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. 11, 2024
Filed:
Jul. 12, 2019
Applicant:
Blueprint Acoustics Pty Ltd, Victoria, AU;
Inventor:
Zeljko Velican, Victoria, AU;
Assignee:
BLUEPRINT ACOUSTICS PTY LTD, Victoria, AU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 1/28 (2006.01); H04R 1/24 (2006.01); H04R 3/14 (2006.01);
U.S. Cl.
CPC ...
H04R 1/2869 (2013.01); H04R 1/24 (2013.01); H04R 1/2849 (2013.01); H04R 3/14 (2013.01);
Abstract
An acoustic filter suitable for an electro-acoustic transducer includes a relatively high frequency driver and a relatively low frequency driver situated on a common axis. The acoustic filter includes a baffle body having an outer side and an inner side, such that the outer side serves as a baffle for the high frequency driver. The inner side forms a first wall of a Helmholtz resonator including a chamber and a vent duct communicating with the chamber.