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. 11, 2014
Filed:
Sep. 07, 2012
Stephen D. Boyle, Newton, MA (US);
Kenneth D. Gagnon, Westminster, MA (US);
Jonathan A. Knudsen, Pawtucket, RI (US);
William Tice, Nashua, NH (US);
Kevin J. Winter, Hingham, MA (US);
Stephen D. Boyle, Newton, MA (US);
Kenneth D. Gagnon, Westminster, MA (US);
Jonathan A. Knudsen, Pawtucket, RI (US);
William Tice, Nashua, NH (US);
Kevin J. Winter, Hingham, MA (US);
Bose Corporation, Framingham, MA (US);
Abstract
A plate attached to the back shell of an earphone includes an exit cavity corresponding in dimension to and aligned with a first opening through the back shell. A channel in the bottom surface of the plate begins at a point aligned with a second opening through the back shell and ends at an aperture through a side wall of the exit cavity. The channel and the outer surface of the back shell together form a reactive acoustic port from a back cavity enclosed by the back shell to the exit cavity, the first opening through the shell forms a resistive acoustic port from the back cavity to the exit cavity, and the exit cavity couples the reactive acoustic port and the resistive acoustic port to free space without introducing additional acoustic impedance. In some examples, a water-resistant screen covers the upper aperture of the exit cavity.