PIEZOELECTRIC BONE CONDUCTION RECEIVER AND PORTABLE ELECTRONIC DEVICE

摘要

A piezoelectric bone conduction receiver and a portable electronic device. The piezoelectric bone conduction receiver comprises: a piezoelectric bone conduction receiver driving unit serving as an acoustic vibration element and a piezoelectric driving and signal processing circuit connected to the piezoelectric bone conduction receiver driving unit, and also comprises a driving signal switching module. The piezoelectric bone conduction receiver driving unit at least comprises two piezoelectric bone conduction receiver driving modules which can independently perform driving. The piezoelectric bone conduction receiver driving modules are separately connected to the driving signal switching module. The driving signal switching module is connected to the piezoelectric driving and signal processing circuit. The driving signal switching module is used for controlling phases of piezoelectric driving signals output by the piezoelectric driving and signal processing circuit to the piezoelectric bone conduction receiver driving modules, so that the phases of the piezoelectric driving signals received by the piezoelectric bone conduction receiver driving modules are same or opposite. The piezoelectric bone conduction receiver and the portable electronic device have a beneficial effect of improving call privacy.