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。

52. 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.

53. 发明授权

US07567493B2 Multilayer recording medium and method of manufacturing the same 失效
标题翻译：多层记录介质及其制造方法
公开(公告)号：US07567493B2
公开(公告)日：2009-07-28
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 , G11B7/26
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.
摘要翻译：一种防止由于记录层之间可能发生的镜面效应引起的信号特性劣化的多层记录介质及其制造方法，所述多层记录介质具有至少两个记录层，其中至少一个间隔层的厚度相邻记录层之间的距离不同于其它间隔层的厚度，从而防止聚焦在记录层上的光束聚焦于由于反射而对应于镜层的另一个记录层。在多层记录介质中，镜面效果大大降低。此外，仅改变对镜效应产生最重要影响的间隔层的厚度，以防止由于镜面效应引起的信号质量的劣化，因此简化了多层记录介质的结构。

54. 发明授权

US07423700B2 Liquid crystal device for compensating for aberration, optical pickup including liquid crystal device, and optical recording and/or reproducing apparatus employing optical pickup 失效
标题翻译：用于补偿像差的液晶装置，包括液晶装置的光学拾取器以及采用光学拾取器的光学记录和/或再现装置
公开(公告)号：US07423700B2
公开(公告)日：2008-09-09
申请号：US11324466
申请日：2006-01-04
申请人： Tae-kyung Kim , Hee-kyung Kim , Woo-seok Choi
发明人： Tae-kyung Kim , Hee-kyung Kim , Woo-seok Choi
IPC分类号： G02F1/13
CPC分类号： G11B7/13927 , G02B5/3016 , G11B7/1369
摘要： Provided are an aberration-compensating liquid crystal device, a method of manufacturing the same, an optical pickup including the liquid crystal device, and an optical recording and/or reproducing apparatus employing the optical pickup. The method of manufacturing an aberration-compensating liquid crystal device comprises: positioning a gray scale mask having an absorption rate distribution corresponding to that of aberrations to be corrected on a liquid crystal cell containing a mixture of liquid crystals and monomers injected between a pair of transparent substrates; and irradiating the liquid crystal cell on which the gray scale mask has been positioned with UV light so that the monomers undergo photopolymerization into polymer and phase separation into a polymer-existing region and a liquid crystal-existing region, thereby forming a liquid crystal layer having a phase difference distribution corresponding to that of aberrations to be corrected.
摘要翻译：提供了一种像差补偿液晶装置，其制造方法，包括液晶装置的光学拾取器以及采用光学拾取器的光学记录和/或再现装置。制造像差补偿液晶装置的方法包括：将具有与待校正的像差的吸收率分布相对应的吸收率分布的灰度掩模定位在液晶单元上，所述液晶单元含有液晶和单体之间的混合物，底物; 并用紫外光照射其上已经定位了灰度掩模的液晶单元，使得单体进行光聚合成聚合物和相分离成聚合物存在区域和液晶存在区域，由此形成液晶层，其具有与要校正的像差的相位差分布相对应。

55. 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。

56. 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。

57. 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。

58. 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。

59. 发明申请

US20060119302A1 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：US20060119302A1
公开(公告)日：2006-06-08
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： 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

US06987724B2 Optical pickup device having chromatic aberration correction lens 有权
标题翻译：具有色差校正透镜的光学拾取装置
公开(公告)号：US06987724B2
公开(公告)日：2006-01-17
申请号：US09883492
申请日：2001-06-19
申请人： Tae-kyung Kim , Young-man Ahn , Chong-sam Chung , Hea-jung Suh
发明人： Tae-kyung Kim , Young-man Ahn , Chong-sam Chung , Hea-jung Suh
IPC分类号： G11B7/00 , G11B7/135
CPC分类号： G11B7/13922 , G02B27/0025 , G11B7/1378 , G11B2007/13727
摘要： An optical pickup device includes a light source to emit light, an objective lens to focus the light on a recording medium to form a light spot, an optical path changer on an optical path between the light source and the objective lens to change the path of incident light, a chromatic aberration correction lens disposed on an optical path between the light source and the objective lens, and a photodetector to receive light which is reflected from the recording medium and is then incident thereon through the optical path changer. The chromatic aberration correction lens corrects a chromatic aberration occurring due to a change in the wavelength and/or due to an increase in a wavelength bandwidth of the light. The chromatic aberration correction lens includes at least two lenses such that a lens having a positive power and a lens having a negative power are adjacent to each other.
摘要翻译：一种光学拾取装置，包括用于发光的光源，用于将光聚焦在记录介质上以形成光点的物镜，在光源和物镜之间的光路上的光路改变器，入射光，设置在光源和物镜之间的光路上的色差校正透镜，以及光接收器，用于接收从记录介质反射然后通过光路变换器入射到其上的光。色差校正透镜校正由于波长的变化和/或由于光的波长带宽的增加而发生的色像差。色像差校正透镜包括至少两个透镜，使得具有正光焦度的透镜和具有负光焦度的透镜彼此相邻。

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