JPS58113884A - Electronic timepiece with timer - Google Patents

Abstract

PURPOSE:To enable visual checking of the remaining time of a timer, by making the remaining time of the timer correspond to the amount of operation of a second hand. CONSTITUTION:A timer time is set in a setting counter 11 by the operation of a switch 10. The output of the counter 11 is stored by a latch circuit 12. The coincidence of a fast-forwarding counter 14 forwarding fast a motor unit with the latch circuit 12 is detected 14, and a motor 5 is driven to forward fast a second hand intermittently in an operation amount corresponding to the content stored in the latch circuit 12. Since the content of the setting counter 11 decreases with passage of time, the amount of fast-forwarding steps of the second hand is also decreases with passage of time.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for checking the set amount when a timer r is provided in an analog electronic timepiece.

There are various ways to easily add a timer to an analog watch. Although a simple display element may be used to indicate the time set on the timer, the structure for setting the time is complicated and the soil used cannot be easily used.

In Figure 1, in an analog clock, if the externally operated switch 10 is a button, for example, and the number of times the button is pressed is stored in a circuit and set to -1 push unit 1 minute, then It is configured to function as a timer after a minute.

In this method, there is no way to clearly confirm the timer setting amount from the outside, and it is not clear whether the timer is set unless the timer is constantly notified by a buzzer during use.

Also, it is not possible to know the set amount.

In the present invention, by controlling the movement of the second hand when setting the timer, with the help of a multiplex circuit,
We propose a method that allows you to know the elapsed time as a timer. That is, hour 21, minute @''I in Figure 1
22. This is intended to control the movement state of the second hand 21 of the second hand 23.

FIG. 2 is a block diagram of an embodiment of the present invention. Here, an example will be described in which the setting amount for the timer changes as the operating capacity of the time display unit changes in accordance with the change in the remaining time of the timer. Time standard 1 is crystal vibration -7! In the example of the quartz watch used at the meeting, the frequency dividing circuit 2 (here, the timer part 7) performs all divisions, for example, to the minute.

) The motor drive circuit 4, the motor 5, and the time display unit 6, which includes hours, minutes, and a second hand that normally moves every second, have a well-known configuration. Here, the timer part 7 is connected to the signal from the external operation part 10, and the timer is set counter 11, counter 1.
1, a latch circuit 12 for storing the signal of 1, the latch circuit 1;
2, a fast-forward signal counter 14 that fast-forwards the second hand, a signal matching circuit 13 between the latch circuit 12 and the counter 14, and a second counter 16 that counters the signal every second.
, a signal matching circuit 15 is provided which detects a match between the output of the latch 12 and the second counter 16, clocks the latch 12, and resets both the fast-forward counter 14 and the second counter 16. A timer that rings a buzzer for a certain period of time for a samurai when all the latch 12 signals are LOWK.Buzzer ringing circuit 8, buzzer 9, and latch 12
When there is a signal output, the control circuit 3 judges the output signal on the latch side and inputs it to the motor drive circuit 4.

The operation of the present invention will be briefly explained using this block diagram. The switch input of the external operation unit F310 is the setting counter 111.
From C, count how many times it has been input. The counter receives a signal from the frequency dividing circuit 2 in accordance with the membership fee, but here the input is in units of minutes. The output of the counter is latch circuit 1
2, and the latch output is stored by matching circuit 1.
A synchronized sound is generated using the input clock signal output from 5 and output. Here, the output of the latch 12 controls the control circuit 3, and the output of the matching circuit 13 drives the motor in rapid forward motion, for example, several times per second. Fast forward counter 1
4 fast forwards to the motor section'? Since it is involved in the output of the latch circuit 13, the coincidence circuit 13 detects the coincidence with the output of the latch circuit 13. For the timer, the second is counted, and all the matches of the fast-forward signals of the fast-forward counter 14 mentioned above are detected.For example, when the timer is set to N=4 minutes, the output of the latch is 4, and the seconds are counted. A coincidence is detected every four seconds by the coincidence circuit 15 via the counter 16r.

Since the output of coincidence 15 resets the second counter 16 and the fast forward counter 14 by 8M, a fast forward counter signal corresponding to 4 seconds is outputted from 14.
starts the control circuit 3r and causes the motor to perform fast forwarding.

Similarly, when the output of the latch 12 reaches 3 (minutes), a signal for fast forwarding for 3 seconds is output from the latch 14. The number of steps to fast-forward the motor sequentially decreases, and the number of fast-forwards 9 of the motor with a timer mark decreases.

= 5- FIGS. 3 and 4 show electronic circuit diagrams and timing charts that are mainly based on the timer shown in FIG. 2.

In addition to the configuration shown in FIG. 2, the configuration shown in FIG.
3+34+35+36 and ant game) 28.37, AND gate 27 that inputs the signal to the buzzer b5 and the motor
, NOR gates 25 and 2 constituting the switch control circuit 3
6. Inverter 40, D as part of motor drive circuit 4
Type flip-flop 43, and gate 41+42
+44.45, NOR game) 46, 47, motor part 5
It is composed of a coil 48, an input chattering prevention circuit 24 for a switch 1° of an external operation section, and the like.

The basic configuration @ is the same as that explained in the block diagram. First, in normal operation when the switch 10 is not turned on, the output of the switch control circuit 3 becomes or/'iLow, and the AND gates 44 and 45 are set to Right.
By inputting a signal of y2H2 with a phase difference to 45 and OR game) 46 + 47', 48 motor coils are operated to accurately drive the motor every second.

Since this is a well-known motor drive circuit, details are omitted.

Next, when the switch is turned on 1o7iy times, that is, when it starts operating as a timer, the signal is transferred to the chattering prevention circuit 24'.
(The setting counter is UP via Z. The counter has a well-known structure, so the details are omitted, but the clock is manually driven in minutes. Therefore, it is set as an N-minute counter. The signal N is input to the latch 12. There are n.

Next, the output signal Q of latch 12, 1+ C2IQ3 +Q
, 4 corresponds to output signals C1e 02 , C5, and C4, and the outputs of the counter 14 and the latch 12 are matched in order to output a signal sound for fast forwarding to the motor. 3 By the matching circuit shown in FIG. 13, N is confirmed here. And gate 28
A signal is input to the D-type flip-flop 43 for driving the motor as an output signal. The switch control circuit 3 is reset to the reset state by the input switch 10, and the NOR gate 26 is set to 0m.
Since it is M ta Hght vc, Anne 1
9 gates 41 * 42 Fl High, it is possible to receive the output signal b'l of the matching circuit 13 in this way. In other words, a signal for N fast-forward steps causes five motors to operate.

Next, all second signals are input as the second counter 16rri clock input, and the output of the latch 12 is C1502*0.
3. C! 4, the signal of n7nN (minutes) is detected by the N match all match circuit 15 as a second counter, and the output of AND gate 37 is a set/reset NOR gate) 38.39 output gK, seconds The motor fast forwards at the same time as counter 16 is reset! lla counter 14
Also reset.

Here, the N motor fast forward signal is coming, so the city [
N fast forward signal is output. In other words, N fast forward t) signals are repeatedly output.

In this state, the output g of the NOR gate 39 is input to the latch 12 as a clock input, so that the output from the counter 11 of the latch 12 is temporarily stored in the latch, and output as a synchronized signal to the latch output. connected for n
ing.

This is how N fast forwards for 1 minute! ll signal (for example, N=
For 4, fast forward 4 times and fast forward again 4 seconds later)
rIt is output repeatedly. After 1 minute, setting counter 1
1 output is 1dN-1, so the latch output Q, 1
+ Q 2 IQ 3 , Q 4 ×N-1 output signals are output, so the counter 14 is
, N-1 (3 minutes) fast forward signal by the coincidence circuit 13,
The counter 16 and the -4 circuit 15 repeat N-1<
3 minutes) will be output in fast forward @No. Similarly, in the next minute, the output of the gate 28 as a fast-forward signal decreases every minute to N-2. Therefore, the motor and second hand movement is set to H every minute as a hand movement step per time.
, the fast forward movement of the hand in N seconds steps becomes N -1 seconds fast forward, and the fast forward step becomes N・N −1+N 2・
... 3.2. During the last minute at 1 second, the hand moves every second according to the normal step hand movement. Thus, when all set values as timer 9-- are completed, i.e. output C1 of latch 12 as part of the memory of setting counter 11.
When C4 is all LOWK, the output f of the AND gate 27 becomes RlghtK, which activates the buzzer ringing circuit 8 included in the timer and causes the buzzer 9 to ring. At the same time,
NO of the output of the AND gate 27 and the switch control circuit 3
Since the input signal is input to the R gate 26 to notify that the timer setting has been completed, the motor drive circuit section switches to the normal movement of the hands every second.

In the embodiment of the present invention, the finger movement t is changed according to a decrease in the timer set value, that is, a change in the remaining time, but it is also possible to simply display the same fast-forward step movement of the hand at the timer set value until the timer ends. The configuration for this purpose may be omitted in part, as shown in FIG. 15 becomes unnecessary. Since it is basically the same as the present invention, the explanation will be omitted, but the number of times the timer is set N is constant as the output value N of the gate 28 of the coincidence 10-circuit 13 due to the third factor, and therefore, the fast forward movement of the hand is caused by the end of the timer. The hand moves rapidly for vN steps at a time.

In the embodiment of the present invention, the number of operations is set to 7 minutes using the external operation part, and the hand movement is performed in second steps. You are free to make the time display section Ux timer correspond to any function, such as changing the time. Most of the timers are set to minutes in practical use by general users, and the external operation settings and second hand movement settings described in the present invention are extremely easy to use and have high practical value.

As described in detail above, it is possible to add an electronic circuit configuration to an analog quartz watch with a timer so that it corresponds to the setting amount of the second hand movement r timer.
Since the timer i setting amount can be visually confirmed, the timer can be easily configured without a special digital display, and the user can also see the setting value, so it can be used with confidence, and the analog clock can be multifunctional. is now possible.

[Brief explanation of the drawing]

FIG. 1: An explanatory view of the external appearance of a timer display using the present invention. FIG. 2: A block diagram showing one embodiment of the present invention. Fig. 3: Partial electronic circuit diagram of the second meat. FIG. 4: A partial timing chart diagram of FIG. 3. 1... Time standard 2... Branch circuit 3... Signal control circuit 4... Motor drive circuit 5... Motor 6... Time display 7... Timer part □ 8... Buzzer Ringing circuit 9...Buzzer 10...External operation (switch) 11+14+16...Counter 12...Latch circuit 13, i5 river coincidence circuit Applicant Suwa Seikosha Co., Ltd. Agent Patent attorney Task 13-

Claims (2)

[Claims] (1) In an electronic watch with a timer in which the setting amount of the timer corresponds to the amount of movement of the hands per time of the time display section, as the setting amount decreases after the timer starts operating, the time display section moves once. An electronic watch with a timer that displays the remaining time of the Lv timer as the amount of hand movement decreases. (2) The timer setting amount is N minutes, and the setting amount is 1
Claim 1: In an electronic timer equipped with a timer in which the hand movement is N seconds per time, the second hand movement step is N-1 seconds per time when the timer is N-1 minutes after the timer starts operating.
Electronic clock with timer as described in section.