Optical disk reproducing device and optical disk recording and reproducing device
    1.
    发明授权
    Optical disk reproducing device and optical disk recording and reproducing device 有权
    光盘再现装置和光盘记录和再现装置

    公开(公告)号:US08451698B2

    公开(公告)日:2013-05-28

    申请号:US12801260

    申请日:2010-06-01

    IPC分类号: G11B7/00 G11B5/09 G11B27/36

    摘要: An optical disk reproducing device includes: a signal reproducing section configured to read and decode information recorded on an optical disk by an optical pickup unit, and reproduce the information, wherein the signal reproducing section includes a gain controlled amplifier circuit configured to amplify an radio frequency signal generated from a light receiving element, an automatic gain control circuit configured to control a gain of the gain controlled amplifier circuit, and a signal processing section configured to derive a part of an automatic gain control value generated in the automatic gain control circuit, and generate a control signal for adjusting one of an optical system path and a detection system path for controlling the optical pickup unit.

    摘要翻译: 一种光盘再现装置,包括:信号再现部,被配置为通过光学拾取单元读取和解码记录在光盘上的信息,并再现信息,其中信号再现部分包括增益控制放大器电路,其被配置为放大射频 从受光元件产生的信号,被配置为控制增益控制放大器电路的增益的自动增益控制电路,以及被配置为导出在自动增益控制电路中生成的自动增益控制值的一部分的信号处理部,以及 生成用于调整光学系统路径和检测系统路径之一以控制光学拾取单元的控制信号。

    Optical disk reproducing device and optical disk recording and reproducing device
    2.
    发明申请
    Optical disk reproducing device and optical disk recording and reproducing device 有权
    光盘再现装置和光盘记录和再现装置

    公开(公告)号:US20110019512A1

    公开(公告)日:2011-01-27

    申请号:US12801260

    申请日:2010-06-01

    IPC分类号: G11B7/00

    摘要: An optical disk reproducing device includes: a signal reproducing section configured to read and decode information recorded on an optical disk by an optical pickup unit, and reproduce the information, wherein the signal reproducing section includes a gain controlled amplifier circuit configured to amplify an radio frequency signal generated from a light receiving element, an automatic gain control circuit configured to control a gain of the gain controlled amplifier circuit, and a signal processing section configured to derive a part of an automatic gain control value generated in the automatic gain control circuit, and generate a control signal for adjusting one of an optical system path and a detection system path for controlling the optical pickup unit.

    摘要翻译: 一种光盘再现装置,包括:信号再现部,被配置为通过光学拾取单元读取和解码记录在光盘上的信息,并再现信息,其中信号再现部分包括增益控制放大器电路,其被配置为放大射频 从受光元件产生的信号,被配置为控制增益控制放大器电路的增益的自动增益控制电路,以及被配置为导出在自动增益控制电路中生成的自动增益控制值的一部分的信号处理部,以及 生成用于调整光学系统路径和检测系统路径之一以控制光学拾取单元的控制信号。