Paul Stanley Addison,James Nicholas Watson,Edward M. McKenna
申请号：
US12242915
公开号：
US08660625B2
申请日:
2008.10.01
申请国别(地区):
US
年份:
2014
代理人:
摘要：
The present disclosure relates to signal processing systems and methods, and more particularly, to systems and methods for analyzing multiparameter spaces to determine changes in a physiological state. In embodiments, a first signal and a second signal may be obtained, from which a first plurality of values of a physiological parameter may be determined. At least one of the signals also may be used to generate a scalogram derived at least in part from the signal. A second plurality of values may be determined based at least in part on a feature in the scalogram. The first and second plurality of values may then be associated, and a physiological state may be analyzed using the associated first and second values. In an embodiment, the signals may be PPG signals and the associated first and second values may include a parameter scatter plot that may permit a user to determine changes in a patients ventilation state over time.
