Real-Time Optical Sensor for Photoplethysmography

First publication work of the author from a dissertation that has been applied real-time for neonatal monitoring purposes in delivery room. This book explains digital lock-in detection in photoplethysmography, a technique of creating graphical user interface, transferring data via RS232, Low pass filtering in java for a real-time project using object oriented programming methodology. Block diagram and flow-chart is presented where necessary.