用于无线内视镜系统的基带处理专用集成电路  

Digital-analog mixed-mode baseband processing ASIC for wireless endoscopic systems

作　　者：陈新凯[1] 张晓昱[1] 姜汉钧[2] 王志华[2] 

机构地区：[1]清华大学电子工程系,北京100084 [2]清华大学微电子学研究所,北京100084

出　　处：《清华大学学报（自然科学版）》2009年第7期994-997,共4页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(60475018)

摘　　要：为了降低无线内视镜系统的功耗以延长工作寿命,提出并实现了一种用于无线内线镜系统的数模混合的基带处理专用集成电路。该专用集成电路集成了准无损图像压缩、双向通信控制和电源管理等功能。由图像滤波器及JPEG-LS编码器组成的低功耗高性能的图像压缩算法能完成对原始Bayer彩色滤波阵列格式的图像的实时压缩。该数模混合芯片的设计通过了FPGA验证,并采用0.18μm的CMOS工艺流片。测试结果表明该芯片能有效地降低内视镜系统48%的整体功耗。A digital-analog mixed-mode ASIC was developed for baseband processing to reduce the power consumption and increase the lifetime of wireless endoscopic systems. Near-lossless image compression, bi-directional communication and power management modules are integrated into the chip. The image compression algorithm is composed of an image filter and a JPEG-LS encoder to compress the images with a raw Bayer color filter array pattern in real time. The design has been successfully verified on FPGA and fabricated using 0. 18μm CMOS technology. Tests show that the overall power consumption is reduced by 48%.

关 键 词：专用芯片 集成电路 无线内视镜 基带处理 图像压缩 

分 类 号：TN409[电子电信—微电子学与固体电子学]