公开(公告)号：US20170287291A1

公开(公告)日：2017-10-05

申请号：US15252829

申请日：2016-08-31

Applicant: Apple Inc.

Inventor： Xuefeng WANG ,  SungChang LEE ,  Wei Guang WU ,  Yuanyuan SONG

IPC: G08B6/00 ,  H04M1/02

CPC classification number: G08B6/00 ,  H04M1/026 ,  H04W88/02

Abstract: An electronic device may include a device housing, a haptic actuator carried by the device housing, and an audio input transducer carried by the device housing. The electronic device may also include a controller coupled to the audio input transducer and the haptic actuator. The controller may be capable of determining a sound level of the haptic actuator, attempting to drive the haptic actuator to operate within a desired sound level range, and when unable to drive the haptic actuator within the desired sound level range, then generating a warning indication.