Title:
ACTIVE COUPLER
Document Type and Number:
Japanese Patent JPS5411716
Kind Code:
A
Abstract:
PURPOSE: To improve sound pressure characteristics with a simple constitution by cushioning and holding a cylindrical stationary vitrator provided with sound pressure damping members on its inside wall, by way of elastic O-rings, etc.
Inventors:
SUZUKI AKIRA
Application Number:
JP7619677A
Publication Date:
January 29, 1979
Filing Date:
June 28, 1977
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
H04R17/00; G10K11/00; H04R29/00; (IPC1-7): H04R17/00; H04R29/00
Domestic Patent References:
| JP42001205A | ||||
| JPS366515Y1 |