摘要 |
<p>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 delay section (730), and a differential signal output section (740) that generates and outputs a differential signal based on a signal delayed by the delay section.</p> |
申请人 |
FUNAI ELECTRIC ADVANCED APPLIED TECHNOLOGY RESEARCH INSTITUTE INC.;FUNAI ELECTRIC CO., LTD. |
发明人 |
TAKANO, RIKUO;SUGIYAMA, KIYOSHI;FUKUOKA, TOSHIMI;ONO, MASATOSHI;HORIBE, RYUSUKE;TANAKA, FUMINORI;MAEDA, SHIGEO;INODA, TAKESHI;CHOJI, HIDEKI |