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本文就4种彩色电视制式的各自特征阐述了自动识别切换的基本原理,介绍了几种切实可行的识别方案、逻辑流程图和实用电路。
In this paper, the basic principles of automatic identification switching are described on the four characteristics of four color television systems. Several practical identification schemes, logic flow diagrams and practical circuits are introduced.