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Title:
VOICE INPUT DEVICE, ITS MANUFACTURING METHOD AND INFORMATION PROCESSING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2008/062848
Kind Code:
A1
Abstract:
A voice input device includes a first microphone (710-1) with a first vibrating membrane, a second microphone (710-2) with a second vibrating membrane, and a difference signal generating unit (720) that generates a difference signal between first and second voltage signals. The first and second vibrating membranes are disposed to make a noise intensity ration smaller than an input voice intensity ratio indicative of a ratio of the intensity of input voice components. The difference signal generating unit (720) includes a gain unit (760) that gives a predetermined gain to the first voltage signal and a difference signal output unit (740) that generates a difference signal between the first voltage signal to which the gain unit gives the predetermined gain and the second voltage signal and that outputs the difference signal.

Inventors:
TAKANO, Rikuo (1-1 Minamiwatarida-cho, Kawasaki-ku, Kawasaki-sh, Kanagawa 55, 2100855, JP)
高野 陸男 (〒55 神奈川県川崎市川崎区南渡田町1-1 株式会社船井電機新応用技術研究所内 Kanagawa, 2100855, JP)
SUGIYAMA, Kiyoshi (7-3-27, Mure Mitaka-sh, Tokyo 02, 1810002, JP)
杉山 精 (〒02 東京都三鷹市牟礼7-3-27 Tokyo, 1810002, JP)
FUKUOKA, Toshimi (Kibogaoka Dai-2 Koporasu C-119, 144-1 Nakakibogaoka, Asahi-ku, Yokohama-sh, Kanagawa 25, 2410825, JP)
福岡 敏美 (〒25 神奈川県横浜市旭区中希望が丘144-1 希望が丘第2コーポラス C-119 Kanagawa, 2410825, JP)
ONO, Masatoshi (1280, Uenomuro Tsukuba-sh, Ibaraki 23, 3050023, JP)
小野 雅敏 (〒23 茨城県つくば市上ノ室1280 Ibaraki, 3050023, JP)
HORIBE, Ryusuke (7-1, Nakagaito 7-chom, Daito-shi Osaka 13, 5740013, JP)
Application Number:
JP2007/072591
Publication Date:
May 29, 2008
Filing Date:
November 21, 2007
Export Citation:
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Assignee:
FUNAI ELECTRIC ADVANCED APPLIED TECHNOLOGY RESEARCH INSTITUTE INC. (1-1 Minamiwatarida-cho, Kawasaki-ku Kawasaki-sh, Kanagawa 55, 2100855, JP)
株式会社船井電機新応用技術研究所 (〒55 神奈川県川崎市川崎区南渡田町1-1 Kanagawa, 2100855, JP)
FUNAI ELECTRIC CO., LTD. (7-1 Nakagaito 7-chome, Daito-shi Osaka, 13, 5740013, JP)
船井電機株式会社 (〒13 大阪府大東市中垣内7丁目7番1号 Osaka, 5740013, JP)
TAKANO, Rikuo (1-1 Minamiwatarida-cho, Kawasaki-ku, Kawasaki-sh, Kanagawa 55, 2100855, JP)
高野 陸男 (〒55 神奈川県川崎市川崎区南渡田町1-1 株式会社船井電機新応用技術研究所内 Kanagawa, 2100855, JP)
SUGIYAMA, Kiyoshi (7-3-27, Mure Mitaka-sh, Tokyo 02, 1810002, JP)
杉山 精 (〒02 東京都三鷹市牟礼7-3-27 Tokyo, 1810002, JP)
FUKUOKA, Toshimi (Kibogaoka Dai-2 Koporasu C-119, 144-1 Nakakibogaoka, Asahi-ku, Yokohama-sh, Kanagawa 25, 2410825, JP)
福岡 敏美 (〒25 神奈川県横浜市旭区中希望が丘144-1 希望が丘第2コーポラス C-119 Kanagawa, 2410825, JP)
ONO, Masatoshi (1280, Uenomuro Tsukuba-sh, Ibaraki 23, 3050023, JP)
International Classes:
H04R3/00; H04R1/40; H04R31/00
Foreign References:
JP2005217749A
JPH09331377A
JPH06269083A
JP2004173053A
JP2003333683A
JPH05216495A
JP2005203944A
JP2006174136A
JP2002084590A
JPH07312638A
JP2001186241A
JPH07312638A
JPH09331377A
JP2001186241A
Other References:
See also references of EP 2101513A4
Attorney, Agent or Firm:
FUSE, Yukio (2nd Floor, Ogikubo TM Bldg.26-13, Ogikubo 5-chome, Suginami-ku, Tokyo 51, 1670051, JP)
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