公开(公告)号：US20050018560A1

公开(公告)日：2005-01-27

申请号：US10897015

申请日：2004-07-23

申请人： Ui-yol Kim ,  Tae-kyung Kim ,  Chong-sam Chung ,  Pyong-yong Seong

发明人： Ui-yol Kim ,  Tae-kyung Kim ,  Chong-sam Chung ,  Pyong-yong Seong

IPC分类号： G11B7/00 ,  G11B7/125 ,  G11B7/135

CPC分类号： G11B7/1353 ,  G11B7/1275 ,  G11B7/1374 ,  G11B2007/0006

摘要： A compatible optical pickup including an optical unit and a focusing unit. The optical unit emits a short wavelength light for high-density recording media and a long wavelength light for low-density recording media, directs the short and long wavelength light to a recording medium, receives lights reflected by the recording medium, and detects an information reproduction signal and/or an error signal from the received lights. The focusing unit focuses light received from the optical unit to form a light spot on a recording surface of the recording medium, diffracts the short wavelength light into a zero order light and the long wavelength light into a second order light to be used as effective light for recording and/or reproduction. Thus, a high-density recording medium and a low-density recording medium having different thicknesses can be compatibly used.

摘要翻译： 一种兼容的光学拾取器，包括光学单元和聚焦单元。 光学单元发射用于高密度记录介质的短波长光和用于低密度记录介质的长波长光，将短波长和长波长光引导到记录介质，接收由记录介质反射的光，并检测信息 再现信号和/或来自接收到的光的误差信号。 聚焦单元将从光学单元接收的光聚焦在记录介质的记录表面上形成光点，将短波长的光衍射成零级光，将长波长的光衍射成二阶光，作为有效光 用于记录和/或再现。 因此，可以兼容使用具有不同厚度的高密度记录介质和低密度记录介质。

公开(公告)号：US5822135A

公开(公告)日：1998-10-13

申请号：US640474

申请日：1996-05-01

申请人： Chul-woo Lee ,  Dong-ho Shin ,  Kyung-hwa Rim ,  Chong-sam Chung ,  Kun-ho Cho ,  Pyong-yong Seong ,  Jang-hoon Yoo ,  Yong-hoon Lee

发明人： Chul-woo Lee ,  Dong-ho Shin ,  Kyung-hwa Rim ,  Chong-sam Chung ,  Kun-ho Cho ,  Pyong-yong Seong ,  Jang-hoon Yoo ,  Yong-hoon Lee

IPC分类号： B29D11/00 ,  G02B3/10 ,  G02B27/58 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/09 ,  G11B7/13 ,  G11B7/135 ,  G02B9/00

CPC分类号： G11B7/1353 ,  B29D11/00009 ,  G02B27/58 ,  G02B3/10 ,  G11B7/0909 ,  G11B7/133 ,  G11B7/1367 ,  G11B7/1374 ,  G11B7/1381 ,  G11B7/13922 ,  G11B2007/0006 ,  G11B2007/13727 ,  G11B7/0045 ,  G11B7/005 ,  Y10S425/808

摘要： A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in an intermediate region between near and far axes of an incident light beam, thus providing a simplified and inexpensive device for using discs of differing thickness in a single disc drive, by reducing the spherical aberration effect.

公开(公告)号：US08493831B2

公开(公告)日：2013-07-23

申请号：US10897015

申请日：2004-07-23

申请人： Ui-yol Kim ,  Tae-kyung Kim ,  Chong-sam Chung ,  Pyong-yong Seong

发明人： Ui-yol Kim ,  Tae-kyung Kim ,  Chong-sam Chung ,  Pyong-yong Seong

IPC分类号： G11B7/00

CPC分类号： G11B7/1353 ,  G11B7/1275 ,  G11B7/1374 ,  G11B2007/0006

摘要： A compatible optical pickup including an optical unit and a focusing unit. The optical unit emits a short wavelength light for high-density recording media and a long wavelength light for low-density recording media, directs the short and long wavelength light to a recording medium, receives lights reflected by the recording medium, and detects an information reproduction signal and/or an error signal from the received lights. The focusing unit focuses light received from the optical unit to form a light spot on a recording surface of the recording medium, diffracts the short wavelength light into a zero order light and the long wavelength light into a second order light to be used as effective light for recording and/or reproduction. Thus, a high-density recording medium and a low-density recording medium having different thicknesses can be compatibly used.

摘要翻译： 一种兼容的光学拾取器，包括光学单元和聚焦单元。 光学单元发射用于高密度记录介质的短波长光和用于低密度记录介质的长波长光，将短波长和长波长光引导到记录介质，接收由记录介质反射的光，并检测信息 再现信号和/或来自接收到的光的误差信号。 聚焦单元将从光学单元接收的光聚焦在记录介质的记录表面上形成光点，将短波长的光衍射成零级光，将长波长的光衍射成二阶光，作为有效光 用于记录和/或再现。 因此，可以兼容使用具有不同厚度的高密度记录介质和低密度记录介质。

公开(公告)号：US07068933B2

公开(公告)日：2006-06-27

申请号：US10197329

申请日：2002-07-18

申请人： Pyong-yong Seong ,  Jong-koog Lee ,  Kun-soo Kim ,  Yong-jun Cho ,  Sung-du Kwon

发明人： Pyong-yong Seong ,  Jong-koog Lee ,  Kun-soo Kim ,  Yong-jun Cho ,  Sung-du Kwon

IPC分类号： H04B10/00

CPC分类号： G11B7/1263 ,  G01J1/44 ,  G11B2007/0006

摘要： An apparatus and method for detecting beam power generated by a plurality of light sources, using a single device. The apparatus includes a light-receiving unit that receives the beam power generated by one of a plurality of light sources, and an amplifying unit that selects a gain, amplifies the beam power received by the light-receiving unit according to the selected gain, and outputs the beam power amplified as a detected beam power. According to the apparatus and method, received beam power (or amplification gain) is amplified by a gain determined according to the characteristics of the respective light sources. Thus, it is possible to provide the detected beam power in consideration of a sufficient dynamic range for the each light source, thereby realizing effective APC.

公开(公告)号：US20050185532A1

公开(公告)日：2005-08-25

申请号：US11043453

申请日：2005-01-27

申请人： Hyung-joo Kang ,  Byung-youn Song ,  Pyong-yong Seong ,  Dae-jong Jang

发明人： Hyung-joo Kang ,  Byung-youn Song ,  Pyong-yong Seong ,  Dae-jong Jang

IPC分类号： G11B7/085 ,  G11B7/00 ,  G11B7/09 ,  G11B7/095

CPC分类号： G11B7/0935 ,  G11B7/093 ,  G11B7/0933 ,  G11B7/0956

摘要： A magnetic circuit, an optical pickup actuator, an optical recording and/or reproducing apparatus using the magnetic circuit, and method of the same, wherein the magnetic circuit includes a plurality of focus coil units each of which includes a first focus coil and a second focus coil, and a magnet including a plurality of magnet portions which interact with the plurality of focus coil units and each of which is polarized in a direction opposite to adjacent magnet portions thereamong. Here, electromagnetic forces act on the first and second focus coils in each focus coil unit in a same direction in response to focus driving signals and in opposite directions in response to tilt driving signals, with the first and second focus coils in each focus coil unit have different effective coil lengths.

摘要翻译： 磁路，光拾取器致动器，使用磁路的光学记录和/或再现装置及其方法，其中磁路包括多个聚焦线圈单元，每个聚焦线圈单元包括第一聚焦线圈和第二聚焦线圈 聚焦线圈和包括与多个聚焦线圈单元相互作用的多个磁体部分的磁体，并且每个磁体在与其相邻的磁体部分相反的方向上被极化。 这里，响应于倾斜驱动信号，响应于聚焦驱动信号和相反方向，电磁力以相同的方向在每个聚焦线圈单元中的第一和第二聚焦线圈上作用，第一和第二聚焦线圈在每个聚焦线圈单元 具有不同的有效线圈长度。

公开(公告)号：US20050099920A1

公开(公告)日：2005-05-12

申请号：US10937255

申请日：2004-09-10

申请人： Won-ik Cho ,  Pyong-yong Seong ,  Dong-ryeol Lee ,  Ki-bok Kim

发明人： Won-ik Cho ,  Pyong-yong Seong ,  Dong-ryeol Lee ,  Ki-bok Kim

IPC分类号： G11B7/00 ,  G11B7/125 ,  G11B33/14 ,  H01L23/34 ,  H01L23/38

CPC分类号： G11B7/127 ,  H01L23/34 ,  H01L23/38 ,  H01L2924/0002 ,  H01L2924/00

摘要： A heat source having a device emitting heat, a case protecting and supporting the device, and a thermoelectric element absorbing the heat emitted from the device and dissipating the heat to an outside.

摘要翻译： 具有发热装置的热源，保护和支撑装置的壳体，以及吸收从装置发出的热并将热量散发到外部的热电元件。

公开(公告)号：US20050002303A1

公开(公告)日：2005-01-06

申请号：US10751647

申请日：2004-01-06

申请人： Sung-du Kwon ,  Jun-hyuk Lee ,  Pyong-yong Seong ,  Hyun-cheal Bang ,  Jong-koog Lee ,  Yong-jun Cho

发明人： Sung-du Kwon ,  Jun-hyuk Lee ,  Pyong-yong Seong ,  Hyun-cheal Bang ,  Jong-koog Lee ,  Yong-jun Cho

IPC分类号： G11B7/00 ,  G11B7/125 ,  H01S5/06

CPC分类号： G11B7/1263

摘要： In order to improve the frequency characteristic of a laser power monitor device and the precision of laser power control when low-speed recording is performed, there is provided a laser power monitor device for an optical recording and/or reproducing apparatus, the laser power monitor device including a photo diode unit to receive part of a light emitted from a laser diode and output a current proportional to optical power, and a monitor circuit to receive the current output from the photo diode unit, convert the received current into a voltage, and outputs the voltage to an automatic laser power control circuit, and the photo diode unit includes a plurality of photo diodes connected to the monitor circuit to supply current to the monitor circuit. The laser power monitor device further includes a switch unit, wherein the switch unit is located between the photo diode unit and the monitor circuit to receive a signal on a current recording speed and switch so that the number of photo diodes supplying current to the monitor circuit is reduced as the recording speed is increased.

摘要翻译： 为了提高激光功率监视装置的频率特性和进行低速记录时的激光功率控制的精度，提供了一种用于光学记录和/或再现装置的激光功率监视装置，激光功率监视器 该装置包括：光电二极管单元，用于接收从激光二极管发射的一部分光并输出与​​光功率成比例的电流;以及监测电路，用于接收来自光电二极管单元的电流输出，将接收的电流转换成电压; 将电压输出到自动激光功率控制电路，并且光电二极管单元包括连接到监视器电路的多个光电二极管，以向监控电路提供电流。 所述激光功率监视装置还包括开关单元，其中所述开关单元位于所述光电二极管单元和所述监视器电路之间，以接收当前记录速度的信号并进行切换，使得向所述监视器电路提供电流的光电二极管的数量 随着记录速度的增加而减小。

公开(公告)号：US06728177B2

公开(公告)日：2004-04-27

申请号：US09946814

申请日：2001-09-06

申请人： Pyong-yong Seong ,  Kyu-hwan Jung

发明人： Pyong-yong Seong ,  Kyu-hwan Jung

IPC分类号： G11B700

CPC分类号： G11B7/0045 ,  G11B7/0037

摘要： An optical disc recording method to record data on a disc using multiple speeds by dividing a disc region into an inner circumference region and an outer circumference region depending on radii of the disc, setting a multiple recording speed for each region; setting optical recording power in a lead-in region of the inner circumference region and a lead-out region of the outer circumference region, by performing optimum power controls therein; determining in which one of the divided regions data is to be recorded using an address detected from the disc, rotating the disc at the multiple recording speed set for the one region in which the data is to be recorded, and recording the data in the one region using the set optical recording power for the one region.

摘要翻译： 一种光盘记录方法，用于根据盘的半径将光盘区域划分成内周区域和外周区域，通过多个速度记录数据到盘上，为每个区域设定多个记录速度; 通过在其中执行最佳功率控制，在内周区域的引入区域和外周区域的引出区域中设置光学记录功率; 使用从盘检测到的地址来确定分割区域数据中的哪一个数据，以对要记录数据的一个区域设置的多个记录速度旋转盘，并将数据记录在一个中 区域，使用该区域的设定光学记录功率。

公开(公告)号：US06295255B1

公开(公告)日：2001-09-25

申请号：US09315989

申请日：1999-05-21

申请人： Young-sun Seo ,  Han-kook Choi ,  Pyong-yong Seong ,  In-sik Park ,  Hee-deuk Park ,  Young-min Cheong ,  Dong-ho Shin

发明人： Young-sun Seo ,  Han-kook Choi ,  Pyong-yong Seong ,  In-sik Park ,  Hee-deuk Park ,  Young-min Cheong ,  Dong-ho Shin

IPC分类号： G11B700

CPC分类号： G11B7/1362 ,  G11B7/0932 ,  G11B7/0935 ,  G11B7/0956

摘要： An optical pickup includes a rotary block rotatably installed on a fixed base; a holder integrally coupled to the rotary block; a bobbin supported by a wires of the holder to be movable; a base plate fixed to the fixed base and placed between the rotary block and the bobbin; an objective lens mounted in the bobbin, for focusing an incident light to form a spot of light on a recording medium; a focusing coil and tracking coils installed in the bobbin, serving as a current flow path for focusing and tracking operations; first magnets and first inner and outer yokes installed in the base plate, facing the focusing coil and the tracking coils, for producing magnetic fields perpendicular to the current flowing through the focusing coil and the tracking coils to produce an electromagnetic force for driving the bobbin; a fixed optical system for irradiating light toward the recording medium and receiving the light reflected by the recording medium and then passed through the objective lens; a reflecting mirror for changing the traveling path of the incident light, the reflecting mirror installed in the rotary block to be arranged between the objective lens and the fixed optical system; tilt coils serving as a current flow path, the tilt coils installed at both sides of the rotary block; and second magnets and second inner and outer yokes installed facing the tilt coils, for producing magnetic fields perpendicular to the current flowing through the tilt coils to produce an electromagnetic force for rotating the rotary block. Therefore, the tilt of the optical axis of the light incident onto and reflected by an optical disk through the reflecting mirror and the objective lens can be adjusted according to the tilt of the recording medium, such that the light is perpendicularly incident onto and reflected by the recording medium all the time.

摘要翻译： 光学拾取器包括可旋转地安装在固定基座上的旋转块; 一体地联接到所述旋转块的保持器; 由保持器的电线支撑的可绕动的线轴; 固定在所述固定基座上并设置在所述旋转块和所述筒管之间的基板; 安装在筒管中的物镜，用于聚焦入射光以在记录介质上形成光斑; 安装在筒管中的聚焦线圈和跟踪线圈，用作用于聚焦和跟踪操作的电流流动路径; 第一磁体和安装在基板中的面对聚焦线圈和跟踪线圈的第一内外轭，用于产生垂直于流过聚焦线圈和跟踪线圈的电流的磁场，以产生用于驱动线轴的电磁力; 用于向记录介质照射光并接收由记录介质反射的光然后通过物镜的固定光学系统; 用于改变入射光的行进路径的反射镜，安装在旋转块中以设置在物镜和固定光学系统之间的反射镜; 倾斜线圈用作电流流路，倾斜线圈安装在旋转块的两侧; 并且第二磁体和第二内外轭安装成面对倾斜线圈，用于产生垂直于流过倾斜线圈的电流的磁场，以产生用于旋转旋转块的电磁力。 因此，可以根据记录介质的倾斜度，通过反射镜和物镜入射到光盘并由其反射的光的光轴的倾斜，使得光垂直入射到其上并由 记录介质。

公开(公告)号：US06243216B1

公开(公告)日：2001-06-05

申请号：US08508250

申请日：1995-07-27

申请人： Jang-hoon Yoo ,  Pyong-yong Seong

发明人： Jang-hoon Yoo ,  Pyong-yong Seong

IPC分类号： G02B904

CPC分类号： G11B7/128 ,  G02F1/0102 ,  G02F1/0311 ,  G02F1/11

摘要： A fast responding optical modulating device for a high-density recording using in an optical pickup includes a light source, an optical modulator and a pair of lenses. The pair of lenses are so arranged that the distance between the lenses is shorter than the sum of each focal length of the lenses. The device can adjust an optical spot size at the center of the optical modulator by changing the position of the lenses without altering the whole length between the light source and optical modulator. Therefore, the device can increase the rise time as desired and the optical efficiency in optical modulation for high-density recording which uses a short wavelength light source, and moreover, has an effect of simplifying the high-density recording.

摘要翻译： 用于在光学拾取器中使用的高密度记录的快速响应光学调制装置包括光源，光学调制器和一对透镜。 这对透镜被布置成使得透镜之间的距离比透镜的每个焦距的总和短。 该装置可以通过改变透镜的位置而不改变光源和光调制器之间的整个长度来调节光调制器中心处的光点尺寸。 因此，该装置可以根据需要增加上升时间和使用短波长光源的高密度记录的光学调制中的光学效率，此外，具有简化高密度记录的效果。