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1.发明授权Optical disk apparatus having tracking control for positioning a light beam along a track on an optical disk 有权具有用于沿着光盘上的轨道定位光束的跟踪控制的光盘装置公开(公告)号：US06396779B1
公开(公告)日：2002-05-28
申请号：US09417184
申请日：1999-10-12
申请人： Kenji Fujiune , Mitsurou Moriya , Yoshihiro Kanda , Yuuichi Kuze
发明人： Kenji Fujiune , Mitsurou Moriya , Yoshihiro Kanda , Yuuichi Kuze
IPC分类号： G11B700
CPC分类号： G11B7/094 , G11B7/08505 , G11B7/0901 , G11B7/0941 , G11B7/0945 , G11B7/0953
摘要： An apparatus of the present invention is an optical disk apparatus for irradiating a track on an information carrier on which information is recorded with a light beam so as to reproduce information from the track. The optical disk apparatus includes: a tracking error detector for detecting a tracking error signal representing a displacement between the light beam and the track; a fine movement section for moving the light beam in a substantially radial direction of the information carrier; a coarse movement section for moving the fine movement section in the substantially radial direction of the information carrier; a tracking controller for controlling the fine movement section and the coarse movement section based on the tracking error signal detected by the tracking error detector so that the light beam is positioned along the track; and an eccentricity detector for detecting an amount of eccentricity of the track on the information carrier. The tracking controller controls the coarse movement section based on the amount of eccentricity detected by the eccentricity detector.
摘要翻译： 本发明的装置是一种用于在信息载体上照射轨道的光盘装置，其上记录有信息的光束以从轨道再现信息。 光盘装置包括：跟踪误差检测器，用于检测表示光束和轨道之间的位移的跟踪误差信号; 用于沿着信息载体的大致半径方向移动光束的微动部分; 粗动部，用于使信息载体的大致径向移动微动部; 跟踪控制器，用于基于由跟踪误差检测器检测到的跟踪误差信号来控制微动部分和粗动部分，使得光束沿着轨道定位; 以及用于检测信息载体上的轨道的偏心量的偏心检测器。 跟踪控制器基于偏心检测器检测到的偏心量来控制粗动部分。
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公开(公告)号：US06304528B1
公开(公告)日：2001-10-16
申请号：US09362516
申请日：1999-07-28
申请人： Yoshihiro Kanda , Yuuichi Kuze , Kenji Fujiune
发明人： Yoshihiro Kanda , Yuuichi Kuze , Kenji Fujiune
IPC分类号： G11B700
CPC分类号： G11B7/0946
摘要： An optical disk reproducing apparatus of the present invention includes a body, a disk motor which rotates a disk in which information recording tracks are formed concentrically or spirally on an information recording surface, a base fixed onto the disk motor and elastically suspended with respect to the body, and an optical head which is suspended with an elastic member from the base and is displaceable in a radial direction of the disk. The apparatus further includes: a track cross detecting portion for generating a track cross pulse, based on a reproduction signal when a light beam emitted from the optical head crosses the information recording tracks; a track cross direction detecting portion for detecting a track cross direction representing a direction in which the light beam emitted from the optical head crosses the information recording tracks; a motor control portion for controlling a velocity of the disk motor and outputting rotational angle information of the disk motor; a counting portion for counting the track cross pulse generated by the track cross detecting portion, based on the track cross direction detected by the track cross direction detecting portion and the rotational angle information output from the motor control portion; and a measurement portion for measuring an amplitude of vibrations of the base, based on a count result of the counting portion.
摘要翻译： 本发明的光盘再现装置包括一个主体，一个盘式电动机，其使信息记录轨道在信息记录表面上同心地或螺旋地形成的盘旋转，固定在盘式电动机上的基座和相对于 主体和光学头，其从基座悬挂有弹性构件并且可沿盘的径向方向移位。 该装置还包括：轨道交叉检测部分，用于当从光头发射的光束穿过信息记录道时，基于再现信号产生轨道交叉脉冲; 轨道横向检测部分，用于检测表示从光头发射的光束穿过信息记录道的方向的轨道横截面; 用于控制盘马达的速度并输出盘马达的旋转角度信息的马达控制部分; 计数部，其基于由轨道横向检测部检测出的轨道横截面和从马达控制部输出的旋转角度信息，对由轨道交叉检测部产生的轨道交叉脉冲进行计数; 以及基于计数部的计数结果来测量基座的振动幅度的测量部。
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3.发明授权Optical disk with buffer area and recording and reproducing apparatus and methods 有权具有缓冲区的光盘和记录和再现装置和方法公开(公告)号：US06751176B1
公开(公告)日：2004-06-15
申请号：US09462718
申请日：2000-01-12
IPC分类号： G11B700
CPC分类号： G11B7/00736 , G11B7/0037 , G11B7/085 , G11B20/1217 , G11B27/034 , G11B27/32 , G11B27/329 , G11B2020/1229 , G11B2020/1231 , G11B2020/1265 , G11B2020/1267 , G11B2020/1277 , G11B2020/1285 , G11B2220/216 , G11B2220/218 , G11B2220/2562 , G11B2220/2566 , G11B2220/2575
摘要： An optical disc that has a recognition mark area behind a recorded area and in which the last data in the recorded area is stably accessed, the recognition mark area can be accessed without bringing about an abnormal state, and the first data in a succeeding recorded area, if it exists, is stably accessed. An unrecorded area (5) is provided outside the recorded area (4) of the optical disc (1). A mark area (6) is provided between the recorded area (4) and unrecorded area (5). A recognition mark area (6d) is provided in the mark area (6) in order to recognize the boundary between the recorded area (4) and the unrecorded area (5). In the mark area (6), first and second buffer areas (6b and 6c) are provided respectively in front of and behind the recognition mark area (6d). The width of the first buffer area (6b) is preset to be wider than the access error when the last data (4a) in the recorded area (4) is accessed, and the width of the second buffer area (6c) is preset to be wider than the access error when the recognition mark area (6d) is accessed.
摘要翻译： 一种在记录区域后面具有识别标记区域并且其中记录区域中的最后数据被稳定地访问的光盘，可以访问识别标记区域而不引起异常状态，并且在后续记录区域中的第一数据 如果存在，则被稳定地访问。 未记录区域（5）设置在光盘（1）的记录区域（4）的外部。 在记录区域（4）和未记录区域（5）之间设置有标记区域（6）。 识别标记区域（6d）被设置在标记区域（6）中，以识别记录区域（4）和未记录区域（5）之间的边界。 在标记区域（6）中，第一和第二缓冲区域（6b和6c）分别设置在识别标记区域（6d）的前面和后面。 当访问记录区域（4）中的最后数据（4a）时，第一缓冲区域（6b）的宽度被预设为比访问错误宽，并且第二缓冲区域（6c）的宽度被预设为 比识别标记区域（6d）被访问时的访问错误宽。
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4.发明授权Optical disc, its recording method, its recording device, its reproducing method, and its reproducing device 有权光盘，其记录方法，其记录装置，其再现方法及其再现装置公开(公告)号：US07016281B2
公开(公告)日：2006-03-21
申请号：US10835445
申请日：2004-04-28
IPC分类号： G11B7/007
CPC分类号： G11B7/00736 , G11B7/0037 , G11B7/085 , G11B20/1217 , G11B27/034 , G11B27/32 , G11B27/329 , G11B2020/1229 , G11B2020/1231 , G11B2020/1265 , G11B2020/1267 , G11B2020/1277 , G11B2020/1285 , G11B2220/216 , G11B2220/218 , G11B2220/2562 , G11B2220/2566 , G11B2220/2575
摘要： An optical disc that has a recognition mark area behind a recorded area and in which the last data in the recorded area is stably accessed, the recognition mark area can be accessed without bringing about an abnormal state, and the first data in a succeeding recorded area, if it exists, is stably accessed. An unrecorded area (5) is provided outside the recorded area (4) of the optical disc (1). A mark area (6) is provided between the recorded area (4) and unrecorded area (5). A recognition mark area (6d) is provided in the mark area (6) in order to recognize the boundary between the recorded area (4) and the unrecorded area (5). In the mark area (6), first and second buffer areas (6b and 6c) are provided respectively in front of and behind the recognition mark area (6d). The width of the first buffer area (6b) is preset to be wider than the access error when the last data (4a) in the recorded area (4) is accessed, and the width of the second buffer area (6c) is preset to be wider than the access error when the recognition mark area (6d) is accessed.
摘要翻译： 一种在记录区域后面具有识别标记区域并且其中记录区域中的最后数据被稳定地访问的光盘，可以访问识别标记区域而不引起异常状态，并且在后续记录区域中的第一数据 如果存在，则被稳定地访问。 未记录区域（5）设置在光盘（1）的记录区域（4）的外部。 在记录区域（4）和未记录区域（5）之间设置有标记区域（6）。 为了识别记录区域（4）和未记录区域（5）之间的边界，在标记区域（6）中设置识别标记区域（6d）。 在标记区域（6）中，第一和第二缓冲区域（6b和6c）分别设置在识别标记区域（6d）的前面和后面。 当访问记录区域（4）中的最后数据（4a）时，第一缓冲区域（6b）的宽度被预设为比访问错误宽，并且第二缓冲区域（6c）的宽度 当访问识别标记区域（6d）时，被预设为比访问错误宽。
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公开(公告)号：US5444682A
公开(公告)日：1995-08-22
申请号：US301001
申请日：1994-09-06
申请人： Shinichi Yamada , Mitsurou Moriya , Hiroyuki Yamaguchi , Osamu Yamaguchi , Yoshihiro Kanda , Yasuki Matsumoto
发明人： Shinichi Yamada , Mitsurou Moriya , Hiroyuki Yamaguchi , Osamu Yamaguchi , Yoshihiro Kanda , Yasuki Matsumoto
CPC分类号： G11B7/0938 , G11B7/00718
摘要： In a tracking control apparatus of a recording and reproducing apparatus for an optical disk, information is recorded in groove tracks and land tracks of the optical disk and address information is recorded in an address area arranged to each of the groove tracks and the land tracks, a control signal corresponding to a positional deviation between a light beam spot and a track is derived on the basis of light reflected from the optical disk, and hence an address period in which the light beam spot traces the address area is derived. When the light beam spot traces the land track, a tracking operation is performed by a control signal which is invert in polarity to that of groove track, and when the light beam spot traces the address area, the tracking control is performed by a signal of the same polarity as that of the groove track.
摘要翻译： 在用于光盘的记录和再现装置的跟踪控制装置中，将信息记录在光盘的凹槽轨道和平台轨道中，地址信息被记录在布置到每个凹槽轨道和槽脊轨道的地址区域中， 基于从光盘反射的光导出对应于光束光点和光道之间的位置偏差的控制信号，因此导出光束点跟踪地址区域的寻址周期。 当光束斑点跟踪脊迹道时，通过极性反转到凹槽轨迹的控制信号执行跟踪操作，并且当光束斑点跟踪地址区域时，跟踪控制由 与凹槽轨道的极性相同。
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公开(公告)号：US07916607B2
公开(公告)日：2011-03-29
申请号：US12129153
申请日：2008-05-29
IPC分类号： G11B7/00
CPC分类号： G11B20/00086 , G11B7/007 , G11B19/122 , G11B20/00115 , G11B20/00173 , G11B20/0021 , G11B20/00268 , G11B20/00449
摘要： In a recordable data storage medium on which property data was recorded after having been modulated and on which data that is decodable by a cryptographic key to be generated from the property data was recorded, the property data was preferably modulated by a different method from that applied to a read-only data storage medium. Then, an optical disc drive, having no ability to distinguish the recordable data storage medium from the read-only data storage medium, cannot read the recordable data storage medium. Consequently, a greater number of drives should be equipped with the function of recognizing the type of a given data storage medium and the copyright protection function should be consolidated.
摘要翻译： 在已被调制后记录了属性数据的可记录数据存储介质中，并且记录了可以通过从属性数据生成的加密密钥可解码的数据的属性数据优选地通过与所应用的不同的方法进行调制 到只读数据存储介质。 然后，不能区分可记录数据存储介质和只读数据存储介质的光盘驱动器不能读取可记录数据存储介质。 因此，更多的驱动器应该具有识别给定数据存储介质的类型的功能，并且应该巩固版权保护功能。
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公开(公告)号：US07746755B2
公开(公告)日：2010-06-29
申请号：US12129146
申请日：2008-05-29
IPC分类号： G11B7/00
CPC分类号： G11B20/00086 , G11B7/007 , G11B19/122 , G11B20/00115 , G11B20/00173 , G11B20/0021 , G11B20/00268 , G11B20/00449
摘要： In a recordable data storage medium on which property data was recorded after having been modulated and on which data that is decodable by a cryptographic key to be generated from the property data was recorded, the property data was preferably modulated by a different method from that applied to a read-only data storage medium. Then, an optical disc drive, having no ability to distinguish the recordable data storage medium from the read-only data storage medium, cannot read the recordable data storage medium. Consequently, a greater number of drives should be equipped with the function of recognizing the type of a given data storage medium and the copyright protection function should be consolidated.
摘要翻译： 在已被调制后记录了属性数据的可记录数据存储介质中，并且记录了可以通过从属性数据生成的加密密钥可解码的数据的属性数据优选地通过与所应用的不同的方法进行调制 到只读数据存储介质。 然后，不能区分可记录数据存储介质和只读数据存储介质的光盘驱动器不能读取可记录数据存储介质。 因此，更多的驱动器应该具有识别给定数据存储介质的类型的功能，并且应该巩固版权保护功能。
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公开(公告)号：US20080267049A1
公开(公告)日：2008-10-30
申请号：US12129146
申请日：2008-05-29
IPC分类号： G11B7/24
CPC分类号： G11B20/00086 , G11B7/007 , G11B19/122 , G11B20/00115 , G11B20/00173 , G11B20/0021 , G11B20/00268 , G11B20/00449
摘要： In a recordable data storage medium on which property data was recorded after having been modulated and on which data that is decodable by a cryptographic key to be generated from the property data was recorded, the property data was preferably modulated by a different method from that applied to a read-only data storage medium. Then, an optical disc drive, having no ability to distinguish the recordable data storage medium from the read-only data storage medium, cannot read the recordable data storage medium. Consequently, a greater number of drives should be equipped with the function of recognizing the type of a given data storage medium and the copyright protection function should be consolidated.
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公开(公告)号：US06925037B2
公开(公告)日：2005-08-02
申请号：US10386612
申请日：2003-03-12
CPC分类号： G11B7/08529 , G11B7/08541
摘要： An optical disc drive includes: an optical head with an actuator and a photodetector; a tracking driver outputting a drive signal to the actuator; a first tracking error signal generator for generating a first tracking error signal based on an output signal of the photodetector; first and second lens position control sections for respectively outputting first and second lens position control signals to the tracking driver; and a selector for selectively supplying the first tracking error signal to the first or second lens position control section according to a moving velocity of the optical head during a seek operation. The first lens position control signal is obtained by extracting signal components, of which the frequencies are equal to or lower than a predetermined frequency, from the first tracking error signal. The second lens position control signal is obtained by extracting DC components of the first tracking error signal at on-track points thereof.
摘要翻译： 光盘驱动器包括：具有致动器和光电检测器的光学头; 向所述致动器输出驱动信号的跟踪驱动器; 第一跟踪误差信号发生器，用于基于光电检测器的输出信号产生第一跟踪误差信号; 第一和第二透镜位置控制部分，用于分别向跟踪驱动器输出第一和第二透镜位置控制信号; 以及选择器，用于根据拾取操作期间光头的移动速度，选择性地将第一跟踪误差信号提供给第一或第二透镜位置控制部。 通过从第一跟踪误差信号中提取频率等于或低于预定频率的信号分量来获得第一透镜位置控制信号。 第二透镜位置控制信号通过在其轨迹点上提取第一跟踪误差信号的DC分量来获得。
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公开(公告)号：US07649815B2
公开(公告)日：2010-01-19
申请号：US10586355
申请日：2005-01-14
申请人： Yoshihiro Kanda
发明人： Yoshihiro Kanda
IPC分类号： G11B7/00
CPC分类号： G11B7/0953 , G11B7/0956
摘要： In a repetitive control device used for processing a servo signal, a memory (7) is used as a delay element for a filter (6), and a filtering process by the filter (6) is carried out using a clock signal that is an integral multiple of an operation frequency of a driving signal. Therefore, the gain can be increased without generating phase rotation with respect to a compensated signal, and high followability can be achieved to fluctuations in the track position which are caused by the shape of a disc such as decentering or surface wobbling, during recording and playback in an optical disc device.
摘要翻译： 在用于处理伺服信号的重复控制装置中，使用存储器（7）作为滤波器（6）的延迟元件，并且使用时钟信号执行滤波器（6）的滤波处理 驱动信号的工作频率的整数倍。 因此，可以增加增益而不产生相对于补偿信号的相位旋转，并且在记录和回放期间可以实现由诸如偏心或表面摆动的盘的形状引起的轨道位置的波动的高跟随性 在光盘装置中。
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