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热词
    • 22. 发明授权
    • Subsampling method and interpolation method of digital signals
    • 数字信号采样方法和插值方法
    • US5383144A
    • 1995-01-17
    • US794219
    • 1991-11-19
    • Shiro Kato
    • Shiro Kato
    • H04B14/04G06F17/17H03H17/06G06F15/31
    • H03H17/0664G06F17/17H03H17/0621
    • A subsampling method has a step of judging whether or not an input signal is an interpolated signal, and a subsampling step of performing only the removal of a sample when the input signal is the interpolated signal and the pre-processing and the removal of the sample when it is not. An interpolation method has at least one interpolation method in which the sample data of an input signal is directly stored. The interpolation method for an input signal can be switched in response to additional information. A detection method of additional information effects interpolation using the sample of an input signal at a predetermined position only, and compares it with the input signal, thereby detecting additional information multiplexed with the input signal.
    • 子采样方法具有判断输入信号是否是内插信号的步骤,以及当输入信号是内插信号并且样本的预处理和去除时仅执行样本去除的子采样步骤 当它不是。 内插方法具有至少一种直接存储输入信号的采样数据的插值方法。 可以响应于附加信息来切换输入信号的插值方法。 附加信息的检测方法仅使用在预定位置处的输入信号的样本进行插值,并将其与输入信号进行比较,从而检测与输入信号复用的附加信息。