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專利授權區
專利名稱(中)	影像感測器晶片及其感測方法
專利名稱(英)	IMAGE SENSOR CHIP AND SENSING METHOD THEREOF
專利家族	中華民國：I805358 大陸：CN117119320A(公開號) 美國：11,785,353
專利權人	國立清華大學 100%
發明人	謝志成,邱岷洋
技術領域	光電光學,電子電機

專利摘要(英)
The present invention provides an image sensor chip and a sensing method thereof. The image sensor chip includes pixel units. Each pixel unit includes a reset switch, a sampling switch, a light sensing element, a capacitor and an output circuit. The sampling switch is coupled between the reset switch and the light sensing element. The capacitor is coupled between the sampling switch and the output circuit. The output circuit outputs difference information corresponding to the difference between a plurality of sensing results of the light sensing element in different frame periods to a corresponding readout line. The sampling switch has a ON-time length in an exposure period and an OFF-time length in a readout and clean-up period. The ratio of the ON-time length to the OFF-time length is related to the ratio of the capacitance of the light sensing element to the capacitance of the capacitor.

專利摘要(英)

The present invention provides an image sensor chip and a sensing method thereof. The image sensor chip includes pixel units. Each pixel unit includes a reset switch, a sampling switch, a light sensing element, a capacitor and an output circuit. The sampling switch is coupled between the reset switch and the light sensing element. The capacitor is coupled between the sampling switch and the output circuit. The output circuit outputs difference information corresponding to the difference between a plurality of sensing results of the light sensing element in different frame periods to a corresponding readout line. The sampling switch has a ON-time length in an exposure period and an OFF-time length in a readout and clean-up period. The ratio of the ON-time length to the OFF-time length is related to the ratio of the capacitance of the light sensing element to the capacitance of the capacitor.

聯絡資訊
承辦人姓名	李曉琪
承辦人電話	03-5715131 #31061
承辦人Email	hsiaochi@mx.nthu.edu.tw