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1. 发明授权

US07149176B2 High-density optical disc 有权
公开(公告)号：US07149176B2
公开(公告)日：2006-12-12
申请号：US10268076
申请日：2002-10-10
申请人： Yong-hoon Lee , Han-kook Choi , Seok-jung Kim , In-sik Park , Chong-sam Chung
发明人： Yong-hoon Lee , Han-kook Choi , Seok-jung Kim , In-sik Park , Chong-sam Chung
IPC分类号： G11B7/24
CPC分类号： G11B7/24 , G11B7/007
摘要： A compact high-density optical disc capable of securing recording/reproducing characteristics and high-density recording capacity. The high-density optical disc has a whole diameter of 80 mm or less to 28 mm, a whole thickness in a range of 0.3–0.7 mm, and a position where data starts being recorded in a range of 27–45 mm of the diameter. Thus, an existing disc drive can be used, the size of the high-density optical disc can be reduced, and high-density recording capacity can be secured.

2. 发明授权

US07088666B2 High density optical disk having capacity of 25GB 有权
标题翻译：高密度光盘容量为25GB
公开(公告)号：US07088666B2
公开(公告)日：2006-08-08
申请号：US10188311
申请日：2002-07-03
申请人： Yong-hoon Lee , In-sik Park , Chong-sam Chung , Du-seop Yoon , Kyung-geun Lee , Heui-jong Kang , Han-kook Choi
发明人： Yong-hoon Lee , In-sik Park , Chong-sam Chung , Du-seop Yoon , Kyung-geun Lee , Heui-jong Kang , Han-kook Choi
IPC分类号： G11B7/24
CPC分类号： G11B7/0037 , G11B7/007
摘要： A high density disc having a data area which is set such that compatibility is secured in the same drive while maintaining a superior recording/reproducing feature, is disclosed.The high density disc has a center hole, a clamping area, a data area where user data is recorded, a lead in area located at the inner side of the data area, and a lead out area located at the outer side of the data area. In the high density disc in which the diameter of the center hole is 10 mm or more, the inner diameter of the clamping area is characteristically within a range of 20–26 mm. Also, the inner diameter of the data area is characteristically within a range of 35–40 mm.Therefore, while a conventional disc drive is still used, the size of the high density disc decreases and a recording capacity can be increased.
摘要翻译：具有数据区域的高密度盘，其设置为使得在保持优良的记录和/或再现特征的同一驱动器中确保兼容性。高密度盘具有中心孔，夹持区域，记录用户数据的数据区域，位于数据区域的内侧的导入区域和位于数据区域的外侧的引出区域数据区。在中心孔的直径为10mm以上的高密度盘中，夹持区域的内径特征在20-26mm的范围内。而且，数据区的内径特征在35-40mm的范围内。因此，尽管仍然使用常规的盘驱动器，但是高密度盘的尺寸减小，并且可以提高记录容量。

3. 发明申请

US20080074986A1 OPTICAL INFORMATION MEDIUM METHOD 审中-公开
公开(公告)号：US20080074986A1
公开(公告)日：2008-03-27
申请号：US11952332
申请日：2007-12-07
申请人： KYUNG-GEUN LEE , In-sik Park , Chong-sam Chung , Du-seop Yoon , Chang-min Park
发明人： KYUNG-GEUN LEE , In-sik Park , Chong-sam Chung , Du-seop Yoon , Chang-min Park
IPC分类号： G11B7/24
CPC分类号： G11B7/24079 , G11B7/00736 , G11B7/0906
摘要： A method relative to an optical information storage medium including a lead-in area, a lead-out area, and a user data area between the lead-in and lead-out areas and in which user data is recorded. Pits are formed in the lead-in area, the user data area, and the lead-out area, and a track pitch in all or a portion of the lead-in area is different from a track pitch in the remaining area of the optical information storage medium.

4. 发明申请

US20080068957A1 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：US20080068957A1
公开(公告)日：2008-03-20
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： G11B5/58
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。

5. 发明授权

US07120095B2 Apparatus for generating seek direction detecting signal using track error and track cross signals for an optical pickup 有权
标题翻译：用于使用轨道误差产生寻道方向检测信号并跟踪光学拾取器的交叉信号的装置
公开(公告)号：US07120095B2
公开(公告)日：2006-10-10
申请号：US09815345
申请日：2001-03-23
申请人： Byung-in Ma , Chong-sam Chung , In-sik Park , Byoung-ho Choi , Tae-yong Doh
发明人： Byung-in Ma , Chong-sam Chung , In-sik Park , Byoung-ho Choi , Tae-yong Doh
IPC分类号： G11B7/00
CPC分类号： G11B7/131 , G11B7/00718 , G11B7/0903
摘要： An apparatus to generate a seek direction detecting signal for an optical pickup to determine a position of a center of an optical spot focused on an optical disk relative to a center of a track, which focuses a main beam on a first optical detector and a sub-beam having a predetermined aberration in a radial direction on a second optical detector using a light dividing unit. The second optical detector has an inner and an outer pair of light receiving portions arranged along the radial direction, the inner pair being between the outer pair. A signal processing portion includes a first signal processing portion to detect a track error signal from signals output from the first optical detector, and a second signal processing portion to generate the seek direction detecting signal from signals detected by the second optical detector and the track error signal.
摘要翻译：一种用于产生用于光学拾取器的寻道方向检测信号以确定聚焦在光盘上的相对于轨道中心的光点的中心的位置的装置，其将主光束聚焦在第一光学检测器和子光束上光束在使用光分离单元的第二光学检测器上具有在径向方向上的预定像差。第二光学检测器具有沿着径向布置的内部和外部一对光接收部分，内侧对在外侧对之间。信号处理部分包括：第一信号处理部分，用于从第一光学检测器输出的信号中检测轨道误差信号;以及第二信号处理部分，用于从由第二光学检测器检测的信号和轨道误差产生寻道方向检测信号信号。

6. 发明授权

US07079471B1 OPTICAL PICKUP USING TWO LASER BEAM SOURCES OF DIFFERENT WAVELENGTHS FOR AN OPTICAL DISK DRIVE AND A CONVERTER TO OPTIMIZE A LIGHT BEAM REFLECTED OFF AN OPTICAL DISC FOR DETECTION BASED ON REFLECTED LIGHT BEAM WAVELENGTH 失效
标题翻译：光学拾取使用两个不同波长的激光束光源，用于光盘驱动器和转换器，以根据反射的光束波长优化用于检测光源的光束。
公开(公告)号：US07079471B1
公开(公告)日：2006-07-18
申请号：US09442095
申请日：1999-11-17
申请人： Chong-sam Chung , Chul-woo Lee , In-sik Park
发明人： Chong-sam Chung , Chul-woo Lee , In-sik Park
IPC分类号： G11B7/135
CPC分类号： G11B7/1376 , G11B7/1353 , G11B2007/0006
摘要： First and second laser beam sources generate first and second laser beams of different wavelengths, respectively. A first collimating lens diverges the first laser beam at a predetermined angle so as to permit a fracture surface aberration of the first laser beam to fall below a predetermined value when the first laser beam generated from the first laser beam source is collected on the signal layer of the optical disk. A light receiving lens collects the laser beam reflected from the signal layer of the optical disk on a photo diode in the form of an optical spot of a predetermined size. A holographic lens has a pattern by which the first laser beam is converted into parallel rays so that the size of a spot of the first laser beam becomes identical with the size of a spot of the second laser beam as projected on the detecting section. The pattern of the holographic lens has a concentric annular concave-convex portion in which a plurality of annular prominences and depressions are arranged, and the depression and the prominence have a width which is gradually decreased from a center toward a most outer circumference of the concentric annular concave-convex portion. Further, an inner surface of each prominence has a step-like shape formed with at least one step. Preferably, the number of the step ranges from three to five. Accordingly, diameters of the optical spots of the two laser beams of different wavelengths are almost identical when the laser beams are transmitted through the holographic lens so that the optical spots are formed on the photo diode. As a result, with one objective lens and photo diode, information of two types of optical disks for laser beams of different wave lengths can be reproduced.
摘要翻译：第一和第二激光束源分别产生不同波长的第一和第二激光束。第一准直透镜将第一激光束以预定角度分开，以便当从第一激光束源产生的第一激光束收集在信号层上时，允许第一激光束的断裂表面像差降至预定值以下的光盘。光接收透镜以预定尺寸的光点的形式收集从光盘的信号层反射的光电二极管上的激光束。全息透镜具有将第一激光束转换为平行光线的图案，使得第一激光束的光斑的尺寸与投影在检测部上的第二激光束的光斑尺寸相同。全息透镜的图案具有同心环状的凹凸部，在该同心环状的凹凸部中配置有多个环状突起和凹部，凹部和凸部的宽度从同心的中心向最外周逐渐减小环形凹凸部。此外，每个凸起的内表面具有形成有至少一个台阶的台阶状。优选地，步数为3至5。因此，当激光束透射通过全息透镜时，两个不同波长的激光束的光点的直径几乎相同，使得光斑形成在光电二极管上。结果，利用一个物镜和光电二极管，可以再现不同波长的激光束的两种类型的光盘的信息。

7. 发明申请

US20060092789A1 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：US20060092789A1
公开(公告)日：2006-05-04
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划分成多个扇区的装置，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报头区检测器，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;以及用于计算的平衡计算器幅度Ivfo 1和幅度Ivfo 3的平衡。

8. 发明授权

US06961292B2 Apparatus generating a seek direction detecting signal for an optical pickup using track cross and track error signals 失效
标题翻译：用于使用轨道交叉和轨道误差信号产生用于光学拾取器的寻道方向检测信号的装置
公开(公告)号：US06961292B2
公开(公告)日：2005-11-01
申请号：US09817754
申请日：2001-03-27
申请人： Byung-in Ma , Chong-sam Chung , In-sik Park , Byoung-ho Choi , Tae-yong Doh
发明人： Byung-in Ma , Chong-sam Chung , In-sik Park , Byoung-ho Choi , Tae-yong Doh
IPC分类号： G11B7/135 , G11B7/085 , G11B7/09 , G11B7/13
CPC分类号： G11B7/131 , G11B7/08505 , G11B7/0943 , G11B7/133 , G11B7/1353
摘要： An apparatus generating a seek direction detecting signal includes a light dividing unit dividing an incident light beam into at least two beams having a main beam and a sub-beam so that at least two beam spots including a main beam spot and at least one sub-beam spot having an optical aberration, can be focused in the track direction of an optical disk, the light dividing unit providing that the direction of the optical aberration of the sub-beam spot can be the tangential direction of the optical disk, an optical detector unit, a first signal processing portion processing a track error signal from signals output from the optical detector, a second signal processing portion processing a track cross signal from the signals output from the optical detector, and a generator generating the seek direction detecting signal from the phase difference between the track cross signal and the track error signal.
摘要翻译：产生搜索方向检测信号的装置包括：光分离单元，将入射光束分成至少两束具有主光束和子光束的光束，使得至少两个光束点包括主光束斑点和至少一个子光束点，具有光学像差的光束点可以在光盘的轨道方向上聚焦，所述光分割单元使得子光束点的光学像差的方向可以是光盘的切线方向，光学检测器单元，第一信号处理部分，从光检测器输出的信号处理轨道误差信号;第二信号处理部分，处理来自光检测器输出的信号的轨道交叉信号;以及发生器，其生成来自所述光检测器的寻道方向检测信号轨道交叉信号和轨道误差信号之间的相位差。

9. 发明申请

US20050152240A1 Error signal detection apparatus and method for optical recording/reproducing system 失效
标题翻译：用于光学记录/再现系统的误差信号检测装置和方法
公开(公告)号：US20050152240A1
公开(公告)日：2005-07-14
申请号：US11079109
申请日：2005-03-15
申请人： Byung-in Ma , Byoung-ho Choi , Chong-sam Chung , In-sik Park , Tae-yong Doh
发明人： Byung-in Ma , Byoung-ho Choi , Chong-sam Chung , In-sik Park , Tae-yong Doh
IPC分类号： G11B7/095 , G11B7/13 , G11B7/00
CPC分类号： G11B7/131 , G11B7/0956
摘要： An error signal detection method includes detecting light incident through an objective lens after having been reflected and diffracted from a recording medium, as eight light portions in a matrix including four inner light portions and four outer light portions, wherein the rows and columns of the matrix are parallel to the tangential and radial direction of the recording medium, respectively; calculating a first sum signal by summing a detection signal from at least one outer light portion located in a first diagonal direction, and a detection signal from an inner light portion located in a second diagonal direction; calculating second sum signal by summing a detection signal from an inner light portion located in the first diagonal direction, and a detection signal from an outer light portion located in the second diagonal direction; and comparing phases of the first and second sum signals to detect a tilt error signal.
摘要翻译：误差信号检测方法包括检测从记录介质反射和衍射之后通过物镜入射的光，作为包括四个内部光部分和四个外部光部分的矩阵中的八个光部分，其中矩阵的行和列分别与记录介质的切向和径向方向平行; 通过对来自位于第一对角线方向的至少一个外部光部分的检测信号和来自位于第二对角线方向的内部光部分的检测信号求和来计算第一和信号; 通过对来自位于第一对角线方向的内部光部分的检测信号和来自位于第二对角线方向的外部光部分的检测信号进行求和来计算第二和信号; 以及比较第一和第二和信号的相位以检测倾斜误差信号。

10. 发明授权

US06687201B2 Apparatus for generating seek direction detection signal 失效
标题翻译：用于产生寻道方向检测信号的装置
公开(公告)号：US06687201B2
公开(公告)日：2004-02-03
申请号：US09846264
申请日：2001-05-02
申请人： Byung-in Ma , Chong-sam Chung , In-sik Park , Byoung-ho Choi , Tae-yong Doh , Jin-hoon Jeon
发明人： Byung-in Ma , Chong-sam Chung , In-sik Park , Byoung-ho Choi , Tae-yong Doh , Jin-hoon Jeon
IPC分类号： G11B700
CPC分类号： G11B7/1353 , G11B7/00718 , G11B7/08505 , G11B7/0903 , G11B7/0943 , G11B7/0956 , G11B7/131 , G11B7/13922 , G11B7/1398
摘要： An apparatus for use in an optical disc includes an optical disc and an optical branching unit irradiating a main light beam and a sub-light beam, wherein the sub-light beam includes a optical aberration in a direction on a track of the optical disc. The apparatus further includes a photodetector including a plurality of portions receiving and processing the main light beam and a plurality of portions receiving and processing the sub-light beam. A track error signal detector detects a track error signal from the portions receiving the main light beam. A track cross signal detector detects a track cross signal from the portions receiving the main light beam and from the portions receiving the sub-light beam. A signal processor further compares the track error signal with the track cross signal to detect the seek direction of a light spot formed on the optical disc.
摘要翻译：用于光盘的装置包括光盘和照射主光束和副光束的光分支单元，其中副光束包括在光盘的轨道上的方向上的光学像差。该装置还包括一个光电检测器，它包括接收和处理主光束的多个部分和接收和处理子光束的多个部分。轨道误差信号检测器从接收主光束的部分检测轨道误差信号。轨道交叉信号检测器检测来自接收主光束的部分和接收子光束的部分的轨道交叉信号。信号处理器还将轨道误差信号与轨道交叉信号进行比较，以检测形成在光盘上的光点的寻道方向。

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