公开(公告)号：US20240073589A1

公开(公告)日：2024-02-29

申请号：US18085370

申请日：2022-12-20

申请人： Meta Platforms Technologies, LLC

发明人： Rex Pinegar Price ,  Alan Ng ,  Calvin Bernard Shaw ,  Peter Mikael Mogren ,  Caroline Whelan ,  Trang Fisher ,  MohanRaj Manoharan

IPC分类号： H04R1/28 ,  H04R1/02 ,  H04R1/10 ,  H04R1/22 ,  H04R9/02 ,  H04R9/06

CPC分类号： H04R1/2826 ,  H04R1/028 ,  H04R1/1008 ,  H04R1/1075 ,  H04R1/227 ,  H04R9/025 ,  H04R9/06 ,  H04R2499/15

摘要： An audio device includes a first speaker and a second speaker. A front surface of a membrane of the second speaker faces a rear surface of a membrane of the first speaker. The membrane of the first speaker moves in an opposite direction than the membrane of the second speaker when the audio device outputs audio content. This configuration maintains isobaric pressure for a back volume shared between the first speaker and the second speaker, reducing vibration of the audio device when outputting audio content.

公开(公告)号：US12069426B1

公开(公告)日：2024-08-20

申请号：US17738971

申请日：2022-05-06

申请人： META PLATFORMS TECHNOLOGIES, LLC

发明人： Chuming Zhao ,  Morteza Khaleghimeybodi ,  Nils Thomas Fritiof Lunner ,  Calvin Bernard Shaw ,  Yun Zhou ,  Xiaochu Yao

IPC分类号： H04R1/28 ,  H04R1/02 ,  H04R1/10

CPC分类号： H04R1/2826 ,  H04R1/028 ,  H04R1/1008 ,  H04R2499/15

摘要： An audio system includes a speaker having a transducer, where the speaker is positioned within an enclosure that forms a front volume and a rear volume on opposite sides of the transducer. The rear part of the enclosure defining the rear volume is formed of an acoustic metamaterial that defines a plurality of channels within the rear volume, where the number and dimensions of the channels is configured to virtual increase the rear volume to amplify a bass portion of sound produced by the speaker. In addition, the channels may be configured to match an impedance of the front volume to serve as an absorber for high frequency audio.