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31. 发明专利

JPS56103397A INTERVAL TIMER OF ELECTRONIC WATCH 失效
公开(公告)号：JPS56103397A
公开(公告)日：1981-08-18
申请号：JP555280
申请日：1980-01-21
申请人： SEIKO INSTR & ELECTRONICS
发明人： ODAGIRI HIROYUKI
IPC分类号： G04G13/00 , G04F1/00 , G04F5/00 , G04G99/00
摘要： PURPOSE:To provide an interval timer which generates announcing sound at plural time intervals by providing with two or more memory counters which store timer times. CONSTITUTION:The 1st timer time is inputted to the 1st memory counter 17 with the 1st switch 15, and the 2nd timer time is inputted to the 2nd memory counter 20 with the 2nd switch 18. When a timer is started, a change-over circuit 21 selects the 1st memory counter 17, and sets the content thereof in a digital counter 22. Subtraction counting is accomplished by the 1-second signal from a control circuit and when a gate 23 detects the end of counting, the change-over circuit 21 sets the contents of the 2nd memory counter 21 and subtraction counting is accomplished. The operation of setting the content of the 1st memory counter 17 again in the digital counter 22 is repeated when the gate 23 detects the end of the counting. The announcement with a buzzer is accomplished every time at the ending of the counting.

32. 发明专利

JPS5668814A COMPUTER SYSTEM WITH CLOCK CONTROL CIRCUIT 失效
公开(公告)号：JPS5668814A
公开(公告)日：1981-06-09
申请号：JP14443479
申请日：1979-11-09
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： FURUKAWA TAKAO
IPC分类号： G04F5/00 , G04G3/02 , G04G99/00 , G06F1/04 , G06F1/14
摘要： PURPOSE:To prevent the occurrence of error in measurement of time, by providing the hardware to measure the pulse number of the clock pulse. CONSTITUTION:When the clock number corresponding to the desired time is set at the clock setting circuit 21 by the address-and-data bus 8, the counter 22 counts the basic clock signal 5. This count value is compared with the clock number set at the circuit 21 by the comparator 24. And the reset signal is delivered to the counter 22 when a coincidence is obtained. Thus the counter 22 is reset to start counting again. At the same time, the measuring circuit 25 meausres the frequencies of the coincidence signals supplied from the comparator 24 and then calculates the cumulative value of the time measurement to then hold the result of calculation in the holding area. The CPU3 obtains the result of measurement in the area 26 via the bus 8. In such way, the measurement of time is carried out by the hardware, thus preventing the occurrence of measurement error.

34. 发明专利

JPS5544355B2 失效
公开(公告)号：JPS5544355B2
公开(公告)日：1980-11-12
申请号：JP9530672
申请日：1972-09-22
IPC分类号： G03B17/00 , G03B1/00 , G03B9/64 , G03B17/40 , G04F3/00 , G04F5/00 , G05B19/02 , H03K17/296

35. 发明专利

JPS5552985A COUNTING DEVICE 失效
公开(公告)号：JPS5552985A
公开(公告)日：1980-04-17
申请号：JP12586578
申请日：1978-10-13
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： MURAYAMA MASAKI
IPC分类号： G04G3/00 , G04F3/00 , G04F5/00
摘要： PURPOSE:To enable counting time in high accuracy for long time by counting pulses of high frequency produced from an oscillator at every half cycle of commercial alternating current by a timer counter and controlling an oscillator enable by n shift counter. CONSTITUTION:A commercial alternating current is applied through a full-wave rectifier 2 and a waveform shaper 3 to a flip-flop FF5, which is thereupon set at every half wave of the commercial alternating current to allow a timer oscillator 6 to generate a clock pulse of higher frequency than the commercial alternating current. When this clock is counted by a timer counter 9 to count the time and also by a decimal counter 8 to cause the counted value to become 10, the flip-flop FF5 is reset through a detector 10 by the pulse from the counter 8 to enable the oscillator 6. Accordingly, an error is not accumulated in the counter 9 to count the time in high accuracy for long time in response to the commercial alternating current stable in period for long time.

37. 发明专利

JPS5439172A ADJUSTMENT APPARATUS OF ELECTRONIC DIGITAL DISPLAY DEVICE 失效
公开(公告)号：JPS5439172A
公开(公告)日：1979-03-26
申请号：JP5612278
申请日：1978-05-11
申请人： DIEHL
发明人： ARUFURETSUDO MAISUNAA , UERUNAA AANORUDO
IPC分类号： G04C3/00 , G04F5/00 , G04G5/00 , G04G5/02 , H03K21/08 , H03K21/18

39. 发明专利

JPS53140070A ELECTRONIC WATCH 失效
公开(公告)号：JPS53140070A
公开(公告)日：1978-12-06
申请号：JP5518077
申请日：1977-05-13
申请人： SUWA SEIKOSHA KK
发明人： MOROZUMI SHINJI
IPC分类号： G04G3/00 , G04C3/00 , G04F5/00 , G04G3/04 , H03B5/32 , H03B5/36
摘要： PURPOSE:To reduce the power consumption of a quartz oscillating circuit by using an inverter adopting as a load an element corresponding to a current source and the quartz oscillating circuit having a quartz oscillator and a preset output capacity.

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