Title:
SOUND COLLECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2008/018362
Kind Code:
A1
Abstract:
An A/D converter sets a sound collection signal to a low sensitivity and inputs
it into a sound collection beam generation unit.The A/D converter sets the sound
collection signal to a high sensitivity and inputs it into the sound collection
beam generation unit. A sound detector judges whether sound is present or absent
according to the sound collection beam so as to judge whether a clip is present
or absent. A control unit inputs the judgments result of the sound detector.
When a high-level sound collection beam signal is clipped, an encoder is set
so that a low-level sound beam signal is outputted outside.
Inventors:
HOMMA, Shigeru (())
Application Number:
JP2007/065173
Publication Date:
February 14, 2008
Filing Date:
August 02, 2007
Export Citation:
Assignee:
YAMAHA CORPORATION (10-1, Nakazawa-cho Naka-ku, Hamamatsu-sh, Shizuoka 50, 4308650, JP)
ヤマハ株式会社 (〒50 静岡県浜松市中区中沢町１０番１号 Shizuoka, 4308650, JP)
ヤマハ株式会社 (〒50 静岡県浜松市中区中沢町１０番１号 Shizuoka, 4308650, JP)
International Classes:
H04R3/00; G10L21/02; H04R1/40
Attorney, Agent or Firm:
YAZAWA, Kiyozumi (Eikoh Patent Office, 7-13 Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 1050003, JP)