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公开(公告)号：US07499381B2
公开(公告)日：2009-03-03
申请号：US11903723
申请日：2007-09-24
申请人： Shinya Shimizu , Tetsuya Shihara , Tsuyoshi Eiza
发明人： Shinya Shimizu , Tetsuya Shihara , Tsuyoshi Eiza
IPC分类号： G11B7/00
CPC分类号： G11B7/0943 , G11B7/1369 , G11B7/13927
摘要： An optical disk apparatus having an aberration correcting unit for correcting aberrations generated on the recording surface of an optical disk based on received correcting signals, a servo signal generating unit for generating servo signals based on the reflection lights from the optical disk and predefined parameters, and a birefringence detecting unit that detects the degrees of birefringent portions on the recording surface based on received the servo signals and generates the correcting signals for correcting aberrations according to the detected degrees of the birefringent portions and outputs the correcting signals.
摘要翻译： 一种光盘装置，具有用于根据接收到的校正信号校正在光盘的记录表面上产生的像差的像差校正单元，用于根据来自光盘的预定参数产生伺服信号的伺服信号产生单元和预定参数，以及 双折射检测单元，其基于接收到的伺服信号来检测记录表面上的双折射部分的程度，并根据双折射部分的检测度产生用于校正像差的校正信号，并输出校正信号。
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2.发明申请Aberration correcting device, program thereof and disc apparatus equipped with the device 审中-公开畸变校正装置，程序和装备有该装置的盘装置公开(公告)号：US20070237054A1
公开(公告)日：2007-10-11
申请号：US11730975
申请日：2007-04-05
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/1275 , G11B7/1369 , G11B2007/0006
摘要： In disc discrimination operation of aberration correcting device including: light sources corresponding to n types (n is natural number, ≧2) of discs; and liquid crystal element having plurality of phase variation region (PVR) for correcting spherical aberration (CSA), total sum of maximum value (Max) among absolute values of variations from initial drive voltages (DVs) of applied DVs to DVs for CSA of first light beam in predetermined order for each of PVRs, and Max among absolute values of variations from DVs for CSA of k-th light beam to DVs for that of (k+1)th light beam, voltages being applied in predetermined order for each of PVRs when k (k is natural number that satisfies n−1≧k≧1) is changed from 1 to n−1, is minimum value among total sums determined in the same manner for every order of emitting light from light sources.
摘要翻译： 在像差校正装置的光盘鉴别操作中，包括：对应于n种类型的光源（n是自然数，> = 2）的光盘; 以及具有用于校正球面像差（CSA）的多个相位变化区域（PVR）的液晶元件，从所施加的DV的初始驱动电压（DV）到DV的初始驱动电压（DV）的绝对值之间的最大值（Max）的总和与第一 每个PVR以预定顺序的光束，以及第（k + 1）个光束的第k个光束的CSA对DV的DV的变化的绝对值之间的最大值， 当k（k是满足n-1> = k> = 1的自然数）的PVR从1变化到n-1，是以与来自光源的每个发光的顺序相同的方式确定的总和中的最小值。
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公开(公告)号：US20080144461A1
公开(公告)日：2008-06-19
申请号：US11903723
申请日：2007-09-24
申请人： Shinya Shimizu , Tetsuya Shihara , Tsuyoshi Eiza
发明人： Shinya Shimizu , Tetsuya Shihara , Tsuyoshi Eiza
IPC分类号： G11B5/58
CPC分类号： G11B7/0943 , G11B7/1369 , G11B7/13927
摘要： An optical disk apparatus having an aberration correcting unit for correcting aberrations generated on the recording surface of an optical disk based on received correcting signals, a servo signal generating unit for generating servo signals based on the reflection lights from the optical disk and predefined parameters, and a birefringence detecting unit that detects the degrees of birefringent portions on the recording surface based on received the servo signals and generates the correcting signals for correcting aberrations according to the detected degrees of the birefringent portions and outputs the correcting signals.
摘要翻译： 一种光盘装置，具有用于根据接收到的校正信号校正在光盘的记录表面上产生的像差的像差校正单元，用于根据来自光盘的预定参数产生伺服信号的伺服信号产生单元和预定参数，以及 双折射检测单元，其基于接收到的伺服信号来检测记录表面上的双折射部分的程度，并根据双折射部分的检测度产生用于校正像差的校正信号，并输出校正信号。
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4.发明申请Aberration correcting unit, optical pickup device, information reproducing apparatus, and aberration correcting program 审中-公开畸变校正单元，光学拾取装置，信息再现装置和像差校正程序公开(公告)号：US20070237053A1
公开(公告)日：2007-10-11
申请号：US11730870
申请日：2007-04-04
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/1369 , G11B2007/0006
摘要： A control portion of aberration correcting unit includes: a potential calculating block that determines a potential to be applied to each of the divided electrodes of the first transparent electrode and the second transparent electrode; a change quantity calculating block that determines a potential change quantity that is a difference between the determined potential and a potential that is already applied with respect to each of the divided electrodes of the first transparent electrode and the second transparent electrode, and a potential changing block changes the potentials to be applied to the divided electrodes of the first transparent electrode and the second transparent electrode sequentially to the potentials determined by the potential calculating block based on the potential change quantity.
摘要翻译： 像差校正单元的控制部分包括：电位计算块，确定施加到第一透明电极和第二透明电极的每个分割电极的电位; 变化量计算块，其确定作为所确定的电位和已经施加于所述第一透明电极和所述第二透明电极中的每个分割电极的电位之间的差的电位变化量，以及电位改变块 基于电位变化量，将施加到第一透明电极和第二透明电极的分割电极的电位依次改变为由电位计算块确定的电位。
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5.发明申请Aberration correcting device, optical pickup device, information reproducing apparatus, aberration correcting program, and aberration correcting method 审中-公开畸变校正装置，光学拾取装置，信息再现装置，像差校正程序和像差校正方法公开(公告)号：US20070237052A1
公开(公告)日：2007-10-11
申请号：US11730854
申请日：2007-04-04
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/1369 , G11B2007/0006
摘要： A drive controller for electrode group A obtains a disc type, a current layer, and a temperature of the liquid crystal element, and based on contents of the information, it obtains drive voltage values to be applied to the electrodes of the group of electrodes A from the set value table. When the drive voltages to be applied to the group of electrodes A are determined, the drive controller for electrode group A finishes the process, and the process flow goes to a process performed by the drive controller for electrode group B. The drive controller for electrode group B performs initialization of segment numbers. Then, it determines how a phase correction quantity of an electrode Am has changed along with an increase of a radius of the liquid crystal element by using graphs and data, so as to determine the drive voltages to be applied to the group of electrodes B by different calculating methods for different areas in which the electrode Am is disposed.
摘要翻译： 用于电极组A的驱动控制器获得液晶元件的光盘类型，电流层和温度，并且根据信息内容，获得施加到电极组A的电极的驱动电压值 从设定值表。 当确定要施加到一组电极A的驱动电压时，电极组A的驱动控制器完成该处理，并且处理流程进行到由电极组B的驱动控制器执行的处理。电极驱动控制器 组B执行段号的初始化。 然后，通过使用图形和数据，确定电极Am的相位校正量随着液晶元件的半径的增加而改变，以便确定要施加到电极组B的驱动电压 对于其中设置电极Am的不同区域的不同计算方法。
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公开(公告)号：US20070206459A1
公开(公告)日：2007-09-06
申请号：US11712485
申请日：2007-03-01
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/08511 , G11B7/1369 , G11B7/13925 , G11B7/13927 , G11B2007/0013
摘要： An optical disc apparatus includes a spherical aberration correction element for correcting spherical aberration and a preadjustment unit for obtaining setting of a spherical aberration correction element for correcting spherical aberration appropriately in a case where a focus position of a light beam emitted from a light source is adjusted on each of recording layers of an optical recording medium every time when the optical recording medium is loaded to the apparatus.
摘要翻译： 光盘装置包括用于校正球面像差的球面像差校正元件和用于在调整从光源发射的光束的聚焦位置被调整的情况下适当地获得用于校正球面像差的球面像差校正元件的设置的预调整单元 每当光学记录介质被加载到设备时，在光学记录介质的每个记录层上。
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公开(公告)号：US20070263520A1
公开(公告)日：2007-11-15
申请号：US11797297
申请日：2007-05-02
申请人： Tsuyoshi Eiza , Shinya Shimizu
发明人： Tsuyoshi Eiza , Shinya Shimizu
IPC分类号： G11B7/135
CPC分类号： G11B7/13927 , G11B7/0948 , G11B7/1369
摘要： A liquid crystal element for correcting wave aberration included in an optical disc apparatus, is controlled by a liquid crystal element control unit which has a memory portion that stores information about a variation with time of orientation direction of liquid crystal in the case where a voltage is applied to the liquid crystal, with respect to at least one type of voltage value. The liquid crystal element control unit has a drive voltage deciding portion that obtains time period after a predetermined drive voltage is applied to the liquid crystal element until a reproduced signal obtained by processing an electric signal converted by the light detecting unit becomes optimal, and decides a drive voltage to be applied to the liquid crystal element based on the obtained time period, the information stored in the memory portion, and the predetermined drive voltage.
摘要翻译： 用于校正包括在光盘装置中的波像差的液晶元件由液晶元件控制单元控制，该液晶元件控制单元具有存储部分，该存储部分存储关于液晶的取向方向随时间的变化的信息，在电压为 相对于至少一种类型的电压值施加到液晶。 液晶元件控制单元具有驱动电压决定部，其获得在向液晶元件施加预定驱动电压之后的时间段，直到通过处理由光检测单元转换的电信号而获得的再现信号变得最佳，并且决定 基于获得的时间段，存储在存储器部分中的信息和预定的驱动电压来施加到液晶元件的驱动电压。
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公开(公告)号：US20070211598A1
公开(公告)日：2007-09-13
申请号：US11712488
申请日：2007-03-01
申请人： Tsuyoshi Eiza , Shinya Shimizu
发明人： Tsuyoshi Eiza , Shinya Shimizu
IPC分类号： G11B7/00
CPC分类号： G11B7/1369 , G11B7/13927 , G11B2007/0006
摘要： A liquid crystal element control portion of an optical disc apparatus includes a memory for storing first information concerning a relationship between a drive voltage to be applied to a liquid crystal element when an optimal reproduced signal is obtained and ambient temperature of the liquid crystal element and second information concerning a relationship between a response time characteristic of the liquid crystal element and temperature, a drive voltage obtaining portion for measuring a response time of the liquid crystal element at a predetermined timing and obtaining a drive voltage to be applied to the liquid crystal element in which an influence of temperature variation is corrected based on the obtained response time and the first and the second information, and a liquid crystal element driving circuit for driving the liquid crystal element at the drive voltage obtained by the drive voltage obtaining portion.
摘要翻译： 光盘装置的液晶元件控制部分包括存储器，用于存储关于当获得最佳再现信号时施加到液晶元件的驱动电压与液晶元件的环境温度之间的关系的第一信息，以及第二信息 关于液晶元件的响应时间特性与温度之间的关系的信息;驱动电压获取部分，用于在预定定时测量液晶元件的响应时间，并获得施加到液晶元件的驱动电压 基于获得的响应时间和第一和第二信息来校正温度变化的影响，以及用于以由驱动电压获得部分获得的驱动电压驱动液晶元件的液晶元件驱动电路。
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公开(公告)号：US20080212197A1
公开(公告)日：2008-09-04
申请号：US11987669
申请日：2007-12-03
申请人： Tsuyoshi Eiza , Shinya Shimizu
发明人： Tsuyoshi Eiza , Shinya Shimizu
IPC分类号： G02B27/14
CPC分类号： G02F1/134309 , G02F2203/18
摘要： An aberration correction apparatus comprising a liquid crystal device which includes a first electrode layer that is formed with regions divided concentrically, a second electrode layer that is formed with regions divided concentrically, and a liquid crystal that is sandwiched in between the first electrode layer and the second electrode layer, and which transmits an incident light beam therethrough, an objective lens which condenses the light beam transmitted through the liquid crystal device, and a liquid-crystal-device drive circuit which drives the liquid crystal device, wherein the liquid-crystal-device drive circuit impresses a potential which belongs to a predetermined region included in a liquid crystal characteristic that is a relationship between potentials impressed on the respective electrode layers sandwiching in the liquid crystal therebetween and a phase change magnitude of the light beam transmitted through the liquid crystal, on the concentric regions formed in the first electrode layer, and it impresses a potential which belongs to a region included in the liquid crystal characteristic and exhibiting a smaller phase change magnitude per unit drive voltage than in the predetermined region, on the concentric regions formed in the second electrode layer, whereby an aberration of the light beam is corrected.
摘要翻译： 一种像差校正装置，包括一个液晶装置，该液晶装置包括形成有同心区域的第一电极层，形成有同心区域的区域的第二电极层和夹在第一电极层和第二电极层之间的液晶 第二电极层，透射入射光束，将透过液晶装置的光束会聚的物镜和驱动液晶装置的液晶装置驱动电路， 器件驱动电路提供属于包含在液晶特性中的预定区域的电位，该液晶特性是夹在其中的液晶中的各个电极层上的电位之间的关系，以及透过液晶的光束的相变幅度 ，在冷杉中形成的同心区域 并且在形成在第二电极层中的同心区域上施加属于包括在液晶特性中并且在每单位驱动电压的相对于预定区域的相变幅度更小的区域的电位，由此， 校正光束的像差。
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公开(公告)号：US07859762B2
公开(公告)日：2010-12-28
申请号：US11987669
申请日：2007-12-03
申请人： Tsuyoshi Eiza , Shinya Shimizu
发明人： Tsuyoshi Eiza , Shinya Shimizu
CPC分类号： G02F1/134309 , G02F2203/18
摘要： An aberration correction apparatus comprising a liquid crystal device which includes a first electrode layer that is formed with regions divided concentrically, a second electrode layer that is formed with regions divided concentrically, and a liquid crystal that is sandwiched in between the first electrode layer and the second electrode layer, and which transmits an incident light beam therethrough, an objective lens which condenses the light beam transmitted through the liquid crystal device, and a liquid-crystal-device drive circuit which drives the liquid crystal device, wherein the liquid-crystal-device drive circuit impresses a potential which belongs to a predetermined region included in a liquid crystal characteristic that is a relationship between potentials impressed on the respective electrode layers sandwiching in the liquid crystal therebetween and a phase change magnitude of the light beam transmitted through the liquid crystal, on the concentric regions formed in the first electrode layer, and it impresses a potential which belongs to a region included in the liquid crystal characteristic and exhibiting a smaller phase change magnitude per unit drive voltage than in the predetermined region, on the concentric regions formed in the second electrode layer, whereby an aberration of the light beam is corrected.
摘要翻译： 一种像差校正装置，包括一个液晶装置，该液晶装置包括形成有同心区域的第一电极层，形成有同心区域的区域的第二电极层和夹在第一电极层和第二电极层之间的液晶 第二电极层，透射入射光束，将透过液晶装置的光束会聚的物镜和驱动液晶装置的液晶装置驱动电路， 器件驱动电路提供属于包含在液晶特性中的预定区域的电位，该液晶特性是夹在其中的液晶中的各个电极层上的电位之间的关系，以及透过液晶的光束的相变幅度 ，在冷杉中形成的同心区域 并且在形成在第二电极层中的同心区域上施加属于包括在液晶特性中并且在每单位驱动电压的相对于预定区域的相变幅度更小的区域的电位，由此， 校正光束的像差。
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