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公开(公告)号：US4417135A
公开(公告)日：1983-11-22
申请号：US148526
申请日：1980-05-09
摘要： In a tape recorder including a circuit for generating pulses according to the running of a tape, an electronic counter circuit is provided which includes a counter for counting pulses and a display section for displaying its count value. The electronic counter circuit further includes a control circuit for disconnecting a display section from a power supply source a predetermined time period after the running of the tape is stopped and a memory for storing the count value at all times.
摘要翻译： 在包括根据磁带的运行产生脉冲的电路的磁带录音机中，提供了一种电子计数器电路，其包括用于计数脉冲的计数器和用于显示其计数值的显示部分。 电子计数器电路还包括用于在磁带停止运行之后的预定时间段内断开显示部分与电源的控制电路和用于一直存储计数值的存储器。
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公开(公告)号：US4370684A
公开(公告)日：1983-01-25
申请号：US148503
申请日：1980-05-09
CPC分类号： G11B15/093 , G11B27/34
摘要： In a tape recorder, which has a circuit for producing pulses according to the running of a tape, there is provided an electronic counter circuit having a counter for counting pulses produced from that circuit and a display section for displaying the count. The electronic counter circuit includes a missing-pulse detector for detecting the pulse interval of the output pulse signal of the pulse generating circuit and producing a detection signal when the detected pulse interval exceeds a predetermined interval, a circuit for producing an alarm for a predetermined period of time according to the output signal of the missing-pulse detector, and a circuit for supplying a rotation stop signal to a motor of the tape recorder according to the output signal of the missing-pulse detector.
摘要翻译： 在具有根据磁带的运行产生脉冲的电路的磁带记录器中，提供了一种电子计数器电路，其具有用于对从该电路产生的脉冲进行计数的计数器和用于显示计数的显示部分。 该电子计数器电路包括一个缺失脉冲检测器，用于检测脉冲发生电路的输出脉冲信号的脉冲间隔，并在检测到的脉冲间隔超过预定间隔时产生一个检测信号，一个用于产生预定时段的报警电路 根据缺失脉冲检测器的输出信号的时间，以及根据缺失脉冲检测器的输出信号向磁带录像机的电机提供旋转停止信号的电路。
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