公开(公告)号：US4057832A

公开(公告)日：1977-11-08

申请号：US628594

申请日：1975-11-04

申请人： Hermanus Antonius Kappert

发明人： Hermanus Antonius Kappert

IPC分类号： H04N5/85 ,  G11B7/00 ,  G11B7/005 ,  G11B7/085 ,  H04N5/76

CPC分类号： H04N5/7605 ,  G11B7/08529 ,  G11B7/08564 ,  Y10S358/907

摘要： An apparatus for optically reading a record carrier on which information is contained in tangentially extending tracks includes a directing system for making the scanning spot cooperate with the desired track. In order to enable a jump-wise displacement of the scanning spot from a track being followed to an adjacent track, a switching device is provided for supplying a suitable control signal to the directing system. The control signal is automatically adapted to varying track distances, so that a correct jump-wise displacement of the scanning spot is guaranteed.

摘要翻译： 一种用于光学读取包含在切向延伸的轨道中的信息的记录载体的装置包括用于使扫描点与期望的轨道配合的引导系统。 为了使得扫描点从正在追踪的轨道向相邻轨道的逐跳位移，提供了一种用于向定向系统提供合适的控制信号的开关装置。 控制信号自动适应于不同的轨迹距离，从而保证了扫描点的正确的逐行位移。

公开(公告)号：US20170148478A1

公开(公告)日：2017-05-25

申请号：US15369194

申请日：2016-12-05

申请人： Optical Devices, LLC

发明人： Ron J. Kadlec

IPC分类号： G11B7/09 ,  G11B20/18 ,  G11B20/10

CPC分类号： G11B7/0941 ,  G11B7/08505 ,  G11B7/08529 ,  G11B7/08541 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0917 ,  G11B7/094 ,  G11B7/0945 ,  G11B20/10046 ,  G11B20/18 ,  G11B27/105 ,  G11B27/3027

摘要： An optical disk drive and a digital servo method for the optical disk drive includes controlling functions of the optical disk drive with a microprocessor. Low-pass filtered and gain adjusted versions of individual photodetector output signals resulting from an illumination of an optical disk are received. Versions of the individual photodetector output signals are digitized to produce digital signals. A focus control signal and/or a tracking control signal is determined through at least one servo algorithm executed by a digital signal processor based on a focus error and/or tracking error, respectively, determined from the digital signals. The digital signal processor is an integrated circuit structured and arranged for manipulation of digital signals in accordance with programmed commands, and in a manner that operates faster than the microprocessor.

公开(公告)号：US07924661B2

公开(公告)日：2011-04-12

申请号：US12478254

申请日：2009-06-04

申请人： Kuo-Jung Lan ,  Shu-Ching Chen

发明人： Kuo-Jung Lan ,  Shu-Ching Chen

IPC分类号： G11B7/00

CPC分类号： G11B7/08529

摘要： A track-jump control system and method are provided. The track-jump control system applied in an optical disc drive comprises a signal generator, a protection device, a velocity estimator, and a controller. The signal generator receives the signal from the PUH and generates a tracking signal and a position signal. The protection device receives the position signal and when the position signal represents the PUH pass a predetermined position of the optical disc, the protection device generates a protection signal. The velocity estimator estimates the velocity of the PUH according to the tracking signal, and then generates a velocity signal. The controller receives the velocity signal and the protection signal, protects the velocity signal according to the protection signal, and generates a control signal to control the track-jump according to the protected velocity signal.

摘要翻译： 提供了一种跟踪跳转控制系统和方法。 应用于光盘驱动器中的轨迹跳转控制系统包括信号发生器，保护装置，速度估计器和控制器。 信号发生器从PUH接收信号并产生跟踪信号和位置信号。 保护装置接收位置信号，当位置信号表示PUH通过光盘的预定位置时，保护装置产生保护信号。 速度估计器根据跟踪信号估计PUH的速度，然后产生速度信号。 控制器接收速度信号和保护信号，根据保护信号保护速度信号，并产生控制信号，根据受保护的速度信号控制轨迹跳跃。

公开(公告)号：US07907480B2

公开(公告)日：2011-03-15

申请号：US12823921

申请日：2010-06-25

申请人： Takeyoshi Kataoka ,  Motoyuki Suzuki

发明人： Takeyoshi Kataoka ,  Motoyuki Suzuki

IPC分类号： G11B7/00

CPC分类号： G11B20/10 ,  G11B7/08529 ,  G11B7/0946

摘要： An optical disk device for recording or reproducing an optical disk has: an objective lens for irradiating a laser beam to the optical disk; an actuator for moving the objective lens in the radial direction of the optical disk; and a spindle motor for rotating the optical disk. After the laser beam irradiated to the optical disk passed through a PID portion of the optical disk, the actuator moves the objective lens in the radial direction of the optical disk at a timing corresponding to a rotational speed. Between signals to drive the actuator, an output time of a deceleration signal is set to a predetermined ratio of a time during which an acceleration signal is outputted. While the deceleration signal is outputted, a light spot passes through the PID portion.

摘要翻译： 用于记录或再现光盘的光盘装置具有：用于将激光束照射到光盘的物镜; 用于沿着光盘的径向方向移动物镜的致动器; 以及用于旋转光盘的主轴电机。 在通过光盘的PID部分照射到光盘的激光束之后，致动器在对应于旋转速度的时刻沿着光盘的径向移动物镜。 在驱动致动器的信号之间，减速信号的输出时间被设定为输出加速度信号的时间的预定比率。 当减速信号输出时，光点通过PID部分。

公开(公告)号：USRE41528E1

公开(公告)日：2010-08-17

申请号：US11727874

申请日：2007-03-28

申请人： Hsu-Feng Ho

发明人： Hsu-Feng Ho

IPC分类号： G11B21/08

CPC分类号： G11B7/08529

摘要： The invention provides an adaptive brake force setting system. Every time when a pickup head with a predetermined mass crosses a plurality of recording tracks in an optical recording media, the system is used for selling brake force to make the pickup head stop from a predetermined initial brake position to a target recording track. The system comprises a detecting module and an estimating module. The detecting module is for detecting a final velocity and an acceleration of the pickup head when the pickup head arrives at the initial brake position. The estimating module is for, according to the final velocity and the acceleration, using a predetermined brake force estimating process to estimate the brake force exerted on the pickup head at each time for making the pickup head stop to the target recording track in a predetermined braking time. Therefore, the pickup head stop exactly to the target-recording track.

摘要翻译： 本发明提供一种自适应制动力设定系统。 每当具有预定质量的拾取头与光学记录介质中的多个记录道交叉时，该系统用于销售制动力，以使拾取头从预定的初始制动位置停止到目标记录轨道。 该系统包括检测模块和估计模块。 检测模块用于在拾取头到达初始制动位置时检测拾取头的最终速度和加速度。 估计模块用于根据最终速度和加速度，使用预定的制动力估计过程来估计每次用于使拾取头在预定制动中将目标记录轨迹停止到拾取头上的制动力 时间。 因此，拾取头完全停止到目标记录轨道。

公开(公告)号：US07684286B2

公开(公告)日：2010-03-23

申请号：US11216917

申请日：2005-08-31

申请人： Shu-Cing Chen ,  Kuo-Jung Lan

发明人： Shu-Cing Chen ,  Kuo-Jung Lan

IPC分类号： G11B21/08 ,  G11B7/085

CPC分类号： G11B7/08517 ,  G11B7/08529

摘要： The invention relates to a track-jump control device, and in particular, to a track-jump control device for determining track-jump timing in an optical disc drive. A track-jump control device of a PUH comprises an L/G position indicator, a header alignment controller, and a jump controller. The L/G position indicator calculates an amount of sectors between the current position and an upcoming L/G switch point to generate a distance value. The header alignment controller controls the destination position locating in a safe area between two headers, and then generating a jump enabling signal. The jump controller coupled to the L/G position indicator and the header alignment controller determines track-jump timing according to the distance value and the jump enabling signal.

摘要翻译： 本发明涉及一种轨道跳跃控制装置，特别涉及一种用于确定光盘驱动器中的轨道跳跃定时的轨道跳跃控制装置。 PUH的轨道跳跃控制装置包括L / G位置指示器，标题对准控制器和跳转控制器。 L / G位置指示器计算当前位置和即将到来的L / G切换点之间的扇区量，以生成距离值。 标题对齐控制器控制位于两个报头之间的安全区域中的目的地位置，然后生成跳转使能信号。 耦合到L / G位置指示器和标题对准控制器的跳转控制器根据距离值和跳转使能信号确定轨迹跳跃定时。

公开(公告)号：US20090245039A1

公开(公告)日：2009-10-01

申请号：US12177941

申请日：2008-07-23

申请人： Toshiki Uto

发明人： Toshiki Uto

IPC分类号： G11B7/00

CPC分类号： G11B7/08529 ,  G11B7/08523 ,  G11B2007/0013

摘要： An optical recording/reproducing apparatus includes a disc, a pickup to irradiate a laser beam to the disc and detect a reflected light of the irradiated laser beam, a controller to generate a tracking error signal from a signal of the reflected light and generate a control driving signal for track following by using the tracking error signal, a driving unit to perform tracking servo control by driving an actuator of the pickup according to the control driving signal, and an output unit to output an accelerating and decelerating control driving signal transmitted to the driving unit during the tracking servo control as a pulse width modulation (PWM) signal.

摘要翻译： 一种光学记录/再现装置，包括：盘，将激光束照射到盘上并检测照射的激光束的反射光的拾取器;控制器，用于从反射光的信号产生跟踪误差信号，并产生控制 通过使用跟踪误差信号进行跟踪的驱动信号，驱动单元，通过根据控制驱动信号驱动拾取器的致动器来执行跟踪伺服控制;以及输出单元，输出发送到所述驱动信号的加速和减速控制驱动信号 驱动单元在跟踪伺服控制期间作为脉宽调制（PWM）信号。

公开(公告)号：US20080247288A1

公开(公告)日：2008-10-09

申请号：US12088497

申请日：2006-09-13

申请人： Bin Yin

发明人： Bin Yin

IPC分类号： G11B5/58

CPC分类号： G11B7/24079 ,  G11B7/08505 ,  G11B7/08529 ,  G11B7/0903 ,  G11B7/0943

摘要： The present invention relates to a tracking error detection method for an optical storage system wherein an optical disk comprises a plurality of adjacent track portions with a radial track pattern in which a number n>2 of adjacent track portions repeatedly exhibit non-uniform radial track distances (TP1≠TP2 . . . ≠TPn), whereby the sum of said radial track distances (TPΣ=TP1+ . . . +TPn) is higher than the reciprocal optical cutoff λ/(2NA) of the optical disk drive. The method comprises projecting a plurality of (n) satellite light spots (S1, . . . , Sn; SL, SM) and one main spot (SR) onto said optical disk, each satellite spot being displaced in radial direction off the main spot by another one of half the radial track distances (TP1/2≠TP1/2≠ . . . ≠TPn/2), respectively, and generating push-pull signals (PP1, . . . ,PPn; PPL, PPM) for each satellite spot. The invention further relates to an optical disk drive implementing said method.

摘要翻译： 本发明涉及一种用于光学存储系统的跟踪误差检测方法，其中光盘包括具有径向轨道图案的多个相邻轨道部分，其中相邻轨道部分的数量n> 2重复地呈现不均匀的径向轨迹距离 （TP _{2），其中所述径向轨迹距离（TP＆lt; N＆gt;＆gt; 高于光盘驱动器的倒数光截止λ/（2 NA）。 该方法包括投影多个（n）个卫星光点（S 1，...，S N 2，S L 2，S 2， SUB＆gt; M）和一个主要点（S SUB R＆S）到每个卫星光点上，每个卫星点在径向方向上离开主光点的另一半径向轨迹距离（ TP 1 2 <> TP <1> / 2 <...> / 2> 对于每个卫星点，拉动信号（PP＆lt; 1＆gt;，...，PP＆lt; n＆gt;; PP＆lt; L＆gt;，＆lt; PPM） 。 本发明还涉及实现所述方法的光盘驱动器。}

公开(公告)号：US07345966B2

公开(公告)日：2008-03-18

申请号：US10711507

申请日：2004-09-23

申请人： Chia-Ling Huang

发明人： Chia-Ling Huang

IPC分类号： G11B7/00

CPC分类号： G11B7/08517 ,  G11B7/08529 ,  G11B7/08582

摘要： A method for controlling a stepping motor in an optical storage system and for achieving a short seek with the stepping motor is disclosed. The optical storage system comprises a pick-up head and object lens, wherein the object lens is movably installed on the pick-up head. The method includes determining a number of steps that the stepping motor should rotate; moving the object lens toward a target track; and utilizing the stepping motor to move the pick-up head toward a target position according to the number of steps that the stepping motor should rotate.

摘要翻译： 公开了一种用于控制光学存储系统中的步进电机并且用于通过步进电机实现短暂寻找的方法。 光学存储系统包括拾取头和物镜，其中物镜可移动地安装在拾取头上。 该方法包括确定步进电机应旋转的步数; 将物镜朝向目标轨道移动; 并且利用步进电机根据步进电机应旋转的步数将拾取头朝向目标位置移动。

公开(公告)号：US20080031097A1

公开(公告)日：2008-02-07

申请号：US11462375

申请日：2006-08-04

申请人： Leehter Yao ,  Po-Zhao Huang

发明人： Leehter Yao ,  Po-Zhao Huang

IPC分类号： G11B7/085

CPC分类号： G11B7/0945 ,  G11B7/08529

摘要： A method for automatically locating a set of optimal controller parameters for an optical drive includes the steps of generating a plurality sets of numerical values each having a number of the numerical values equal to a number of the controller parameters in the set of optimal controller parameters, driving the optical drive to search a plurality of tracks based on each of the plurality of numerical value sets so as to obtain a search result, if the search result meets a predetermined result, an optimal numerical value set among the plurality sets of numerical value is taken as the optimal controller parameters, and if the search result does not meet the predetermined result, generating a new plurality sets of numerical values as the plurality sets of numerical values and going back to the step of driving until the search result meets the predetermined result. As such, the optimal controller parameters of the optical drive can be automatically located.

摘要翻译： 一种用于自动定位用于光学驱动器的一组最佳控制器参数的方法包括以下步骤：产生多组数值，每组具有等于该组最优控制器参数中的控制器参数数量的数值， 驱动所述光驱以基于所述多个数值集合中的每一个搜索多个轨道，以便获得搜索结果，如果所述搜索结果满足预定结果，则所述多个数值集合中设置的最佳数值是 作为最佳控制器参数，并且如果搜索结果不满足预定结果，则生成新的多组数值作为多组数值并返回到驾驶步骤，直到搜索结果满足预定结果 。 因此，可以自动定位光驱的最佳控制器参数。