SIGNAL PROCESSING DEVICE FOR ANALYZING BIO-SIGNAL AND BIO-SIGNAL ANALYZING DEVICE USING SAME

摘要

According to an aspect of the present invention, a signal processing device for processing a bio-signal comprises: a lock-in amp chip outputting a modulation signal of which a frequency is modulated, and driving one or more optical sources by the modulation signal; and a multiplexer receiving and multiplexing an optical sensing signal measured from each of a plurality of optical measurement units after light is emitted by the optical source. The lock-in amp chip sequentially demodulates the plurality of optical sensing signals transferred through the multiplexer.;COPYRIGHT KIPO 2019