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.

Date of Patent:
Apr. 14, 2015

Filed:

May. 15, 2014
Applicant:

Colorado Energy Research Technologies, Llc, Englewood, CO (US);

Inventors:

Wayne J. Powell, Centennial, CO (US);

Robert D. Boehmer, Centennial, CO (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 29/00 (2006.01); H03G 11/00 (2006.01); H04R 3/00 (2006.01); H02B 1/00 (2006.01); H04R 3/12 (2006.01); H03H 7/38 (2006.01);
U.S. Cl.
CPC ...
H04R 3/12 (2013.01); H03H 7/38 (2013.01);
Abstract

An impedance matched resonant circuit uses inductors coupling an audio source and a speaker array in order to reduce feedback reflection induced by an audio signal traveling from the audio source to the array of speakers. An RC circuit could also be coupled to the positive and negative terminals of the speaker array to reduce the slope differential of the audio signal at certain frequencies. The circuit can be packaged together in a single module with switches to activate and deactivate portions of the circuit to alter the effectiveness of the circuit depending upon need.


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