Patent ID: 9078577
Filing Date: 2015-07-14
Classification: A61B,H03K

Abstract:
1. A detection device for amplifying and detecting a periodic signal for storage, transmission, display or processing, the detection device comprising: a preamplifier cell having a plurality of input terminals and an output terminal, the preamplifier cell amplifying the periodic signal presented at one or more of its input terminals to form a first amplified periodic signal; a signal amplifier cell having an input terminal and an output terminal, the input terminal of the signal amplifier cell in communication with the output terminal of the preamplifier cell, the signal amplifier cell amplifying the first amplified periodic signal presented at its input terminal, the signal amplifier having a bandwidth sufficient to form a filtered amplified periodic signal preserving the highest frequency pulsatile periodic features of the first amplified periodic signal; a baseline amplifier cell having an input terminal and an output terminal, the input terminal of the baseline amplifier cell in communication with the output terminal of the preamplifier cell, the baseline amplifier amplifying the first amplified periodic signal presented at its input terminal and having a bandwidth sufficient to form a baseline signal that preserves a baseline voltage while removing the periodic features of the first amplified periodic signal; a comparator cell having a first input terminal and a second input terminal and an output terminal, the first input terminal of the comparator cell in communication with the output terminal of the signal amplifier cell; and a V wherein the comparator cell generates an output signal in response to the filtered amplified periodic signal from the signal amplifier cell and the offset baseline signal from the V DC cell, the comparator cell output signal comprising a plurality of pulses corresponding to peaks in the periodic signal.