This article describes reuse based functional block design flow through developing the header error control (HEC) processing block set.

Video transmission error control based on CDMA1X wireless system;

Joint forward/backward video error control algorithm in H.264;

Method for compression and error control of a special picture;

Application of error controlling in electric power remote monitoring and management system;

Error controlling and code disturbing are difficulties in the course Data Communication Theory.

This paper restricts itself to the introduction of its basic principle, subtracting every adjacent period can rare eliminate common interfere and other interfere because of slowly variational signal, and it also discusses in detail the application of error controlling by software in TWACS.

In this papre,some mistake control methods which are often used in reality are introduced in detail.

In order to avoid the decoding and reading mistake,a mistake control technology based on Hamming code was proposed for magnetic markers coding,its principle,structure and information expression method were introduced in detail,and the test in Proving Ground for Highway and Traffic of MOC and application in Tacheng o.

This paper introduces the cause of born matrix of the RM code,the detailed coding process of TFCI and the simple method for mistake control,also it gives the implementing process in a special way.