High-fidelity earpiece with adjustable frequency response

Details High-fidelity earpiece with adjustable frequency response High-fidelity earpiece with adjustable frequency response

2005-11-23

2009-12-15

Ensey, Brian (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Plural or compound reproducers

C381S328000, C381S417000, C381S418000

Reexamination Certificate

active

07634099

ABSTRACT:
An earpiece is provided that includes an earpiece enclosure, a sound delivery member that contains a sound delivery tube, and one or more drivers. The earpiece enclosure includes one or more enclosure ports that couple the internal enclosure volume to the volume outside of the earpiece. Corresponding to each enclosure port is a port cover that has at least a fully open port position and a fully closed port position. Preferably the port cover is capable of multiple positions between the fully open port position and the fully closed port position. The port cover can be a plug, a rotating earpiece collar, a sliding cover, etc. In at least one embodiment, separate drivers and/or separate volumes within the earpiece enclosure are coupled to separate enclosure ports.

REFERENCES:
patent: 2390794 (1945-12-01), Knight
patent: 2430229 (1947-11-01), Kelsey
patent: 3871372 (1975-03-01), Bivins
patent: 5068901 (1991-11-01), Carlson
patent: 5332871 (1994-07-01), Carrigan
patent: 5949896 (1999-09-01), Nageno et al.
patent: 6072885 (2000-06-01), Stockham et al.

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