Bose Corporation

Kevin J Winter

Stephen D Boyle

Kenneth D Gagnon

Edwin C Johnson, Jr

William W Tice

Jonathan A Knudsen

Jr Edwin C Johnson

Provided is a microphone compatibility device comprising a sensor that detects a voltage along a conductive path between a microphone and at least one electronic device and a current control device that draws current for permitting microphone detection by each of a first electronic device and a second electronic device. The second electronic device has a lower current draw requirement than the first electronic device.

Microphone compatibility

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.

Combining and waterproofing headphone port exits

Growing community of inventors

Hingham, MA, United States of America

Kevin J Winter