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:
Jun. 09, 2015
Filed:
May. 13, 2011
Michael Nussbaum, Newton, MA (US);
Zoran Coric, Framingham, MA (US);
Christopher J. Perkins, Shrewsbury, MA (US);
Timothy W. Sheen, Brighton, MA (US);
Michael Nussbaum, Newton, MA (US);
Zoran Coric, Framingham, MA (US);
Christopher J. Perkins, Shrewsbury, MA (US);
Timothy W. Sheen, Brighton, MA (US);
Bose Corporation, Framingham, MA (US);
Abstract
An apparatus for driving speakers includes user-configurable amplifier cells for driving selected speakers, a synchronous rectifier circuit, and a control system. Each cell connects between power rails. The rectifier circuit provides current on the rails for consumption by the cells. The current depends on the configuration. The control system implements a model of the rectifier circuit and cells and uses it to control an audio input signal in response to information concerning electrical outputs of the amplifier cells. This indirectly limits current drawn from the synchronous rectifier circuit.