PERSONAL AUTHENTICATION DEVICE, PERSONAL AUTHENTICATION METHOD, AND RECORDING MEDIUM

Title:

PERSONAL AUTHENTICATION DEVICE, PERSONAL AUTHENTICATION METHOD, AND RECORDING MEDIUM

Document Type and Number:

WIPO Patent Application WO/2018/198310

Kind Code:

A1

Abstract:

Provided are a personal authentication device and the like which are capable of quickly performing accurate authentication even when an earphone/microphone device is inserted in order to wear the earphone/microphone device as a unit, and which are also capable of preventing spoofing after authentication. This personal authentication device: detects contact of an earphone/microphone device with a propagation path such as an external ear canal entrance constituting part of the head of a person to be authenticated; generates a first acoustical signal in an audible range upon detecting said contact; measures an acoustical signal resulting from propagation of the first acoustical signal through the propagation path; determines that first authentication of the person to be authenticated is successful if the measured propagated first acoustical signal satisfies predetermined conditions; generates a second acoustical signal in an inaudible range higher in frequency than said audible range after the first authentication is successful; measures an acoustical signal resulting from propagation of the second acoustical signal through the propagation path; and performs second authentication in which, if the measured propagated second acoustical signal satisfies predetermined conditions, then it is determined that the person who has been subjected to the second acoustical signal is the person to be authenticated, for whom the first authentication is successful, wherein this second authentication is repeated.

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Inventors:

KOSHINAKA TAKAFUMI (JP)
OOSUGI KOUJI (JP)
OSUGI KOHEI (JP)

Application Number:

PCT/JP2017/016914

Publication Date:

November 01, 2018

Filing Date:

April 28, 2017

Export Citation:

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Assignee:

NEC CORP (JP)
NEC PLATFORMS LTD (JP)

International Classes:

G06F21/32; H04L9/32; H04R1/10; H04R3/00

Foreign References:

JP2005032056A	2005-02-03
JP2004054496A	2004-02-19
US20090087003A1	2009-04-02

Attorney, Agent or Firm:

SHIMOSAKA Naoki (JP)

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