US 11,727,954 B2
Diagnostic techniques based on speech-sample alignment
Ilan D. Shallom, Gedera (IL)
Assigned to CORDIO MEDICAL LTD., Or Yehuda (IL)
Filed by Cordio Medical Ltd., Or Yehuda (IL)
Filed on Apr. 18, 2021, as Appl. No. 17/233,487.
Application 17/233,487 is a continuation of application No. 16/299,178, filed on Mar. 12, 2019, granted, now 11,011,188.
Prior Publication US 2021/0256992 A1, Aug. 19, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 15/00 (2013.01); G10L 25/66 (2013.01); G10L 15/30 (2013.01); G10L 15/22 (2006.01)
CPC G10L 25/66 (2013.01) [G10L 15/22 (2013.01); G10L 15/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
obtaining a first sequence of reference-sample feature vectors that quantify acoustic features of different respective portions of at least one reference speech sample, which was produced by a subject at a first time while a physiological state of the subject was known;
obtaining a second sequence of test-sample feature vectors that quantify the acoustic features of different respective portions of at least one test speech sample, which was produced by the subject at a second time while the physiological state of the subject was unknown;
aligning the test speech sample with the reference speech sample, by mapping the test-sample feature vectors to respective ones of the reference-sample feature vectors, under predefined constraints, such that a total distance between the second sequence and the first sequence is minimized; and
in response to aligning the test speech sample with the reference speech sample, generating an output indicating the physiological state of the subject at the second time.