A digital pixel image sensor for real-time readout

被引：54
|
作者：
Andoh, F [1 ]
Shimamoto, H
Fujita, Y
机构：
[1] NHK Japan Broadcasting Corp, Sci & Tech Res Labs, Tokyo 1578510, Japan
[2] NHK Japan Broadcasting Corp, Engn Adm Dept, Tokyo 1578510, Japan
来源：
IEEE TRANSACTIONS ON ELECTRON DEVICES | 2000年 / 47卷 / 11期
关键词：
analog-digital conversion; counting circuits; digital circuits; displays; image processing; image sensors; imaging; optoelectronic;
D O I：
10.1109/16.877174
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An experimental digital image sensor that converts analog video signals into 8-bit digital signals for each unit pixel, and reads out the signals at an operating clock of standard TV has been de, eloped. Each pixel is equipped with a photodiode, a 1-bit analog-to-digital converter (1-bit ADC), an 8-bit pulse counter, and a signal processing circuit, The sensor system displays a two-dimensional (2-D) image in real time. The 1-bit ADC has a dynamic range of 110 dB at an operating voltage of 1.3 V. "Knee" characteristics and the results of an investigation into random noise sources in the circuit are also described.
引用
收藏
页码：2123 / 2127
页数：5
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