Title:
WIDE DIRECTIVITY PUBLIC ADDRESS SYSTEM
Document Type and Number:
Japanese Patent JPH0787585
Kind Code:
A
Abstract:
PURPOSE: To generate acoustic output in all or specified direction.
CONSTITUTION: A speaker unit 2 is fixed to the frame 1 of a 32-hedron or a sphere by arranging with the same spacing a-a' from a central point (b). This system is supported by a fixed metal hanger 3, and a stand 4, etc.
Inventors:
FUJITA TAKESHI
Application Number:
JP26031593A
Publication Date:
March 31, 1995
Filing Date:
September 13, 1993
Export Citation:
Assignee:
FUJITA TAKESHI
MURATA KENJI
MURATA KENJI
International Classes:
H04R1/40; H04R3/12; H04R27/00; (IPC1-7): H04R1/40; H04R3/12; H04R27/00
Next Patent: SOUND VOLUME CONTROL FOR AUDIO DEVICE FOR AUTOMOBILE