Method for measuring a tilt control value of a pickup head in an optical disk drive
    1.
    发明申请
    Method for measuring a tilt control value of a pickup head in an optical disk drive 审中-公开
    用于测量光盘驱动器中的拾取头的倾斜控制值的方法

    公开(公告)号:US20080019236A1

    公开(公告)日:2008-01-24

    申请号:US11826958

    申请日:2007-07-19

    IPC分类号: G11B7/00

    CPC分类号: G11B7/0956

    摘要: A method for measuring a tilt angle of a pickup head. The method includes the steps of: moving the pickup head to a track to be measured; radiating a laser beam with a constant power; defining a proper range of tilt control values; controlling the tilt angle of the pickup head according to the range of tilt control values, acquiring a RF signal corresponding to each tilt control value, and storing an associated value of a associated signal; detecting the maximum among the stored associated values; selecting and storing the tilt control value corresponding to the maximum as the optimum tilt control value for the track if there is a maximum; and modifying the range of tilt control values and executing the previous steps if there is no maximum. The so-called associated signal includes a tracking error signal, a reading/writing RF signal, an S-curve signal, or the RF signal.

    摘要翻译: 一种用于测量拾取头的倾斜角度的方法。 该方法包括以下步骤:将拾取头移动到要测量的轨道; 以恒定功率辐射激光束; 定义适当范围的倾斜控制值; 根据倾斜控制值的范围控制拾取头的倾斜角度,获取与每个倾斜控制值相对应的RF信号,并存储关联信号的相关值; 检测存储的关联值中的最大值; 选择并存储对应于最大值的倾斜控制值作为轨迹的最佳倾斜控制值,如果有最大值; 并且如果没有最大值,则修改倾斜控制值的范围并执行前面的步骤。 所谓的相关信号包括跟踪误差信号,读/写RF信号,S曲线信号或RF信号。

    Method for calibrating tilt control values of a pickup head in real time
    2.
    发明授权
    Method for calibrating tilt control values of a pickup head in real time 有权
    用于实时校准拾取头的倾斜控制值的方法

    公开(公告)号:US07266059B2

    公开(公告)日:2007-09-04

    申请号:US10915476

    申请日:2004-08-11

    IPC分类号: G11B7/00

    摘要: A method for calibrating tilt control values of a PUH in real time is applied to an optical disk drive and includes the steps of: creating a look-up table, the look-up table including several optical disk data/physical addresses of track zones and the corresponding tilt control values; reading tilt control values as reference values from the look-up table corresponding the track position of a PUH; calculating a current tilt control value according to the reference values; controlling the PUH according to the current tilt control value; reading a decoding error generated during a decoding procedure of the optical disk drive; calibrating the tilt control values and updating the look-up table. When the decoding error is larger than a decoding error threshold, the tilt control values of the track zone is calibrated. Hence, even an irregularly deformed optical disk can be calibrated to obtain better tilt control values.

    摘要翻译: 一种用于将PUH的倾斜控制值实时校准的方法被应用于光盘驱动器,并且包括以下步骤:创建查找表,查找表包括轨道区域的若干光盘数据/物理地址,以及 相应的倾斜控制值; 从与PUH的轨道位置对应的查找表中读取倾斜控制值作为参考值; 根据参考值计算当前倾斜控制值; 根据当前的倾斜控制值控制PUH; 读取在光盘驱动器的解码过程期间产生的解码错误; 校准倾斜控制值并更新查找表。 当解码误差大于解码误差阈值时,轨道区域的倾斜控制值被校准。 因此,甚至可以对不规则变形的光盘进行校准,以获得更好的倾斜控制值。

    Method for calibrating tilt control values of a pickup head in real time
    3.
    发明申请
    Method for calibrating tilt control values of a pickup head in real time 有权
    用于实时校准拾取头的倾斜控制值的方法

    公开(公告)号:US20050036420A1

    公开(公告)日:2005-02-17

    申请号:US10915476

    申请日:2004-08-11

    摘要: A method for calibrating tilt control values of a PUH in real time is applied to an optical disk drive and includes the steps of: creating a look-up table, the look-up table including several optical disk data/physical addresses of track zones and the corresponding tilt control values; reading tilt control values as reference values from the look-up table corresponding the track position of a PUH; calculating a current tilt control value according to the reference values; controlling the PUH according to the current tilt control value; reading a decoding error generated during a decoding procedure of the optical disk drive; calibrating the tilt control values and updating the look-up table. When the decoding error is larger than a decoding error threshold, the tilt control values of the track zone is calibrated. Hence, even an irregularly deformed optical disk can be calibrated to obtain better tilt control values.

    摘要翻译: 一种用于将PUH的倾斜控制值实时校准的方法被应用于光盘驱动器,并且包括以下步骤:创建查找表,查找表包括轨道区域的若干光盘数据/物理地址,以及 相应的倾斜控制值; 从与PUH的轨道位置对应的查找表中读取倾斜控制值作为参考值; 根据参考值计算当前倾斜控制值; 根据当前的倾斜控制值控制PUH; 读取在光盘驱动器的解码过程期间产生的解码错误; 校准倾斜控制值并更新查找表。 当解码误差大于解码误差阈值时,轨道区域的倾斜控制值被校准。 因此,甚至可以对不规则变形的光盘进行校准,以获得更好的倾斜控制值。

    Control device of a pickup head for locating the track position
    4.
    发明授权
    Control device of a pickup head for locating the track position 失效
    用于定位轨道位置的拾取头的控制装置

    公开(公告)号:US6154424A

    公开(公告)日:2000-11-28

    申请号:US69498

    申请日:1998-04-29

    IPC分类号: G11B7/085 G11B7/00

    CPC分类号: G11B7/08517

    摘要: A control device to locate the pickup head on the desired position yielded by the operation of seek is taken in two parts. The first part is utilizing the velocity control to prevent the fluctuation problem of the bi-mass system and the second part is switching the operation to the mode of position control gradually, so that the pickup head can reach the destination precisely and minimize the problem of fluctuation and increase the successful rate of the tracking control. Moreover, this invention has utilized a feedforward control to properly compensate the steady state error originated from the characteristics of system or friction, a position feedback control and a switching factor to gradually switch between the modes of velocity and position. Thus, the position and velocity of the sled motor can be controlled at the same time to allow the pickup head to reach the destination smoothly as expected by the designed of the velocity profile. The tracking control therefore is done smoothly.

    摘要翻译: 将拾取头定位在通过寻找操作产生的期望位置上的控制装置分为两部分。 第一部分是利用速度控制来防止双质量系统的波动问题,第二部分逐渐将操作切换到位置控制模式,使得拾取头可以精确到达目的地,并最大限度地减少问题 波动和增加跟踪控制的成功率。 此外,本发明利用前馈控制来适当地补偿来自系统或摩擦特性的稳态误差,位置反馈控制和切换因素,以逐渐在速度和位置的模式之间切换。 因此,可以同时控制滑板马达的位置和速度,以允许拾取头平滑地到达目的地,如通过设计的速度分布所预期的。 因此,跟踪控制顺利进行。

    Method for measuring a tilt control value of a pickup head in an optical disk drive
    5.
    发明授权
    Method for measuring a tilt control value of a pickup head in an optical disk drive 有权
    用于测量光盘驱动器中的拾取头的倾斜控制值的方法

    公开(公告)号:US07263041B2

    公开(公告)日:2007-08-28

    申请号:US10914097

    申请日:2004-08-10

    IPC分类号: G11B7/00

    CPC分类号: G11B7/0956

    摘要: A method for measuring a tilt angle of a pickup head. The method includes the steps of: moving the pickup head to a track to be measured; radiating a laser beam with a constant power; defining a proper range of tilt control values; controlling the tilt angle of the pickup head according to the range of tilt control values, acquiring a RF signal corresponding to each tilt control value, and storing an associated value of a associated signal; detecting the maximum among the stored associated values; selecting and storing the tilt control value corresponding to the maximum as the optimum tilt control value for the track if there is a maximum; and modifying the range of tilt control values and executing the previous steps if there is no maximum. The so-called associated signal includes a tracking error signal, a reading/writing RF signal, an S-curve signal, or the RF signal.

    摘要翻译: 一种用于测量拾取头的倾斜角度的方法。 该方法包括以下步骤:将拾取头移动到要测量的轨道; 以恒定功率辐射激光束; 定义适当范围的倾斜控制值; 根据倾斜控制值的范围控制拾取头的倾斜角度,获取与每个倾斜控制值相对应的RF信号,并存储关联信号的相关值; 检测存储的关联值中的最大值; 选择并存储对应于最大值的倾斜控制值作为轨迹的最佳倾斜控制值,如果有最大值; 并且如果没有最大值,则修改倾斜控制值的范围并执行前面的步骤。 所谓的相关信号包括跟踪误差信号,读/写RF信号,S曲线信号或RF信号。

    Safety warning light device for vehicle
    6.
    发明授权
    Safety warning light device for vehicle 失效
    车辆安全警示灯装置

    公开(公告)号:US07088228B2

    公开(公告)日:2006-08-08

    申请号:US10801747

    申请日:2004-03-12

    IPC分类号: B60Q1/50

    CPC分类号: B60Q1/44 B60Q1/441

    摘要: A warning light device includes a light member, and a coupling device for coupling the light member to the accelerator pedal of the vehicle, to actuate the light member to generate warning light when the accelerator pedal of the vehicle is released by the drivers, in order to indicate the releasing of the accelerator pedal of the vehicle, and for allowing the following drivers to have a longer time to make responses or to take actions. A rack may be coupled to the accelerator pedal, and a gear may be rotatably engaged onto a spindle of a generator, to actuate the generator to energize the light member when the accelerator pedal is released by the drivers.

    摘要翻译: 警告灯装置包括一个灯构件和用于将灯构件耦合到车辆的加速器踏板的联接装置,以便当车辆的加速器踏板由驾驶员释放时致动该灯构件以产生警告灯 以指示车辆的加速器踏板的释放,并且允许以下驾驶员有更长的时间进行响应或采取行动。 机架可以联接到加速器踏板,并且齿轮可以可旋转地接合到发电机的主轴上,以在加速踏板被驱动器释放时致动发电机以激励光部件。

    Method for calibrating a tilt angle of pickup head using a focus signal
    7.
    发明申请
    Method for calibrating a tilt angle of pickup head using a focus signal 审中-公开
    使用聚焦信号校准拾取头的倾斜角的方法

    公开(公告)号:US20050117473A1

    公开(公告)日:2005-06-02

    申请号:US10995190

    申请日:2004-11-24

    IPC分类号: G11B7/00 G11B7/095

    CPC分类号: G11B7/0956

    摘要: A method for calibrating a relative tilt angle between a disc and a pickup head using a focus signal. The method includes the steps of moving the pickup head to a first position and performing the focusing operation; obtaining a first variation of a focus signal of the pickup head at a first position; moving the pickup head by a default distance to a second position and performing the focusing operation; obtaining a second variation of the focus signal of the pickup head at a second position; and calculating the relative tilt angle according to the default distance and the first and second variations. The focus signal includes a focus error signal and a focus control signal, both of which have been stored in a control circuit of an optical disc drive. Consequently, the invention utilizes the focus signal to detect the tilt angle of the pickup head without adding any displacement sensor.

    摘要翻译: 一种使用聚焦信号来校准盘和拾取头之间的相对倾斜角的方法。 该方法包括以下步骤:将拾取头移动到第一位置并执行聚焦操作; 在第一位置处获取拾取头的聚焦信号的第一变化; 将拾取头移动到第二位置的默认距离并执行聚焦操作; 在第二位置获得拾取头的聚焦信号的第二变化; 以及根据默认距离和第一和第二变化计算相对倾斜角。 聚焦信号包括聚焦误差信号和聚焦控制信号,两者都被存储在光盘驱动器的控制电路中。 因此,本发明利用聚焦信号来检测拾取头的倾斜角度而不添加任何位移传感器。

    Method for measuring a tilt control value of a pickup head in an optical disk drive
    8.
    发明申请
    Method for measuring a tilt control value of a pickup head in an optical disk drive 有权
    用于测量光盘驱动器中的拾取头的倾斜控制值的方法

    公开(公告)号:US20050036419A1

    公开(公告)日:2005-02-17

    申请号:US10914097

    申请日:2004-08-10

    IPC分类号: G11B7/00 G11B7/095

    CPC分类号: G11B7/0956

    摘要: A method for measuring a tilt angle of a pickup head. The method includes the steps of: moving the pickup head to a track to be measured; radiating a laser beam with a constant power; defining a proper range of tilt control values; controlling the tilt angle of the pickup head according to the range of tilt control values, acquiring a RF signal corresponding to each tilt control value, and storing an associated value of a associated signal; detecting the maximum among the stored associated values; selecting and storing the tilt control value corresponding to the maximum as the optimum tilt control value for the track if there is a maximum; and modifying the range of tilt control values and executing the previous steps if there is no maximum. The so-called associated signal includes a tracking error signal, a reading/writing RF signal, an S-curve signal, or the RF signal.

    摘要翻译: 一种用于测量拾取头的倾斜角度的方法。 该方法包括以下步骤:将拾取头移动到要测量的轨道; 以恒定功率辐射激光束; 定义适当范围的倾斜控制值; 根据倾斜控制值的范围控制拾取头的倾斜角度,获取与每个倾斜控制值相对应的RF信号,并存储关联信号的相关值; 检测存储的关联值中的最大值; 选择并存储对应于最大值的倾斜控制值作为轨迹的最佳倾斜控制值,如果有最大值; 并且如果没有最大值,则修改倾斜控制值的范围并执行前面的步骤。 所谓的相关信号包括跟踪误差信号,读/写RF信号,S曲线信号或RF信号。

    Auto gain adjustment apparatus and method for focusing and tracking
control of the optical pickup of an optical disc drive
    9.
    发明授权
    Auto gain adjustment apparatus and method for focusing and tracking control of the optical pickup of an optical disc drive 失效
    用于对光盘驱动器的光学拾取器进行聚焦和跟踪控制的自动增益调节装置和方法

    公开(公告)号:US6157601A

    公开(公告)日:2000-12-05

    申请号:US56163

    申请日:1998-04-06

    IPC分类号: G11B7/09 G11B7/095

    CPC分类号: G11B7/0941

    摘要: An auto gain adjustment apparatus and method are provided for the focusing/tracking control of the optical pickup of an optical disc drive. The gain is obtained by utilizing the self-sustained oscillation from a non-linear component in the optical disc drive, such as a relay circuit with hysteresis. This gain adjustment apparatus and method is more advantageous than the prior art in that the gain can be automatically adjusted without involving manual work and the need to apply an externally generated oscillating test signal. The apparatus and method therefore allows the manufacture and utilization of the optical disc drive to be more efficient and cost-effective.

    摘要翻译: 提供了一种用于光盘驱动器的光学拾取器的聚焦/跟踪控制的自动增益调节装置和方法。 通过利用诸如具有滞后的继电器电路的光盘驱动器中的非线性分量的自持振荡来获得增益。 该增益调整装置和方法比现有技术更有利,因为可以在不涉及手动工作的情况下自动调整增益,并且需要应用外部产生的振荡测试信号。 因此,该装置和方法允许光盘驱动器的制造和利用更有效和更具成本效益。