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    • 23. 发明授权
    • Optical disk drive signal calibration method and device for the same
    • 光盘驱动器信号的校准方法和设备相同
    • US07447134B2
    • 2008-11-04
    • US11349936
    • 2006-02-09
    • Chia-Hua ChouChih-Cheng Chen
    • Chia-Hua ChouChih-Cheng Chen
    • G11B5/09
    • G11B7/1267
    • The present invention is described for compensating a signal which is transmitted by a transmitting module of the optical disk drive controller through a signal channel and received and reshaped by a receiving module of the optical pickup head to calibrate the duty cycle distortion occurred. The claimed method has the steps of providing a periodic test signal, and then delaying the periodic test signal to form an adjusted test signal and adjusting a delay of an edge between the periodic test signal and the adjusted test signal instructed by a calibration signal. Afterward, the method further has the steps of transmitting the adjusted test signal to the receiving module through the signal channel, and receiving and reshaping the adjusted test signal to form a received signal, and then generating a monitor signal, finally, the method has a step of generating the calibration signal in accordance with the monitor signal.
    • 描述了本发明,用于补偿由光盘驱动器控制器的发送模块通过信号通道发送的信号,并由光学拾取头的接收模块接收和重新整形,以校准发生的占空比失真。 要求保护的方法具有提供周期性测试信号,然后延迟周期性测试信号以形成调整的测试信号,并且调整周期性测试信号与由校准信号指示的经调整的测试信号之间的边缘的延迟。 此后,该方法还具有通过信号通道将调整后的测试信号发送到接收模块的步骤,并且接收和重新调整经调整的测试信号以形成接收信号,然后产生监视信号,最后该方法具有 根据监视信号产生校准信号的步骤。
    • 27. 发明申请
    • DATA SLICER CAPABLE OF CALIBRATING CURRENT MISMATCH
    • 用于校准电流误差的数据切换器
    • US20050074076A1
    • 2005-04-07
    • US10708616
    • 2004-03-15
    • Chih-Cheng ChenShang-Ping Chen
    • Chih-Cheng ChenShang-Ping Chen
    • H04L25/06
    • H04L25/063
    • A data slicer includes a comparator coupled with an input signal and a reference signal for generating a sliced signal, a waveform generator for generating a calibration signal, a pulse extension device coupled to the comparator and the waveform generator for modifying the duty cycle of the sliced signal or the calibration signal to output, a charge pump coupled between the pulse extension device and a first node for charging and discharging the first node according to the signal output from the pulse extension device, a determining circuit for adjusting the data slicer according to the level change at the first node, and a feedback device coupled between the first node and the comparator for generating the reference signal.
    • 数据限幅器包括与输入信号和用于产生分片信号的参考信号耦合的比较器,用于产生校准信号的波形发生器,耦合到比较器的脉冲扩展装置和用于修改切片信号的占空比的波形发生器 信号或校准信号输出;电荷泵,其耦合在所述脉冲扩展装置和第一节点之间,用于根据从所述脉冲扩展装置输出的信号对所述第一节点进行充电和放电;确定电路,用于根据所述脉冲扩展装置调整所述数据限幅器 第一节点处的电平变化,以及耦合在第一节点和比较器之间用于产生参考信号的反馈装置。
    • 30. 发明授权
    • Optical drive controller providing calibrated laser diode driver
    • 提供校准激光二极管驱动器的光驱控制器
    • US07586822B2
    • 2009-09-08
    • US10623264
    • 2003-07-18
    • Chia-Hua ChouChih-Cheng Chen
    • Chia-Hua ChouChih-Cheng Chen
    • G11B7/00
    • G11B7/1267
    • An optical disk drive includes an optical disk drive controller that can test the write channels between the controller and the laser diode driver. Using the results of this testing, the optical disk drive controller adjusts the characteristics of the write channel signals provided to the laser diode driver to correct for one or more detected imperfections in the write channel signals. Both the optical disk drive controller and the laser diode driver have communications ports to facilitate communication. The optical disk drive controller programs the operating characteristics of the laser diode driver so that the laser diode driver can be optimized for the measured characteristics of the write channels.
    • 光盘驱动器包括可以测试控制器和激光二极管驱动器之间的写入通道的光盘驱动器控制器。 使用该测试的结果,光盘驱动器控制器调整提供给激光二极管驱动器的写入通道信号的特性,以校正写入通道信号中的一个或多个检测到的缺陷。 光盘驱动器控制器和激光二极管驱动器都具有通信端口以便于通信。 光盘驱动器控制器编程激光二极管驱动器的工作特性,使激光二极管驱动器可以针对测量的写通道特性进行优化。