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81. 发明授权

US07161325B2 Lead-angle control method and device for operating permanent magnet synchronous motor in flux weakening regions 有权
标题翻译：永磁同步电动机在磁通弱化区域中的前角控制方法及装置
公开(公告)号：US07161325B2
公开(公告)日：2007-01-09
申请号：US11266385
申请日：2005-11-04
申请人： Soon-bae Yang , Sung-min Park , Tae-won Kim , Tae-kyung Kim
发明人： Soon-bae Yang , Sung-min Park , Tae-won Kim , Tae-kyung Kim
IPC分类号： H02P21/14 , H02P21/00
CPC分类号： H02P21/06 , H02P25/024
摘要： A lead-angle control device according to the present invention includes: a space voltage vector controller calculating effective vector application times necessary for obtaining output voltage vectors of an inverter from stationary-coordinate-system instruction voltage components; a lead-angle compensator comparing the sum of the effective vector application times with a sampling period, and generating lead-angle compensation values; a speed controller generating an instruction current for compensating an error caused by a difference between an instruction speed and a current speed; an instruction current generator which generates a rotating-coordinate-system instruction current component by extracting a lead-angle component at a point where maximum torque-per-ampere can be obtained from the magnitude of the instruction current and performing a mathematical calculation on the magnitude of the instruction current and a lead-angle component; and an instruction voltage generator generating a stationary-coordinate-system instruction voltage component from the rotating-coordinate-system instruction current component.
摘要翻译：根据本发明的前角控制装置包括：空间电压矢量控制器，从静止坐标系指令电压分量计算获得逆变器的输出电压矢量所需的有效矢量应用次数; 将有效矢量施加时间的总和与采样周期进行比较并产生前角补偿值的前角补偿器; 速度控制器，产生用于补偿由指令速度和当前速度之间的差引起的误差的指令电流; 指令电流发生器，其通过从指令电流的大小获得最大每立方厘米转矩的点，通过提取旋转坐标系指令电流分量来产生旋转坐标系指令电流分量，并对该幅度进行数学计算的指令电流和一个引导角分量; 以及从旋转坐标系指令电流分量产生静止坐标系指令电压分量的指令电压发生器。

82. 发明授权

US07120109B1 Optical pickup with improved collimating lens for use with long and short wavelength laser beams 有权
标题翻译：具有改进的准直透镜的光学拾取器，用于长波长和短波长激光束
公开(公告)号：US07120109B1
公开(公告)日：2006-10-10
申请号：US09698201
申请日：2000-10-30
申请人： Tae-kyung Kim , Chong-sam Chung , Young-man Ahn , Hea-jung Suh
发明人： Tae-kyung Kim , Chong-sam Chung , Young-man Ahn , Hea-jung Suh
IPC分类号： G11B7/00
CPC分类号： G11B7/1376 , G11B7/13922
摘要： An optical pickup capable of effectively reducing chromatic aberration that includes a collimating lens, which includes a diverging lens with diverging power and a focusing lens with focusing power, arranged on the optical path between a light source and an objective lens, wherein assuming that the total focal length of the collimating lens is f and the focal length of the diverging lens is fn, the collimating lens satisfies the relationship −1.5>f/fn. The optical pickup is compatible with both existing digital versatile disks (DVDs), and high-definition (HD)-DVDs, which will not yet standardized, need a blue light source near 405 nm and an objective lens having an numerical aperture of 0.6 or more.
摘要翻译：一种能够有效地减少色差的光学拾取器，其包括准直透镜，该准直透镜包括具有发散光焦度的发散透镜和聚焦光焦度的聚焦透镜，该准直透镜布置在光源和物镜之间的光路上，其中，准直透镜的焦距为f，发散透镜的焦距为fn，准直透镜满足关系-1.5> f / fn。光学拾音器与现有的数字通用盘（DVD）兼容，并且尚未标准化的高分辨率（HD）-DVD需要405nm附近的蓝色光源，并且具有数值孔径为0.6的物镜或更多。

83. 发明申请

US20060203629A1 Information storage medium and method of recording and/or reproducing data on and/or from the same 审中-公开
标题翻译：信息存储介质和在其上和/或从该数据记录和/或再现数据的方法
公开(公告)号：US20060203629A1
公开(公告)日：2006-09-14
申请号：US11430875
申请日：2006-05-10
申请人： Kyung-geun Lee , Tae-kyung Kim , Tatsuhiro Otsuka , Wook-yeon Hwang
发明人： Kyung-geun Lee , Tae-kyung Kim , Tatsuhiro Otsuka , Wook-yeon Hwang
IPC分类号： G11B7/00
CPC分类号： G11B7/00454 , G11B7/0053 , G11B7/00718 , G11B7/00736 , G11B7/0912 , G11B7/24085
摘要： An information storage medium and a method of recording data on and/or reproducing data from the information storage medium, includes an information storage medium having at least one information storage layer. Data is recorded in the form of protruding or indented pits in the entire or partial area of the information storage medium, and information regarding the protruding or indented pits is recorded. Smooth tracking can be achieved using the information regarding the protruding or indented pits, that is, push-pull polarity information.
摘要翻译：信息存储介质和从信息存储介质记录数据和/或再现数据的方法包括具有至少一个信息存储层的信息存储介质。在信息存储介质的整个或部分区域中以突出或缩进凹坑的形式记录数据，并且记录关于突出或缩进凹坑的信息。可以使用关于突出或凹陷凹坑的信息，即推挽极性信息来实现平滑跟踪。

84. 发明申请

US20050152051A1 Beam shaping prism and optical pickup employing the same 失效
标题翻译：光束成像棱镜和采用其的光学拾取器
公开(公告)号：US20050152051A1
公开(公告)日：2005-07-14
申请号：US11033625
申请日：2005-01-13
申请人： Jong-chul Choi , Tae-kyung Kim
发明人： Jong-chul Choi , Tae-kyung Kim
IPC分类号： G02B5/04 , G02B27/09 , G11B7/12
CPC分类号： G02B5/04 , G02B19/0028 , G02B19/0052 , G02B27/0972
摘要： A beam shaping prism used in an optical pickup, the beam shaping prism includes a first prism having an incident surface and a second prism having an inclined surface. Since a beam entering the beam shaping prism makes right angles with a beam emerging therefrom, it is easy to optically arrange and assemble elements.
摘要翻译：在光学拾取器中使用的光束整形棱镜，光束整形棱镜包括具有入射表面的第一棱镜和具有倾斜表面的第二棱镜。由于进入光束整形棱镜的光束与从其出射的光束成直角，因此易于光学地布置和组装元件。

85. 发明授权

US06826142B2 Method of and apparatus for reproducing data recorded on an optical disc 失效
标题翻译：用于再现记录在光盘上的数据的方法和装置
公开(公告)号：US06826142B2
公开(公告)日：2004-11-30
申请号：US10046556
申请日：2002-01-16
申请人： Tae-kyung Kim , Young-man Ahn , Jong-bae Kim , Chong-sam Chung
发明人： Tae-kyung Kim , Young-man Ahn , Jong-bae Kim , Chong-sam Chung
IPC分类号： G11B700
CPC分类号： G11B7/00718 , G11B7/0053 , G11B7/00745 , G11B7/131
摘要： A method of detecting a reproduction signal from an optical disc. A light beam reflected from a recording surface of an optical disc is divided into a central light beam portion and outer light beam portions in a direction corresponding to a radial direction of the optical disc. The central light beam portion and outer light beam portions are detected and a first detection signal from the central light beam portion and a second detection signal from at least one of the outer light beam portions are output. The amplitude of at least one of the first and second detection signals is adjusted and the reproduction signal is detected by subtraction between the first detection and second detection signals so that where reproduction is carried out on an optical disc having a varying track width the reproduction signal is improved.
摘要翻译：一种从光盘检测再现信号的方法。从光盘的记录表面反射的光束在与光盘的径向相对应的方向上被分成中心光束部分和外部光束部分。检测中心光束部分和外部光束部分，并且输出来自中心光束部分的第一检测信号和来自外部光束部分中的至少一个的第二检测信号。调整第一和第二检测信号中的至少一个的振幅，并且通过在第一检测和第二检测信号之间的减法来检测再现信号，使得在对具有变化的轨道宽度的光盘进行再现时，再现信号改进了

86. 发明授权

US06807144B2 Optical recording medium recordable on land and groove tracks 失效
标题翻译：光盘记录介质可在陆地和凹槽轨道上记录
公开(公告)号：US06807144B2
公开(公告)日：2004-10-19
申请号：US10157014
申请日：2002-05-30
申请人： Tae-kyung Kim , Young-man Ahn , Chong-sam Chung , Jin-kyung Lee , Jong-bae Kim , Du-seop Yoon
发明人： Tae-kyung Kim , Young-man Ahn , Chong-sam Chung , Jin-kyung Lee , Jong-bae Kim , Du-seop Yoon
IPC分类号： G11B700
CPC分类号： G11B27/24 , G11B7/00718 , G11B7/24082 , G11B2220/216 , G11B2220/2575
摘要： An optical recording medium having groove tracks and land tracks, first wobbles formed along both sidewalls of each of the groove tracks, second wobbles formed along both sidewalls of each of the land tracks and which are independent of the formation of the first wobble. A middle portion is formed at a predetermined position on each of the sidewalls between adjacent pairs of the land and groove tracks. This optical recording medium can significantly reduce the non-recordable area as compared to conventional optical recording media, resulting in a great improvement in recording density.
摘要翻译：一种光记录介质，具有凹槽轨迹和凹槽轨迹，沿着每个凹槽轨道的两个侧壁形成第一摆动，沿着每个凸台轨道的两个侧壁形成第二摆动，并且独立于第一摆动的形成。中间部分形成在相邻的脊和凹槽轨道对之间的每个侧壁上的预定位置处。与常规光学记录介质相比，该光学记录介质可以显着地减少不可记录区域，从而导致记录密度的极大提高。

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