Patent ID: 11869533
Assignee: DR. ING. H. C. F. PORSCHE AG
Field: Medical technology (Instruments)
Classification: CPC A  G  H | IPC G  H

Claim 5:
6. A method for tiredness detection, the method comprising: receiving a signal from at least one microphone, acquiring a time characteristic of yawning actions in the signal, analyzing the time characteristic to detect or not detect a tiredness of the driver from a frequency of yawning, a yawn intensity and/or a temporal compression between successive yawning actions, wherein the signal is analyzed by extracting at least one paralinguistic trait selected from the group consisting of a pitch characteristic, a continuity of a tonal characteristic, and/or at least one spectral trait, a chronological succession of audible inhalation and tonal exhalation being detected in the time characteristic and a result of the analysis being determined on the basis of the chronological succession.