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1. 发明授权

US4325384A Digitally controlled amplitude regulating device for electrocardiographic signals 失效
标题翻译：用于心电图信号的数字控制振幅调节装置
公开(公告)号：US4325384A
公开(公告)日：1982-04-20
申请号：US101495
申请日：1979-12-10
申请人： Reinhard Blaser , Klaus Olach , Max Schaldach
发明人： Reinhard Blaser , Klaus Olach , Max Schaldach
IPC分类号： A61B5/04 , H03G3/20 , A61N1/36
CPC分类号： H03G1/0088 , A61B5/04004 , H03G3/30 , Y10S128/902
摘要： A signal processing device composed of: a signal input for receiving an electrocardiographic signal containing a succession of QRS complexes; a signal output; a digitally operating unit having a transmission factor which is variable in discrete steps and connected between the signal input and output for supplying to the signal output a signal containing representations of the QRS complexes contained in the signal received by the signal input, with the relation between the amplitude of the signal at the signal output and the amplitude of the corresponding portions of the signal received by the signal input being proportional to the existing transmission factor of the digitally operating unit; and a transmission factor control unit connected to monitor the signal at the signal output for increasing the transmission factor of the digitally operating unit by one step in response to each appearance at the signal output of a QRS complex representation having a peak value between selected first and second threshold values and for reducing the transmission factor by one step in response to each appearance at the signal output of a QRS complex representation having a peak value greater than a selected third threshold value higher than each of the first and second threshold values.
摘要翻译：一种信号处理装置，包括：用于接收包含一系列QRS复合物的心电图信号的信号输入; 信号输出; 数字操作单元，其具有可在离散步长中变化并连接在信号输入和输出之间的传输因子，用于向信号输出提供包含由信号输入接收的信号中包含的QRS复合物的表示的信号，信号输出处的信号的幅度和由信号输入接收的信号的对应部分的幅度与数字操作单元的现有传输因子成正比; 以及传输因子控制单元，其连接以监测信号输出处的信号，以响应于QRS复数表示的信号输出处的每个出现增加数字操作单元的传输因子一步，所述QRS复数表示具有在所选择的第一和第第二阈值，并且用于响应于QRS复数表示的信号输出处的每个出现响应于大于比第一和第二阈值中的每一个阈值高的所选择的第三阈值的峰值，将传输因子减小一个步长。

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