Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ACOUSTIC SYSTEM
Document Type and Number:
WIPO Patent Application WO/1997/038553
Kind Code:
A1
Abstract:
A microphone having a substantially spherical structure (1). A first microphone element (2a) is provided at the left end portion of the structure (1) and has a directivity in at least two directions; and a second microphone element (2b) is provided at the right end portion of the structure (1) and has a directivity in at least two directions.

Inventors:
ISHIWATA HITOSHI (JP)
Application Number:
PCT/JP1996/000939
Publication Date:
October 16, 1997
Filing Date:
April 05, 1996
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
CITY PROMOTION NETWORK CO LTD (JP)
ISHIWATA HITOSHI (JP)
International Classes:
H04R5/027; (IPC1-7): H04R5/027
Foreign References:
JPS5843959B21983-09-30
JPS5289001U1977-07-02
JPS53140002A1978-12-06
Download PDF:



 
Previous Patent: ACOUSTIC FEEDBACK CORRECTION

Next Patent: FLUID HEATER