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:
Feb. 17, 2004
Filed:
Aug. 31, 1999
Applicant:
Inventor:
Henry Azima, Cambridge, GB;
Assignee:
New Transducers Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/00 ;
U.S. Cl.
CPC ...
H04R 1/00 ;
Abstract
A panel form acoustic member capable of supporting bending wave vibration has the bending wave velocity varied in the region of coincidence to provide a range of coincidence frequencies, for causing the acoustic coupling of the bending waves in the panel to occur over a broader range of angles or for making the coupling more uniform. The member may be incorporated in a loudspeaker having a panel member ( ) and an exciter ( ) fixed to the panel member to excite bending waves in the loudspeaker to cause an acoustic output.