US 12,248,548 B2
Detection of attachment problem of apparatus being worn by user
Takayuki Arakawa, Tokyo (JP); and Takafumi Koshinaka, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Oct. 6, 2023, as Appl. No. 18/377,477.
Application 18/377,477 is a continuation of application No. 18/070,875, filed on Nov. 29, 2022, granted, now 11,977,617.
Application 18/070,875 is a continuation of application No. 16/325,849, granted, now 11,537,695, issued on Dec. 27, 2022, previously published as PCT/JP2017/028531, filed on Aug. 7, 2017.
Claims priority of application No. 2016-161413 (JP), filed on Aug. 19, 2016.
Prior Publication US 2024/0037204 A1, Feb. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 21/32 (2013.01); A61B 5/1171 (2016.01); G06F 21/34 (2013.01); G10L 17/02 (2013.01); G10L 19/02 (2013.01); G10L 25/06 (2013.01); G10L 25/51 (2013.01); H04R 1/10 (2006.01); H04R 1/26 (2006.01); H04R 1/46 (2006.01); H04R 3/00 (2006.01)
CPC G06F 21/32 (2013.01) [A61B 5/1171 (2016.02); G06F 21/34 (2013.01); G10L 17/02 (2013.01); G10L 19/02 (2013.01); G10L 25/06 (2013.01); G10L 25/51 (2013.01); H04R 1/10 (2013.01); H04R 1/1041 (2013.01); H04R 1/1091 (2013.01); H04R 1/26 (2013.01); H04R 1/46 (2013.01); H04R 3/00 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A personal authentication device for authenticating a user, the personal authentication device comprising:
a memory storing instructions; and
at least one processor configured to execute the instructions to perform:
acquiring acoustic characteristic of the user from an acoustic signal transferred to a head of the user; and
determining whether the acoustic characteristic of the user or a feature value extracted from the acoustic characteristic satisfies a predetermined condition in accordance with an attachment trouble rule,
wherein the attachment trouble rule is preset for each person to be authenticated, and
wherein the at least one processor is configured to execute the instructions to perform:
when the acoustic characteristic or the feature value satisfies the attachment trouble rule for the user, detecting that there is an attachment trouble as to how the user wears the personal authentication device.