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. 06, 2023
Filed:
Feb. 19, 2021
Applicant:
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Inventors:
Assignee:
Toyota Motor Engineering & Manutacturing North America, Inc., Plano, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/28 (2006.01); H04R 3/00 (2006.01);
U.S. Cl.
CPC ...
H04R 1/288 (2013.01); H04R 3/00 (2013.01);
Abstract
A system can improve the performance of an electroacoustic absorber. The system includes a loudspeaker and an absorber operatively positioned relative to the loudspeaker. The absorber can be configured to absorb sound waves. A control circuit can be operatively connected to the loudspeaker. The control circuit can be configured to tune the resonance of the loudspeaker and therefore cause one or more acoustic characteristics, such as acoustic impedance, of the loudspeaker to be adjusted.