公开(公告)号：US20040076084A1

公开(公告)日：2004-04-22

申请号：US10629894

申请日：2003-07-30

申请人： Kabushiki Kaisha Toshiba

发明人： Minoru Yonezawa

IPC分类号： G11B007/085

CPC分类号： G11B7/08511 ,  G11B7/08517 ,  G11B2007/0013

摘要： An optical disk device has a recording information management portion which detects a distribution of a recorded region R and an unrecorded region M based on reflection light received by an optical head and an access target setting circuit which determines an access target of an optical head so as to make access to a target position of a recording layer of an optical disk while avoiding the unrecorded region M based on the detected distribution of the regions. Since an access is made while passing through only the recorded region R, a servo operation can be stabilized.

摘要翻译： 光盘装置具有记录信息管理部分，其基于由光头接收的反射光和存取目标设置电路检测记录区域R和未记录区域M的分布，该访问目标设置电路确定光学头的访问目标，以便 以便基于检测到的区域分布来避免未记录区域M而访问光盘的记录层的目标位置。 由于仅通过记录区域R进行访问，因此可以稳定伺服操作。

公开(公告)号：US20040076091A1

公开(公告)日：2004-04-22

申请号：US10629917

申请日：2003-07-30

申请人： Kabushiki Kaisha Toshiba

发明人： Minoru Yonezawa

IPC分类号： G11B007/095

CPC分类号： G11B7/0941 ,  G11B7/0946 ,  G11B7/0948

摘要： An optical disk device comprises position control portions which carry out position control of at least one of an optical head and an objective lens based on a detection signal from the optical head, and disturbance learning portions which reduce a compensation gain of the position control portion in a range in which servo control is not deviated, and detect disturbance information of the optical disk to store it as learning disturbance information. Fine disturbance information can be reliably learned because the information is not affected by the compensation gain.

摘要翻译： 光盘装置包括基于来自光头的检测信号进行光头和物镜中的至少一个的位置控制的位置控制部，以及降低位置控制部的补偿增益的干扰学习部 伺服控制不偏离的范围，并且检测光盘的干扰信息以将其存储为学习障碍信息。 由于信息不受补偿增益的影响，因此能够可靠地获取细微的干扰信息。

公开(公告)号：US20040001410A1

公开(公告)日：2004-01-01

申请号：US10603989

申请日：2003-06-26

申请人： Kabushiki Kaisha Toshiba

发明人： Minoru Yonezawa

IPC分类号： G11B007/00

CPC分类号： G11B7/08511 ,  G11B7/00718 ,  G11B7/08505 ,  G11B2007/0013

摘要： An optical disk apparatus including a waiting position determining circuit which detects physical properties of each region in an optical disk after recording or reproducing processing is finished and decides a waiting position of an optical head according to the detection, and various kinds of control mechanisms which controls a position of the optical head according to the decided waiting position in order to move the optical head, is provided. By making the optical head wait at a position before two or more tracks in an unrecorded region, the recording processing can be resumed stably and surely and the recording processing can be preferentially performed in the remaining unrecorded region.

摘要翻译： 包括在记录或再现处理之后检测光盘中每个区域的物理属性的等待位置确定电路的光盘装置完成，并且根据该检测决定光头的等待位置，以及控制各种控制机构 提供了根据所决定的等待位置的光学头的位置以移动光学头。 通过使光学头等待在未记录区域中的两个或更多个轨道之前的位置，可以稳定且可靠地恢复记录处理，并且可以在剩余的未记录区域中优先执行记录处理。

公开(公告)号：US20010028026A1

公开(公告)日：2001-10-11

申请号：US09820365

申请日：2001-03-29

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Minoru Yonezawa ,  Masatoshi Sakurai

IPC分类号： H01L031/00

CPC分类号： H01L27/307 ,  H01L27/30 ,  H01L51/4226 ,  Y02E10/549

摘要： There is provided a photodetector which has the function of measuring the intensity distribution of light with a simple and inexpensive construction and which has a selectivity for a measured wavelength band. The photodetector comprises a transparent semiconductor electrode part and counter electrode part on each of which a sensitizing dye is applied, and a buffer layer sandwiched therebetween, the counter electrode part or the transparent semiconductor electrode part being divided into a plurality of electrode cells. Thus, it is possible to realize a compact photodetector which carries out a photoelectric transfer using part of light in a wavelength band absorbed into the sensitizing dye and which has a wavelength selectively.

摘要翻译： 提供了具有以简单且廉价的结构测量光的强度分布的功能的光电检测器，并且对于测量的波长带具有选择性。 光电探测器包括一个透明的半导体电极部分和相应的电极部分，每一个都涂上敏化染料，并且夹在它们之间的缓冲层，对电极部分或透明半导体电极部分被分成多个电极单元。 因此，可以实现使用吸收到敏化染料中的波长带中的部分光进行光电转换并且具有选择性波长的紧凑型光电检测器。