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1. 发明专利

JP2011187146A Optical disk device 有权
标题翻译：光盘设备
公开(公告)号：JP2011187146A
公开(公告)日：2011-09-22
申请号：JP2010054442
申请日：2010-03-11
申请人： Teac Corp , ティアック株式会社
发明人： OTSUKA YOSHIYUKI , MIYANAGA TATSUO
IPC分类号： G11B7/09 , G11B7/085
CPC分类号： G11B7/094
摘要： PROBLEM TO BE SOLVED: To secure data recording quality, while attaining power-saving in an optical disk device. SOLUTION: A servo processor 30 of an optical disk device includes a low-pass equalizer 30b, a high-pass equalizer 30c, a limiter 30d and an adder 30e. A limit voltage value of the limiter 30d is set by a control command from a system controller 32 and is set, when recording data, such that the limit voltage value becomes larger than the value, when the data are reproduced. The output of the adder 30e is supplied to a tracking actuator, or a focus actuator, as a tracking drive signal or a focus-drive signal. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了确保数据记录质量，同时在光盘装置中实现节电。解决方案：光盘装置的伺服处理器30包括低通均衡器30b，高通均衡器30c，限幅器30d和加法器30e。通过来自系统控制器32的控制命令来设定限制器30d的极限电压值，并且当记录数据时，当数据被再现时，使得极限电压值变得大于该值时被设置。加法器30e的输出作为跟踪驱动信号或聚焦驱动信号提供给跟踪致动器或聚焦致动器。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2005310289A Optical disk device 审中-公开
标题翻译：光盘设备
公开(公告)号：JP2005310289A
公开(公告)日：2005-11-04
申请号：JP2004127545
申请日：2004-04-23
申请人： Teac Corp , ティアック株式会社
发明人： SHIDARA KIYOSHI , MIYANAGA TATSUO , TERAMOTO HIROYUKI
IPC分类号： G11B7/085 , G11B7/09
摘要： PROBLEM TO BE SOLVED: To suppress fluctuation of servo control due to cross talk between layers in difference of inner and outer circumference and multilayer structure of an optical disk in the optical disk device.
SOLUTION: Based on a tracking error signal or a focus error signal, a servo processor 30 of the optical disk device performs servo control for an optical pickup 16 and performs recording or reproducing data. An optical disk 10 is divided into multiple zones in radius direction, and the optimal servo parameter at the approximately central position in each zone is set as a common servo parameter in the zone concerned. When a recording/reproducing track moves to the next zone, the optical pickup 16 is sought to the central position in the next zone concerned where servo adjustment is performed and then is sought to the head track of the zone concerned, and the recording or reproducing data is performed.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：为了抑制光盘装置内的光盘的内外周和多层结构的层间的串扰造成的伺服控制的波动。解决方案：基于跟踪误差信号或聚焦误差信号，光盘装置的伺服处理器30对光拾取器16执行伺服控制，并执行记录或再现数据。将光盘10在半径方向上划分成多个区域，将各区域的近似中心位置的最佳伺服参数设定为相关区域中的共同伺服参数。当记录/再现轨迹移动到下一个区域时，光学拾取器16被寻求到相关伺服调整所涉及的下一个区域的中心位置，然后寻求到相关区域的磁头轨道，并且记录或再现执行数据。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JPH06282852A HEAD ACCESSING METHOD OF DISC DEVICE 失效
公开(公告)号：JPH06282852A
公开(公告)日：1994-10-07
申请号：JP6851693
申请日：1993-03-26
申请人： TEAC CORP
发明人： ONDA HIROYUKI , MIYANAGA TATSUO
IPC分类号： G11B7/085 , G11B21/08
摘要： PURPOSE:To achieve a seeking operation with an optical head at a high speed with a high accuracy concerning a head accessing method of a disc device which rotates a disc at a CLV (fixed linear speed). CONSTITUTION:When an optical head is transferred to a target scanning position E from the current scanning position D on a track 11a of an optical disc 11, a scanning value FE is calculated for scanning the optical disc during a period until the rotation of the disc 11 becomes stable from an arrival time of the optical head at the target scanning position E. Then, the optical head is transferred to a position F on the inner circumference side of the optical disc 11 by the scanning value calculated from the target scanning position E.

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