The switchover to digital signal by 2012 means that multichannel choice will soon be available to almost all households.
2012年，英国将完成模拟信号向数字信号的转换，这就意味着几乎每家每户都可自由选择多种频道。
2
The switchover has happened in the Border, Granada and South West television regions, with the majority of the rest of the country turning off the analogue signal over the next two years.
在边境、格拉纳达和西南地区，已经实现了数字转换，全国的其余大部分地区未来两年内将关闭模拟信号传输。
3
This paper introduces signalswitchover circuit that transforms voltage signal to current signal in order to improve signal reliability.