发明授权
US08731693B2 Voice input device, method of producing the same, and information processing system
有权
语音输入装置，其制造方法以及信息处理系统
- 专利标题： Voice input device, method of producing the same, and information processing system
- 专利标题（中）： 语音输入装置，其制造方法以及信息处理系统
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申请号： US12516004申请日： 2007-11-21
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公开(公告)号： US08731693B2公开(公告)日： 2014-05-20
- 发明人: Rikuo Takano , Kiyoshi Sugiyama , Toshimi Fukuoka , Masatoshi Ono , Ryusuke Horibe , Shigeo Maeda , Fuminori Tanaka , Takeshi Inoda , Hideki Choji
- 申请人： Rikuo Takano , Kiyoshi Sugiyama , Toshimi Fukuoka , Masatoshi Ono , Ryusuke Horibe , Shigeo Maeda , Fuminori Tanaka , Takeshi Inoda , Hideki Choji
- 申请人地址： JP Daito-shi JP Daito-shi
- 专利权人： Funai Electric Advanced Applied Technology Research Institute Inc.,Funai Electric Co., Ltd.
- 当前专利权人： Funai Electric Advanced Applied Technology Research Institute Inc.,Funai Electric Co., Ltd.
- 当前专利权人地址： JP Daito-shi JP Daito-shi
- 代理机构： Crowell & Moring LLP
- 优先权： JP2006-315882 20061122; JP2007-299725 20071119
- 国际申请： PCT/JP2007/072591 WO 20071121
- 国际公布： WO2008/062848 WO 20080529
- 主分类号： H04B15/00
- IPC分类号： H04B15/00 ; G06F17/00
摘要：
A voice input device includes a first microphone (710-1) that includes a first diaphragm, a second microphone (710-2) that includes a second diaphragm, and a differential signal generation section (720) that generates a differential signal that indicates a difference between a first voltage signal and a second voltage signal, the first diaphragm and the second diaphragm being disposed so that a noise intensity ratio is smaller than an input voice intensity ratio (input voice component intensity ratio), and the differential signal generation section (720) including a gain section (760) that amplifies the first voltage signal by a predetermined gain, and a differential signal output section (740) that generates and outputs a differential signal that indicates a difference between the first voltage signal amplified by the gain section and the second voltage signal.