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:
Mar. 27, 2018
Filed:
Jan. 09, 2015
Applicant:
Harman Becker Gepkocsirendszer Gyarto Korlatolt Felelossegu Tarsasag, Szekesfehervar, HU;
Inventors:
John B. French, Caledon East, CA;
David Russell, Toronto, CA;
Assignee:
Harman Becker Gepkocsirendszer Gyarto Korlatoll Felelossegu Tarsasag, Szekesfehervar, HU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01); H03F 3/183 (2006.01); H04R 9/04 (2006.01); H03F 3/217 (2006.01); H04R 9/06 (2006.01); H04R 9/02 (2006.01);
U.S. Cl.
CPC ...
H04R 3/00 (2013.01); H03F 3/183 (2013.01); H03F 3/217 (2013.01); H04R 9/025 (2013.01); H04R 9/04 (2013.01); H04R 9/06 (2013.01);
Abstract
The disclosure generally relates to acoustic transducers with stationary and moving coils, and methods for operating the acoustic transducers. Time varying signals are applied to the moving and stationary coils to control the movement of a diaphragm, which produces sound. The time varying signals are derived from a composite signal that is provided, via a pair of conductors, to the acoustic transducer. The time varying signals are derived based on various filter methods.