公开(公告)号：US07218579B2

公开(公告)日：2007-05-15

申请号：US10829968

申请日：2004-04-23

Applicant: Feng-Fu Lin ,  Yi-Jen Chung

Inventor： Feng-Fu Lin ,  Yi-Jen Chung

IPC: G11B7/00

CPC classification number: G11B7/08529

Abstract: A optical disk drive long distance seek control device and method thereof, capable of feeding back the optical head control device through the step motor control device during the long distance seek; wherein, the step motor control device comprises a velocity profile generator capable of producing a quadratic profile to stabilize the step motor when finishing the seek; and more particular, the optical head control device uses a center error signal and a velocity error signal alternatively; moreover, the velocity error signal can be adjusted according to the output signals from the optical head control device and the step motor control device through a weighting mechanism.

Abstract translation: 一种光盘驱动器长距离寻道控制装置及其方法，能够在长距离寻道期间通过步进电机控制装置反馈光头控制装置; 其中，所述步进马达控制装置包括速度分布发生器，其能够产生二次轮廓以在完成所述寻道时稳定所述步进马达; 更具体地说，光头控制装置交替使用中心误差信号和速度误差信号; 此外，速度误差信号可以根据来自光头控制装置和步进电机控制装置的输出信号通过加权机构进行调整。

公开(公告)号：US20050190667A1

公开(公告)日：2005-09-01

申请号：US10829968

申请日：2004-04-23

Applicant: Feng-Fu Lin ,  Yi-Jen Chung

Inventor： Feng-Fu Lin ,  Yi-Jen Chung

IPC: G11B7/00 ,  G11B7/085

CPC classification number: G11B7/08529

Abstract: A optical disk drive long distance seek control device and method thereof, capable of feeding back the optical head control device through the step motor control device during the long distance seek; wherein, the step motor control device comprises a velocity profile generator capable of producing a quadratic profile to stabilize the step motor when finishing the seek; and more particular, the optical head control device uses a center error signal and a velocity error signal alternatively; moreover, the velocity error signal can be adjusted according to the output signals from the optical head control device and the step motor control device through a weighting mechanism.

Abstract translation: 一种光盘驱动器长距离寻道控制装置及其方法，能够在长距离寻道期间通过步进电机控制装置反馈光头控制装置; 其中，所述步进马达控制装置包括速度分布发生器，其能够产生二次轮廓以在完成所述寻道时稳定所述步进马达; 更具体地说，光头控制装置交替使用中心误差信号和速度误差信号; 此外，速度误差信号可以根据来自光头控制装置和步进电机控制装置的输出信号通过加权机构进行调整。

公开(公告)号：US20050081626A1

公开(公告)日：2005-04-21

申请号：US10708401

申请日：2004-03-01

Applicant: Feng-Fu Lin ,  Tung-Hsu Hsieh

Inventor： Feng-Fu Lin ,  Tung-Hsu Hsieh

IPC: G01M1/16 ,  G11B5/596 ,  G11B23/00 ,  G11B33/08

CPC classification number: G11B33/08 ,  G11B5/59627

Abstract: A CD drive has a pick-up head for reading data of an optical disc, and a motor for rotating the optical disc. The method first adjusts the rotary speed of the motor so that the vibration frequency of the CD drive is approximately the resonance frequency of a coil of the pick-up head. Then, when the vibration frequency of the CD drive is approximately the resonance frequency of the coil of the pick-up head, the method detects if the voltage of a central error (CE) signal of the CD drive is greater than a threshold voltage. Finally, the method determines if the optical disc is an unbalanced disc according to the comparison result.

Abstract translation: CD驱动器具有用于读取光盘数据的拾取头和用于旋转光盘的电动机。 该方法首先调节电动机的转速，使得CD驱动器的振动频率近似于拾取头的线圈的共振频率。 然后，当CD驱动器的振动频率近似于拾取头的线圈的谐振频率时，该方法检测CD驱动器的中心误差（CE）信号的电压是否大于阈值电压。 最后，该方法根据比较结果确定光盘是不平衡盘。

公开(公告)号：US20110243270A1

公开(公告)日：2011-10-06

申请号：US12962667

申请日：2010-12-08

Applicant: Kuan-Kai Juan ,  Chia-Wei Liang ,  Feng-Fu Lin ,  Ming-Jiou Yu ,  Cheng-Chung Kuo ,  Shy-Junn Hsiao

Inventor： Kuan-Kai Juan ,  Chia-Wei Liang ,  Feng-Fu Lin ,  Ming-Jiou Yu ,  Cheng-Chung Kuo ,  Shy-Junn Hsiao

IPC: H04L27/04 ,  H04B1/38

CPC classification number: G06F13/4072

Abstract: An exemplary signal processing apparatus includes a signal transmission port, a first signal processing circuit, a second signal processing circuit, and a control circuit. The signal transmission port is shared between a first signal processing operation and a second signal processing operation. The first signal processing circuit performs the first signal processing operation, wherein when the signal processing apparatus operates, the first signal processing circuit is not required to be consistently enabled to use the signal transmission port for signal transmission. The second signal processing circuit performs the second signal processing operation, wherein the signal transmission port is not always required to carry out signal transmission each time the second signal processing circuit is enabled to perform the second signal processing operation. The control circuit selectively enables the first signal processing circuit or the second signal processing circuit.

Abstract translation: 示例性信号处理装置包括信号传输端口，第一信号处理电路，第二信号处理电路和控制电路。 信号传输端口在第一信号处理操作和第二信号处理操作之间共享。 第一信号处理电路执行第一信号处理操作，其中当信号处理装置工作时，不需要始终使第一信号处理电路使用信号传输端口进行信号传输。 第二信号处理电路执行第二信号处理操作，其中每当第二信号处理电路能够执行第二信号处理操作时，信号传输端口并不总是需要执行信号传输。 控制电路选择性地启用第一信号处理电路或第二信号处理电路。

公开(公告)号：US20060083126A1

公开(公告)日：2006-04-20

申请号：US11236642

申请日：2005-09-28

Applicant: Feng-Fu Lin ,  Chih-Han Liu

Inventor： Feng-Fu Lin ,  Chih-Han Liu

IPC: G11B7/00

CPC classification number: G11B7/08511

Abstract: An apparatus for controlling half-wave layer jumping of a pickup head of an optical disk drive includes a half-wave layer jump controller and an output logic unit. The controller receives a focus error signal from a preamplifier to generate a control signal according to the half wave of the focus error signal. The output logic unit outputs a kickout signal, a half-wave layer jump control compensation, and a brake signal in accordance with the timing of the half-wave layer jump control. The output signal are added to a gap balance signal, and the sum is used for controlling layer jumping of the pickup head. Such method adopts an error obtained by comparing the focus error signal with an ideal cycle signal as an additional compensational force for layer jumping.

Abstract translation: 用于控制光盘驱动器的拾取头的半波跳跃的装置包括半波跳跳控制器和输出逻辑单元。 控制器从前置放大器接收聚焦误差信号，根据聚焦误差信号的半波产生控制信号。 输出逻辑单元根据半波跳跳控制的定时输出跳闸信号，半波跳跳控制补偿和制动信号。 输出信号被添加到间隙平衡信号中，并且用于控制拾取头的层跳跃。 这种方法采用通过将聚焦误差信号与理想周期信号进行比较而获得的误差作为层跳跃的附加补偿力。