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:
Aug. 01, 2006
Filed:
Jun. 13, 2005
Applicant:
Joel Butler, Springfield, MO (US);
Inventor:
Joel Butler, Springfield, MO (US);
Assignee:
SLS International, Inc., Ozark, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A sigma-delta modulated amplifier is disclosed that is operable to sum an input signal and a feedback signal, integrate the summed signal, asynchronously quantize the integrated signal, sample the quantized signal utilizing a pseudo-random osculating signal, and amplify the sampled signal. The amplifier enables discrete implementation of a low-cost, spread spectrum controlled, sigma delta modulated audio amplifier for spectrally pure, high efficiency, low EMI, audio power amplification.