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1. 发明申请

US20060176789A1 Data line switching circuit for optical pickup device 审中-公开
标题翻译：数据线切换电路用于光学拾取装置
公开(公告)号：US20060176789A1
公开(公告)日：2006-08-10
申请号：US11331317
申请日：2006-01-13
申请人： Jong-Uk Kim , Jang-Hoon Yoo , Hag-Hyeon Jang , Young-Sun Jeon , Hyung-Jin Kim
发明人： Jong-Uk Kim , Jang-Hoon Yoo , Hag-Hyeon Jang , Young-Sun Jeon , Hyung-Jin Kim
IPC分类号： G11B5/09
CPC分类号： G11B20/10 , G11B2007/0006 , G11B2020/10879
摘要： A data line switching circuit of an optical pickup device is disclosed. In order to drive multiple formats of optical disks, the data line switching circuit applies data signals of a corresponding format to the optical pickup device through a common connector by connecting data lines of the corresponding format to the common connector according to control signals from a control unit, thereby minimizing the number of terminals of the connector to obtain a miniaturized optical pickup device.
摘要翻译：公开了一种光拾取装置的数据线切换电路。为了驱动多种格式的光盘，数据线切换电路根据来自控制器的控制信号，将相应格式的数据线连接到公共连接器，通过公共连接器将相应格式的数据信号应用于光学拾取装置从而最小化连接器的端子数以获得小型化的光学拾取装置。

2. 发明授权

US07782734B2 Optical pickup which is compatible with multiple types of media 有权
标题翻译：与多种介质兼容的光学拾音器
公开(公告)号：US07782734B2
公开(公告)日：2010-08-24
申请号：US11329069
申请日：2006-01-11
申请人： Bong-Gi Kim , Soo-Han Park , Jang-Hoon Yoo , Hag-Hyeon Jang , Ho-Sik You
发明人： Bong-Gi Kim , Soo-Han Park , Jang-Hoon Yoo , Hag-Hyeon Jang , Ho-Sik You
IPC分类号： G11B7/00
CPC分类号： G11B7/1275 , G11B7/1353 , G11B7/1376 , G11B7/13922 , G11B7/13925 , G11B2007/0006
摘要： An optical pickup which is compatible with different types of media is disclosed. A plurality of light sources emit light with different wavelengths. Light path changers change the path of light emitted by the plurality of light sources so that the light is incident upon an objective lens. The objective lens focuses the incident light onto a recording medium. A collimating lens is disposed in front of the objective lens to collimate the incident lights. The collimating lens is movable to correct a spherical aberration. A diffractive optical element is disposed in a path of a light with a short wavelength and has a diffractive surface to correct a chromatic aberration.
摘要翻译：公开了与不同类型的介质兼容的光学拾取器。多个光源发射具有不同波长的光。光路改变器改变由多个光源发射的光的路径，使得光入射到物镜上。物镜将入射光聚焦到记录介质上。准直透镜设置在物镜前面以准直入射光。准直透镜可移动以校正球面像差。衍射光学元件设置在具有短波长的光的路径中并且具有衍射面以校正色差。

3. 发明申请

US20060163459A1 Optical pickup apparatus which is compatible with multiple types of media 失效
标题翻译：与多种类型的介质兼容的光学拾取装置
公开(公告)号：US20060163459A1
公开(公告)日：2006-07-27
申请号：US11329119
申请日：2006-01-11
申请人： Soo-Han Park , Jang-Hoon Yoo , Hag-Hyeon Jang , Ho-Sik You
发明人： Soo-Han Park , Jang-Hoon Yoo , Hag-Hyeon Jang , Ho-Sik You
IPC分类号： G01D5/34
CPC分类号： G11B7/1376 , G11B7/1263 , G11B7/1275 , G11B7/1356 , G11B7/1374 , G11B7/13925 , G11B2007/0006
摘要： An optical pickup apparatus includes a first objective lens having a low numerical aperture (NA) suitable for a low density recording medium, a second objective lens having a high NA suitable for a high density recording medium, a first light source that emits short wavelength light which is focused onto an optical recording medium by the first and second objective lenses, a first photodetector that receives a returning reflected light from the optical recording medium, and a first optical path converter for selectively guiding part of the light emitted from the first light source towards the first or the second objective lens, and guiding the reflected light towards the first photodetector.
摘要翻译：一种光学拾取装置包括具有适用于低密度记录介质的低数值孔径（NA）的第一物镜，具有适用于高密度记录介质的高NA的第二物镜，发射短波长光的第一光源其通过第一和第二物镜聚焦到光学记录介质上，第一光电检测器，其接收来自光学记录介质的返回反射光;以及第一光路转换器，用于选择性地引导从第一光源发射的光的一部分朝向第一或第二物镜，并且将反射光引向第一光电检测器。

4. 发明授权

US07435934B2 Optical pickup apparatus which is compatible with multiple types of media 失效
标题翻译：与多种类型的介质兼容的光学拾取装置
公开(公告)号：US07435934B2
公开(公告)日：2008-10-14
申请号：US11329119
申请日：2006-01-11
申请人： Soo-Han Park , Jang-Hoon Yoo , Hag-Hyeon Jang , Ho-Sik You
发明人： Soo-Han Park , Jang-Hoon Yoo , Hag-Hyeon Jang , Ho-Sik You
IPC分类号： G11B7/00
CPC分类号： G11B7/1376 , G11B7/1263 , G11B7/1275 , G11B7/1356 , G11B7/1374 , G11B7/13925 , G11B2007/0006
摘要： An optical pickup apparatus includes a first objective lens having a low numerical aperture (NA) suitable for a low density recording medium, a second objective lens having a high NA suitable for a high density recording medium, a first light source that emits short wavelength light which is focused onto an optical recording medium by the first and second objective lenses, a first photodetector that receives a returning reflected light from the optical recording medium, and a first optical path converter for selectively guiding part of the light emitted from the first light source towards the first or the second objective lens, and guiding the reflected light towards the first photodetector.
摘要翻译：一种光学拾取装置包括具有适用于低密度记录介质的低数值孔径（NA）的第一物镜，具有适用于高密度记录介质的高NA的第二物镜，发射短波长光的第一光源其通过第一和第二物镜聚焦到光学记录介质上，第一光电检测器，其接收来自光学记录介质的返回反射光;以及第一光路转换器，用于选择性地引导从第一光源发射的光的一部分朝向第一或第二物镜，并且将反射光引向第一光电检测器。

5. 发明申请

US20060164953A1 Optical pickup which is compatible with multiple types of media 有权
标题翻译：与多种介质兼容的光学拾音器
公开(公告)号：US20060164953A1
公开(公告)日：2006-07-27
申请号：US11329069
申请日：2006-01-11
申请人： Bong-Gi Kim , Soo-Han Park , Jang-Hoon Yoo , Hag-Hyeon Jang , Ho-Sik You
发明人： Bong-Gi Kim , Soo-Han Park , Jang-Hoon Yoo , Hag-Hyeon Jang , Ho-Sik You
IPC分类号： G11B7/00
CPC分类号： G11B7/1275 , G11B7/1353 , G11B7/1376 , G11B7/13922 , G11B7/13925 , G11B2007/0006
摘要： An optical pickup which is compatible with different types of media is disclosed. A plurality of light sources emit light with different wavelengths. Light path changers change the path of light emitted by the plurality of light sources so that the light is incident upon an objective lens. The objective lens focuses the incident light onto a recording medium. A collimating lens is disposed in front of the objective lens to collimate the incident lights. The collimating lens is movable to correct a spherical aberration. A diffractive optical element is disposed in a path of a light with a short wavelength and has a diffractive surface to correct a chromatic aberration.
摘要翻译：公开了与不同类型的介质兼容的光学拾取器。多个光源发射具有不同波长的光。光路改变器改变由多个光源发射的光的路径，使得光入射到物镜上。物镜将入射光聚焦到记录介质上。准直透镜设置在物镜前面以准直入射光。准直透镜可移动以校正球面像差。衍射光学元件设置在具有短波长的光的路径中并且具有衍射面以校正色差。

6. 发明授权

US06816449B2 Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens 有权
标题翻译：光拾取器兼容数字通用光盘和使用全息环形透镜的可刻录光盘
公开(公告)号：US06816449B2
公开(公告)日：2004-11-09
申请号：US09930963
申请日：2001-08-17
申请人： Jang-Hoon Yoo , Chul-Woo Lee
发明人： Jang-Hoon Yoo , Chul-Woo Lee
IPC分类号： G11B700
CPC分类号： G11B7/1353 , G02B5/32 , G11B7/1275 , G11B7/1372 , G11B7/1374 , G11B7/1378 , G11B7/139 , G11B7/13922 , G11B2007/0006 , G11B2007/13727
摘要： An optical pickup apparatus compatible with at least two types of optical recording media, using light beams having respective different wavelengths for recording and reading information, the optical pickup apparatus including two laser light sources to emit light beams having the different wavelengths, a holographic lens including a holographic ring to transmit the light beams incident in an inner region of the holographic ring, and to diffract a specific light beam among the light beams emitted from the laser light sources incident in an outer region relative to the inner region, an objective lens to focus the light beams passed through the holographic ring lens on the respective information recording surfaces of the two types of the optical recording media, optical elements to alter optical paths of the light beams reflected from the information recording surfaces of the optical recording media to corresponding photodetectors.
摘要翻译：一种与至少两种类型的光学记录介质兼容的光学拾取装置，使用具有各自不同波长的光束来记录和读取信息，所述光学拾取装置包括两个激光源，以发射具有不同波长的光束;全息透镜，包括用于透射入射在全息环的内部区域中的光束的全息环，并且从入射在相对于内部区域的外部区域的激光光源发射的光束中衍射特定光束，将物镜衍射到将通过全息环透镜的光束聚焦在两种类型的光学记录介质，光学元件的相应信息记录表面上，以将从光学记录介质的信息记录表面反射的光束的光路改变为相应的光电检测器。

7. 发明授权

US06304540B1 Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens 有权
标题翻译：光拾取器兼容数字通用光盘和使用全息环形透镜的可刻录光盘
公开(公告)号：US06304540B1
公开(公告)日：2001-10-16
申请号：US09419792
申请日：1999-10-18
申请人： Jang-Hoon Yoo , Chul-Hoo Lee
发明人： Jang-Hoon Yoo , Chul-Hoo Lee
IPC分类号： G11B712
CPC分类号： G11B7/1353 , G02B5/32 , G11B7/1275 , G11B7/1372 , G11B7/1374 , G11B7/1378 , G11B7/139 , G11B7/13922 , G11B2007/0006 , G11B2007/13727
摘要： An optical pickup apparatus compatible with at least two types of optical recording media, using light beams having respective different wavelengths for recording and reading information, the optical pickup apparatus including two laser light sources to emit light beams having the different wavelengths, respectively, a holographic lens, including a holographic ring, to transmittal of the light beams emitted from the laser light sources in an inner region of the holographic ring, and diffracting a specific light beam among the light beams emitted from the laser light sources in an outer region relative to the inner region, an objective lens to focus the light beams passed through the holographic ring lens on the respective information recording surfaces of the two types of the optical recording media, optical elements to alter optical paths of the light beams reflected from the information recording surfaces of the optical recording media; and two photodetectors to individually detect optical information from the light beams incident from the optical elements. The optical pickup apparatus is used compatibly with optical recording media by using the holographic lens to eliminate spherical aberration generated when an optical recording medium is changed to another medium having a different thickness, thereby providing advantages which include ease in construction of the holographic lens and good mass-production capabilities.
摘要翻译：一种与至少两种类型的光学记录介质兼容的光学拾取装置，使用具有不同波长的光束来记录和读取信息，所述光学拾取装置包括两个激光源，分别发射具有不同波长的光束，全息图透镜，包括全息环，以在全息环的内部区域中传输从激光源发出的光束，并且在相对于外部区域的外部区域中从激光源发射的光束中衍射特定光束内部区域，用于将通过全息环透镜的光束聚焦在两种类型的光学记录介质的各个信息记录表面上的物镜，用于改变从信息记录表面反射的光束的光路的光学元件的光学记录介质; 以及两个光电检测器，用于单独地检测从光学元件入射的光束的光学信息。光学拾取装置通过使用全息透镜与光学记录介质兼容地使用，以消除当光学记录介质变为具有不同厚度的另一种介质时产生的球面像差，从而提供了包括易于构造全息透镜的优点批量生产能力。

8. 发明申请

US20070025229A1 Optical pickup apparatus 有权
标题翻译：光拾取装置
公开(公告)号：US20070025229A1
公开(公告)日：2007-02-01
申请号：US11290457
申请日：2005-12-01
申请人： Bong-Gi Kim , Soo-Han Park , Young-Man Ahn , Jang-Hoon Yoo
发明人： Bong-Gi Kim , Soo-Han Park , Young-Man Ahn , Jang-Hoon Yoo
IPC分类号： G11B7/135
CPC分类号： G11B7/1356 , G11B7/123 , G11B7/1275 , G11B7/1374 , G11B7/13927 , G11B7/1395 , G11B2007/0006
摘要： An optical pickup apparatus according to an embodiment of the present invention, comprises an optical unit for projecting a plurality of wavelengths of light, the light including a celadon light, toward a recording medium and receiving the light reflected from the recording medium to thereby detect an information signal and an error signal, and a compatible objective lens for focusing a light projected from the optical unit to thereby form an optical spot on a recording surface of the recording medium and applying at least three light having different wavelength ranges to be compatibly used for both the high-density and the low-density recording mediums. Accordingly, the optical pickup apparatus is capable of compatibly employing a high-density recording medium, which uses a celadon light and is slimmer than a digital versatile disc (DVD), and at least one low-density recording medium.
摘要翻译：根据本发明实施例的光学拾取装置包括一个光学单元，用于将多个波长的光（包括青瓷光的光）投射到记录介质上，并接收从记录介质反射的光，从而检测一个信息信号和误差信号，以及用于聚焦从光学单元投影的光的兼容物镜，从而在记录介质的记录表面上形成光点，并且将至少三个具有不同波长范围的光并入，用于高密度和低密度记录介质。因此，光拾取装置能够兼容使用青瓷光的高密度记录介质，并且比数字通用盘（DVD）更薄，以及至少一种低密度记录介质。

9. 发明申请

US20060158995A1 Optical pickup device and focusing control method of the same 审中-公开
标题翻译：光拾取装置和聚焦控制方法相同
公开(公告)号：US20060158995A1
公开(公告)日：2006-07-20
申请号：US11250416
申请日：2005-10-17
申请人： Seong-Su Park , Young-Man Ahn , Jang-Hoon Yoo , Jung-Woo Hong
发明人： Seong-Su Park , Young-Man Ahn , Jang-Hoon Yoo , Jung-Woo Hong
IPC分类号： G11B7/00
CPC分类号： G11B7/094 , G11B7/0903 , G11B7/0943 , G11B7/131 , G11B2007/0006
摘要： An optical pickup device and a focusing control method thereof are provided which can determine a DC offset caused by cross-talk of a focus error signal, eliminate the DC offset based on the determination, correct errors in a focus error signal of a main beam, which is caused by interference of side beams, so that optimal focus tracking can be performed. For this, the optical pickup device has at least one or more light sources, a diffraction optical element which diffracts light from the light source into a plurality of beams, an objective lens which condenses the plurality of beams diffracted by the diffraction optical element, a photo detector which detects the plurality of beams reflected from discs, and an auxiliary photo detector which detects the plurality of beams reflected from the discs to perform error correction of focus error detection signals obtained by the photo detector.
摘要翻译：提供一种光拾取装置及其聚焦控制方法，其可以确定由聚焦误差信号的串扰引起的DC偏移，基于该确定消除DC偏移，校正主波束的聚焦误差信号中的误差，这是由侧波束的干扰引起的，从而可以进行最佳的聚焦跟踪。为此，光学拾取装置具有至少一个或多个光源，将来自光源的光衍射成多个光束的衍射光学元件，会聚由衍射光学元件衍射的多个光束的物镜，光检测器，其检测从光盘反射的多个光束;以及辅助光检测器，其检测从盘反射的多个光束，以对由光检测器获得的聚焦误差检测信号进行纠错。

10. 发明授权

US06449229B1 Optical pickup assembly with adjustable inclination 失效
标题翻译：具有可调倾斜度的光学拾取组件
公开(公告)号：US06449229B1
公开(公告)日：2002-09-10
申请号：US09328375
申请日：1999-06-09
申请人： Seok-Jung Kim , Byung-Ryul Ryoo , Yong-Ki Son , Pyong-Yong Seong , Yong-Jae Lee , Tae-Kyung Kim , Jang-Hoon Yoo
发明人： Seok-Jung Kim , Byung-Ryul Ryoo , Yong-Ki Son , Pyong-Yong Seong , Yong-Jae Lee , Tae-Kyung Kim , Jang-Hoon Yoo
IPC分类号： G11B700
CPC分类号： G11B7/0956 , G11B7/0933 , G11B7/0935
摘要： An optical pickup assembly includes a base, a bobbin having an objective lens mounted thereon, the bobbin being installed at the base so as to be movable and having a pair of first side surfaces parallel to a radial direction of a disk and a pair of second side surfaces parallel to the tangential direction of a disk track, a focus coil wound around the bobbin for driving the objective lens in a focus direction, a track coil installed at the first side surfaces for driving the objective lens in a radial direction of the disk, a driving magnet installed at the base to face the first side surfaces, a tilt coil installed at the second side surfaces for driving the objective lens in response to the relative inclination between the objective lens and the disk, a first tilt magnet installed at the base such that one polarity thereof faces the tilt coil, a second tilt magnet installed at an upper portion of the first tilt magnet such that another polarity opposite to the one polarity thereof faces the tilt coil, an inclination detector for detecting the relative inclination between the objective lens and the disk, and a cover coupled to the base to protect the objective lens.
摘要翻译：一种光学拾取器组件，包括基座，安装有物镜的线轴，所述线轴安装在所述基座上以便可移动，并且具有平行于盘的一半径的一对第一侧表面和一对第二平行于盘轨道的切线方向的侧面，卷绕在筒管上的聚焦线圈，用于在聚焦方向上驱动物镜;轨道线圈，安装在第一侧面，用于沿盘的径向驱动物镜安装在所述基座上以面对所述第一侧面的驱动磁体，安装在所述第二侧表面处以响应于所述物镜和所述盘之间的相对倾斜来驱动所述物镜的倾斜线圈，安装在所述物镜上的第一倾斜磁体使得其一个极性面向倾斜线圈，第二倾斜磁体安装在第一倾斜磁体的上部，使得与其一个极性相反的另一极性f 倾斜线圈，用于检测物镜和盘之间的相对倾斜度的倾斜检测器，以及联接到基座以保护物镜的盖。

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