公开(公告)号：US20110141869A1

公开(公告)日：2011-06-16

申请号：US12963785

申请日：2010-12-09

申请人： Ui-yol KIM ,  Yong-jae Lee ,  Pyong-yong Seong ,  Hong-kuk Kim

发明人： Ui-yol KIM ,  Yong-jae Lee ,  Pyong-yong Seong ,  Hong-kuk Kim

IPC分类号： G11B7/00 ,  H01L27/14

CPC分类号： G11B7/131 ,  G11B2007/0006

摘要： An optical pickup, photodetector, and optical drive adopting the optical pickup are provided. The optical pickup may include a light emitting system having a plurality of light sources corresponding to a plurality of mediums a light receiving system including a photodetector for converting light reflected from a medium into an electrical signal. The photodetector may include first and second light receiving sensors corresponding to the plurality of mediums, each of the first and second light receiving sensors comprising a plurality of regions, each region comprising a plurality of sectors. The plurality of regions of the first and second light receiving sensors may include shared sectors that are shared by the first and second light receiving sensors and exclusive sectors that are exclusively used in the first light receiving sensor or the second light receiving sensor.

摘要翻译： 提供采用光学拾取器的光学拾取器，光电检测器和光学驱动器。 光拾取器可以包括具有对应于多个介质的多个光源的发光系统，光接收系统包括用于将从介质反射的光转换成电信号的光电检测器。 光电检测器可以包括对应于多个介质的第一和第二光接收传感器，第一和第二光接收传感器中的每一个包括多个区域，每个区域包括多个扇区。 第一和第二光接收传感器的多个区域可以包括由第一和第二光接收传感器共享的共享扇区和专门用于第一光接收传感器或第二光接收传感器的专用扇区。

公开(公告)号：US08416672B2

公开(公告)日：2013-04-09

申请号：US12963785

申请日：2010-12-09

申请人： Ui-yol Kim ,  Yong-jae Lee ,  Pyong-yong Seong ,  Hong-kuk Kim

发明人： Ui-yol Kim ,  Yong-jae Lee ,  Pyong-yong Seong ,  Hong-kuk Kim

IPC分类号： G11B7/13

CPC分类号： G11B7/131 ,  G11B2007/0006

摘要： An optical pickup, photodetector, and optical drive adopting the optical pickup are provided. The optical pickup may include a light emitting system having a plurality of light sources corresponding to a plurality of mediums a light receiving system including a photodetector for converting light reflected from a medium into an electrical signal. The photodetector may include first and second light receiving sensors corresponding to the plurality of mediums, each of the first and second light receiving sensors comprising a plurality of regions, each region comprising a plurality of sectors. The plurality of regions of the first and second light receiving sensors may include shared sectors that are shared by the first and second light receiving sensors and exclusive sectors that are exclusively used in the first light receiving sensor or the second light receiving sensor.

摘要翻译： 提供采用光学拾取器的光学拾取器，光电检测器和光学驱动器。 光拾取器可以包括具有对应于多个介质的多个光源的发光系统，光接收系统包括用于将从介质反射的光转换成电信号的光电检测器。 光电检测器可以包括对应于多个介质的第一和第二光接收传感器，第一和第二光接收传感器中的每一个包括多个区域，每个区域包括多个扇区。 第一和第二光接收传感器的多个区域可以包括由第一和第二光接收传感器共享的共享扇区和专门用于第一光接收传感器或第二光接收传感器的专用扇区。

公开(公告)号：US20120113774A1

公开(公告)日：2012-05-10

申请号：US13289376

申请日：2011-11-04

申请人： Hong-kuk Kim ,  Jong-hwa Yu

发明人： Hong-kuk Kim ,  Jong-hwa Yu

IPC分类号： G11B7/00

CPC分类号： G11B7/1263

摘要： An optical information storage medium system is provided. The optical information storage medium system includes an optical pickup, which comprises a photo-detector configured to control light power detected by receiving a portion of light emitted from a light source and obtains an output signal proportional to output light power of the light source from a signal detected by the photo-detector, and a signal processor configured to signal-process the output signal input from the optical pickup. The signal processor includes a sensitivity acquisition unit configured to acquire a sensitivity value of the photo-detector, a gain calculator configured to calculate a target gain value to be used in comparing the sensitivity value of the photo-detector, which is acquired by the sensitivity acquisition unit, with a target sensitivity value to be used by the optical information storage medium system, and a gain adjustment unit.

摘要翻译： 提供光信息存储介质系统。 光学信息存储介质系统包括光学拾取器，其包括光电检测器，其被配置为通过接收从光源发射的光的一部分来控制检测的光功率，并且获得与来自光源的光源的输出光功率成比例的输出信号 信号由光检测器检测;以及信号处理器，被配置为对从光学拾取器输入的输出信号进行信号处理。 所述信号处理器包括被配置为获取所述光检测器的灵敏度值的灵敏度获取单元，被配置为计算用于比较所述光检测器的灵敏度值所使用的灵敏度值的目标增益值的增益计算器， 获取单元，具有由光学信息存储介质系统使用的目标灵敏度值和增益调整单元。

公开(公告)号：US20050163019A1

公开(公告)日：2005-07-28

申请号：US10909302

申请日：2004-08-03

申请人： Hong-kuk Kim ,  Chul-ho Jeon ,  Myoung-cher Cho

发明人： Hong-kuk Kim ,  Chul-ho Jeon ,  Myoung-cher Cho

IPC分类号： H01L31/10 ,  G11B7/00 ,  G11B7/125 ,  G11B7/13

CPC分类号： G11B7/1263 ,  G11B7/13

摘要： An optical pick up, including: a laser diode which outputs a light in response to an input current; a photo diode which receives the light and outputs a voltage; a digital potentiometer which adjusts the voltage output by the photo diode according to a voltage adjusting signal; and a controller which outputs the input current, sets a first reference voltage to be outputted by the photo diode according to the light, and outputs the voltage adjusting signal to the digital potentiometer according to a difference between the output voltage and the reference voltage.

摘要翻译： 一种光学拾取器，包括：激光二极管，其响应于输入电流输出光; 接收光并输出电压的光电二极管; 数字电位器，其根据电压调节信号调整光电二极管的电压输出; 输出输入电流的控制器，根据光设定要由光电二极管输出的第一参考电压，并根据输出电压和参考电压之间的差，将电压调节信号输出到数字电位器。

公开(公告)号：US08913469B2

公开(公告)日：2014-12-16

申请号：US13289376

申请日：2011-11-04

申请人： Hong-kuk Kim ,  Jong-hwa Yu

发明人： Hong-kuk Kim ,  Jong-hwa Yu

IPC分类号： G02F1/13 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/1263

CPC分类号： G11B7/1263

摘要： An optical information storage medium system is provided. The optical information storage medium system includes an optical pickup, which comprises a photo-detector configured to control light power detected by receiving a portion of light emitted from a light source and obtains an output signal proportional to output light power of the light source from a signal detected by the photo-detector, and a signal processor configured to signal-process the output signal input from the optical pickup. The signal processor includes a sensitivity acquisition unit configured to acquire a sensitivity value of the photo-detector, a gain calculator configured to calculate a target gain value to be used in comparing the sensitivity value of the photo-detector, which is acquired by the sensitivity acquisition unit, with a target sensitivity value to be used by the optical information storage medium system, and a gain adjustment unit.

摘要翻译： 提供光信息存储介质系统。 光学信息存储介质系统包括光学拾取器，其包括光电检测器，其被配置为通过接收从光源发射的光的一部分来控制检测的光功率，并且获得与来自光源的光源的输出光功率成比例的输出信号 信号由光检测器检测;以及信号处理器，被配置为对从光学拾取器输入的输出信号进行信号处理。 所述信号处理器包括被配置为获取所述光检测器的灵敏度值的灵敏度获取单元，被配置为计算用于比较所述光检测器的灵敏度值所使用的灵敏度值的目标增益值的增益计算器， 获取单元，具有由光学信息存储介质系统使用的目标灵敏度值和增益调整单元。

公开(公告)号：US07417940B2

公开(公告)日：2008-08-26

申请号：US10909302

申请日：2004-08-03

申请人： Hong-kuk Kim ,  Chul-ho Jeon ,  Myoung-cher Cho

发明人： Hong-kuk Kim ,  Chul-ho Jeon ,  Myoung-cher Cho

IPC分类号： G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/13

摘要： An optical pick up, including: a laser diode which outputs a light in response to an input current; a photo diode which receives the light and outputs a voltage; a digital potentiometer which adjusts the voltage output by the photo diode according to a voltage adjusting signal; and a controller which outputs the input current, sets a first reference voltage to be outputted by the photo diode according to the light, and outputs the voltage adjusting signal to the digital potentiometer according to a difference between the output voltage and the reference voltage.

摘要翻译： 一种光学拾取器，包括：激光二极管，其响应于输入电流输出光; 接收光并输出电压的光电二极管; 数字电位器，其根据电压调节信号调整光电二极管的电压输出; 输出输入电流的控制器，根据光设定要由光电二极管输出的第一参考电压，并根据输出电压和参考电压之间的差，将电压调节信号输出到数字电位器。