发明名称 Electronic timepiece
摘要 An electronic timepiece which comprises a time-counter for counting a number of reference clock pulses issued from a reference oscillator; a control circuit for controlling the selection of various functions; a display device for displaying count values corresponding to the various functions; and at least two independently provided manually operative switching devices. The condition in which the at least two switching devices are jointly operated is detected by an AND circuit. The period of time during which the AND circuit continues to send forth an output signal indicating the joint operation of the two switching devices is measured and a function-designating circuit specifies that one of the various functions instructed by the control circuit which corresponds to the measured period of time of joint operation of the two switching devices. Any function specified by the function-designating circuit is carried out by one of the at least two switching devices.
申请公布号 US4170105(A) 申请公布日期 1979.10.09
申请号 US19770796521 申请日期 1977.05.13
申请人 CASIO COMPUTER CO LTD 发明人 KASHIO, TOSHIO
分类号 G04G5/00;G04F10/00;G04G5/04;G04G9/08;G04G21/00;(IPC1-7):G04C3/00;G04C9/00;G04F10/04 主分类号 G04G5/00
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