An Adaptive Single Frequency Phase Vocoder for Low-power Heart Rate Detection - Development of a Fast and Low-power Heart Rate Estimation Algorithm for Mobile Phone Applications. - Walter Karlen; Guy Albert Dumont; Chris Petersen 001; Jennifer Gow; John Mark Ansermino (BIODEVICES, 2011)

Human-centered Phone Oximeter Interface Design for the Operating Room - Pulse Oximeter Interfaced to a Mobile Device for Anesthesia Monitoring in the Developing World. - Walter Karlen; Guy Albert Dumont; Chris Petersen 001; Jennifer Gow; Joanne Lim; Jules Sleiman; John Mark Ansermino (HEALTHINF, 2011)

Photoplethysmogram Processing Using an Adaptive Single Frequency Phase Vocoder Algorithm. - Walter Karlen; Chris Petersen 001; Jennifer Gow; John Mark Ansermino; Guy Albert Dumont (BIOSTEC (Selected Papers), 2011)