Image sensing system and image sensing method of complementary metal oxide semiconductor

Abstract

The present invention discloses an image sensing system and method thereof on the basis of a complementary metal oxide semiconductor. By generating a control signal input terminal continued repeatedly switched between the high potential and low potential, the image signal modulated at a particular frequency to avoid DC voltage differences affect image quality, to improve the image quality of technology to achieve efficacy.

Description

technical field [0001] The present invention relates to an image sensing system, in particular to an image sensing system and method based on CMOS which uses CMOS as an active pixel image sensor. Background technique [0002] In recent years, with the popularity and vigorous development of semiconductor technology, Complementary Metal-Oxide-Semiconductor (CMOS) image sensors have gradually been able to compete with Charge Coupled Device (CCD) sensors , especially in the low-end market, since the CMOS image sensor does not require a special manufacturing process, resulting in low cost, the CMOS image sensor has already become the mainstream in the low-end market. [0003] Generally speaking, the image quality produced by CMOS image sensors is not as good as that of CCD image sensors, but due to the lower cost and power saving of CMOS, it is quite attractive for portable devices, so Therefore, how to improve the image quality of CMOS has become one of the problems that variou...

AI Technical Summary

Problems solved by technology

However, the above methods cannot be applied to CMOS image sensors with traditional manufacturing processes and packaging, and new manufacturing processes and architectures will also cause problems of yield decline and cost increase

Therefore, the above method still cannot effectively solve the problem of poor CMOS image quality

[0005] To sum up, it can be known that there has been a problem of poor CMOS image quality in the prior art for a long time, so it is necessary to propose improved technical means to solve this problem

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