Patent ID: 11967170
Assignee: CHIPONE TECHNOLOGY (BEIJING) CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A biometric information acquisition system, comprising:
a transparent substrate;
a light source;
a photoelectric conversion device, which is located at one side of the transparent substrate with the light source, and is configured to receive light reflected by the transparent substrate and generate corresponding electrical signals; and
a processing device, configured to obtain biometric information according to the electrical signals,
wherein at least a portion of the transparent substrate is made of flexible material,
wherein the photoelectric conversion device comprises an array of photodiodes, and the processing device comprises:
a processing unit, configured to provide a control signal;
a rectification feedback unit, configured to generate an analog voltage signal according to a corresponding one of the electrical signals;
a control unit, configured to turn on a corresponding row of photodiodes in the array according to the control signal, wherein each one of the photodiodes is configured to convert received light into a corresponding one of the electrical signals when that photodiode is turned on; and
a conversion unit, configured to generate a digital signal according to the analog voltage signal and transmit the digital signal to the processing unit,
wherein, the processing unit is configured to obtain an image to be detected representing the biometric characteristic information according to the digital signal.