| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately and synchronously display an intracardiac electrocardiogram with a body surface electrocardiogram. <P>SOLUTION: A biosignal acquiring system 1 includes an internal device 30 implanted in a body and detecting an electrocardiographic signal, and an external device 10 disposed outside the body and detecting the electrocardiographic signal. One of the internal device 30 and the external device 10 includes: a carrier wave generation unit 16 for generating a carrier wave that is propagatable to the other, and a modulation unit 17 for modulating the carrier wave generated by the carrier wave generation unit 16, by the electrocardiographic signal generated by the one and outputting the modulated carrier wave. The other includes a demodulation unit 36 for demodulating the electrocardiographic signal detected by the one from the carrier wave modulated by the modulation unit 17; a timing signal generation unit 41 for generating a timing signal; and an A/D conversion unit 38 for sampling the electrocardiographic signal detected by the other and the modulated electrocardiographic signal modulated by the modulation unit 36 according to the timing signal generated by the timing signal generation unit 41 so as to convert the electrocardiographic signals into digital signals. <P>COPYRIGHT: (C)2013,JPO&INPIT |
