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在VCD风行的今天,消费者比较其纠错能力的高低似乎成了选择VCD时的最重要的指标。因此,生产厂家的广告上也大呼其机型有超强纠错能力。但究竟哪些因素决定了VCD的纠错能力呢?在此,有必要消除消费者心中的一些误解。VCD系读取数字音视频信息的光、电子、机械等结合的高科技电器,其主要硬件是机芯。它包括:激光头组件、加载运转机构以及循迹、聚焦伺服电路等。目前,国产VCD机芯都是进口货,应用最多的是飞利浦和索尼产品。以笔者观
In today’s popular VCD, consumers compare the level of error correction capability seems to have become the most important indicator when choosing VCD. Therefore, the manufacturer’s ads also shouted that its models have superior error correction capabilities. But what factors determine the VCD’s error correction capabilities? Here, it is necessary to eliminate some misunderstanding in the minds of consumers. VCD Department read digital audio and video information of light, electronics, machinery and other high-tech electrical appliances, the main hardware is the movement. It includes: laser head assembly, loading and running mechanism and tracking, focusing servo circuit. At present, domestic VCD movement are imported goods, the most widely used is Philips and Sony products. In my opinion