US 12,135,774 B2
Methods, apparatus and systems for biometric processes
John Paul Lesso, Edinburgh (GB)
Assigned to Cirrus Logic Inc., Austin, TX (US)
Filed by Cirrus Logic International Semiconductor Ltd., Edinburgh (GB)
Filed on May 23, 2023, as Appl. No. 18/200,746.
Application 18/200,746 is a continuation of application No. 17/191,425, filed on Mar. 3, 2021, granted, now 11,714,888.
Application 17/191,425 is a continuation of application No. 16/028,964, filed on Jul. 6, 2018, granted, now 11,042,618, issued on Jun. 22, 2021.
Claims priority of provisional application 62/529,752, filed on Jul. 7, 2017.
Claims priority of application No. 1801527 (GB), filed on Jan. 30, 2018.
Prior Publication US 2023/0289422 A1, Sep. 14, 2023
Int. Cl. G06F 21/32 (2013.01); G06F 16/23 (2019.01); G06F 21/40 (2013.01); G10K 11/178 (2006.01); G10L 17/00 (2013.01); G10L 17/10 (2013.01); G10L 17/24 (2013.01)
CPC G06F 21/32 (2013.01) [G06F 16/2379 (2019.01); G06F 21/40 (2013.01); G10K 11/17823 (2018.01); G10L 17/00 (2013.01); G10K 2210/1081 (2013.01); G10K 2210/3026 (2013.01); G10K 2210/3027 (2013.01); G10L 17/10 (2013.01); G10L 17/24 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method in a biometric authentication system, the biometric authentication system for authenticating a user based on a comparison of an ear model, derived from a measured response to an acoustic stimulus applied to the user's ear, to a stored ear model for the user, the method comprising:
acquiring ear model data of the user's ear; and
subsequent to successful authentication of the user, automatically updating the stored ear model for the user with the acquired ear model data, wherein successful authentication comprises a determination that an air-conducted voice signal and a bone-conducted voice signal correspond.