Low-power encoding method for data interface of color CIS

被引：0
|
作者：
Liu Y. [1 ,2 ]
Yang Y. [1 ,2 ]
Wen B. [1 ]
机构：
[1] School of Microelectronics, Xidian University
[2] Key Lab of Ministry of Education for Wide Band-Gap Semiconductor Materials and Devices, Xidian University
来源：
Xinan Jiaotong Daxue Xuebao/Journal of Southwest Jiaotong University | 2010年 / 45卷 / 04期
关键词：
Bus encoding; CMOS (complementary metal-oxide-semiconductor) image sensor; Data interface;
D O I：
10.3969/j.issn.0258-2724.2010.04.014
中图分类号：
学科分类号：
摘要：
To efficiently reduce the dynamic power dissipation of data interface of color CMOS (complementary metal-oxide-semiconductor) image sensor (CIS), signal activity of the data interface was analyzed. Based on high correlation and low activity of upper 6 bits of the same-color pixel signals, an encoding method was proposed. With this method, whether the upper 6 bits of the current interface signal are held is determined by comparing the current pixel signal with the last same-color pixel signal to decrease the signal activity of the data interface obviously. The simulation results indicate that the dynamic power dissipation of the interface is reduced by 24.2% with the proposed method.
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页码：568 / 573
页数：5
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