Electronic device and sound capturing method

摘要

An electronic device and a sound capturing method are described. The electronic device includes at least one first bone conducting unit, which is operable to detect vibration produced by an object in contact with the first bone conducting unit, and to generate an alternating current signal based on the detected vibration to capture a sound produced by the vibration; and a processing unit, which is operable to receive the alternating current signal and to perform an audio processing on the alternating current signal.

主权项

1. An electronic device, comprising:
at least one first bone conducting unit, which is operable to detect vibration produced by an object in contact with the first bone conducting unit, and to generate an alternating current signal based on the detected vibration to capture a sound produced by the vibration; and a processing unit, which is operable to receive the alternating current signal and to perform an audio processing on the alternating current signal, wherein each of the first bone conducting units is formed in a first form or a second form; in the first form, each of the first bone conducting unit comprises:
a first metal substrate which is arranged in the electronic device; anda first piezoelectric sheet which is arranged on a first surface of the electronic device;the first piezoelectric sheet is polarized by the first metal substrate in advance so that a saturated electric field is formed inside of the first piezoelectric sheet;the first piezoelectric sheet is deformed when the object in contact with the first piezoelectric sheet vibrates and the alternating current signal is generated by the electric field inside of the first piezoelectric sheet; in the second form, each of the first bone conducting unit comprises:
a capacitive pressure detecting module including:a metal thin-film electrode which is arranged on a first surface of the electronic device, and is operable to be deformed based on the vibration produced by the object; anda fixed electrode which is arranged in the electronic device, and is connected to a voltage supply module;the voltage supply module is operable to supply power to the capacitive pressure detecting module so that there is a predetermined voltage difference between the metal thin-film electrode and the fixed electrode.