An apparatus and method for determining if a forward voltage of an LED in a pulse oximeter is within a predetermined range. This is accomplished by measuring the current through the LED, and also by knowing the duty cycle of the pulse width modulator (PWM) drive signal to the LED.

 
Web www.patentalert.com

< Apparatus and methods for mitigating impairments due to central auditory nervous system binaural phase-time asynchrony

< Velocity estimation apparatus and method using level crossing rate

> Method and system for detection of cardiac arrhythmia

> Universal diagnostic platform

~ 00294