公开(公告)号：US10551973B2

公开(公告)日：2020-02-04

申请号：US15554769

申请日：2015-08-12

Applicant: NXP B.V.

Inventor： Jan Paulus Freerk Huijser ,  Deheng Liu ,  Min Li ,  Shawn William Scarlett ,  Jose Manuel Gil-Cacho Lorenzo

IPC: G06F3/043 ,  G06F3/0488 ,  G06F3/01 ,  H04M1/02

Abstract: A method of controlling a mobile device is described, the method comprising: receiving a time varying current or voltage of a signal generated on the terminals of an acoustic transducer of the mobile device, the time varying current or voltage being generated in response to a tapping and/or sliding motion on a surface of the mobile device performed by a user; comparing the time varying signal characteristics with a set of predetermined signal characteristics; and generating at least one user command in dependence of the comparison. The mobile device may reliably detect complex user commands using an acoustic transducer.