利用AT 89s51单片机及实时时钟集成电路ds1643，设计了一个电子钟系统，实现了日期、时间显示及报时功能。
Use AT89S51 single chip and real-time clock integrated circuit DS1643, designed an electronic clock system, realized the date, time display and reported time.
提供一种设置包括在数字广播接收器中的实时时钟的时间的方法和设备。
Provided are a method and apparatus for setting the time of a real-time clock included in a digital broadcast receiver.
实时时钟模块的维护工作和时间“非易失性”，或当一个永久的记忆集成电路关机参数。
A real time clock module maintains operating and timing parameters in "non-volatile" or persistent memory when an integrated circuit is powered down.
介绍了一种用来测量电能计量装置的时钟基频误差，并提供GPS标准时间以校准其实时时钟的新型工具。
A new tool that can test the clock base frequency error of energy measuring devices and provide GPS standard time to calibrate real-time clock was introduced in this paper.
介绍了一种用来测量电能计量装置的时钟基频误差，并提供GPS标准时间以校准其实时时钟的新型工具。
A new tool that can test the clock base frequency error of energy measuring devices and provide GPS standard time to calibrate real-time clock was introduced in this paper.
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