Composite data detector and a method for detecting data
    3.
    发明授权
    Composite data detector and a method for detecting data 有权
    复合数据检测器和数据检测方法

    公开(公告)号:US07646829B2

    公开(公告)日:2010-01-12

    申请号:US11021019

    申请日:2004-12-23

    IPC分类号: H04L27/06

    摘要: A composite data detector having first and second data detectors. The second detector of the invention starts in a known state and only runs as long as is necessary before being switched off and handing control back over to the smaller detector. Therefore, the composite data detector of the invention consumes less power than the known composite data detector and estimates bits with higher accuracy.

    摘要翻译: 一种具有第一和第二数据检测器的复合数据检测器。 本发明的第二检测器以已知状态开始,并且仅在被切断之前必要时运行并且将控制返回到较小检测器。 因此,本发明的复合数据检测器比已知的复合数据检测器消耗更少的功率,并且以更高的精度估计比特。

    Variable gain voltage signal amplifier
    4.
    发明授权
    Variable gain voltage signal amplifier 失效
    可变增益电压信号放大器

    公开(公告)号:US5412346A

    公开(公告)日:1995-05-02

    申请号:US166488

    申请日:1993-12-13

    IPC分类号: H03G1/00 H03G3/00 H03G3/20

    摘要: A variable gain voltage signal amplifier is provided for incorporation in an automatic gain control circuit, such as for a disk drive. The variable gain voltage signal amplifier comprises: an amplifier including an inverting input voltage signal terminal and an output voltage signal terminal. The amplifier includes an input signal path coupled to the input voltage signal terminal and further includes a feedback signal path coupling between the input voltage signal terminal and the output voltage signal terminal. The input signal path comprises a capacitor coupled in series with a resistor, and the feedback signal path comprises a resistor. At least one of the resistors comprises an electronic signal-controlled resistor.

    摘要翻译: 提供可变增益电压信号放大器用于并入自动增益控制电路,例如磁盘驱动器。 可变增益电压信号放大器包括:放大器,包括反相输入电压信号端子和输出电压信号端子。 放大器包括耦合到输入电压信号端子的输入信号路径,并且还包括在输入电压信号端子和输出电压信号端子之间耦合的反馈信号路径。 输入信号路径包括与电阻器串联耦合的电容器,反馈信号路径包括电阻器。 至少一个电阻器包括电子信号控制电阻器。