Patent Application

App. No. 11/995,373

Abstract

Claims (10)

1 . An adapter ( 3 , 3 ′, 3 ″) for a loudspeaker ( 2 ), which loudspeaker ( 2 ) is provided to be used in the free space, the adapter ( 3 , 3 ′, 3 ″) comprising means providing an acoustic impedance on the backside (b) of the loudspeaker ( 2 ) in such a way, that an adaptation of the loudspeaker function from a free space operation mode to an on-the-ear or in-the-ear operation mode is achieved.

2 . An adapter ( 3 , 3 ′, 3 ″) as claimed in claim 1 , wherein the means providing an acoustic impedance are arranged opposite a sound emanating side of the loudspeaker ( 2 ) in a mounted position of the adapter ( 3 , 3 ′, 3 ″).

3 . An adapter ( 3 , 3 ′, 3 ″) as claimed in claim 1 , wherein the means providing an acoustic impedance comprise means providing acoustic friction.

4 . An adapter ( 3 , 3 ′, 3 ″) as claimed in claim 1 , wherein the means providing an acoustic impedance comprise a bass tube ( 11 ) and/or openings ( 21 ), wherein each opening ( 21 ) constitutes acoustic friction.

5 . An adapter ( 3 , 3 ′, 3 ″) as claimed in claim 4 , wherein the bass tube ( 11 ) and/or the openings ( 21 ) are provided to connect a back volume (b′) of the loudspeaker ( 2 ) and the free space (d).

6 . An adapter ( 3 , 3 ′, 3 ″) as claimed in claim 1 , which comprises means ( 22 ) for mounting the loudspeaker ( 2 ) in a device.

7 . An adapter ( 3 , 3 ′, 3 ″) as claimed in claim 6 , which comprises means ( 22 ) for mounting the loudspeaker ( 2 ) in a headphone ( 1 , 1 ′, 1 ″).

8 . A loudspeaker ( 2 ) with an adapter ( 3 , 3 ′, 3 ″) as claimed in any one of the claims 1 to 7 .

9 . A device with an loudspeaker ( 2 ) as claimed in claim 8 .

10 . A device as claimed in claim 9 , wherein the device is a headphone ( 1 , 1 ′, 1 ″).

Assignments (12)