专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明申请

US20050002312A1 Optical pickup apparatus and method therefor 有权
标题翻译：光拾取装置及其方法
公开(公告)号：US20050002312A1
公开(公告)日：2005-01-06
申请号：US10909347
申请日：2004-08-03
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： G11B7/005 , G11B7/095 , G11B7/135 , G11B7/00
CPC分类号： G11B7/1353 , G11B7/005 , G11B7/0948 , G11B7/0956 , G11B7/13927
摘要： An optical pickup apparatus for compensating for the deviation in the thickness of the optical disk and method therefor. The optical pickup includes a light source which emits light, an optical path changer which changes a proceeding path of incident light, an objective lens which focuses incident light to form a light spot on an optical disk, a light splitter, provided on the optical path between the light source and the optical path changer, which splits incident light into at least two light beams including first and second light beams so that at least two light spots including a main light spot having no aberration and an auxiliary light spot having a predetermined spherical aberration are formed on the optical disk, a photodetector including first and second light receiving portions which respectively receive the first and second incident light beams reflected by the optical disk and passing through the optical path changer, and a signal processing portion, including a delay which delays the phase of a second signal in order to synchronize a first signal and the second signal which are detected and optoelectrically converted by the first and second light receiving portions, to compensate for the deviation in the thickness of the optical disk.
摘要翻译：一种补偿光盘厚度偏差的光拾取装置及其方法。光拾取器包括发光的光源，改变入射光的行进路径的光路改变器，将入射光聚焦以在光盘上形成光点的物镜，设置在光路上的光分离器在光源和光路改变器之间，其将入射光分成包括第一和第二光束的至少两个光束，使得包括不具有像差的主光点和具有预定球面的辅助光点的至少两个光点在光盘上形成像差，包括分别接收由光盘反射并通过光路改变器的第一和第二入射光束的第一和第二光接收部分的光电检测器，以及包括延迟的信号处理部分延迟第二信号的相位，以便使检测到的第一信号和第二信号同步由第一和第二光接收部分光电转换，以补偿光盘厚度的偏差。

52. 发明授权

US06809999B1 Device and method for reducing crosstalk and intersymbol interference 有权
标题翻译：减少串扰和码间干扰的装置和方法
公开(公告)号：US06809999B1
公开(公告)日：2004-10-26
申请号：US09556311
申请日：2000-04-24
申请人： Tae-kyung Kim , Chong-sam Chung , Young-man Ahn , Hea-jung Seo
发明人： Tae-kyung Kim , Chong-sam Chung , Young-man Ahn , Hea-jung Seo
IPC分类号： G11B700
CPC分类号： G11B20/10 , G11B7/005 , G11B20/10009 , G11B2220/2579
摘要： A device for and method of reducing intersymbol interference (ISI) and/or crosstalk is disclosed. The ISI and crosstalk reducing device includes an optical detector which divides an optical signal reflected from an optical disk into central and peripheral parts in the tangential direction of the optical disk, and a correcting unit for controlling the gain value of a peripheral detection signal detected by the optical detector and adding the gain-controlled detection signal and a central detection signal to each other to provide an ISI corrected signal. Instead of using the existing waveform equalizer, the device uses a multiple-divided detection signal output from the optical detector to thereby obtain a jitter value of the same level as that obtained when the waveform equalizer is used. Further, in HD-DVD system requiring high density recording, it is possible to reduce crosstalk and ISI at the same time even when the high density recording causes crosstalk or interference between neighboring tracks.
摘要翻译：公开了一种减少符号间干扰（ISI）和/或串扰的装置和方法。 ISI和串扰降低装置包括：光检测器，其将从光盘反射的光信号沿光盘的切线方向划分为中心部分和外围部分;以及校正单元，用于控制由光盘检测到的外围检测信号的增益值，光检测器，并将增益控制的检测信号和中央检测信号相加，以提供ISI校正的信号。代替使用现有的波形均衡器，该器件使用从光检测器输出的多分频检测信号，从而获得与使用波形均衡器时获得的抖动值相同的抖动值。此外，在需要高密度记录的HD-DVD系统中，即使当高密度记录引起相邻轨道之间的串扰或干扰时，也可以同时减少串扰和ISI。

53. 发明授权

US06724710B2 Spherical abberation compensator and optical pickup using the same 有权
标题翻译：球面补偿器和光学拾取器使用相同
公开(公告)号：US06724710B2
公开(公告)日：2004-04-20
申请号：US10196139
申请日：2002-07-17
申请人： Chong-sam Chung , Young-man Ahn , Tae-kyung Kim , Hea-jung Suh , Jong-bae Kim
发明人： Chong-sam Chung , Young-man Ahn , Tae-kyung Kim , Hea-jung Suh , Jong-bae Kim
IPC分类号： G11B700
CPC分类号： G11B7/13927 , G11B7/0948 , G11B7/1369
摘要： A spherical aberration compensator for compensating for spherical aberration resulting from a thickness deviation of a recording medium. The spherical aberration compensator includes a central compensation which provides a phase distribution that is effective for compensating for spherical aberration resulting from the thickness deviation and a peripheral compensation portion which surrounds the central compensation portion and provides a phase distribution that is effective for reducing a worsening of the spherical aberration caused by axial displacement of an objective lens from the central compensation portion. The spherical aberration compensator effectively relieves an optical pickup having an objective lens of an NA of 0.7 or greater of worsening of the spherical aberration resulting from thickness deviation of the recording medium.
摘要翻译：一种用于补偿由记录介质的厚度偏差引起的球面像差的球面像差补偿器。球面像差补偿器包括中心补偿，其提供有效补偿由厚度偏差产生的球面像差的相位分布和围绕中心补偿部分的外围补偿部分，并提供相位分布，该相位分布对于减少恶化由物镜从中心补偿部分的轴向位移引起的球面像差。球面像差补偿器有效地缓解了由于记录介质的厚度偏差导致的具有0.7或更大的NA的物镜的差异导致的球面像差恶化的光学拾取器。

54. 发明授权

US10162256B2 Method and apparatus for capturing three dimensional image 有权
公开(公告)号：US10162256B2
公开(公告)日：2018-12-25
申请号：US13309189
申请日：2011-12-01
申请人： Takashima Masahiro , Bong-gi Kim , Tae-kyung Kim
发明人： Takashima Masahiro , Bong-gi Kim , Tae-kyung Kim
IPC分类号： H04N13/239 , G03B11/04 , G03B35/10 , H04N13/243
摘要： An apparatus for imaging a 3D image includes an opening through which an image passes and a plurality of lens components to obtain the image, and covers up the inside thereof visible through the opening by using a covering member.

55. 发明授权

US08213287B2 Apparatus and method for recording/reproducing holographic data 失效
标题翻译：用于记录/再现全息数据的装置和方法
公开(公告)号：US08213287B2
公开(公告)日：2012-07-03
申请号：US12136285
申请日：2008-06-10
申请人： Taek-seong Jeong , Jae-cheol Bae , Tae-kyung Kim , Sung-hee Hwang , Moon-Il Jung
发明人： Taek-seong Jeong , Jae-cheol Bae , Tae-kyung Kim , Sung-hee Hwang , Moon-Il Jung
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G11B7/0065 , G11B7/0908 , G11B7/1392
摘要： An optical pickup of a holographic data recording/reproducing apparatus that emits light to a reflective holographic data storage medium in which a substrate, a reflection layer, a recording layer, and a cover layer are sequentially stacked, and receives the emitted light, the optical pickup including: a first light source unit to emit, during a recording operation, a signal beam having a first polarization and a reference beam having a second polarization perpendicular to the first polarization along the same optical path; and a main lens unit having a refractivity that varies according to a polarization of a passing light, so as to cause the signal beam to be reflected from the reflection layer then focused on a focal point, and to cause the reference beam to pass through the cover layer then be directly focused on the focal point.
摘要翻译：一种全息数据记录/再现装置的光学拾取器，其向反射全息数据存储介质发射光，其中衬底，反射层，记录层和覆盖层顺序地堆叠，并且接收发射的光，光学拾取器包括：第一光源单元，在记录操作期间，沿着相同的光路发射具有第一偏振的信号光束和具有垂直于第一偏振的第二偏振的参考光束; 以及具有根据通过光的偏振而变化的折射率的主透镜单元，以使信号光从反射层反射然后聚焦在焦点上，并使参考光束通过覆盖层然后直接聚焦在焦点上。

56. 发明申请

US20090175149A1 HOLOGRAPHIC INFORMATION RECORDING AND/OR REPRODUCING APPARATUS 审中-公开
标题翻译：全息信息记录和/或复制设备
公开(公告)号：US20090175149A1
公开(公告)日：2009-07-09
申请号：US12211934
申请日：2008-09-17
申请人： Jae-cheol Bae , Taek-seong Jeong , Tae-kyung Kim
发明人： Jae-cheol Bae , Taek-seong Jeong , Tae-kyung Kim
IPC分类号： G11B7/00
CPC分类号： G11B7/1367 , G03H1/04 , G03H2240/51 , G11B7/0065 , G11B7/083 , G11B7/0909 , G11B7/1263 , G11B2007/13727
摘要： A holographic information recording and/or reproducing apparatus includes a light pickup optical system and a recording power control unit. The light pickup optical system illuminates reference light and signal light onto an information storing medium. The recording power control unit controls the light pickup optical system such that recording power of the reference light is the same as that of signal light.
摘要翻译：全息信息记录和/或再现装置包括光拾取光学系统和记录功率控制单元。光拾取光学系统将参考光照亮并将光信号发射到信息存储介质上。记录功率控制单元控制光拾取光学系统，使得参考光的记录功率与信号光的记录功率相同。

57. 发明授权

US07372794B2 Compatible optical pickup applying tilt to objective lens in proportion to radial movement of objective lens 失效
标题翻译：与物镜的径向移动成比例的兼容的光学拾取器对物镜施加倾斜
公开(公告)号：US07372794B2
公开(公告)日：2008-05-13
申请号：US10454838
申请日：2003-06-05
申请人： Tae-kyung Kim , Chong-sam Chung , Young-man Ahn , Byung-in Ma , Jong-bae Kim , Seok-jung Kim
发明人： Tae-kyung Kim , Chong-sam Chung , Young-man Ahn , Byung-in Ma , Jong-bae Kim , Seok-jung Kim
IPC分类号： G11B7/09
CPC分类号： G11B7/131 , G11B7/09 , G11B7/0901 , G11B2007/0006
摘要： A compatible optical pickup compatibly using a high density recording medium and at least one low density recording medium, includes an objective lens to form a light spot suitable for use on a recording surface of the high density recording medium by focusing a corresponding incident light beam with a high NA suitable for the high density recording medium and a light spot suitable for use on another recording surface of the low density recording medium by focusing another corresponding incident light beam, and an actuator provided to apply tilt to the objective lens. The light beam for the low density recording medium is incident on the objective lens as a divergent beam. When the objective lens is shifted in a radial direction, a tilt is applied to the objective lens corresponding to the shift.
摘要翻译：兼容地使用高密度记录介质和至少一种低密度记录介质的兼容光学拾取器包括：物镜，用于通过将相应的入射光束聚焦在该高分辨率记录介质的记录表面上形成适于使用的光点适合于高密度记录介质的高NA和通过聚焦另一相应的入射光束适用于低密度记录介质的另一个记录表面上的光点，以及设置成向物镜施加倾斜的致动器。用于低密度记录介质的光束作为发散光束入射在物镜上。当物镜沿径向移动时，对应于偏移的物镜施加倾斜。

58. 发明授权

US07266074B2 Optical disc apparatus and method of reproducing a wobble signal 失效
标题翻译：光盘装置和再现摆动信号的方法
公开(公告)号：US07266074B2
公开(公告)日：2007-09-04
申请号：US10183969
申请日：2002-06-28
申请人： Tae-kyung Kim , Young-man Ahn , Jong-bae Kim , Jin-kyung Lee , Chong-sam Chung
发明人： Tae-kyung Kim , Young-man Ahn , Jong-bae Kim , Jin-kyung Lee , Chong-sam Chung
IPC分类号： G11B7/005
CPC分类号： G11B27/24 , G11B7/0053 , G11B7/131 , G11B7/1381 , G11B7/24082 , G11B20/1403 , G11B27/3027 , G11B2220/216 , G11B2220/218 , G11B2220/2545 , G11B2220/2562
摘要： An optical disc apparatus and a wobble signal detection method in which a light beam projected onto an optical disc and reflected by the optical disc is divided into at least four light regions in the direction corresponding to the radial direction of the optical disc to detect the light regions, and a wobble signal is detected by performing a subtraction on first and second difference signals, the first difference signal obtained by performing a subtraction on detection signals for the inner light regions of the divided and/or detected light beam and the second difference signal obtained by performing a subtraction on detection signals for the outer light regions of the divided and/or detected light beam. Accordingly, when a wobble signal is reproduced from an optical disc manufactured by a wobble modulation manner, a wobble signal is prevented from being degraded due to the interference (cross talk) from the wobbles of adjacent tracks, even though the track pitch of the optical disc is reduced to improve the recording density.
摘要翻译：一种光盘装置和摆动信号检测方法，其中投射到光盘上并被光盘反射的光束在与光盘的径向对应的方向上被划分为至少四个光区域，以检测光区域，并且通过对第一和第二差分信号执行减法来检测摆动信号，通过对分割和/或检测光束的内部光区域的检测信号进行减法而得到的第一差分信号和第二差分信号通过对分割和/或检测到的光束的外部光区域的检测信号进行减法而获得。因此，当从由摆动调制方式制造的光盘再现摆动信号时，由于相邻轨道的摆动引起的干扰（串扰），摆动信号被防止掉，即使光学信号的轨道间距减少光盘以提高记录密度。

59. 发明授权

US07259533B2 Method of controlling motor drive speed 有权
标题翻译：控制电机驱动速度的方法
公开(公告)号：US07259533B2
公开(公告)日：2007-08-21
申请号：US11266353
申请日：2005-11-04
申请人： Soon-bae Yang , Tae-kyung Kim , Sung-min Park , Tae-won Kim
发明人： Soon-bae Yang , Tae-kyung Kim , Sung-min Park , Tae-won Kim
IPC分类号： F04B49/06 , F04B49/12 , H02P7/00
CPC分类号： H02P29/02 , F04C28/08 , F04C28/28 , F04C2240/403 , F04C2270/0525 , F04C2270/075 , F04C2270/10 , F04C2270/605
摘要： Disclosed is a method of controlling drive speed of a motor operating in overload conditions. The method includes the steps of: driving the motor at a predetermined reference speed; detecting phase voltage and phase current applied to the motor; determining whether or not the motor is operating in overload conditions based on the detected phase voltage and phase current; and controlling the motor according to whether or not the motor is operating in overload conditions. Accordingly, the present invention can prevent occurrence of over-current due to the instantaneous acceleration of the motor to a predetermined initial speed.
摘要翻译：公开了一种控制在过载条件下工作的电动机的驱动速度的方法。该方法包括以下步骤：以预定的参考速度驱动马达; 检测施加到电机的相电压和相电流; 基于检测到的相电压和相电流来确定电动机是否在过载状态下运行; 并根据电机是否在过载条件下运行来控制电动机。因此，本发明可以防止由于马达的瞬时加速到预定的初始速度的过电流的发生。

60. 发明授权

US07242659B2 Optical pickup for detecting thickness variation of a recording medium, and/or compensating for spherical aberration caused by thickness variation of a recording medium 有权
标题翻译：用于检测记录介质的厚度变化的光学拾取器和/或补偿由记录介质的厚度变化引起的球面像差
公开(公告)号：US07242659B2
公开(公告)日：2007-07-10
申请号：US11213996
申请日：2005-08-30
申请人： Chong-sam Chung , Young-man Ahn , Tae-kyung Kim , Hae-jung Suh
发明人： Chong-sam Chung , Young-man Ahn , Tae-kyung Kim , Hae-jung Suh
IPC分类号： G11B7/00
CPC分类号： G11B7/1369 , G11B7/0948 , G11B7/13927
摘要： An optical pickup for a recording medium includes a light beam division and detection unit including receiving portions dividing an incident light beam reflected on the recording medium into a first light beam portion and a second light beam portion around the first light beam portion and converting the first and second light beam portions into first and second detection signals, respectively. A thickness variation detection circuit detects a variation in thickness of the recording medium according to the first and second detection signals and outputs a thickness variation signal indicative thereof.
摘要翻译：用于记录介质的光学拾取器包括光束分割和检测单元，其包括将在记录介质上反射的入射光束分成第一光束部分和围绕第一光束部分的第二光束部分的接收部分，并将第一和第二光束部分分别成为第一和第二检测信号。厚度变化检测电路根据第一和第二检测信号检测记录介质的厚度变化，并输出表示其的厚度变化信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式