Nec Corporation

Nec Platforms, Ltd.

Toyota Jidosha Kabushiki Kaisha

Kouji Oosugi

Takafumi Koshinaka

Kohei Osugi

Hiroki Okada

Ryoji Miyahara

Akihiko Sugiyama

Takayuki Arakawa

Daisuke Hiroki

Ryuta Atsumi

Satoshi Fujisaki

Shinpei Asai

A signal processing device determines whether a relationship between a first signal and a second signal satisfies a first condition, the first signal being based on an output of a first microphone inserted into an ear canal of a user, the second signal being based on an output of a second microphone positioned outside the ear canal. The signal processing device starts processing relating to transmission of a sound signal when it is determined that the first condition is satisfied, and that continues the processing, even after the first condition is not satisfied, during a period in which a second condition that differs from the first condition is satisfied.

Signal processing device, microphone device, signal processing method, and recording medium

Provided are a personal authentication device performing accurate authentication immediately follow insertion an earphone/microphone device to wear, and preventing spoofing after authentication. This device: detects contact of an earphone/microphone device with a propagation path constituting part of the head of a person; 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; determines that first authentication of the person 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; measures an acoustical signal resulting from propagation of the second acoustical signal; and performs second authentication in which, if the measured propagated second acoustical signal satisfies predetermined conditions, then it is determined that the person is the person to be authenticated, for whom the first authentication is successful.

Personal authentication device, personal authentication method, and recording medium

There is provided a voice output apparatus for providing a high-quality sound to an eardrum of a user. The voice output apparatus includes a first voice output unit outputting a voice to an ear canal of a user based on an output voice signal, a first noise acquirer arranged to face outward from a body of the user and captures a mixed voice including first external noise arriving from an outside of the user to output a mixed voice signal, an echo canceler cancelling an influence, on the first external noise, of a leaked voice output from the first voice output unit and leaking to the outside of the user, and a noise canceler generating a first external noise signal corresponding to the first external noise, and processing, using the first external noise signal, an input voice signal input from the outside to generate the output voice signal.

Voice output apparatus, voice output method, and voice output program

By performing both noise cancellation and echo cancellation, a high-quality main voice signal is generated. A voice input/output apparatus includes a noise acquirer that is arranged toward an outside of a body of a user and acquires external noise arriving from the outside of the user, a voice output unit that accepts an input of a voice signal and outputs a voice to an ear canal of the user, a main voice acquirer that acquires a mixed voice, in which the external noise, the output voice, and a main voice of the user transmitted from a vocal cord of the user through the ear canal are mixed, and outputs a mixed voice signal, a noise canceler that processes the mixed voice signal using a noise signal based on the external noise, and an echo canceler that processes the mixed voice signal using the voice signal.

Voice input/output apparatus, hearing aid, voice input/output method, and voice input/output program

An authentication system that executes user authentication processing in accordance with an authentication request includes at least one first device. The first device has a biological information acquiring unit that is configured to acquire biological information of a user, and a first authentication unit that outputs an authentication result of which the user is authenticated, based on the biological information. The authentication system includes a second device that is configured to communicate with the first device. The second device has an information acquiring-storing unit that is able to store identification information of the first device beforehand, a determination unit that is configured to determine whether the first device is registered, and a second authentication unit that is configured to perform user authentication, in accordance with an authentication result output by the first authentication unit, when the determination unit determines that the first device is registered.

Authentication system and authentication device

The accuracy of ear authentication is ensured over a range from an audible range to a non-audible range. An earphone includes a sound emitting unit, a sound collecting unit, a housing containing the sound emitting unit and the sound collecting unit, a sound hole formed inside the housing, the sound hole being configured to propagate an emitted sound to a predetermined direction and propagate a sound coming from the predetermined direction to the sound collecting unit, and an ear pad covering at least a part of the sound hole, in which an ear-pad side end face is configured so as not to project beyond a sound-hole side end face at least in the predetermined direction, the ear-pad side end face being an end face of the ear pad, the sound-hole side end face being an end face of the sound hole in the predetermined direction.

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Tokyo, Japan

Kouji Oosugi