HDMI接收端误码修复算法及ASIC设计

ASIC Design of Error Correcting Algorithm for HDMI Sink

提出了一种针对HDMI传输特性的接收端误码修复算法,该算法能修复部分因HDMI通道传输造成的误码;采用失效分析,计算误码的可能性;分析误码特征,寻找最相似的源码,再进行修复;并且可以配合HDMI本身的BCH纠错码使用,能提高HDMI传输的可靠性。该算法存在一定的局限性,在HDMI信号传输的不同阶段,有不同的修复率。并对该算法进行ASIC设计——基于Verilog HDL的RTL级设计,通过功能仿真验证和综合,证明了该算法的有效性。

This paper presents an error correcting algorithm based on HDMI coding character,which can fix many errors when the data transmit through the HDMI channel.This new algorithm uses failure analysis to evaluate the error possibilities of each possible error;analyses the error characteristic and sort the most similar source,and then corrects it.It can also be combined with BCH code in the HDMI system to improve the reliability of HDMI transmission.However,the algorithm has some limitations：there are different re-pair rates in different stages of HDMI data transmission.An ASIC design of the algorithm is given in this article using Verilog HDL language for RTL level design,and its feasibility is proved by function simulation,verification and synthesis.