US 12,242,577 B2
Sound-based user liveness determination
Zhenyu Yang, Dayton, OH (US); Ming Qian, Cary, NC (US); Jianbang Zhang, Cary, NC (US); and Song Wang, Cary, NC (US)
Assigned to Lenovo (Singapore) Pte. Ltd., Singapore (SG)
Filed by Lenovo (Singapore) Pte. Ltd., Singapore (SG)
Filed on Sep. 30, 2019, as Appl. No. 16/588,679.
Prior Publication US 2021/0097160 A1, Apr. 1, 2021
Int. Cl. G06F 21/32 (2013.01); G06F 21/10 (2013.01)
CPC G06F 21/32 (2013.01) [G06F 21/1015 (2023.08)] 16 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving, at an information handling device, a request from a user to access sensitive content;
detecting, using at least one sensor associated with the information handling device, a face of the user;
generating, using at least one audio output device, responsive to the request to access content, and subsequent to the detecting, an audible sound to authenticate the user, the audible sound being generated from a particular direction being a direction other than a direction the face of the user is facing;
determining, using a processor and the at least one sensor, that an expected movement of the face is identified with respect to the audible sound, wherein the expected movement indicates at least an acknowledgment of the audible sound by the user and wherein the expected movement comprises identifying the face of the user turns toward the particular direction; and
granting, responsive to determining that the expected movement is identified, the user access to the sensitive content.