Device and method for determining vital signs of a subject

G. de Haan (Inventor)

Research output: PatentPatent publication

43 Downloads (Pure)


The present invention relates to a Device for determining vital signs of a subject comprising an interface (22) for receiving a periodic photoplethysmographic, PPG, signal obtained from a subject (14) by a PPG measurement, a signal partitioning unit (24) for partitioning the PPG signal in time into a plurality of PPG sub-signals covering a half period or an integer multiple of a half period, a normalizing unit (26) for normalizing the PPG signal in advance of the partitioning and/or the PPG sub-signals in time and/or amplitude, a signal combination unit (28) for combining a number of normalized PPG sub-signals to obtain a combined PPG sub-signal, and a vital sign processor (30) for deriving a desired vital sign from the PPG signal, one or more combined PPG sub-signals or an enhanced PPG signal obtained by consecutively arranging a number of combined PPG sub-signals.

Original languageEnglish
Patent numberWO2015086338
IPCA61B 5/ 00 A I
Priority date12/12/13
Publication statusPublished - 18 Jun 2015


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