Speaker device

Details Speaker device Speaker device

2009-09-03

2010-11-23

Kuntz, Curtis (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having acoustic wave modifying structure

C381S111000

Reexamination Certificate

active

07840022

ABSTRACT:
A speaker device includes a cabinet, a speaker unit, a port, a cartridge, and an adsorbent material. The adsorbent material is disposed in the interior of the cartridge. The cartridge is a container removable from the cabinet. When the adsorbent material is deteriorated, the cartridge is replaced or the adsorbent material is reactivated, thereby making it possible to maintain, over a long period of time, the effect of physical adsorption provided by the adsorbent material.

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Supplementary European Search Report issued Feb. 19, 2009 in the corresponding European application.

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