Race in the Making
Race in the Making
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DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
L. Hirschfeld
中科院分区：
文献类型：
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作者：
L. Hirschfeld
一种用于有线电视系统中的转换器，该转换器连接在传输路径和电视接收机之间，用于选择由传输路径传送的多个电视信号中的任何一个，该转换器包括一个宽带部分，用于将所有接收的电视信号转换为高于接收的电视信号频率的中频，使得在输入信号的频带内没有图像出现。然后，窄带部分将预定较高中频的电视信号中所选的一个转换为预定电视频道的较低频率，以供电视接收机接收。
A converter for use in a cable television system and interconnected between a transmission path and a television receiver for selecting any one of a plurality of television signals carried by the transmission path. The converter includes a broadband section for translating all received television signals to intermediate frequencies higher than the frequencies of the received television signals such that no images appear within the band of input signals. A selected one of the television signals at a predetermined higher intermediate frequency is then translated by a narrow band section to a lower frequency of a predetermined television channel for reception by the television receiver.