公开(公告)号：US10708684B2

公开(公告)日：2020-07-07

申请号：US16342388

申请日：2017-03-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhengbin Sun ,  Yanhui Ren ,  Ligang Yu ,  Haibo Shan ,  Meimei Han

IPC: H04R1/28 ,  H04R1/02 ,  H04R1/10 ,  H04R9/02 ,  H04R9/06

Abstract: Embodiments of the present invention disclose an audio play apparatus and a device. The audio play apparatus includes a loudspeaker, a loudspeaker container, and a cavity expansion material, where the loudspeaker and the cavity expansion material are disposed in the loudspeaker container, the cavity expansion material is a fabric made of fibers with irregular holes on a surface, and holes are formed between fibers of the fabric. The fabric made of the fibers with the irregular holes on the surface is disposed in the audio play apparatus. In this way, when the audio play apparatus plays audio, by using gaps between the fibers of the fabric and the irregular holes on the surface of the fibers, a resonance frequency f0 of the audio play apparatus is reduced, and a frequency band width is increased.

公开(公告)号：US20190238973A1

公开(公告)日：2019-08-01

申请号：US16342388

申请日：2017-03-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhengbin Sun ,  Yanhui Ren ,  Ligang Yu ,  Haibo Shan ,  Meimei Han

IPC: H04R1/28 ,  H04R1/02 ,  H04R1/10

Abstract: Embodiments of the present invention disclose an audio play apparatus and a device. The audio play apparatus includes a loudspeaker, a loudspeaker container, and a cavity expansion material, where the loudspeaker and the cavity expansion material are disposed in the loudspeaker container, the cavity expansion material is a fabric made of fibers with irregular holes on a surface, and holes are formed between fibers of the fabric. The fabric made of the fibers with the irregular holes on the surface is disposed in the audio play apparatus. In this way, when the audio play apparatus plays audio, by using gaps between the fibers of the fabric and the irregular holes on the surface of the fibers, a resonance frequency f0 of the audio play apparatus is reduced, and a frequency band width is increased.

公开(公告)号：US10063198B2

公开(公告)日：2018-08-28

申请号：US15555349

申请日：2015-03-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fang-Ching Lee ,  Yanhui Ren ,  Fushun Chen

IPC: H03F3/217 ,  H04R29/00 ,  H03F3/68

CPC classification number: H03F3/2175 ,  H03F3/185 ,  H03F3/68 ,  H03F2200/03 ,  H04Q3/00 ,  H04R3/12 ,  H04R5/04 ,  H04R29/00 ,  H04R2420/03 ,  H04R2420/05 ,  H04R2420/09

Abstract: A terminal device includes: an access unit, connected between a headset or an audio speaker and a digital-to-analog converter, and configured for insertion of a detachable second power amplifier; a processor, configured to: detect whether the second power amplifier is inserted into the access unit, output a first digital signal when detecting that the second power amplifier is inserted, and output a second digital signal when detecting that the second power amplifier is not inserted; the digital-to-analog converter, connected to the processor, and configured to: when receiving the first digital signal, convert the first digital signal to a first analog signal, and send the first analog signal to the second power amplifier; and when receiving the second digital signal, convert the second digital signal to a second analog signal, and send the second analog signal to a first power amplifier.