto , Naoto Shimada
发明人： Takuya Okuda , Hiroaki Yamamoto , Naoki Nakanishi , Masahiko Nishimoto , Naoto Shimada
IPC分类号： G11B7/00
CPC分类号： G11B7/0903 , G11B7/1353 , G11B2007/0006
摘要： A pickup device includes a diffraction grating 12 for separating a light beam emitted from the light source into at least three light beams. The diffraction grating 12 is divided into four regions by straight lines extending in a direction parallel to a tangential direction of tracks of an optical information recording medium. A periodic structure of a second region 12B has a phase difference of approximately 180 degrees from a periodic structure of a third region 12C, and a periodic structure of a first region 12A has a phase difference of approximately 180 degrees from a periodic structure of a fourth region 12D.
摘要翻译：拾取装置包括用于将从光源发射的光束分离成至少三个光束的衍射光栅12。衍射光栅12通过沿与光信息记录介质的光道的切线方向平行的方向延伸的直线分成四个区域。第二区域12B的周期性结构具有与第三区域12C的周期性结构近似180度的相位差，并且第一区域12A的周期性结构与第四区域1212的周期性结构具有大约180度的相位差区域12D。

52. 发明申请

US20100014411A1 OPTICAL PICKUP DEVICE 有权
公开(公告)号：US20100014411A1
公开(公告)日：2010-01-21
申请号：US12303578
申请日：2007-09-06
申请人： Takuya Okuda , Hiroaki Yamamoto , Naoki Nakanishi , Masahiko Nishimoto , Naoto Shimada
发明人： Takuya Okuda , Hiroaki Yamamoto , Naoki Nakanishi , Masahiko Nishimoto , Naoto Shimada
IPC分类号： G11B7/135
CPC分类号： G11B7/0903 , G11B7/1353 , G11B2007/0006
摘要： A pickup device includes a diffraction grating 12 for separating a light beam emitted from the light source into at least three light beams. The diffraction grating 12 is divided into four regions by straight lines extending in a direction parallel to a tangential direction of tracks of an optical information recording medium. A periodic structure of a second region 12B has a phase difference of approximately 180 degrees from a periodic structure of a third region 12C, and a periodic structure of a first region 12A has a phase difference of approximately 180 degrees from a periodic structure of a fourth region 12D.

53. 发明申请

US20090168628A1 OPTICAL PICKUP APPARATUS 审中-公开
公开(公告)号：US20090168628A1
公开(公告)日：2009-07-02
申请号：US12065972
申请日：2007-03-08
申请人： Masahiko Nishimoto , Naoki Nakanishi , Masayuki Ono
发明人： Masahiko Nishimoto , Naoki Nakanishi , Masayuki Ono
IPC分类号： G11B7/00 , G11B7/135
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/0943 , G11B7/131 , G11B7/1381 , G11B2007/0013
摘要： An optical pickup apparatus for use with a semiconductor laser which outputs a light beam, the optical pickup apparatus has; a diffraction grating for diffracting the light beam into diffracted light; a collimator lens for rendering the diffracted light diffracted by the diffraction grating as a parallel beam; an objective lens for focusing the parallel beam towards an optical information recording medium; a hologram element for diffracting return light reflected from the optical information recording medium; a plurality of light receiving elements for receiving the diffracted light diffracted by the hologram element; and an incidence preventing area placed between the hologram element and the light receiving elements for, in the case where the light beam is focused on the recording surface on a side close to the objective lens out of recording surfaces of multilayer of the optical information recording medium, substantially preventing reflected light from the recording surface on a side remote from the objective lens from entering the light receiving elements.
摘要翻译：一种用于与输出光束的半导体激光器一起使用的光学拾取装置，该光学拾取装置具有：用于将光束衍射成衍射光的衍射光栅; 用于使由衍射光栅衍射的衍射光作为平行光束的准直透镜; 用于将平行光束聚焦到光学信息记录介质的物镜; 用于衍射从光学信息记录介质反射的返回光的全息元件; 多个光接收元件，用于接收由全息元件衍射的衍射光; 以及放置在全息元件和光接收元件之间的入射防止区域，用于在光学信息记录介质的多层记录表面的光束聚焦在靠近物镜的一侧的记录表面上的情况下基本上防止远离物镜的一侧的记录表面的反射光进入光接收元件。

54. 发明授权

US07539117B2 Optical pickup 失效
标题翻译：光学拾音
公开(公告)号：US07539117B2
公开(公告)日：2009-05-26
申请号：US11498989
申请日：2006-08-04
申请人： Tatsuya Nakamori , Masayuki Ono , Naoki Nakanishi , Masahiko Nishimoto
发明人： Tatsuya Nakamori , Masayuki Ono , Naoki Nakanishi , Masahiko Nishimoto
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/0903
摘要： An optical pickup has a semiconductor laser, a diffractive optical element that has first diffraction regions and second diffraction regions and diffracts a beam emitted by the semiconductor laser, an objective lens that focuses the diffracted beam on an optical disc, and a detection unit that detects a tracking error signal using the diffracted beam reflected by the optical disc. When a zero order diffraction beam is focused on the optical disc, a first order diffraction beam is diffracted by the first diffraction regions to be focused at a position between the objective lens and the optical disc, and diffracted by the second diffraction regions to be focused at a position beyond the optical disc. The first order diffraction beam has a beam width that, on the optical disc in a radial direction thereof, is two times or greater a track pitch of the optical disc.
摘要翻译：光拾取器具有半导体激光器，具有第一衍射区域和第二衍射区域并衍射由半导体激光器发射的光束的衍射光学元件，将衍射光束聚焦在光盘上的物镜，以及检测单元，其检测使用由光盘反射的衍射光束的跟踪误差信号。当零级衍射光束聚焦在光盘上时，第一级衍射光束被第一衍射区域衍射以被聚焦在物镜和光盘之间的位置处，并被第二衍射区域衍射以被聚焦在超过光盘的位置。第一级衍射光束具有光盘宽度，该光束宽度在光盘的径向方向上是光盘的光道间距的两倍或更大。

55. 发明申请

US20070176804A1 INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD 有权
标题翻译：信息处理设备和信息处理方法
公开(公告)号：US20070176804A1
公开(公告)日：2007-08-02
申请号：US11691010
申请日：2007-03-26
申请人： Toshio ABE , Hiroyuki Namiki , Masaru Kageura , Atsushi Mizukami , Takahiro Nakagawa , Naoki Nakanishi , Kenichi Inaho , Reiko Horikawa
发明人： Toshio ABE , Hiroyuki Namiki , Masaru Kageura , Atsushi Mizukami , Takahiro Nakagawa , Naoki Nakanishi , Kenichi Inaho , Reiko Horikawa
IPC分类号： H03M7/12
CPC分类号： G06T11/203 , G06F17/211 , G06T11/60
摘要： Information that is required for laying out character string data is entered, as are character string data. The printing attributes for the data are then edited, and are employed to extract contour information. Thereafter, the extracted contour information is employed to determine the information that is to be used as a reference when laying out the character string data, and a layout position is specified. Then, the various data that are obtained are stored as printing data, and the character string data are laid out in a drawing area. Therefore, the printing data can be precisely and easily prepared, without the work efficiency of a user being deteriorated.
摘要翻译：输入字符串数据所需的信息，以及字符串数据。然后对数据的打印属性进行编辑，并用于提取轮廓信息。此后，提取的轮廓信息用于确定在布置字符串数据时要用作参考的信息，并且指定布局位置。然后，获得的各种数据被存储为打印数据，并且字符串数据被布置在绘图区域中。因此，可以精确而容易地准备打印数据，而不会降低用户的工作效率。

56. 发明授权

US07126599B2 Graphics processing apparatus and method for computing the distance between three-dimensional graphic elements 有权
公开(公告)号：US07126599B2
公开(公告)日：2006-10-24
申请号：US11108756
申请日：2005-04-19
申请人： Hitoshi Nishitani , Naoki Nakanishi
发明人： Hitoshi Nishitani , Naoki Nakanishi
IPC分类号： G06T15/00
CPC分类号： G06T19/00 , G06T15/20 , G06T2219/008
摘要： A graphics processing apparatus for computing the distance between two three-dimensional graphic elements without reducing the user's operating efficiency is provided. The graphics processing apparatus selects, from among three-dimensional objects displayed on a display, graphic elements between which the distance is to be computed, determines a projection reference in accordance with a viewing direction and geometric information on the graphic elements, and determines a projection plane in accordance with the projection reference. The graphic elements are projected onto the determined projection plane, and the minimum distance between the selected graphic elements is computed from the projected graphic elements.

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