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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
技術領域
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

PTL 2 discloses a method of performing personal authentication using bone conducted sound received by a bone conduction microphone, instead of voice propagating through air.

CITATION LIST Patent Literatures

  • PTL 1: Japanese Patent Application Laid-Open No. 2010-286702
  • PTL 2: Japanese Patent Application Laid-Open No. 2003-58190

Non Patent Literature

  • NPL 1: Akio Ando “Real-time Voice Recognition System”, Institute of Electronics, Information and Communication Engineers, 2003, p. 28-30

SUMMARY OF INVENTION Technical Problem

A problem lies in that, with a method of acquiring biometric information and performing personal authentication, the user needs to perform some kind of action for authentication. For example, in the case of personal authentication using fingerprint or vein, the user's action such as placing his or her finger on a dedicated scanner is necessary. In the case of personal authentication using face or iris, the user's action such as facing a camera is necessary. In the case of personal authentication using voice or bone conducted sound, the user's action such as uttering a password is necessary. The user required to perform such action has a psychological and/or physical burden.

權利要求

1
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