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1. 发明授权

US09351068B2 Obstructed port audio signal alteration 有权
标题翻译：阻塞端口音频信号改变
公开(公告)号：US09351068B2
公开(公告)日：2016-05-24
申请号：US13918010
申请日：2013-06-14
申请人： Research In Motion Limited
发明人： Jason Lance Slupeiks , Nathan Robert Webster , Sidi El Becaye Maiga
IPC分类号： H04R29/00 , H04R3/00 , H04R5/04
CPC分类号： H04R3/00 , H04R5/04 , H04R2430/01 , H04R2499/11
摘要： A portable electronic device has an acoustic port having an aperture in a housing having a speaker and pressure sensing transducer incorporated therein. During normal use of the portable electronic device, the aperture of the acoustic port may become obstructed during handling, holstering or surface placement, resulting in reduced sound quality and a waste of energy from a battery powering the device. The pressure sensing transducer detects an obstruction of the acoustic port by detecting an increase in acoustic pressure within the housing or within an acoustic chamber coupling the aperture of the acoustic port to the speaker. In response, acoustic characteristics of the obstructed port speaker's audio are altered to conserve power or enhance audio. Furthermore, acoustic characteristics of speakers of unobstructed acoustic port apertures of the device may also be altered in response to detection of the obstruction.
摘要翻译：一种便携式电子设备具有在壳体中具有孔的声学口，其具有并入其中的扬声器和压力感测换能器。在便携式电子设备的正常使用期间，在处理，静置或表面放置期间，声学端口的孔可能被阻塞，导致降低的声音质量和来自为设备供电的电池的能量的浪费。压力感测传感器通过检测壳体内的声压的增加或将声学孔的孔耦合到扬声器的声学室中来检测声学孔的阻塞。作为响应，阻塞端口扬声器的音频的声学特性被改变以节省功率或增强音频。此外，装置的无阻碍声孔的扬声器的声学特性也可以响应于障碍物的检测而改变。

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