CAJ | 학술논문

数字音频广播（DAB）标准的Slide show业务选用JPEG编解码技术是一种必然。但是,JPEG编解码技术中存在错误扩散现象。该文正是基于这一背景,结合DAB体制论证Slide Show业务在实时播放场合中存在的不足。最后,提出一种JPEG标准中DRI标记位的新的应用,在不会影响已上市的DAB产品的功能的同时,让新产品可以有效地改进此不足。
수자음빈엄파（DAB）표준적Slide show업무선용JPEG편해마기술시일충필연。단시,JPEG편해마기술중존재착오확산현상。해문정시기우저일배경,결합DAB체제론증Slide Show업무재실시파방장합중존재적불족。최후,제출일충JPEG표준중DRI표기위적신적응용,재불회영향이상시적DAB산품적공능적동시,양신산품가이유효지개진차불족。
It is inevitable for Digital Audio broadcasting（DAB） protocol choosing JPEG compression technique.However,JPEG technique has error propagate phenomenon.This paper firstly based the error propagate phenomenon,then demonstrate the shortage that it bring into the Slide Show service in the read-time broadcasting situation,associated with DAB system.At last,the paper presented a new application method of marker bit which can improve the Slide Show function of new products,under the condition of that the products that have come into the market can still be operating smoothly.