METHOD OF GENERATING FINGERPRINT IMAGE AND FINGERPRINT SENSOR

A method of generating a finger image includes determining a quantity of electric charge to be removed from each of a plurality of detection circuits connected to a fingerprint sensor, based on an amplifier characteristic of each of the plurality of detection circuits; obtaining a second electrical quantity by removing the quantity of electric charge from a first electrical quantity that is input to each of the plurality of detection circuits; integrating the second electrical quantity to obtain an integrated value; and generating the fingerprint image based on comparison between the integrated value of the second electrical quantity and a predetermined threshold value. 公开了一种产生指纹图像的方法，包括：基于连接到指纹传感器的多个检测电路中的每个检测电路的放大器特性，确定要从所述多个检测电路中的每个检测电路去除的电荷量；以及通过从输入到所述多个检测电路中的每个检测电路的第一电量中去除所述电荷量来获得第二电量；对所述第二电量进行积分以获得积分值；以及基于所述第二电量的所述积分值与预定阈值之间的比较来产生所述指纹图像。