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Personal authentication device, personal authentication method, and personal authentication program using acoustic signal propagation

專利號
US10867019B2
公開日期
2020-12-15
申請人
NEC Corporation; Shouhei Yano（JP Tokyo JP Nagaoka）
發(fā)明人
Shouhei Yano; Takayuki Arakawa; Takafumi Koshinaka; Hitoshi Imaoka; Hideki Irisawa
IPC分類
G06F21/32; G10L25/51; G01N29/11; G01N29/46; A61B5/117; A61B5/12; A61B5/00; G10L17/02; G10L21/0208
技術(shù)領(lǐng)域
acoustic,signal,property,means,personal,user,feature,noise,device,head
地域： Tokyo

摘要

A personal authentication device includes: acoustic signal transmission means 701 for transmitting a first acoustic signal to a part of a head of a user; acoustic signal observation means 702 for observing a second acoustic signal which is an acoustic signal after the first acoustic signal propagates through the part of the head; acoustic property calculation means 703 for calculating an acoustic property from the first acoustic signal and the second acoustic signal; and user identification means 704 for identifying the user, based on the acoustic property or a feature value extracted from the acoustic property and relating to the user.

說明書

FIG. 6 is a block diagram depicting an example of the structure of a personal authentication device in Exemplary Embodiment 2.

FIG. 7 is a block diagram depicting another example of the structure of the personal authentication device in Exemplary Embodiment 2.

FIG. 8 is a block diagram depicting another example of the structure of the personal authentication device in Exemplary Embodiment 2.

FIG. 9 is a block diagram depicting an example of the structure of a personal authentication device in Exemplary Embodiment 3.

FIG. 10 is a block diagram depicting an example of the structure of a personal authentication device in Exemplary Embodiment 4.

FIG. 11 is a flowchart depicting an example of the operation of the personal authentication device in Exemplary Embodiment 4.

FIGS. 12(a) and 12(b) are explanatory diagrams depicting an example of superimposing, on musical sound, another acoustic signal.

FIGS. 13(a) and 13(b) are explanatory diagrams depicting an example of superimposing, on musical sound, another acoustic signal.

FIG. 14 is a block diagram depicting an overview of the present invention.

DESCRIPTION OF EMBODIMENT Exemplary Embodiment 1

權(quán)利要求

1
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