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US 5,181,252 AGranted
High compliance headphone driving
AssigneeBose Corporation
InventorsRoman Sapiejewski, John J. Breen
Life of this patent
Estimating the term…
Abstract
An active noise reducing headset has a high compliance diaphragm. Structure limits the maximum excursion of the diaphragm so that the voice coil does not escape the air gap. Structure, such as indentations in the diaphragm, prevent unrecoverable diaphragm collapse.
Claims6
A headset comprising:
- at least one earcup having a front cavity and rear cavity with front cavity and rear cavity compliances respectively,
- a baffle separating the front and rear cavities,
- a high compliance driver with a driver compliance that is greater than said rear cavity compliance having a diaphragm joined to a voice coil normally residing in a gap mounted on the baffle, and
- an active noise reduction system coupled to said driver.
1 more element
Dependencies are inferred from the claim text.