Abstract: Various methods and systems for ensemble averaging signals in a pulse oximeter are provided. An ensemble averaging method includes receiving an ensemble average signal corresponding to an ensemble average of electromagnetic radiation signals detected from a blood perfused tissue of a patient and receiving a pulse signal corresponding to a pulse detected by the pulse oximeter. The method also includes warping a time axis of the ensemble average signal via dynamic programming, warping a time axis of the pulse signal via dynamic programming, or both to produce a warped ensemble average signal and a warped pulse signal having a substantially uniform width. The method further includes ensemble averaging the warped ensemble average signal and the warped pulse signal to produce an updated ensemble average signal having the substantially uniform width.

Abstract: Systems, methods, and devices for intercommunication between a medical sensor and an electronic patient monitor are provided. For example, one embodiment of a system for communicably coupling a medical sensor to an electronic patient monitor may include a sensor-side communication connector and a monitor-side communication connector. The sensor-side communication connector may be capable of receiving a raw physiological measurement signal from the medical sensor, and the monitor-side communication connector may be capable of providing a digital physiological measurement signal based at least in part on the raw physiological measurement signal to the electronic patient monitor via a data link.