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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

  • 102 acoustic signal observation means
  • 103 acoustic property calculation means
  • 104 feature extraction means
  • 105 user identification means
  • 106 feature value storage means
  • 201, 202, 203 noise/device property removal means
  • 301 bone conduction signal transmission means
  • 302 bone conduction signal observation means
  • 401 noise signal estimation means
  • 402 transmission acoustic signal selection means
  • 701 acoustic signal transmission means
  • 702 acoustic signal observation means
  • 703 acoustic property calculation means
  • 704 user identification means

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