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71. 发明申请

US20090059752A1 OPTICAL DISC APPARATUS AND METHOD OF DRIVING THE SAME 有权
标题翻译：光盘设备及其驱动方法
公开(公告)号：US20090059752A1
公开(公告)日：2009-03-05
申请号：US12036474
申请日：2008-02-25
申请人： An-sik JEONG , Joon Jeong , Joong-gon Kim , Hyun-seok Yang , Chong-sam Chung , Noh-cheol Park , Kyung-geun Lee , Jin-kyung Lee , Jong-hyun Shin
发明人： An-sik JEONG , Joon Jeong , Joong-gon Kim , Hyun-seok Yang , Chong-sam Chung , Noh-cheol Park , Kyung-geun Lee , Jin-kyung Lee , Jong-hyun Shin
IPC分类号： G11B7/08 , G11B7/00
CPC分类号： G11B7/0945 , G11B7/08511 , G11B7/0917
摘要： An optical disc apparatus, and a method of driving the same, includes a light focusing element disposed to focus light emitted from a light source onto a disc; an actuator to move the light focusing element toward or away from the disc according to a voltage applied to the actuator; a light intensity detection unit to detect the intensity of light reflected from the disc ; a servo unit to generate a gap error signal and a third voltage, the third voltage being the sum of a first voltage and a second voltage, and to apply the generated third voltage to the actuator; and a control unit to control the servo unit to perform a gap pull-in operation when the light focusing element is moved toward the disc according to the gap error signal and the third voltage.
摘要翻译：光盘装置及其驱动方法包括：将从光源发射的光聚焦到光盘上的光聚焦元件; 致动器，用于根据施加到致动器的电压将光聚焦元件朝向或远离盘移动; 光度检测单元，用于检测从所述盘反射的光的强度; 产生间隙误差信号和第三电压的伺服单元，所述第三电压是第一电压和第二电压之和，并将所产生的第三电压施加到所述致动器; 以及控制单元，用于当所述光聚焦元件根据所述间隙误差信号和所述第三电压朝向所述盘移动时，控制所述伺服单元执行间隙拉入操作。

72. 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.

73. 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。

74. 发明授权

US07324424B2 Compatible optical pickup having diffractive device to correct chromatism and divergent lens to increase working distance 失效
$Compatible optical pickup having diffractive device to correct chromatism and divergent lens to increase working distance$
标题翻译：兼容的光学拾取器具有衍射装置以校正色差和发散透镜以增加工作距离
公开(公告)号：US07324424B2
公开(公告)日：2008-01-29
申请号：US10295044
申请日：2002-11-15
申请人： Tae-kyung Kim , Young-man Ahn , Chong-sam Chung , Hae-jung Suh , Jin-kyung Lee , Jong-bae Kim
发明人： Tae-kyung Kim , Young-man Ahn , Chong-sam Chung , Hae-jung Suh , Jin-kyung Lee , Jong-bae Kim
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/127 , G11B7/1367 , G11B7/1376 , G11B7/139 , G11B7/13922 , G11B2007/0006
摘要： A compatible optical pickup includes an optical disc, an objective lens, a diffractive device, and a divergent lens. The optical unit emits a short wavelength light beam corresponding to a high density optical disc and a long wavelength light beam corresponding to a low density optical disc. The objective lens forms a light spot on the high density optical disc and the low density optical disc and the diffractive device diffracts the short wavelength light beam to correct chromatism according to a change in a wavelength of the short wavelength light beam. The divergent lens refracts the long wavelength light beam toward the objective lens to increase a working distance with respect to the low density optical disc.
摘要翻译：兼容的光学拾取器包括光盘，物镜，衍射装置和发散透镜。光学单元发射对应于高密度光盘的短波长光束和对应于低密度光盘的长波长光束。物镜在高密度光盘上形成光点，低密度光盘和衍射装置衍射短波长光束，以根据短波长光束的波长变化校正色差。发散透镜将长波长光束折射到物镜以增加相对于低密度光盘的工作距离。

75. 发明授权

US07298675B2 Multilayer recording medium and optical pickup for recording and/or reproducing the same 失效
标题翻译：用于记录和/或再现的多层记录介质和光学拾取器
公开(公告)号：US07298675B2
公开(公告)日：2007-11-20
申请号：US11227912
申请日：2005-09-16
申请人： Tao Hong , Tae-kyung Kim , Chong-sam Chung
发明人： Tao Hong , Tae-kyung Kim , Chong-sam Chung
IPC分类号： G11B7/00
CPC分类号： G11B7/0903 , G11B7/131 , G11B2007/0013
摘要： An optical pickup for recording and/or reproducing data with respect to a multilayer recording medium having a plurality of recording layers, where the optical pickup includes a light source emitting a beam having a predetermined wavelength, a diffraction unit separating the beam emitted from the light source into a main beam and a sub-beam, and a photodetector having a main photodetector detecting a main beam reflected from the multilayer recording medium and a sub-photodetector detecting the sub-beam. In the optical pickup, the main photodetector and sub-photodetector are separated a predetermined distance from each other so that a beam spot formed by the beam reflected from a defocus recording layer is not detected by the sub-photodetector.
摘要翻译：一种用于相对于具有多个记录层的多层记录介质记录和/或再现数据的光学拾取器，其中光学拾取器包括发射具有预定波长的光束的光源，将从光发射的光束分离的衍射单元源到主光束和子光束，以及光检测器，其具有检测从多层记录介质反射的主光束的主光电检测器和检测子光束的子光电检测器。在光学拾取器中，主光电检测器和副光电检测器彼此隔开预定距离，使得由离焦记录层反射的光束形成的光束点不被副光电检测器检测。

76. 发明申请

US20070041287A1 Optical pickup apparatus capable of detecting and compensating for spherical aberration caused by thickness variation of recording layer 审中-公开
标题翻译：能够检测和补偿由记录层的厚度变化引起的球面像差的光学拾取装置
公开(公告)号：US20070041287A1
公开(公告)日：2007-02-22
申请号：US11496522
申请日：2006-08-01
申请人： Tao Hong , Tae-kyung Kim , Woo-seok Choi , Chong-sam Chung
发明人： Tao Hong , Tae-kyung Kim , Woo-seok Choi , Chong-sam Chung
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/0943 , G11B7/131 , G11B7/13927
摘要： An optical pickup apparatus, including a light source to emit light, an objective lens to form a light spot on an optical recording medium by focusing the light emitted from the light source, an optical division unit, disposed between the light source and the objective lens, to divide the light emitted from the light source into a main beam and two subbeams to form one main spot and two subspots on the optical recording medium, the optical division unit having a first area and a second area surrounding the first area, a detector to detect the amount of light of the main beam and the amount of light of the respective subbeams reflected from the optical recording medium, a beam splitter disposed between the light source and the objective lens to allow the light reflected from the optical recording medium to be directed to the detector, signal generating circuits to generate a tracking error signal (TES), a focusing error signal (FES), and a spherical aberration signal (SAS), respectively, in response to the output of the detector, and a spherical aberration compensation unit, disposed between the objective lens and the beam splitter, to compensate for spherical aberration using the SAS generated by the signal generating circuits.
摘要翻译：一种光拾取装置，包括用于发光的光源，通过聚焦从光源发射的光在光学记录介质上形成光斑的物镜，设置在光源和物镜之间的光学分割单元为了将从光源发射的光分成主光束和两个子光束，以在光记录介质上形成一个主光点和两个子光点，光分割单元具有第一区域和围绕第一区域的第二区域，检测器检测主光束的光量和从光记录介质反射的各子束的光量，设置在光源和物镜之间的分束器，以允许从光记录介质反射的光为指向检测器，信号发生电路分别产生跟踪误差信号（TES），聚焦误差信号（FES）和球面像差信号（SAS），并且配置在物镜和分束器之间的球面像差补偿单元，以使用由信号发生电路产生的SAS补偿球面像差。

77. 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.

78. 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。

79. 发明申请

US20060203680A1 Multilayer recording medium and method of manufacturing the same 失效
公开(公告)号：US20060203680A1
公开(公告)日：2006-09-14
申请号：US11290593
申请日：2005-12-01
申请人： Tao Hong , Chong-sam Chung , Tae-kyung Kim , Woo-seok Choi
发明人： Tao Hong , Chong-sam Chung , Tae-kyung Kim , Woo-seok Choi
IPC分类号： G11B7/20
CPC分类号： G11B7/26 , G11B7/24038 , G11B7/268
摘要： A multilayer recording medium that prevents deterioration of a signal characteristic due to a mirror effect that may occur between recording layers and a method of manufacturing the same, the multilayer recording medium having at least two recording layers, wherein a thickness of at least one spacer layer between adjacent recording layers is different from a thickness of the other spacer layers such that a beam focusing on a recording layer is prevented from focusing on another recording layer corresponding to a mirror layer due to reflection. In the multilayer recording medium, a mirror effect is greatly reduced. In addition, the thickness of only a spacer layer exerting the most significant influence on the mirror effect is changed to prevent the deterioration of signal quality due to the mirror effect, and therefore, the structure of a multilayer recording medium is simplified.

80. 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。

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