Audio device and display device
AssigneeBoe Technology Group Co., Ltd.
InventorLin Zhu
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Abstract
The present invention provides an audio device and a display device. The audio device comprises a vibrating diaphragm, an ultrasonic emitting element and a processing unit. The vibrating diaphragm is used for converting an acoustical signal into an electrical signal or converting an electrical signal into an acoustical signal, receiving a reflected wave signal of an ultrasonic signal generated by the ultrasonic emitting element after reflected from the a surface of an object to be detected, converting the reflected wave signal into an electrical signal, and sending the electrical signals to the processing unit. The processing unit is used for processing the converted electrical signals to obtain surface feature information of the object to be detected.
Claims20
An audio device, comprising a vibrating diaphragm used for converting an acoustical signal into an electrical signal or converting an electrical signal into an acoustical signal, wherein the audio device further comprises an ultrasonic emitting element and a processing circuit,
- the ultrasonic emitting element is used for emitting an ultrasonic signal;
- the vibrating diaphragm is also used for receiving a reflected wave signal of the ultrasonic signal reflected from a surface of an object to be detected, converting the reflected wave signal into an electrical signal, and sending the converted electrical signal to the processing circuit;
- and
- the processing circuit is used for processing the converted electrical signal so as to obtain surface feature information of the object to be detected, the surface feature information being used for identifying the object to be detected.
Dependencies are inferred from the claim text.