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    • 1. 发明申请
    • 光ディスク装置
    • 光盘设备
    • WO2006095707A1
    • 2006-09-14
    • PCT/JP2006/304315
    • 2006-03-07
    • 三菱電機株式会社横山 英二
    • 横山 英二
    • G11B7/09G11B21/10
    • G11B7/0946G11B7/08541G11B7/0953
    •  位置制御偏差を評価する手段(101a)と評価結果を基にキック・ブレーキ機能信号がセットとなった補正信号をアクチュエータ(10)に対して出力する手段(102a)を設け、位置偏差信号が所定値を越えないように制御を行う。光ディスク装置に作用する振動や衝突時の衝撃外乱、あるいは偏心面振れ等のディスク物理歪を有する光ディスクを再生する際、制御偏差が増大する場合においても、制御の安定性を失うことなく制御偏差を抑圧し、常に安定な記録再生を可能にする。  
    • 提供了一种用于评估位置控制偏差的装置(101a)和用于根据评估结果将设置有踢脚制动功能信号的校正信号输出到致动器(10)的装置(102a) ),从而执行使得位置偏差信号不超过预定值的控制。 即使在再现具有盘形物理失真的光盘(如发生影响光盘装置的抖动或碰撞时的偏心摆动和冲击扰动)的情况下,控制偏差也将增加的情况下,可以在不损失稳定性的情况下, 的控制。 因此,可以始终实现稳定的记录/再现操作。
    • 2. 发明申请
    • 光ディスク装置
    • 光盘驱动器
    • WO2005048248A1
    • 2005-05-26
    • PCT/JP2003/014399
    • 2003-11-12
    • 富士通株式会社山下 知紀
    • 山下 知紀
    • G11B7/085
    • G11B11/10563G11B7/08541G11B7/0946
    • Microvibration occurring in an objective is suppressed by moving the objective lens such that the relative speed to a carriage becomes zero based on a TZC signal indicative of traverse of a track in an optical disc by a light spot during seek operation. In the control, position of the objective lens in the carriage immediately before starting seek operation of the carriage is detected and stored in a storage means, and position of the objective lens in the carriage during seek operation is detected. If the error between that position and the position stored in the storage means is larger than a preset threshold value, position of the objective lens in the carriage is corrected to the position stored in the storage means.
    • 通过移动物镜,基于在寻找操作期间基于指示光盘中的轨道横穿光盘的TZC信号,使物镜的相对速度变为零来抑制物镜中发生的微振动。 在控制中,检测并存储在存储装置中,立即检测并存储在托架开始寻求操作之前的物镜的位置,并且检测在寻道操作期间物镜在托架中的位置。 如果该位置与存储装置中存储的位置之间的误差大于预设阈值,则将物镜在滑架中的位置校正为存储在存储装置中的位置。
    • 5. 发明申请
    • TRACK CROSSING DISCRIMINATING CIRCUIT
    • 轨道交叉分辨率电路
    • WO00063898A1
    • 2000-10-26
    • PCT/EP2000/002788
    • 2000-03-29
    • G11B20/10G11B7/005G11B7/085G11B7/09
    • G11B7/08541
    • Out of the read signal an auxiliary signal (Sa) having a relatively low frequency content is generated. The apparatus comprises for the auxiliary signal (Sa) first hold means (8) for generating a first hold signal (H1) and second hold means (9) for generating a second hold signal (H2). The first hold means (8) are adapted for temporarily maintaining the value of the first hold signal (H1) at a value substantially corresponding to the bottom value of the auxiliary signal augmented by an addition value (Sa+ DELTA ) and the second hold means for temporarily maintaining the value of the second hold signal (H2) at a value corresponding to a top value of the auxiliary signal diminished by a subtraction value (Sa- DELTA ).
    • 在读取信号之外,产生具有相对较低频率内容的辅助信号(Sa)。 该装置包括用于产生第一保持信号(H1)的辅助信号(Sa)第一保持装置(8)和用于产生第二保持信号(H2)的第二保持装置。 第一保持装置(8)适于将第一保持信号(H1)的值暂时维持在基本上对应于由附加值(Sa + DELTA)增加的辅助信号的底部值的值,并且第二保持装置 暂时将第二保持信号(H2)的值保持在与辅助信号的顶部值相对应的值减去减法值(Sa-DELTA)。
    • 6. 发明申请
    • TRACK JUMP APPARATUS AND METHOD WHICH PERFORM TRACK JUMPING CONSIDERING POSITION OF PICKUP
    • 跟踪跳闸装置和执行考虑到PICKUP位置的跟踪的方法
    • WO2005006319A1
    • 2005-01-20
    • PCT/KR2004/001696
    • 2004-07-09
    • SAMSUNG ELECTRONICS CO., LTD.HAN, Moon-Soo
    • HAN, Moon-Soo
    • G11B7/085
    • G11B7/08541G11B7/08517G11B7/0953
    • A track jump apparatus and method which perform track jumping in consideration of the position of a pickup and the position of a lens of the pickup in an optical recording medium and system with eccentricity are provided. The track jump apparatus includes: a pickup, which reads a signal from an optical disc; an RF processing unit, which outputs an error signal controlling the pickup by shaping and amplifying the signal transmitted from the pickup; a servo, which judges a position of the pickup from the error signal output from the RF processing unit and outputs a track jump start/end control signal; and a driver, which moves the position of the pickup using the track jump start/end control signal output from the servo. A track jump method by which track jumping is performed in consideration of a position of a pickup can stably perform a search operation by determining a time of the track jump considering a lens position of the pickup in an optical recording medium and system with eccentricity.
    • 提供考虑到拾取器的位置和拾取器的透镜在光学记录介质和偏心系统中的位置来执行轨迹跳跃的轨迹跳跃装置和方法。 轨道跳转装置包括:拾取器,其从光盘读取信号; RF处理单元,其通过对从拾取器发送的信号进行整形和放大来输出控制拾取器的误差信号; 伺服器,其从RF处理单元输出的误差信号判断拾取器的位置,并输出轨道跳跃开始/结束控制信号; 以及驱动器,其使用从伺服器输出的轨道跳跃开始/结束控制信号来移动拾取器的位置。 考虑到拾取器的位置执行轨道跳跃的轨道跳跃方法可以通过考虑光学记录介质中的拾取器的透镜位置和偏心系统确定轨道跳跃的时间来稳定地执行搜索操作。
    • 10. 发明申请
    • TRACK TRAVERSE COUNTING ON AN OPTICAL DISK
    • 光盘上的跟踪计数
    • WO01067445A1
    • 2001-09-13
    • PCT/KR2000/000612
    • 2000-06-12
    • G11B19/02G11B7/085G11B7/09
    • G11B7/08541
    • In the apparatus for detecting the number of the track traverse on an optical disk based on high density by detecting an envelope of a data AM modulated by a track traverse and by counting the number of the track traverse, the apparatus comprises a differentiation part for differentiating an output signal of a bandpass filter provided on a stage next to the bandpass filter which eliminates a low DC component, a high frequency component and noise of an inputted modulation signal; a sample trigger generating circuit for generating top and bottom signals in response to a data signal outputted through the differentiation part and a signal outputted through a comparator; a top hold part and a bottom hold part for holding the data signal at top and bottom; and a subtraction part for performing a subtraction to obtain a difference between the top and bottom signals outputted from the top and bottom hold parts, thereby resulting in counting the number of the track traverse exactly, while increasing a jumping speed required for a detection of the number of the track traverse on the optical disk.
    • 在通过检测由轨道横越调制的数据AM的包络并通过对轨道横越的数量进行计数来检测基于高密度的光盘上的轨道横越数的装置中,该装置包括用于微分的微分部分 带通滤波器的输出信号,设置在带通滤波器旁边的载波台上,消除低DC分量,输入的调制信号的高频分量和噪声; 采样触发发生电路,用于响应于通过微分部分输出的数据信号和通过比较器输出的信号产生顶部和底部信号; 顶部保持部分和用于将数据信号保持在顶部和底部的底部保持部分; 以及减法部分,用于执行减法以获得从顶部和底部保持部分输出的顶部和底部信号之间的差异,从而精确地计算轨道横越的数量,同时增加检测到的轨迹横移所需的跳跃速度 轨道数在光盘上横越。