Hangzhou Hikmicro Sensing Technology Co., Ltd.

Mengdi Song

Jun Liu

Jia He

A readout circuit of infrared focal plane array (FPA) and a control method therefor. The readout circuit is connected to an infrared FPA, which comprises a plurality of pixels. The readout circuit comprises an integral and readout unit, a correction unit and a digital control unit. For each pixel, the correction unit determines an initial bias value based on a to-be-corrected parameter value for the pixel; the integral and readout unit determines, based on a first current corresponding to the initial bias value and a second current caused a pixel response temperature value, a responsive voltage value for the pixel; and the digital control unit adjusts, based on a comparison result between the responsive voltage value and a preset voltage value, the to-be-corrected parameter value for the pixel, to obtain an adjusted parameter value, and determines, based on the adjusted parameter value, an optimal corrected parameter value for the pixel.

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Hangzhou, China

Mengdi Song