William Shea

Oximeter sensor with encoded temperature characteristic

Techniques for detecting heart pulses and reducing power consumption in sensors

Multi-bit ADC with sigma-delta modulation

Oximeter ambient light cancellation

Delta-sigma modulator for outputting analog representation of physiological signal

Switch-mode oximeter LED drive with a single inductor

Oximeter cross-talk reduction

LED forward voltage estimation in pulse oximeter

Real-time measurement/display/record/playback of wavefront data for use in vision correction procedures

Apparatus and method for operating a real time large diopter range sequential wavefront sensor