| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve a problem that a digital filter constituted by an idea based on Laplace transform and Z transform involves a delay of a following characteristic and bias fluctuation of a digital output signal to cause troubles related to the detection reliability in measuring the blood pressure such as enlarging an error of an application pressure detection level or complicating specification work of pulse period. <P>SOLUTION: To digital signal data after A/D conversion of this biological information detecting apparatus, a process for multiplying a plurality of pieces of continuous data by a superposition coefficient to acquire an average value is executed, and the average value is defined as a noise process value equivalent to a central data position of the plurality of continuous pieces of data. Consequently, the delay of the output signal following characteristic is clearly controlled so as to improve the application pressure detection accuracy and facilitate the specification work of the pulse frequency. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
