发明名称 Electronic alarm timepiece
摘要 An electronic timepiece includes a frequency supply for providing a relatively high frequency time base signal, a frequency converter responsive to the time base signal to provide a relatively low frequency time unit signal, timing signals, and a plurality of word pulses indicative of a plurality of data words representing time data concerning the current time and additional data concerning alarm time. A timekeeping register stores the time data and the additional data and provision is made for generating a carry signal in dependence on the time data. The information in the register is altered in response to the time unit signal and the carry signal to update the time data and provision is made to write in the additional data into the register. The coincidence between the current time and the alarm time is detected by an alarm unit which generates a coincidence signal indicative thereof. Display elements responsive to an output of the timekeeping register are operable to display the time data and the additional data.
申请公布号 US4270194(A) 申请公布日期 1981.05.26
申请号 US19780943261 申请日期 1978.09.15
申请人 CITIZEN WATCH COMPANY LIMITED 发明人 MOROKAWA, SHIGERU;SEKIYA, FUKUO;HASHIMOTO, YUKIO;NOMURA, YASUSHI;KOGA, KEIICHIRO
分类号 G04G15/00;G04C3/00;G04G3/02;G04G5/04;G04G9/00;G04G11/00;G04G13/02;G04G17/08;G04G99/00;(IPC1-7):G04B23/02;G04C21/16 主分类号 G04G15/00
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