公开(公告)号：US06396638B1

公开(公告)日：2002-05-28

申请号：US09607928

申请日：2000-06-30

申请人： Jang-hoon Yoo ,  Kun-ho Cho ,  Seung-tae Jung ,  Chul-woo Lee ,  Joong-eon Seo ,  Dong-ho Shin

发明人： Jang-hoon Yoo ,  Kun-ho Cho ,  Seung-tae Jung ,  Chul-woo Lee ,  Joong-eon Seo ,  Dong-ho Shin

IPC分类号： G02B2714

CPC分类号： B82Y10/00 ,  G11B7/08564 ,  G11B7/1356 ,  G11B7/139 ,  G11B11/10543 ,  G11B11/10576 ,  G11B2007/13725

摘要： An optical pickup device includes a light source for generating light, a light path changing means for changing the traveling path of incident light, an objective lens for focusing incident light to form a light spot on a recording medium and having an incidence region of a predetermined size, a tracking mirror disposed on the light path between the light path changing means and the objective lens, for reflecting incident light emitted from the light source so that the light spot traces proper track positions of the recording medium, a lens unit consisting of at least two lenses which allow the light reflected from the tracking mirror to be incident on the incidence region of the objective lens, and a photo detecting unit for receiving light reflected from the recording medium and having passed through the objective lens and the light path changing means. Since the optical pickup device performs tracking by adjusting the reflection direction of incident light by means of a tracking mirror with an objective lens fixed, a tracking error signal offset due to movement of the objective lens is not generated, thereby enabling stable tracking.

摘要翻译： 一种光拾取装置，包括用于产生光的光源，用于改变入射光的行进路径的光路改变装置，用于聚焦入射光以在记录介质上形成光点并具有预定的入射区域的入射区域的物镜 尺寸，设置在光路改变装置和物镜之间的光路上的跟踪镜，用于反射从光源发射的入射光，使得光斑跟踪记录介质的正确轨道位置，由...组成的透镜单元 允许从跟踪反射镜反射的光入射到物镜的入射区域的至少两个透镜，以及用于接收从记录介质反射并且已经通过物镜并且通过光路改变装置的光的光检测单元 。 由于光学拾取装置通过利用物镜固定的跟踪反射镜调节入射光的反射方向进行跟踪，所以不会产生由于物镜的移动导致的跟踪误差信号偏移，从而能够进行稳定的跟踪。

公开(公告)号：US06400666B1

公开(公告)日：2002-06-04

申请号：US09635520

申请日：2000-08-09

申请人： Jang-hoon Yoo ,  Kun-ho Cho ,  Yong-hoon Lee ,  Seok-jung Kim ,  Seung-tae Jung ,  Chul-woo Lee ,  Joong-eon Seo

发明人： Jang-hoon Yoo ,  Kun-ho Cho ,  Yong-hoon Lee ,  Seok-jung Kim ,  Seung-tae Jung ,  Chul-woo Lee ,  Joong-eon Seo

IPC分类号： G11B7095

CPC分类号： G11B7/1353 ,  G11B7/0956

摘要： An optical pickup device includes a light source for generating and emitting light, optical path changing means for changing a proceeding path of incident light, an objective lens for focusing incident light on a recording medium which has a recording surface where information is recorded and a protection layer, at the side where light is input, for protecting the recording surface, a main photodetector for detecting the information signal and/or an error signal by receiving the light reflected by the recording surface of the recording medium and passing through the objective lens and the optical path changing means, and an inclination detecting unit for detecting inclination of the recording medium by receiving the light emitted from the light source and reflected by the surface of the protection layer or the recording surface of the recording medium. Thus, since the inclination of the recording medium is detected using the light emitted from the light source and reflected by the surface of the protection layer or the recording surface of the recording medium, without an additional tilt sensor, the number of parts is reduced and the structure of the device is simplified.

摘要翻译： 一种光拾取装置，包括用于产生和发光的光源，用于改变入射光的行进路径的光路改变装置，用于将入射光聚焦在具有记录信息的记录表面的记录介质上的物镜和保护 层，在输入光的一侧用于保护记录表面;主光电检测器，用于通过接收由记录介质的记录表面反射并穿过物镜的光检测信息信号和/或误差信号;以及 光路改变装置和倾斜检测单元，用于通过接收从光源发射并被保护层的表面或记录介质的记录表面反射的光来检测记录介质的倾斜度。 因此，由于使用从光源发出并由保护层的表面或记录介质的记录表面反射的光来检测记录介质的倾斜度，所以没有附加的倾斜传感器，部件的数量减少，并且 简化了设备的结构。

公开(公告)号：US06657942B2

公开(公告)日：2003-12-02

申请号：US09778856

申请日：2001-02-08

申请人： Chul-woo Lee ,  Joong-eon Seo ,  Seung-tae Jung ,  Myong-do Ro ,  Kun-ho Cho ,  Dong-seob Jang ,  Jang-hoon Yoo ,  Dae-sik Kim

发明人： Chul-woo Lee ,  Joong-eon Seo ,  Seung-tae Jung ,  Myong-do Ro ,  Kun-ho Cho ,  Dong-seob Jang ,  Jang-hoon Yoo ,  Dae-sik Kim

IPC分类号： G11B700

CPC分类号： G11B7/1356 ,  G11B7/08576 ,  G11B7/0908 ,  G11B7/122 ,  G11B7/1362 ,  G11B7/1376 ,  G11B7/1384 ,  G11B7/24

摘要： A swing-arm type optical recording and reproducing apparatus and an optical disk applicable to the same. The optical disk includes a substrate having an information recording surface to record and reproduce an information signal, and a protective layer which is provided on the information recording surface and whose surface facing a slider is a flat even surface so that variations in a floating height of the slider can be reduced. The optical recording and reproducing apparatus further includes, an optical head having a light source provided at a swing arm to emit light of a predetermined wavelength; an optical path changing means provided in the optical path of the light emitted from the light source for changing the proceeding path of incident light; a collimating lens installed at the slider to preliminarily converge the light emitted from the light source and entering via the optical path changing means; an objective lens installed at the slider to converge the light which is emitted from the light source and enters via the optical path changing means to form an optical spot on the optical disk; and a photodetector to receive the light which is reflected from the optical disk and enters via the objective lens, the collimating lens, and the optical path changing means. The optical head detects an information signal and an error signal in order to reduce defocus due to variations in ambient temperature and variations in the wavelength of the light of the light source.

摘要翻译： 一种摆臂式光学记录和再现装置以及可应用于其的光盘。 光盘包括具有信息记录表面以记录和再现信息信号的基板，以及设置在信息记录表面上并且其面向滑块的表面是平坦均匀表面的保护层，使得浮动高度的变化 滑块可以减少。 光学记录和再现装置还包括：光头，其具有设置在摆臂处以发射预定波长的光的光源; 光路改变装置，设置在从光源发射的光的光路中，用于改变入射光的行进路径; 准直透镜，安装在滑块上，以预先会聚从光源射出的光并通过光路改变装置进入; 安装在滑块上的物镜，其会聚从光源射出的光，经由光路改变装置进入，以在光盘上形成光点; 以及光电检测器，用于接收从光盘反射并经由物镜，准直透镜和光路改变装置进入的光。 光头检测信息信号和误差信号，以便减少由于环境温度的变化和光源的光的波长变化引起的散焦。

公开(公告)号：US07590034B2

公开(公告)日：2009-09-15

申请号：US11944863

申请日：2007-11-26

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： 一种用于在盘中记录数据并将数据从记录区域划分成扇区的装置，包括用于产生包括径向对的和信号V1和V2的再现信号的再现信号发生器，和信号RF_sum和推送 从光盘反射的光信号的信号RF_pp，用于产生包含来自重放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， 第一头部与头部区域信号同步;第二同步信号电平检测器，用于通过与头部区域信号同步来检测第二个头部中的第二同步信号的幅度Ivfo3;以及平衡计算器， 幅度Ivfo1和幅度Ivfo3。

公开(公告)号：US07167424B2

公开(公告)日：2007-01-23

申请号：US10385472

申请日：2003-03-12

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： 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 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 received from the reproducing signal generator, a first synchronous signal level detector for receiving the output of the reproducing signal generator and detecting a magnitude Ivfo1 of a first synchronous signal in the first header by being synchronized with the header area signal received from the header area detector, a second synchronous signal level detector for receiving the output of the reproducing signal generator and detecting a magnitude Ivfo3 of a second synchronous signal in the second header by being synchronized with the header area signal received from the header area 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. As a result, it is possible for the recording/reproducing apparatus to stably control a servo therein and maintain an optimal recording/reproducing state since the apparatus for detecting the servo error correctly detects the servo error state of the disk.

公开(公告)号：US07110334B2

公开(公告)日：2006-09-19

申请号：US11095481

申请日：2005-04-01

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： G11B5/09 ,  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.

公开(公告)号：US06556520B1

公开(公告)日：2003-04-29

申请号：US09629049

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 disk, a header area detector, a first synchronous signal level detector a first, 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，和信号盘，标题区检测器，第一同步信号电平检测器，第一，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的平衡的平衡计算器 同步信号电平检测器和由第二同步信号电平检测的第二同步信号的幅度Ivfo3 探测器。

公开(公告)号：US20050169129A1

公开(公告)日：2005-08-04

申请号：US11095481

申请日：2005-04-01

申请人： Seong-sin Joo ,  In-sik Park ,  Byung-in Na ,  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 Na ,  Chong-sam Chung ,  Jang-hoon Yoo ,  Jung-wan Ko ,  Kyung-geun Lee ,  Joong-eon Seo

IPC分类号： G11B7/24 ,  G11B7/00 ,  G11B7/007 ,  G11B7/09 ,  G11B7/095 ,  G11B20/12 ,  G11B21/10

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。

公开(公告)号：US06721243B2

公开(公告)日：2004-04-13

申请号：US10378904

申请日：2003-03-05

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. As a result, it is possible for the recording/reproducing apparatus to stably control a servo therein and maintain an optimal recording/reproducing state since the apparatus for detecting the servo error correctly detects the servo error state of the disk.

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和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。 结果，由于用于检测伺服误差的装置正确地检测到盘的伺服错误状态，所以记录/再现装置可以稳定地控制其中的伺服并保持最佳的记录/再现状态。

公开(公告)号：US06469979B1

公开(公告)日：2002-10-22

申请号：US09385415

申请日：1999-08-30

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 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 received from the reproducing signal generator, a first synchronous signal level detector for receiving the output of the reproducing signal generator and detecting a magnitude Ivfo1 of a first synchronous signal in the first header by being synchronized with the header area signal received from the header area detector, a second synchronous signal level detector for receiving the output of the reproducing signal generator and detecting a magnitude Ivfo3 of a second synchronous signal in the second header by being synchronized with the header area signal received from the header area 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. As a result, it is possible for the recording/reproducing apparatus to stably control a servo therein and maintain an optimal recording/reproducing state since the apparatus for detecting the servo error correctly detects the servo error state of the disk.