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41. 发明授权

US06741622B2 Apparatus and method for compensating for temperature of laser diode 失效
标题翻译：用于补偿激光二极管温度的装置和方法
公开(公告)号：US06741622B2
公开(公告)日：2004-05-25
申请号：US09903529
申请日：2001-07-13
申请人： Tatsuhiro Otsuka
发明人： Tatsuhiro Otsuka
IPC分类号： H01S300
CPC分类号： G11B7/126
摘要： A temperature compensation apparatus for controlling an output power of a laser diode according to a temperature variation of the laser diode, and a method therefor. An error voltage between a voltage corresponding to the output power of the laser diode and a reference voltage is generated. The error voltage is output as a control voltage corrected based on the output power and is applied to the laser diode. When the level of the error voltage overflows or underflows in a first up/down counter, the control voltage based on the luminous efficiency of the laser diode is output by applying the corrected control voltage to the laser diode while interlocking the first up/down counter with a second up/down counter. Accordingly, it is possible to stabilize the luminous efficiency and reduce control error of the laser diode.
摘要翻译：根据激光二极管的温度变化来控制激光二极管的输出功率的温度补偿装置及其方法。产生与激光二极管的输出功率相对应的电压与参考电压之间的误差电压。输出误差电压作为基于输出功率校正的控制电压并施加到激光二极管。当误差电压的电平在第一上/下计数器中溢出或下溢时，通过将校正的控制电压施加到激光二极管来输出基于激光二极管的发光效率的控制电压，同时将第一上/下计数器互锁有一个第二个上/下计数器。因此，可以稳定发光效率并降低激光二极管的控制误差。

42. 发明申请

US20110182605A1 IMAGE FORMING DEVICE AND METHOD OF ADJUSTING DENSITY OF FORMED IMAGE 有权
标题翻译：图像形成装置和调整形成图像的密度的方法
公开(公告)号：US20110182605A1
公开(公告)日：2011-07-28
申请号：US12908527
申请日：2010-10-20
申请人： Tatsuhiro OTSUKA , Soon-cheol Kweon , Ki-hwan Kwon
发明人： Tatsuhiro OTSUKA , Soon-cheol Kweon , Ki-hwan Kwon
IPC分类号： G03G15/10
CPC分类号： G03G15/0829 , G03G15/065 , G03G15/0849 , G03G15/0851 , G03G15/0853 , G03G15/0877 , G03G15/0891 , G03G2215/0634 , G03G2215/0819
摘要： An image forming device includes a toner supplying unit to supply the toner to a storage unit, a mixer to supply developer in the storage unit to a developing roller, a developer sensor to detect the amount of developer on the surface of the developing roller, a toner concentration sensor to detect toner concentration in the developer stored in the storage unit, and a control unit to adjust at least one of a developing bias and a rotation speed of the mixer based on a value detected by the developer sensor and a value detected by the toner concentration sensor, such that a printed image has uniform density.
摘要翻译：图像形成装置包括将调色剂供给到存储单元的调色剂供应单元，将存储单元中的显影剂供应到显影辊的混合器，用于检测显影辊表面上的显影剂的量的显影剂传感器，调色剂浓度传感器，用于检测存储在存储单元中的显影剂中的调色剂浓度;以及控制单元，用于基于由显影剂传感器检测的值和由显影剂传感器检测到的值来调节混合器的显影偏压和转速中的至少一个，调色剂浓度传感器，使得印刷图像具有均匀的密度。

43. 发明授权

US07821907B2 Apparatus and method for reproducing optical disk 失效
标题翻译：用于再现光盘的装置和方法
公开(公告)号：US07821907B2
公开(公告)日：2010-10-26
申请号：US11947055
申请日：2007-11-29
申请人： In-joo Kim , Tatsuhiro Otsuka , An-sik Jeong
发明人： In-joo Kim , Tatsuhiro Otsuka , An-sik Jeong
IPC分类号： G11B7/00
CPC分类号： G11B20/10009 , G11B20/10046
摘要： An optical disk reproducing apparatus to equalize and reproduce a signal optically read from an optical disk includes a controller to determine a number of regions to divide the optical disk into according to a reproduction frequency variation corresponding to a signal quality variation, and an equalizer to filter signals optically read from the divided regions with a cut-off frequency corresponding to the reproduction frequency variation.
摘要翻译：用于对从光盘光学读取的信号进行均衡和再现的光盘再现装置包括：控制器，用于根据与信号质量变化相对应的再现频率变化来确定将光盘划分成多个区域;以及均衡器，以过滤以与再现频率变化相对应的截止频率从分割区域光学读取的信号。

44. 发明申请

US20090147642A1 APPARATUS FOR AND METHOD OF DETECTING TRACKING ERROR SIGNALS 有权
标题翻译：检测跟踪错误信号的方法和方法
公开(公告)号：US20090147642A1
公开(公告)日：2009-06-11
申请号：US12108827
申请日：2008-04-24
申请人： In-joo KIM , Tatsuhiro OTSUKA
发明人： In-joo KIM , Tatsuhiro OTSUKA
IPC分类号： G11B20/18
CPC分类号： G11B20/18 , G11B7/0906 , G11B2220/2541
摘要： An apparatus for detecting a tracking error signal includes an optical detector to receive light beams reflected from an optical disc and having a plurality of detecting regions; and a phase difference extracting unit to extract a phase difference between a pair of optical signals output from the optical detector, wherein the phase difference extracting unit repeatedly moves a first graph representing one optical signal from among the pair of optical signals by a predetermined distance with respect to a second graph representing another optical signal from among the pair of optical signals, the first and second graph represent optical signal values with respect to t-axis, adds differences between optical signal values of the first graph and optical signal values of the second graph corresponding to predetermined positions of the t-axis, the adding differences is repeated for each of the repeatedly moved positions of the first graph, and outputs a moved distance of a position where the added value is smallest as a phase difference.
摘要翻译：用于检测跟踪误差信号的装置包括光检测器，用于接收从光盘反射并具有多个检测区域的光束; 以及相位差提取单元，用于提取从所述光学检测器输出的一对光信号之间的相位差，其中所述相位差提取单元将表示来自所述一对光信号之中的一个光信号的第一曲线反复移动预定距离，对于表示来自一对光信号中的另一光信号的第二图，第一和第二图表示相对于t轴的光信号值，将第一图的光信号值和第二图的光信号值之间的差加上对应于t轴的预定位置的图形，对于第一曲线的每个重复移动的位置重复相加差，并且将相加值最小的位置的移动距离作为相位差输出。

45. 发明授权

US07336588B2 Method of and apparatus for recording data on optical recording medium 有权
标题翻译：在光学记录介质上记录数据的方法和装置
公开(公告)号：US07336588B2
公开(公告)日：2008-02-26
申请号：US10806319
申请日：2004-03-23
申请人： Yong-jin Ahn , In-sik Park , Kyung-geun Lee , Chang-jin Yang , Tatsuhiro Otsuka , Du-seop Yoon , Seong-sue Kim
发明人： Yong-jin Ahn , In-sik Park , Kyung-geun Lee , Chang-jin Yang , Tatsuhiro Otsuka , Du-seop Yoon , Seong-sue Kim
IPC分类号： G11B7/00
CPC分类号： G11B7/126 , G11B7/0045 , G11B7/00454 , G11B7/00456 , G11B7/0062 , G11B2007/0006
摘要： A method of and apparatus for recording data on an optical recording medium form a mark or a space by using a recording waveform having an erase pattern containing a multi-pulse. The method and the apparatus prevent distortion of the mark or the space and improve a mark shape such that a recording/reproducing characteristic of the optical recording medium is improved.
摘要翻译：通过使用具有包含多脉冲的擦除图案的记录波形，在光学记录介质上记录数据的方法和装置形成标记或空间。该方法和装置防止标记或空间的变形，并提高标记形状，使得光记录介质的记录/再现特性得到改善。

46. 发明授权

US07224651B2 Physical identification data addressing method using wobble signal, wobble address encoding circuit, method and circuit for detecting wobble address, and recording medium thereof 失效
标题翻译：使用摆动信号的物理识别数据寻址方法，摆动地址编码电路，用于检测摆动地址的方法和电路及其记录介质
公开(公告)号：US07224651B2
公开(公告)日：2007-05-29
申请号：US10947361
申请日：2004-09-23
申请人： Jung-wan Ko , In-sik Park , Kyung-geun Lee , Du-seop Yoon , Seong-sin Joo , Jae-seong Shim , Byoung-ho Choi , Byung-in Ma , Tatsuhiro Otsuka , Yong-jin Ahn
发明人： Jung-wan Ko , In-sik Park , Kyung-geun Lee , Du-seop Yoon , Seong-sin Joo , Jae-seong Shim , Byoung-ho Choi , Byung-in Ma , Tatsuhiro Otsuka , Yong-jin Ahn
IPC分类号： G11B7/00
CPC分类号： G11B27/24 , G11B7/00718 , G11B7/24082 , G11B2220/216 , G11B2220/2562 , G11B2220/2575
摘要： A physical identification data (PID) addressing method using a wobble signal, a wobble address encoding circuit, a method and circuit for detecting the wobble address and a recording medium therefor. Groove address information indicating physical identification information is phase modulated using a wobble clock signal and recorded in one of the two walls of a groove track, and land address information is phase modulated using a wobble clock signal obtained by shifting the phase of the former wobble clock signal and recorded in the other wall. That is, address information is phase modulated and recorded in each track using the wobbles having a phase difference of 90° between adjacent tracks so that a sum of wobble signals from the adjacent tracks can be a quadrature phase shift keying (QPSK) signal. Therefore, more data can be recorded in the recording medium, and since an interval in which a wobble signal disappears is not caused, recovery of a wobble clock signal can be advantageously performed.
摘要翻译：使用摆动信号的物理识别数据（PID）寻址方法，摆动地址编码电路，用于检测摆动地址的方法和电路及其记录介质。表示物理识别信息的槽地址信息使用摆动时钟信号进行相位调制，并记录在凹槽轨迹的两个壁之一中，并且使用通过使前一个摆动时钟的相位偏移而获得的摆动时钟信号来对陆地地址信息进行相位调制信号并记录在另一面墙上。也就是说，使用相邻轨道之间具有90°的相位差的摆动来将地址信息相位调制并记录在每个轨道中，使得来自相邻轨道的摆动信号的和可以是正交相移键控（QPSK）信号。因此，可以在记录介质中记录更多的数据，并且由于不会产生摆动信号消失的间隔，所以可以有利地进行摆动时钟信号的恢复。

47. 发明申请

US20060268668A1 Tilt controller based on distortion-free control signals and an optical reproducing apparatus thereof 审中-公开
标题翻译：基于无失真控制信号的倾斜控制器及其光学再现装置
公开(公告)号：US20060268668A1
公开(公告)日：2006-11-30
申请号：US11432330
申请日：2006-05-12
申请人： Myoung-wook Lee , Tatsuhiro Otsuka , Jae-seong Shim
发明人： Myoung-wook Lee , Tatsuhiro Otsuka , Jae-seong Shim
IPC分类号： G11B7/00
CPC分类号： G11B20/10009 , G11B7/0956
摘要： A tilt controller controlling a tilt of an actuator of an optical pickup based on distortion-free control signals and an optical reproducing apparatus including the tilt controller. A control signal generator generates firs and second control signals to control the actuator. A reference control signal generator generates a reference control signal using the first and second control signals. A driving signal generator generates driving signals for the actuator using the first and second control signals, and the reference control signal. Protection circuits prevent the reference control signal generator from affecting first and second control signals. Accordingly, distortion of the actuator driving signals is eliminated.
摘要翻译：一种倾斜控制器，其控制基于无失真控制信号的光学拾取器的致动器的倾斜以及包括倾斜控制器的光学再现装置。控制信号发生器产生第一和第二控制信号以控制致动器。参考控制信号发生器使用第一和第二控制信号产生参考控制信号。驱动信号发生器使用第一和第二控制信号以及基准控制信号产生致动器的驱动信号。保护电路防止参考控制信号发生器影响第一和第二控制信号。因此，消除了致动器驱动信号的失真。

48. 发明授权

US07092329B2 Physical identification data addressing method using wobble signal, wobble address encoding circuit, method and circuit for detecting wobble address, and recording medium therefor 失效
标题翻译：使用摆动信号的物理识别数据寻址方法，摆动地址编码电路，用于检测摆动地址的方法和电路及其记录介质
公开(公告)号：US07092329B2
公开(公告)日：2006-08-15
申请号：US10805360
申请日：2004-03-22
申请人： Jung-wan Ko , In-sik Park , Kyung-geun Lee , Du-seop Yoon , Seong-sin Joo , Jae-seong Shim , Byoung-ho Choi , Byung-in Ma , Young-jin Ahn , Tatsuhiro Otsuka
发明人： Jung-wan Ko , In-sik Park , Kyung-geun Lee , Du-seop Yoon , Seong-sin Joo , Jae-seong Shim , Byoung-ho Choi , Byung-in Ma , Young-jin Ahn , Tatsuhiro Otsuka
IPC分类号： G11B7/00
CPC分类号： G11B27/24 , G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/26 , G11B20/1217 , G11B27/3027 , G11B2020/1239 , G11B2020/1268 , G11B2020/1278 , G11B2020/1279 , G11B2020/1287 , G11B2220/216 , G11B2220/2562 , G11B2220/2575
摘要： A physical identification data (PID) addressing method using a wobble signal, a wobble address encoding circuit, a method and circuit for detecting the wobble address and a recording medium therefor. Groove tracks are classified into odd groove tracks and even groove tracks. Address information indicating physical identification information is phase modulated using wobble signals having a predetermined phase difference between two adjacent groove tracks, and recorded in each groove track so that address information modulated using the wobble signals having the phase difference of 90° between adjacent two groove tracks can be a quadrature phase shift keying (QPSK) signal. Accordingly, a larger amount of data can be recorded on the recording medium, and since an interval in which a wobble signal disappears is not caused, recovery of a wobble clock signal can be advantageously performed.
摘要翻译：使用摆动信号的物理识别数据（PID）寻址方法，摆动地址编码电路，用于检测摆动地址的方法和电路及其记录介质。凹槽轨道分为奇数槽轨道和均匀凹槽轨道。指示物理识别信息的地址信息使用在两个相邻凹槽轨道之间具有预定相位差的摆动信号进行相位调制，并记录在每个凹槽轨道中，使得使用相邻两个凹槽轨道之间具有90°相位差的摆动信号调制的地址信息可以是正交相移键控（QPSK）信号。因此，可以在记录介质上记录更大量的数据，并且由于不会产生摆动信号消失的间隔，所以可以有利地进行摆动时钟信号的恢复。

49. 发明申请

US20060176783A1 Apparatus for detecting saw-tooth wobbles from optical disc and method thereof 审中-公开
标题翻译：用于从光盘检测锯齿摆动的装置及其方法
公开(公告)号：US20060176783A1
公开(公告)日：2006-08-10
申请号：US11303020
申请日：2005-12-16
申请人： Chekcheyev Sergey , Tatsuhiro Otsuka
发明人： Chekcheyev Sergey , Tatsuhiro Otsuka
IPC分类号： G11B7/00 , G11B5/09
CPC分类号： G11B7/0053
摘要： An apparatus for detecting wobble information of an optical disc and a method thereof are disclosed. The apparatus comprises an eliminator for outputting a second harmonic signal by eliminating subharmonic from an input wobble signal. A detector is provided for generating a cosine signal and a sine signal having a phase identical to the second harmonic signal, and detecting a phase difference of the second harmonic signal the generated signals. A compensator is provided for counting the phase difference and compensating the phase difference by shifting a phase of the cosine signal and the sine signal according to the counted value. Also, a signal output unit is provided for outputting a detection signal by multiplying the compensated cosine signal and the second harmonic signal, integrating the multiplied signal, and discriminating a signal. Accordingly, the phase error and the errors are minimized. Also, the detection accuracy increases, and the performance of detecting the saw-tooth wobble is improved.
摘要翻译：公开了一种用于检测光盘的摆动信息的装置及其方法。该装置包括消除器，用于通过从输入摆动信号中消除次谐波来输出二次谐波信号。提供了一种用于产生余弦信号的检测器和具有与二次谐波信号相同的相位的正弦信号，并且检测所产生的信号的二次谐波信号的相位差。提供补偿器，用于对相位差进行计数，并根据计数值移位余弦信号和正弦信号的相位来补偿相位差。而且，提供一个信号输出单元，用于通过将补偿的余弦信号和二次谐波信号相乘来积分检测信号，并对乘法信号进行积分和鉴别信号。因此，相位误差和误差被最小化。此外，检测精度提高，并且提高了锯齿摆动的检测性能。

50. 发明授权

US07020055B2 Optical pickup apparatus 失效
标题翻译：光拾取装置
公开(公告)号：US07020055B2
公开(公告)日：2006-03-28
申请号：US10233569
申请日：2002-09-04
申请人： Jong-bae Kim , Young-man Ahn , Tatsuhiro Otsuka
发明人： Jong-bae Kim , Young-man Ahn , Tatsuhiro Otsuka
IPC分类号： G11B7/00
CPC分类号： G11B7/13927 , G11B7/131 , G11B7/1353 , G11B7/1369
摘要： An optical pickup apparatus includes a detection unit detecting a light beam reflected/diffracted by the recording medium and passing through the objective lens by dividing the light beam into a plurality of light areas, and a signal processor detecting a difference between widths T1 and T2 indicating that first and second focusing signals are greater than a predetermined threshold value and a thickness signal of the recording medium by using the detected difference when an S-curve of a focus error signal detected by using detection signals of the light areas output from the detection unit is obtained by subtracting a second detecting signal from a first detecting signal or by subtracting the first focusing signal from the second signal. Thus, a spherical aberration due to a change in thickness of the recording medium can be corrected by driving a spherical aberration correcting device according to a thickness signal corresponding to the change in thickness of the recording medium.
摘要翻译：一种光学拾取装置，包括：检测单元，检测由记录介质反射/衍射的光束，并通过将光束分割成多个光区域而通过物镜;以及信号处理器，检测宽度T 1和T之间的差 2，当通过使用从所述第一和第二聚焦信号输出的光区域的检测信号检测到的聚焦误差信号的S曲线时，通过使用检测到的差异，指示第一和第二聚焦信号大于预定阈值和记录介质的厚度信号通过从第一检测信号中减去第二检测信号或从第二信号中减去第一聚焦信号获得检测单元。因此，可以通过根据与记录介质的厚度变化相对应的厚度信号驱动球面像差校正装置来校正由于记录介质的厚度变化引起的球面像差。

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