| 1. | Although stb just is a sort of terminal equipments of the tv signal transmission system , however pivotal technique involves the data demodulation , channel decode , transport stream de - multiplexing , audio and video signal decompression technique and real - time software technique with upriver data coding technique etc . therefore , software and hardware technology research and development of stb , which can increase usefulness with dependable of digital video signal and audio signal for study later make the theories preparation and backlog experience
机顶盒虽然只是数字电视传输系统的终端设备,但所用到的关键技术涉及到数据解调、信道解码、传输流的解复用、音视频信号解压缩技术以及实时软件技术和上行数据的编码技术等。因此,通过对机顶盒软、硬件的研究开发,既能为以后研究如何提高信息传输的有效性和可靠性作理论上的准备,也为图像信号和音频信号的数字化处理积累经验。 |
