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电视唱片系统目前主要有机械刻录、电容拾取的CED方式,光学刻录、电容拾取的VHD方式,以及光学刻录、光学拾取的光学方式三种。文中着重从信号拾取与重放、刻录系统、跟踪伺服系统以及特技重放功能等方面,围绕光学电视唱片系统比较三者的性能与特点,指出采用半导体激光器的光学方式电视唱片最有前途。文中也提到能够随录随抹的光磁盘在信息存贮及家用录放象方面的广阔前景。
At present, the system of video record has three main modes: mechanical recording, CED mode of capacitive pickup, VHD mode of optical recording and capacitive pickup, and optical modes of optical recording and optical pickup. Focusing on the performance and characteristics of the optical television recording system in terms of signal pick-up and playback, recording system, tracking servo system and trick-play function, it is pointed out that optical disc recording using semiconductor lasers is the most promising. The article also mentions broad prospects for the storage of optical disks along with recording and recording of household recording and reproducing images.