【正文】
1 多 功 能 數(shù) 字 鐘 設(shè) 計(jì) 姓名: 徐 立 日期: 20xx 年 11 月 15 日 2 摘要 摘要: 多功能數(shù)字鐘采用數(shù)字電路實(shí)現(xiàn)對(duì) “時(shí) ”、 “分 ”、 “秒 ”數(shù)字顯示的計(jì)時(shí)裝置。具有時(shí)間顯示、鬧鐘設(shè)置、報(bào)時(shí)功能、校正作用。走時(shí)準(zhǔn)確、顯示直觀、精度、穩(wěn)定等優(yōu)點(diǎn)。電路裝置十分小巧 ,安裝使用也方便。同時(shí)在日期中,它以其小巧,價(jià)格低廉,走時(shí)精度高,使用方便,功能多,便于集成化而受廣大消費(fèi)的喜愛 ,小到人們?nèi)粘I钪械碾娮邮直?,大到車站、碼頭、機(jī)場(chǎng)等公共場(chǎng)所的大型數(shù)顯電子鐘 關(guān)鍵字 :晶體振蕩器、分頻器、計(jì)數(shù)器、顯示器 和校時(shí)電路 Abstract: multifunction digital clock adopting digital circuit to achieve , points, seconds digital display timer device. With time display, alarm time function, calibration, role. Keep good time, show intuitional, precision, stability, etc. Circuit device is very small, install and use convenient also. Meanwhile in date, it with its small, inexpensive, high precision, easy to use and walking, the function is much, facilitate integration and receives general consumption favorite, small to People39。s Daily life, the electronic watches to stations, docks and airports, public large digital electric clock Key word: crystal oscillator frequency device, counter, points, a display and reset circuit