US 11,694,695 B2
Speaker identification
John Paul Lesso, Edinburgh (GB)
Assigned to Cirrus Logic, Inc., Austin, TX (US)
Filed by Cirrus Logic International Semiconductor Ltd., Edinburgh (GB)
Filed on Dec. 2, 2021, as Appl. No. 17/540,600.
Application 17/540,600 is a continuation of application No. 15/877,660, filed on Jan. 23, 2018, granted, now 11,264,037.
Prior Publication US 2022/0093108 A1, Mar. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 17/00 (2013.01); G10L 17/10 (2013.01); G10L 17/22 (2013.01); G10L 17/02 (2013.01); G10L 15/08 (2006.01); G10L 17/18 (2013.01); G10L 17/06 (2013.01)
CPC G10L 17/10 (2013.01) [G10L 15/08 (2013.01); G10L 17/02 (2013.01); G10L 17/06 (2013.01); G10L 17/18 (2013.01); G10L 17/22 (2013.01); G10L 2015/088 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of speaker identification, performed in a portable electronic device, wherein the portable electronic device comprises first and second integrated circuits, the method comprising:
receiving an audio signal representing speech;
performing a first voice biometric process on the audio signal in said first integrated circuit of said portable electronic device to attempt to identify whether the speech is the speech of an enrolled speaker; and
if the first voice biometric process makes an initial determination that the speech is the speech of an enrolled user, performing a second voice biometric process on the audio signal in said second integrated circuit of said portable electronic device to attempt to identify whether the speech is the speech of the enrolled speaker,
wherein the second voice biometric process is selected to be more discriminative than the first voice biometric process, and
wherein the first voice biometric process is selected to be relatively low-power compared to the second voice biometric process and wherein the first integrated circuit is configured to perform the first biometric process using relatively less power than the second integrated circuit performing the second voice biometric process.