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:
Dec. 29, 2009
Filed:
Jan. 06, 2005
Henry Azima, Huntingdon, GB;
Neil Geoffrey Harris, Huntingdon, GB;
Denis Morecroft, Huntingdon, GB;
Mark Starnes, Huntingdon, GB;
Martin Colloms, Huntingdon, GB;
Paul Burton, Huntingdon, GB;
Henry Azima, Huntingdon, GB;
Neil Geoffrey Harris, Huntingdon, GB;
Denis Morecroft, Huntingdon, GB;
Mark Starnes, Huntingdon, GB;
Martin Colloms, Huntingdon, GB;
Paul Burton, Huntingdon, GB;
New Transducers Limited, Huntingdon Cambridgeshire, GB;
Abstract
From one aspect, the invention is a method of making a bending wave panel loudspeaker, comprising rigidly coupling a lever to a panel edge or marginal portion such that the lever extends at an angle to the plane of the panel, coupling a bending wave exciter to the lever whereby bending wave energy is coupled to the panel to produce an acoustic output when the exciter is fed with a signal and supporting the panel on a suspension positioned outboard of the lever. From another aspect the invention is a bending wave panel-form loudspeaker having a lever rigidly coupled to a marginal portion or edge of the panel, a vibration exciter coupled to the lever to apply bending wave energy to the panel to produce an acoustic output and a panel suspension positioned outboard of the lever. From a further aspect, the invention is a small electronic device, e.g. a mobile telephone or PDA, having a display screen, and a transparent protective cover over the display screen, wherein the transparent protective cover is a loudspeaker as described above.