The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 1989
Filed:
Jul. 10, 1987
Applicant:
Inventor:
Manabu Kawachi, Tokyo, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R / ; H04R / ;
U.S. Cl.
CPC ...
381186 ; 381 86 ; 381 87 ; 381 90 ; 381182 ; 381188 ;
Abstract
A compound speaker system comprising a woofer, a squawker, a tweeter, and a super tweeter. The squawker, the tweeter, and the super tweeter are attached to a plate and the assembly is rotatably positioned within the cone of the woofer. Since the squawker, the tweeter, and the super tweeter are positioned at different distances from the axis of the assembly rotation, it is possible to design the system such that the speaker which reproduces relatively directional sound, such the tweeter or the super tweeter takes an elevated position as compared to the squawker when the assembly is rotated within the woofer cone.