自从CD唱片问世以来,数字光盘的新品种不断涌现。现在的光盘已不仅可以装载数字音频信号,而且能够装载视频信号。由于它具有优良的声音和图像质量,它特别适用于要求较高的场合,现在已经成为家庭影院系统的主要节目源。激光视盘的工作原理与传统的模拟视频技术有很大区别。传统技术是采用模拟信号,在传输、贮存、复制、重放过程中,每一处理步骤都会产生失真和噪声并积累叠加在原始信号上,使信号质量变劣。而激光视盘则采用了数字化的信号处理过程,能够保证信号的质量不会 Since the advent of CDs, new varieties of digital discs have emerged. Today’s discs are not only capable of loading digital audio signals, but also capable of loading video signals. Because of its excellent sound and image quality, it is particularly suitable for demanding applications and is now a major source for home theater systems. Laser disc works with the traditional analog video technology is very different. The traditional technology is to use analog signals. During the process of transmission, storage, reproduction and reproduction, distortion and noise are generated in each processing step and accumulated on the original signal to make the signal quality worse. The laser disc uses a digital signal processing, to ensure the quality of the signal will not