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專利授權區

專利授權區
專利名稱(中)	整合卷積神經網路運算電路的影像感測器
專利名稱(英)	IMAGE SENSOR INTEGRATED WITH CONVOLUTIONAL NEURAL NETWORK COMPUTATION CIRCUIT
專利家族	中華民國：I786992 大陸：CN116266889A(公開號) 美國：11,770,642
專利權人	國立清華大學 100%
發明人	謝志成,徐子翔
技術領域	光電光學

專利摘要(英)
An image sensor integrated with a convolutional neural network computation circuit is provided. The image sensor includes: a pixel array including multiple pixels divided into multiple pixel groups, each pixel converting a light signal into a first pulse width modulation (PWM) signal; a convolution computation circuit controlling a turn-on time of a corresponding weighted current according to the first PWM signal of each pixel in each pixel group, and accumulating the weighted currents of the pixels into an integrated current; a comparison circuit converting the integrated current into a second PWM signal and comparing with that of an adjacent pixel group to output the second PWM signal with a larger value; and a classification circuit quantizing the second PWM signal to a quantization value according to a weight of a node in a fully-connected layer corresponding to each pixel group, accumulating the quantization values of all of the pixel groups to a feature value, and comparing the feature value with a feature threshold to obtain a classification result.

專利摘要(英)

An image sensor integrated with a convolutional neural network computation circuit is provided. The image sensor includes: a pixel array including multiple pixels divided into multiple pixel groups, each pixel converting a light signal into a first pulse width modulation (PWM) signal; a convolution computation circuit controlling a turn-on time of a corresponding weighted current according to the first PWM signal of each pixel in each pixel group, and accumulating the weighted currents of the pixels into an integrated current; a comparison circuit converting the integrated current into a second PWM signal and comparing with that of an adjacent pixel group to output the second PWM signal with a larger value; and a classification circuit quantizing the second PWM signal to a quantization value according to a weight of a node in a fully-connected layer corresponding to each pixel group, accumulating the quantization values of all of the pixel groups to a feature value, and comparing the feature value with a feature threshold to obtain a classification result.

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