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随着我国电视广播数字化进程的加快,传统广播已经难以承担满足未来信息发展个性化需求的重任。人们丰富多彩的信息需求,使得当代理想的文化传媒应该具备两个条件:一是能够承受用户数目的自由增长,二是支持对每一个用户实现个性化按需服务。数据广播作为广播电视系统的新一代业务,它的出现成为一种必然。数据广播是一种能够以很高的速度将文本、图形、视频、音频、数据等传输到诸如PC、机顶盒等智能设备的一项技术。数据广播服务商可以从因特网或其他途径获取大量的信息,通过数字广播信道,将丰富的多媒体信息送到用户家中,通过镜像存储,由用户按照需求取用。数据广播通过广播的方式为用户提供了多媒体的个性化信息服务。
With the speeding up of the digitization process of the television broadcasting in our country, the traditional broadcasting can hardly afford the heavy responsibility to meet the individualized demand of the future information development. People’s rich and colorful information needs make contemporary ideal cultural media should have two conditions: First, to be able to withstand the free growth of the number of users; Second, to support the personalized on-demand service for each user. As a new generation of broadcasting and television system, data broadcasting has become a necessity. Data broadcasting is a technology that can transfer text, graphics, video, audio, data, etc. to smart devices such as PCs, set-top boxes, and the like at a high speed. Data broadcasting service providers can obtain a large amount of information from the Internet or other channels, send rich multimedia information to users’ homes through digital broadcasting channels, and store them by mirroring, and users can access the information as needed. Data broadcasting provides users with multimedia personalized information services through broadcasting.