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    SPEAKER DEVICE
    3.
    发明公开
    SPEAKER DEVICE 审中-公开

    公开(公告)号：EP4436210A1

    公开(公告)日：2024-09-25

    申请号：EP23163803.2

    申请日：2023-03-23

    申请人： Infineon Technologies AG

    发明人： BRETTHAUER, Christian

    IPC分类号： H04R17/00 ,  H04R19/00 ,  H04R19/02

    CPC分类号： H04R17/00 ,  H04R2217/0320130101 ,  H04R19/005 ,  H04R2201/00320130101 ,  H04R19/02 ,  G10K15/04

    摘要： A speaker device (100) and a multi-way speaker device (90) are presented. The speaker device (100) comprises a housing (10) having an acoustic aperture (12), a transducer element (20) in the housing (10) configured to receive a first actuation signal (S1) and to generate an acoustic output signal (SOUT) in response to the first actuation signal (S1). The speaker device comprises a shutter element (30) in the housing (10) configured to receive a second actuation signal (S2), wherein the shutter element (30) is arranged laterally offset to the transducer element (20) in the housing (10), and wherein the shutter element (30) is arranged in an acoustic path (32) between the transducer element (20) and the acoustic aperture (12) and comprises a movable shutter portion (34), which is movable in opposite directions in response to the second actuation signal (S2). The speaker device (100) further comprises a controller (40) configured to provide the first actuation signal (S1) to the transducer element (20), wherein the first actuation signal (S1) has an ultrasonic signal component which is modulated with an audio signal component, and to provide the second actuation signal (S2) to the shutter element (30), wherein the second actuation signal (S2) has half the frequency of the ultrasonic signal component.