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Hiroshi Okuno
Hiroshi Okuno, Wako-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100011939 | ROBOT - A robot includes: a sound collecting unit collecting and converting a musical sound into a musical acoustic signal; a voice signal generating unit generating a self-vocalized voice signal; a sound outputting unit converting the self-vocalized voice signal into a sound and outputting the sound; a self-vocalized voice regulating unit receiving the musical acoustic signal and the self-vocalized voice signal; a filtering unit performing a filtering process; a beat interval reliability calculating unit performing a time-frequency pattern matching process and calculating a beat interval reliability; a beat interval estimating unit estimating a beat interval; a beat time reliability calculating unit calculating a beat time reliability; a beat time estimating unit estimating a beat time on the basis of the calculated beat time reliability; a beat time predicting unit predicting a beat time before the current time; and a synchronization unit synchronizing the self-vocalized voice signal. | 01-21-2010 |
| 20100191530 | SPEECH UNDERSTANDING APPARATUS - A speech understanding apparatus includes a speech recognition unit which performs speech recognition of an utterance using multiple language models, and outputs multiple speech recognition results obtained by the speech recognition, a language understanding unit which uses multiple language understanding models to perform language understanding for each of the multiple speech recognition results output from the speech recognition unit, and outputs multiple speech understanding results obtained from the language understanding, and an integrating unit which calculates, based on values representing features of the speech understanding results, utterance batch confidences that numerically express accuracy of the speech understanding results for each of the multiple speech understanding results output from the language understanding unit, and selects one of the speech understanding results with a highest utterance batch confidence among the calculated utterance batch confidences. | 07-29-2010 |
Hiroshi Okuno, Saitama JP
| Patent application number | Description | Published |
|---|---|---|
| 20090018828 | Automatic Speech Recognition System - An automatic speech recognition system includes: a sound source localization module for localizing a sound direction of a speaker based on the acoustic signals detected by the plurality of microphones; a sound source separation module for separating a speech signal of the speaker from the acoustic signals according to the sound direction; an acoustic model memory which stores direction-dependent acoustic models that are adjusted to a plurality of directions at intervals; an acoustic model composition module which composes an acoustic model adjusted to the sound direction, which is localized by the sound source localization module, based on the direction-dependent acoustic models, the acoustic model composition module storing the acoustic model in the acoustic model memory; and a speech recognition module which recognizes the features extracted by a feature extractor as character information using the acoustic model composed by the acoustic model composition module. | 01-15-2009 |
| 20100189271 | Audio Source Detection System - In a sound source localization system using a light emitting device for visualizing sound information, including: a light emitting device ( | 07-29-2010 |
Hiroshi Okuno, Kyoto-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090043588 | SOUND-SOURCE SEPARATION SYSTEM - A system capable of reducing the influence of sound reverberation or reflection to improve sound-source separation accuracy. An original signal X(ω,f) is separated from an observed signal Y(ω,f) according to a first model and a second model to extract an unknown signal E(ω,f). According to the first model, the original signal X(ω,f) of the current frame f is represented as a combined signal of known signals S(ω,f−m+1) (m=1 to M) that span a certain number M of current and previous frames. This enables extraction of the unknown signal E(ω,f) without changing the window length while reducing the influence of reverberation or reflection of the known signal S(ω,f) on the observed signal Y(ω,f). | 02-12-2009 |
Hiroshi Okuno, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20090030552 | Robotics visual and auditory system - It is a robotics visual and auditory system provided with an auditory module ( | 01-29-2009 |
Hiroshi Okuno, Osaka JP
| Patent application number | Description | Published |
|---|---|---|
| 20110164760 | SOUND SOURCE TRACKING DEVICE - The sound source tracking device of the present invention comprises a plurality of differential microphones having bidirectionality, and a support member adapted to support the plurality of differential microphones such that the plurality of differential microphones are disposed in an array within a given plane. The plurality of differential microphones are supported on the support member such that their principal axes of directionality are approximately orthogonal to the given plane. | 07-07-2011 |