DIRECTIVITY CONTROL SYSTEM AND VOICE OUTPUT CONTROL METHOD

PROBLEM TO BE SOLVED: To prevent deterioration of privacy protection for a person, while preventing the content of a voice uttered by a person from being known by others when the voice is uttered by the person in a privacy protection area.SOLUTION: A motion detector of a camera device CA detects a m...

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Bibliographic Details
Main Authors TOKUDA TADAMICHI, YUSHIMO RYOICHI, MATSUMOTO HIROYUKI, YOSHIKUNI SHINTARO
Format Patent
LanguageEnglish
Japanese
Published 26.01.2017
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Summary:PROBLEM TO BE SOLVED: To prevent deterioration of privacy protection for a person, while preventing the content of a voice uttered by a person from being known by others when the voice is uttered by the person in a privacy protection area.SOLUTION: A motion detector of a camera device CA detects a motion of a person in an imaging area. A signal processor 33 of a directivity control device 30 detects a sound source of a voice in the imaging area which are collected by a microphone array device MA. When the motion of the person is detected by the motion detector and the sound source detected by the signal processor 33 is located within a privacy protection area range, an output controller 35 controls the voice in the imaging area which are collected by the microphone array device MA, and output from a speaker device 37. While the sound pressure collected by the microphone array device MA exceeds a sound pressure threshold value, a beep sound, as an alternative sound, is output from the speaker device 37.SELECTED DRAWING: Figure 1 【課題】プライバシー保護エリア内で人物により音声が発せられても、その人物が発した音声の内容が他人に知られることなく、人物のプライバシー保護の劣化を抑制する。【解決手段】カメラ装置CAの動き検出部は、撮像エリアにおける人物の動きを検出する。指向性制御装置30の信号処理部33は、マイクアレイ装置MAにより収音された撮像エリアの音声の音源を検出する。動き検出部によって人物の動きが検出され、かつ、信号処理部33によって検出された音源がプライバシー保護エリアの範囲内である場合に、出力制御部35は、マイクアレイ装置MAにより収音され、スピーカ装置37から出力される撮像エリアの音声を制御する。マイクアレイ装置MAで収音される音圧が音圧閾値を超えている間、代替音であるピー音がスピーカ装置37から出力される。【選択図】図1
Bibliography:Application Number: JP20150138014