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31. 发明授权

US07924682B2 Unit to remove crosstalk in multi-layered disk, optical pickup including the unit, and optical recording and/or reproducing apparatus including the optical pickup 有权
标题翻译：用于去除多层盘中的串扰的单元，包括该单元的光学拾取器，以及包括光学拾取器的光学记录和/或再现设备
公开(公告)号：US07924682B2
公开(公告)日：2011-04-12
申请号：US11970638
申请日：2008-01-08
申请人： Jang-hoon Yoo , Yong-han Yoon , Soo-hen Park , Young-sun Jeong , Myoung-seek Kim
发明人： Jang-hoon Yoo , Yong-han Yoon , Soo-hen Park , Young-sun Jeong , Myoung-seek Kim
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G11B7/1353 , G11B7/1362 , G11B7/1398 , G11B2007/0013
摘要： A unit to remove crosstalk in a multi-layered disk, an optical pickup including the unit, and an optical recording and/or reproducing apparatus including the optical pickup, of which the optical pickup includes: a light source; an optical path changer to change the path of light emitted from the light source; a unit to remove crosstalk; an objective lens to focus incident light on a disk; and a photodetector detecting light reflected by the disk such that the unit to remove crosstalk separates light reflected by a target recording layer of the disk from light reflected by adjacent recording layers so that the light reflected by the target recording layer and the light reflected by the adjacent recording layers do not overlap on the photodetector.
摘要翻译：一种用于去除多层盘中的串扰的单元，包括该单元的光学拾取器，以及包括光学拾取器的光学记录和/或再现设备，其中光学拾取器包括：光源; 用于改变从光源发射的光的路径的光路改变器; 一个去除串扰的单元; 将入射光聚焦在盘上的物镜; 以及光检测器，其检测由盘反射的光，使得去除串扰的单元将由盘的目标记录层反射的光与由相邻记录层反射的光分离，使得由目标记录层反射的光和由相邻的记录层在光电检测器上不重叠。

32. 发明授权

US07606135B2 Optical recording/reproducing apparatus capable of recording/reproducing information onto/from various types of optical recording media of different recording densities and different thicknesses 有权
标题翻译：能够在不同记录密度和不同厚度的各种类型的光学记录介质上记录/再现信息的光学记录/再现设备
公开(公告)号：US07606135B2
公开(公告)日：2009-10-20
申请号：US11430847
申请日：2006-05-10
申请人： Jang-hoon Yoo , Hag-hyun Jang , Soo-han Park , Soo-jin Jeong , Tae-youn Heor , Bong-gi Kim
发明人： Jang-hoon Yoo , Hag-hyun Jang , Soo-han Park , Soo-jin Jeong , Tae-youn Heor , Bong-gi Kim
IPC分类号： G11B7/00
CPC分类号： G11B7/1275 , G11B7/1353 , G11B2007/0006
摘要： An optical recording/reproducing apparatus including a plurality of light sources emitting lights with different wavelengths for use in recording/reproducing information onto/from various types of optical recording media of different recording densities, in which at least two lights emitted from the light sources have polarization components orthogonal to each other; an objective lens for focusing a light from each of the light sources to a corresponding optical recording medium; a collimating lens disposed between the light sources and the objective lens for collimating lights from the light sources; a hologram element installed between the collimating lens and the objective lens for refracting a light emitted from one of the light sources, in which the light to be refracted is selected by wavelength and polarization components; and a photodetector receiving a light that is reflected from the corresponding optical recording medium after being focused by the objective lens.
摘要翻译：一种光学记录/再现装置，包括发射具有不同波长的光的多个光源，用于在/不同记录密度的各种类型的光学记录介质上记录/再现信息，其中从光源发射的至少两个光具有极化分量彼此正交; 用于将来自每个光源的光聚焦到相应的光学记录介质的物镜; 设置在光源和物镜之间的准直透镜，用于准直来自光源的光; 安置在准直透镜和物镜之间的全息元件，用于折射从其中一个光源发射的光，其中通过波长和偏振分量选择待折射的光; 以及光接收器，其在被物镜聚焦之后接收从对应的光记录介质反射的光。

33. 发明授权

US07593306B2 Diffraction element and optical pick-up apparatus having the same 失效
$Diffraction element and optical pick-up apparatus having the same$
标题翻译：具有该衍射元件和光学拾取装置的衍射元件
公开(公告)号：US07593306B2
公开(公告)日：2009-09-22
申请号：US11337584
申请日：2006-01-24
申请人： Bong-gi Kim , Soo-han Park , Jang-hoon Yoo
发明人： Bong-gi Kim , Soo-han Park , Jang-hoon Yoo
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/0909 , G11B7/1381
摘要： A diffraction element for an optical pick-up apparatus is provided that enables more accurate focusing control. The diffraction element for an optical pick-up apparatus is divided into first and second regions, each being formed with a grid pattern in which grids are repeated with a predetermined pitch P. The grid pattern in at least one of the first and second regions is tilted by a predetermined angle with respect to a virtual line VL substantially perpendicular to a division line DL that divides the first and second regions.
摘要翻译：提供了一种用于光学拾取装置的衍射元件，其能够进行更精确的聚焦控制。用于光学拾取装置的衍射元件被分成第一和第二区域，每个区域形成有栅格图案，栅格图案以预定间距P重复。第一和第二区域中的至少一个区域中的栅格图案是相对于基本上垂直于划分第一和第二区域的分割线DL的虚拟线VL倾斜预定角度。

34. 发明授权

US07558179B2 Compatible optical pickup using light sources following a common optical path 有权
公开(公告)号：US07558179B2
公开(公告)日：2009-07-07
申请号：US11295594
申请日：2005-12-07
申请人： Jang-hoon Yoo , Chul-woo Lee , Jong-ryull Kim
发明人： Jang-hoon Yoo , Chul-woo Lee , Jong-ryull Kim
IPC分类号： G11B7/00
CPC分类号： G11B7/127 , G11B7/123 , G11B7/1353 , G11B7/1372 , G11B2007/0006
摘要： An optical pickup compatible with recording media having different formats, the optical pickup includes a light device module having a first light beam source and a second light beam source to emit corresponding first and second light beams having different wavelengths, a hologram light coupler to separately guide the first and second light beams along the same optical path such that the first and second light beams go toward a corresponding one of the recording media, an optical path changing element to selectively alter the optical path of an incident light beam, and an objective lens disposed on an optical path between said optical path changing element the corresponding one of the recording media to focus the first and second light beam on the corresponding one of the recording media, and a photodetector to receive the first and second light beam incident from said optical path changing element.

35. 发明授权

US07319643B2 Method for detecting servo error, apparatus therefor, disk which maintains quality of servo error signal, method of controlling servo of disk recording/reproducing apparatus, method of detecting tracking error, and method of detecting tilt error 有权
标题翻译：用于检测伺服误差的方法，其装置，保持伺服误差信号质量的盘，控制盘记录/重放装置伺服的方法，检测跟踪误差的方法以及检测倾斜误差的方法
公开(公告)号：US07319643B2
公开(公告)日：2008-01-15
申请号：US11304636
申请日：2005-12-16
申请人： Seong-sin Joo , In-sik Park , Byung-in Ma , Chong-sam Chung , Jang-hoon Yoo , Jung-wan Ko , Kyung-geun Lee , Joong-eon Seo
发明人： Seong-sin Joo , In-sik Park , Byung-in Ma , Chong-sam Chung , Jang-hoon Yoo , Jung-wan Ko , Kyung-geun Lee , Joong-eon Seo
IPC分类号： G11B7/00
CPC分类号： G11B7/00718 , G11B7/0901 , G11B7/0938 , G11B7/0941 , G11B7/0956
摘要： An apparatus for recording data on and reproducing data from the disk in which a recording area is divided into sectors, includes a reproducing signal generator for generating a reproducing signal including sum signals V1 and V2 of radial pairs, a sum signal RF_sum, and a push-pull signal RF_pp from an optical signal reflected from the disk, a header area detector for generating a header area signal including a header area from the reproducing signal, a first synchronous signal level detector for detecting a magnitude Ivfo1 of a first synchronous signal in the first header by being synchronized with the header area signal, a second synchronous signal level detector for detecting a magnitude Ivfo3 of a second synchronous signal in the second header by being synchronized with the header area signal, and a balance calculator for calculating the balance of the magnitude Ivfo1 and the magnitude Ivfo3.
摘要翻译：一种用于在盘中将数据记录在数据上并将数据从记录区域划分成扇区的装置，包括一个再现信号发生器，用于产生包括径向对的和信号V 1和V 2的再现信号，和信号RF_sum和来自从盘反射的光信号的推挽信号RF_pp，用于产生包含来自再现信号的标题区的标题区信号的标题区检测器，用于检测第一同步信号的幅度Ivfo1的第一同步信号电平检测器信号通过与标题区域信号同步在第一标题中;第二同步信号电平检测器，用于通过与标题区域信号同步来检测第二标题中的第二同步信号的幅度Ivfo 3;以及平衡计算器，用于计算幅度Ivfo 1和幅度Ivfo 3的平衡。

36. 发明申请

US20060176790A1 Optical disk writing and reading apparatus, and method thereof 审中-公开
标题翻译：光盘写入读取装置及其方法
公开(公告)号：US20060176790A1
公开(公告)日：2006-08-10
申请号：US11348339
申请日：2006-02-07
申请人： Jang-hoon Yoo , Soo-han Park , Chun-seong Park , Tae-hoon Lee
发明人： Jang-hoon Yoo , Soo-han Park , Chun-seong Park , Tae-hoon Lee
IPC分类号： G11B5/09 , G11B7/00
CPC分类号： G11B7/1369 , G11B7/0948 , G11B7/1267 , G11B7/1376 , G11B7/13927 , G11B2007/0013
摘要： An optical disk writing and reading apparatus and a method thereof is provided. The optical disk writing and reading apparatus has an optical pick-up for writing or reading data on an optical disk by using a laser light of a certain wavelength, an optical power calculation part for calculating an optical power of the laser light generated from the optical pick-up, and a micom operating the optical power calculation part by every certain time to detect the optical power of the laser light and adjusting the optical power of the laser light based on a preset optimum optical power to be optimized while writing the data on the optical disk.
摘要翻译：提供了一种光盘写入读取装置及其方法。光盘写入读取装置具有通过使用一定波长的激光在光盘上写入或读取数据的光学拾取器，用于计算从光学产生的激光的光学功率的光学功率计算部拾取器和微型计算机，每隔一定时间操作光功率计算部件，以检测激光的光功率，并且基于在将数据写入时优化的预设最佳光功率来调整激光的光功率光盘。

37. 发明申请

US20060120248A1 Diffraction element and optical pick-up apparatus having the same 失效
$Diffraction element and optical pick-up apparatus having the same$
公开(公告)号：US20060120248A1
公开(公告)日：2006-06-08
申请号：US11337584
申请日：2006-01-24
申请人： Bong-gi Kim , Soo-han Park , Jang-hoon Yoo
发明人： Bong-gi Kim , Soo-han Park , Jang-hoon Yoo
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/0909 , G11B7/1381
摘要： A diffraction element for an optical pick-up apparatus is provided that enables more accurate focusing control. The diffraction element for an optical pick-up apparatus is divided into first and second regions, each being formed with a grid pattern in which grids are repeated with a predetermined pitch P. The grid pattern in at least one of the first and second regions is tilted by a predetermined angle with respect to a virtual line VL substantially perpendicular to a division line DL that divides the first and second regions.

38. 发明授权

US06556521B1 METHOD FOR DETECTING SERVO ERROR, APPARATUS THEREFOR, DISK WHICH MAINTAINS QUALITY OF SERVO ERROR SIGNAL, METHOD OF CONTROLLING SERVO OF DISK RECORDING/REPRODUCING APPARATUS, METHOD OF DETECTING TRACKING ERROR, AND METHOD OF DETECTING TILT ERROR 有权
标题翻译：用于检测服务器错误的方法，其装置，维护伺服错误信号质量的磁盘，控制磁盘记录/再现装置的服务的方法，检测跟踪错误的方法和检测倾斜错误的方法
公开(公告)号：US06556521B1
公开(公告)日：2003-04-29
申请号：US09629050
申请日：2000-07-31
申请人： Seong-sin Joo , In-sik Park , Byung-in Ma , Chong-sam Chung , Jang-hoon Yoo , Jung-wan Ko , Kyung-geun Lee , Joong-eon Seo
发明人： Seong-sin Joo , In-sik Park , Byung-in Ma , Chong-sam Chung , Jang-hoon Yoo , Jung-wan Ko , Kyung-geun Lee , Joong-eon Seo
IPC分类号： G11B700
CPC分类号： G11B7/00718 , G11B7/0901 , G11B7/0938 , G11B7/0941 , G11B7/0956
摘要： A method of detecting a servo error, an apparatus therefor, a disk which maintains quantity of a servo error signal, a method of controlling a servo of an apparatus for recording data on and reproducing data from a disk, a method of detecting the tracking error, and a method of detecting tilt error of the apparatus. The apparatus for recording data on and reproducing data from the disk in which a recording area is divided into sectors, each sector has a header for indicating an address, each header has a first header and a second header which are recorded to deviate from the center of the track in opposite directions, and the first header and the second header have address areas in which the addresses of sectors are recorded and synchronous signal areas in which synchronous signals for detecting the address signals recorded in the address area are recorded, includes a reproducing signal generator, a sum signal RF_sum, and a push-pull signal RF_pp from an optical signal reflected from the disk, a header area detector, a first synchronous signal level detector, a second synchronous signal level detector, and a balance calculator for calculating the balance of the magnitude Ivfo1 of the first synchronous signal detected by the first synchronous signal level detector and the magnitude Ivfo3 of the second synchronous signal detected by the second synchronous signal level detector.
摘要翻译：一种检测伺服误差的方法，其装置，保持伺服误差信号量的盘，控制用于从盘记录数据和从盘再现数据的装置的伺服的方法，检测跟踪误差的方法以及检测装置的倾斜误差的方法。用于在盘中记录数据并从其再现数据的装置，其中记录区被划分为扇区，每个扇区具有用于指示地址的标题，每个标题具有被记录为偏离中心的第一标题和第二标题并且第一标题和第二标题具有其中记录了扇区的地址的地址区域，并且记录了用于检测记录在地址区域中的地址信号的同步信号的同步信号区域，包括再现信号发生器，和信号RF_sum和从盘反射的光信号的推挽信号RF_pp，标题区检测器，第一同步信号电平检测器，第二同步信号电平检测器和用于计算由第一同步信号电平检测器检测的第一同步信号的幅度Ivfo1的平衡和秒的幅度Ivfo3 由第二同步信号电平检测器检测到的同步信号。

39. 发明授权

US06198714B1 Optical pickup having an objective lens compatible with a plurality of optical disk formats 有权
标题翻译：具有与多个光盘格式兼容的物镜的光学拾取器
公开(公告)号：US06198714B1
公开(公告)日：2001-03-06
申请号：US09505155
申请日：2000-02-15
申请人： Jang-hoon Yoo , Chong-sam Chung , Chul-woo Lee , Kun-ho Cho
发明人： Jang-hoon Yoo , Chong-sam Chung , Chul-woo Lee , Kun-ho Cho
IPC分类号： G11B700
CPC分类号： G11B7/1353 , G11B7/126 , G11B7/127 , G11B7/131 , G11B7/1356 , G11B7/1367 , G11B7/1374 , G11B7/139 , G11B7/13922 , G11B2007/0006 , G11B2007/13727
摘要： An optical pickup compatible with a plurality of optical recording media each using light of a different wavelength. The optical pickup includes at least one light source, an objective lens having a function of focusing light emitted from the light source into the optimal light spot on an information recording surface of one of the plurality of the optical recording media, and a light detector to detect light transmitted through the objective lens after being reflected from the information recording surface of the optical recording medium on which the light spot is formed. The objective lens has an inner area, an annular lens area and an outer area such that the annular lens area divides the inner area from the outer area and has a ring shape centered at a vertex. The inner area, the annular lens area and the outer area have aspherical surface shapes to focus light transmitted through the inner area and the outer area into a single light spot by which information can be read from the information recording surface of a relatively thin first optical recording medium and scatter light transmitted through the annular lens area located between the inner area and the outer area so that information cannot be read from the information recording surface of the first optical recording medium, during reproduction of the first optical recording medium. The inner area and the annular lens area transmit light into a single light spot by which information can be read from the information recording surface of a relatively thick second optical recording medium and scatters light transmitted through the outer lens area so that information cannot be read from the information recording surface of the second optical recording medium, during reproduction of the second optical recording medium.
摘要翻译：一种与多个使用不同波长的光的多个光学记录介质兼容的光学拾取器。光拾取器包括至少一个光源，具有将从光源发射的光聚焦到多个光学记录介质之一的信息记录表面上的最佳光点中的功能的物镜，以及光检测器在从形成有光斑的光记录介质的信息记录面反射后，检测透过物镜的光。物镜具有内部区域，环形透镜区域和外部区域，使得环形透镜区域将内部区域与外部区域分开并且具有以顶点为中心的环形。内部区域，环形透镜区域和外部区域具有非球面形状，以将透过内部区域和外部区域的光聚焦成单个光点，通过该单个光点可以从相对薄的第一光学信息记录表面读取信息记录介质和透射通过位于内部区域和外部区域之间的环形透镜区域的散射光，使得在第一光学记录介质的再现期间不能从第一光学记录介质的信息记录表面读取信息。内部区域和环形透镜区域将光透射到单个光点中，通过该单个光点可以从相对较厚的第二光学记录介质的信息记录表面读取信息，并散射透过外部透镜区域的光，从而不能从在第二光学记录介质的再现期间，第二光学记录介质的信息记录表面。

40. 发明授权

US5907530A Optical pickup device 失效
标题翻译：光学拾取装置
公开(公告)号：US5907530A
公开(公告)日：1999-05-25
申请号：US708200
申请日：1996-09-06
申请人： Kun-ho Cho , Eung-ho Kim , Jang-hoon Yoo , Kyung-hwa Rim
发明人： Kun-ho Cho , Eung-ho Kim , Jang-hoon Yoo , Kyung-hwa Rim
IPC分类号： G02B3/10 , G11B7/00 , G11B7/0037 , G11B7/09 , G11B7/13 , G11B7/135
CPC分类号： G02B3/10 , G11B7/0909 , G11B7/133 , G11B7/1353 , G11B7/1365 , G11B7/1381 , G11B2007/0006 , G11B7/0037
摘要： An optical pickup device which is capable of reproducing and recording information from at least two discs having different thicknesses includes a light source, an objective lens provided along the light path from the light source facing the plane of a disc and having a predetermined effective diameter, a beam splitter provided between the objective lens and the light source, a photodetector for detecting the beam split from the light splitter and reflected from the disc, and light controller provided along the light path facing the photodetector lens for controlling the light of the intermediate region between near- and far axis regions of an incident light beam. The optical pickup device is simplified and the manufacturing cost therefor is low. Also, by reducing the spherical aberration effect for the light, discs having different thicknesses can be used in a single disc drive.
摘要翻译：能够从具有不同厚度的至少两个盘再现和记录信息的光学拾取装置包括光源，沿着从光源面向光盘的光源的光路设置并具有预定有效直径的物镜，设置在物镜和光源之间的分束器，用于检测从分光器分离并从盘反射的光束的光电检测器，以及沿着面向光电检测器透镜的光路设置的光控制器，用于控制中间区域的光在入射光束的近轴和远轴区域之间。光拾取装置简化，制造成本低。此外，通过减小光的球面像差效应，可以在单个盘驱动器中使用具有不同厚度的盘。

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