CONTROL OF SPECTRAL AGRESSORS IN A PHYSIOLOGICAL SIGNAL MONTORING DEVICE
    23.
    发明申请
    CONTROL OF SPECTRAL AGRESSORS IN A PHYSIOLOGICAL SIGNAL MONTORING DEVICE 有权
    生理信号监测装置中光谱受体的控制

    公开(公告)号:US20140276186A1

    公开(公告)日:2014-09-18

    申请号:US13862238

    申请日:2013-04-12

    Abstract: This disclosure describes techniques for controlling spectral aggressors in a sensing device that uses a chopper amplifier to amplify an input signal prior to sampling the signal. In some examples, the techniques for controlling spectral aggressors may include generating a chopper-stabilized amplified version of an input signal based on a chopper frequency, sampling the chopper-stabilized amplified version of the input signal at a sampling rate to generate a sampled signal, and analyzing a target frequency band of the sampled signal. The chopper frequency and the sampling rate may cause spectral interference that is generated due to the chopper frequency to occur in the sampled signal at one or more frequencies that are outside of the target frequency band of the sampled signal. The techniques for controlling spectral aggressors may reduce the noise caused by the chopper frequency in the resulting sampled signal, thereby improving the quality of the signal.

    Abstract translation: 本公开描述了用于控制感测装置中的光谱侵略者的技术,其在采样信号之前使用斩波放大器放大输入信号。 在一些示例中,用于控制频谱侵略者的技术可以包括基于斩波频率产生输入信号的斩波稳定放大版本,以采样率对输入信号的斩波稳定放大版本进行采样以产生采样信号, 并分析采样信号的目标频带。 斩波频率和采样率可能导致由于斩波频率在采样信号中在采样信号的目标频带之外的一个或多个频率处发生的频谱干扰。 用于控制频谱侵入者的技术可以减少由所得到的采样信号中的斩波频率引起的噪声,从而提高信号的质量。

Patent Agency Ranking