US 2022/0103767 A1 · IMAGE SENSING DEVICE AND IMAGE SENSING METHOD

Abstract

An image sensing device and an image sensing method are provided. The image sensing device includes a pixel array and a readout circuit. The pixel array includes multiple sensing sub-pixels arranged in an array. During a first exposure period of a frame period, the sensing sub-pixels are simultaneously exposed to respectively store multiple first sensing signals in multiple storage units of the sensing sub-pixels. During multiple first readout periods of the frame period, the readout circuit sequentially reads out the first sensing signals stored in the storage units during different periods. During each of multiple dynamic sensing periods of the frame period, all or part of the sensing sub-pixels are reset and then simultaneously exposed again, and the readout circuit then simultaneously reads out multiple second sensing signals of the sensing sub-pixels.

Claims22

Dependent claims

An image sensing device, comprising:

a pixel array, comprising a plurality of sensing sub-pixels arranged in an array;
and
a readout circuit, coupled to the pixel array, wherein
during a first exposure period of a frame period, the plurality of sensing sub-pixels are simultaneously exposed to respectively store a plurality of first sensing signals in a plurality of storage units of the plurality of sensing sub-pixels, wherein
during a plurality of first readout periods of the frame period, the readout circuit sequentially reads out the plurality of first sensing signals stored in the plurality of storage units during different periods, wherein
during each of a plurality of dynamic visual sensing periods of the frame period, all or part of the plurality of sensing sub-pixels are reset and then simultaneously exposed again, and the readout circuit then simultaneously reads out a plurality of second sensing signals of the plurality of sensing sub-pixels.

3 more elements

An image sensing method, suitable for an image sensing device, wherein the image sensing device comprises a pixel array and a readout circuit, and the pixel array comprises a plurality of sensing sub-pixels arranged in an array, the image sensing method comprising:

simultaneously exposing the plurality of sensing sub-pixels to respectively store a plurality of first sensing signals in a plurality of storage units of the plurality of sensing sub-pixels during a first exposure period of a frame period;
sequentially reading out the plurality of first sensing signals stored in the plurality of storage units during different periods by the readout circuit during a plurality of first readout periods of the frame period;
and
resetting and then simultaneously exposing again all or part of the plurality of sensing sub-pixels, and then simultaneously reading out a plurality of second sensing signals of the plurality of sensing sub-pixels by the readout circuit during each of a plurality of dynamic visual sensing periods of the frame period.

1 more element

Dependencies are inferred from the claim text.

Image sensing device and image sensing method

Life of this patent

Image sensing device and image sensing method

Life of this patent

Abstract

Claims22