Patent ID: 11871136
Assignee: SMARTSENS TECHNOLOGY (HK) CO., LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. An image readout method, comprising:
a row selection line selecting output rows, and a column selection line outputting an output signal of column pixels to a comparison circuit;
the comparison circuit comparing the output signal of the column pixels with a ramp signal and outputting a pulse signal to obtain a first output signal and a second output signal;
a selection module selecting the first output signal of the comparison circuit during a first sampling count, and selecting the second output signal of the comparison circuit during a second sampling count;
a counter counting according to the first output signal and the second output signal of the comparison circuit to obtain a total quantization value of the first sampling count and the second sampling count, so as to obtain an actual signal quantization result according to the total quantization value.