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    • 4. 发明专利
    • Integrated circuit for timepiece
    • 用于定时电路的集成电路
    • JPS61137093A
    • 1986-06-24
    • JP25890284
    • 1984-12-07
    • Citizen Watch Co Ltd
    • KIHARA HIROYUKI
    • G04C3/00G04D7/12G04G99/00
    • G04D7/12
    • PURPOSE:To perform the high speed circuit test of an integrated circuit for a timepiece without consuming wasteful power, by allowing a part of FF of a frequency dividing circuit to function in place of a selector and directly inputting a reference frequency signal to the frequency dividing circuit. CONSTITUTION:A T-terminal 4 is brought to L by external operation and a high speed signal Pf is inputted from a phi terminal 2. An inverter 11 outputs a reversal signal -Pf and a NOR gate 12 outputs the inverse phase of the signal -Pf, that is, the signal Pf. The output of FF7a is H when the signal Pf is H and comes to L when the signal Pf is L, that is, the signal -Pf is H. Therefore, the output of FF7a comes to the same signal as the signal Pf and the signal Pf is inputted to a frequency dividing circuit 7b. By this method, the high speed circuit test of the integrated circuit for an electronic timepiece can be performed through the circuit 7b.
    • 目的:为了进行时钟集成电路的高速电路测试,不浪费电力,通过允许分频电路的一部分功能代替选择器,并直接将参考频率信号输入到分频 电路。 构成:通过外部操作将T端子4带到L,并且从phi端子2输入高速信号Pf。反相器11输出反相信号-Pf,NOR门12输出信号的反相 - Pf,即信号Pf。 当信号Pf为H时,FF7a的输出为H,当信号Pf为L时为L,即信号-Pf为H.因此,FF7a的输出与信号Pf和 信号Pf被输入到分频电路7b。 通过这种方法,可以通过电路7b进行电子表的集成电路的高速电路测试。
    • 6. 发明专利
    • Time device
    • 时间设备
    • JPS5764831A
    • 1982-04-20
    • JP14132580
    • 1980-10-09
    • Nec Corp
    • EHAMA RIYUUKICHI
    • G08C25/00G04D7/12G06F1/14
    • G04D7/12
    • PURPOSE:To provide the information for searching a fault, by carrying out the switching to the normal system when a fault is detected at either one of a doubled timepiece circuit and at the same time storing the time of each timepiece circuit. CONSTITUTION:Timepiece circuits 100 and 101 of a time device, etc. are doubled, and either one of these circuits is selected 120 to be transferred 202 to an information process system. If circuits 110 and 111 that detect the normal state of the circuits 100 and 101 detects a fault, the selecting circuit 120 is switched to set the normal system. At the same time, the time of each timepiece circuit is stored in register circuits 160 and 161 by an instruction of a control circuit 130. The contents of storage are displayed on an error time display circuit 150 via a time display circuit 170. Thus the state of fault can be made known easily to obtain the information for searching a fault.
    • 目的:为了提供搜索故障的信息,当在双倍时钟电路中的任一个检测到故障并且同时存储每个钟表电路的时间时,通过执行到正常系统的切换。 构成:将时间装置等的时计电路100和101加倍,将这些电路中的任一个选择为120,以传送202到信息处理系统。 如果检测到电路100和101的正常状态的电路110和111检测到故障,则切换选择电路120以设置正常系统。 同时,每个钟表电路的时间由控制电路130的指令存储在寄存器电路160和161中。存储内容经由时间显示电路170显示在错误时间显示电路150上。因此, 可以容易地知道故障状态以获得用于搜索故障的信息。