JPS5935177A - Analogue electronic timepiece with alarm apparatus - Google Patents

Abstract

PURPOSE:To generate an alarm when an expected time is elapsed and to restore a usual hand operating state, by a method wherein the time display hand is permitted to be combined with the function of an expected time display hand and the hand is preceded by a rapid traverse pulse to be waited. CONSTITUTION:In single-load rapid traverse operation, when a manipulation member is manipulated, an H signal is applied to the input of an AND gate 19 and the output signal from the output terminal of FF 23 is brought to H to be applied to a drive circuit 8 through a change-over circuit 4 while an electromagnetic coil 14 is driven to operate a hand for 20sec. By repeating this operation, a constant value is counted. In the next step, down-count is performed by a hand operating pulse and, when up-count is coincided with the down-count, that is, a zero count state is estabilished, a coincidence signal is outputted from a coincidence signal generating circuit 35 and an alarm signal is generated from an alarm apparatus 36 while a usual operating state can be restored.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an analog electronic timepiece having an alarm device that generates an alarm signal.

2. Description of the Related Art Among pointer-type display electronic watches, so-called analog electronic watches, alarm clocks equipped with indicator hands have been proposed to generate an alarm signal when a scheduled time arrives. However, watches with guide hands have a complicated structure and are thicker, so they lack the beauty that is a feature of analog watches. In order to eliminate this drawback, a time display hand has recently been proposed in which the time display hand also functions as a reference hand. However, in conventionally proposed watches of this type, when the external operating member is operated, the hands are fast-forwarded to the alarm set time, but then the hands return to the current time, so it is usually impossible to know the set time. Furthermore, in the case of adjusting the set time, it was necessary to quickly advance the hands to the set time and then adjust the cent time. When used as an alarm clock, once the hand is set to the set time as described above, the current time will be memorized, and although it is more convenient for the hand to normally display the current time, the scheduled time will be displayed for a short time. When using it simply as a short-time timer, it is easier to perform the scheduled time cent operation, and once the scheduled time is set, it is more convenient for the hands to display the scheduled time until the scheduled time is reached.

An object of the present invention is to allow the normal time display hand to double as a scheduled time display hand, and to make the scheduled time cent operation easy, and when the scheduled time cent is performed, the hand continues to display the scheduled time until the scheduled time is reached. The objective is to obtain an analog electronic clock with an alarm device.

The analog electronic timepiece according to the present invention includes an input signal generation circuit that generates an input signal in response to an operation of an external operating member, a fast-forward pulse generation circuit that generates a fast-forward pulse, and a fast-forward pulse that drives the fast-forward pulse in response to the input signal. The step motor has a switching circuit that applies an application to the circuit, a comparison circuit that compares the number of pulses of the fast forward pulse and the normal hand movement pulse, and an alarm device that generates an alarm signal in response to a coincidence signal of the comparison circuit. It is characterized in that the hands are advanced in time by fast forward rotation in response to the operation of the external operating member, and when a scheduled time has elapsed, an alarm signal is generated from the alarm device and the hands return to the normal movement state.

The present invention will be described in detail below along with the drawings.

FIG. 1 is a circuit block diagram of an analog electronic timepiece according to the present invention. In FIG. 1, 1 is an oscillation circuit, and 2 is a frequency divider circuit. This frequency divider circuit 2 divides the frequency of the signal from the oscillation circuit 1 until a signal necessary for driving the clock is obtained. Reference numeral 6 denotes a hand movement pulse generation circuit which combines signals from appropriate output stages of the frequency dividing circuit 2 to generate a pulse every 20 seconds having a pulse width necessary for hand movement.

(In this embodiment, a clock that moves its hands every 20 seconds will be explained.) 4 is a switching circuit that is composed of an AND gate 5, 6 and an OR gate 7, and normally allows the above-mentioned hand movement pulse to pass through. When an operating member (not shown) is operated, a fast forward pulse, which will be described later, is passed in place of the hand movement pulse. 8 is a drive circuit, and a toggle flip-flop 9 (hereinafter referred to as T
-FF), a NAND gate 10.11, and an inverter 12.13, from the switching circuit 4 to the T
- Every time a pulse is applied to the input terminal T of the FF9, the inverters 12 and 13 alternately output pulses. Reference numeral 14 denotes an electromagnetic coil, which is driven by an inverter 12.16 to rotate the rotor 15 by one step every 20 seconds, thereby driving the pointer via a wheel train (not shown). Furthermore, these electromagnetic coils 14
, the rotor 15 constitutes a step motor together with a stator (not shown). 16 is a single fast forward switch terminal, 1
7 is a switch terminal for fast forwarding 10 minutes, which is normally off.
However, by operating an external operating member, it is connected to the positive terminal of a power source (not shown) and turned on. 18 is an input signal generation circuit, AND gate 19.20
, cent reset flip-flop 21.22.26 (
(hereinafter referred to as 5-RFP), 10-minute counter 24,
Normally, the L signal is output from the OR gate 25 and 5-RFF23, and the 14 signal is output from the OR gate 25 and 5-RFF23 only when the external operation member is operated. . 28 is a fast forward pulse generating circuit which generates a fast forward pulse of 64 IIz. 33 is a comparison circuit, and an amplifier down counter 64
and a coincidence signal generation circuit 65, the up/down counter 34 performs an amp count using a fast-forward pulse, and performs a down count using a hand movement pulse, and when the amp count and the down count match, that is, O
When the counting state is reached, a coincidence signal is output from the coincidence signal generation circuit 65. 36 is an alarm device, and alarm signal generation circuit 3
7 and an alarm signal generating device 38 (a buzzer device in the embodiment).

In the above configuration, normally the output of the output terminal Q of S-1 (FF23 is held at the L signal), so the AND gate 5
is in an open state, so that a hand movement pulse passes from the switching circuit 4 and is applied to the T-FF 9 of the drive circuit 8 and the NAND gate 10.11. NAND gate 10.1
1 is alternately opened by the output of T-FF9 and the inverted output, and pulses every 20 seconds are alternately applied to the inverter 12.13. It is driven every time and displays the current time.

Next, a description will be given of the operation when operating an external operating member (not shown) to fast-forward the finger hook and setting the timer for one hour.

First, the single fast forward operation will be explained. When the external operating member is operated, the single fast forward switch terminal 16 is connected to the positive side of the power supply (not shown), and 14 signals are applied to one input terminal of the AND gate 19. be done. Since the output signal from the hand movement pulse generation circuit 6 is applied to the other input terminal of the AND gate 19 via the inverter 27, the single fast forward switch terminal 16 is connected to the positive side of the power supply while no hand movement pulse is generated. AND at the same time as connected to
11 signals are output from gate 19. Note that while the hand movement pulse is being generated, the AND gate 19 does not output an H signal, but this is to ensure that the hand movement is completed before fast forwarding. Therefore, in this case, if the operation of the external operating member is continued, the H signal is output from the AND gate 19 at the same time as the hand movement pulse ends. When the external operation member is operated and the I4 signal is output from the AND gate 19, the signal is applied to the cent terminal S of the 5-RFF 23 via the Or gate 26. Therefore, from the output terminal Q of the S-R, FF 23 The output signal is switched and held at the H signal, and a signal is applied to the switching circuit 4 via the inverter 30, so that the AND gate 5 is closed, and the AND gate 6 is opened, and the output is switched.

Further, the AND gate 31 is opened, and an L signal is applied to the reset terminal R of the up/down counter 34 via the inverter 32, so that the up/down counter 34 is released from reset.

On the other hand, the H signal from the AND gate 19 is S-R, FF21
It is also applied to the set terminal S of the 5-IRFF21, and the output of the output terminal Q of the 5-IRFF21 is switched and held at the I'' signal. 5-RFF
The output of the 11 signal from 21 is applied to the AND gate 29 via OI (gate 25), so the AND gate 28 becomes open, and the fast-forward pulse from the fast-forward pulse generation circuit 28 passes through the AND gate 29.AND gate 2
The fast-forward pulse that has passed through the switching circuit 4 is applied to the AND gate 6 of the switching circuit 4, but since the AND gate 6 has already been switched to the open state, the fast-forward pulse passes through the switching circuit 4 and is applied to the drive circuit 8. is applied to The fast forward pulse applied to the NAND gate 10.11 of the drive circuit 81 is the T-FF
9, output from NAND gate 10 or N A, N D gate 11, and output from inverter 1.
2 or impark 16. Therefore, the electromagnetic coil 14 is excited, the rotor 15 is driven by the electromagnetic coil 14 to rotate one step, and the hands move for 20 seconds.

Further, the fast-forward pulse output from the AND gate 29 is also applied to the up terminal U of the up/down counter 64, so that the amplifier down counter 64, which has already been reset, counts up by 1.

In addition, since the fast-forward pulse is also applied to the reset terminal R of the S-4FF21, when only one fast-forward pulse passes through the AND gate 29, the 5-RFF21 is reset by the falling signal of the fast-forward pulse, and the 5-RFF21 is reset by the falling signal of the fast-forward pulse. -RFF
The output signal of 21 is switched and held as an L signal. Therefore A
The ND gate 29 is in a closed state.

That is, when the external operating member is operated once, the AND gate 29 is activated.
One fast-forward pulse is output from , and the pointer is fast-forwarded by 20 seconds. After that, when a hand movement pulse is generated from the hand movement pulse generation circuit, this hand movement pulse is applied to the down terminal of the up/down counter 34 via the AND gate 31 which is already in an open state, and the amplifier down counter 34 counts down by 1. Let's do it. When the up/down counter 34 counts down by 1, the up/down counter 64 enters the 0 count state because it has already counted 1 amp, and a coincidence signal is output from the coincidence signal generation circuit 65 and applied to the alarm device 66. A buzzer sounds to notify you that the specified time has elapsed.

The coincidence signal from the other coincidence signal generation circuit 35 is 5-RFF.
It is also applied to the reset terminal of 5-FtFF 23, and the output signal of 5-FtFF 23 is switched and held at the L signal.

Therefore, the switching circuit 4 returns to the state of passing the normal hand movement pulse, and the up/down counter 64 is reset.

Therefore, from this point on, the hands are driven by the hand movement pulses and perform normal hand movement.

In actual operation, it is rare for the user to stop operating the external operating member after advancing the pointer by 20 seconds, and the user may operate the external operating member many times while watching the progress of the pointer, until the pointer reaches the desired point. In many cases, the operation involves bringing the object to a certain location. The operation in this case can be easily understood from the operation explained above, so the explanation will be omitted, but in this case as well, the pointer is fast-forwarded by following the operation of the external operation member for the scheduled time, and the pointer reaches the time when it is set. A buzzer will sound when the time has elapsed, and the hands will move normally from then on.

Next, an explanation will be given of the operation when it is desired to sound the buzzer after 10 minutes with one operation of the external operation member.

In this case, a 10-minute external operating member (not shown) is operated. When this external operating member is operated, the 10-minute fast-forward switch terminal 17 is connected to the positive side of the power supply, and the A
14 signals are applied to one input terminal of the ND gate 20. Since the output signal from the hand movement pulse generation circuit 6 is applied to the other input terminal of the AND gate 20 via the inverter 27, while no hand movement pulse is generated],
At the same time that the 0 minute fast forward switch 17 is connected to the positive side of the power supply, the AND gate 20 outputs the 11 signal.

While the hand movement pulse is occurring, the AND gate 19 to 1
Although the 4 signal is not output, in this case, by continuing to operate the external operating member in the same manner as described above, the 11 signal is output from the AND gate 19 at the same time as the hand movement pulse ends.

When the external operation member is operated and an H signal is output from the AND gate 20, the signal is passed through the OR gate 26 to S-1.
It is applied to the set terminal S of %FF23. Therefore 5-
The output signal from the output terminal Q of the RFF 23 is switched to the H signal and held, and the signal is applied to the switching circuit 4 via the inverter 60, so that the AND gate 5 is in the closed state, and the AND gate 5 is closed.
The gate 6 is opened and the output is switched.

Further, the AND gate 31 is opened, and the reset of the up/down counter 34 is released.

On the other hand, the I'' signal from AND gate 20 is 5-RFF22.
, and the output of the output terminal Q of the 5-RFF 22 is switched to and held at the 11 signal. This 5-RF
Since the H signal from F22 is applied to the AND gate 29 via the OR gate 25, the AND gate 29 is in an open state, and the fast-forward pulse from the fast-forward pulse generation circuit 28 passes through the AND gate 29. The fast-forward pulse that has passed through the AND gate 29 is applied to the AND gate 6 of the switching circuit 4, but since the AND gate 6 has already been switched to the open state, the fast-forward pulse passes through the switching circuit 4 and is applied to the drive circuit. 8. Thereafter, the pointer is fast-forwarded in the same manner as the operation by a single fast-forward pulse.

Further, the fast forward pulse output from the AND gate 29 is also applied to the up terminal U of the up/down counter 64.
The up/down counter 64, which has already been reset, starts counting amplifiers.

Further, the fast-forward pulse is also applied to a 10-minute counter 24, which counts at the falling edge of the fast-forward pulse, and counts every 10 minutes, that is, 30 minutes.
When it counts the pulses, it outputs the I signal. Since the output of this I] signal is applied to the reset terminal of S-RFF2'2, 5-RFF22 is reset, and the signal from its inverted output terminal Q is switched and held at the 14 signal, so that the counter 24 is will be reset. 5 at the same time
The signal from the output terminal Q of the -RFF 22 is switched to and held at the L signal, so that the AND gate 29 is closed.

That is, when 30 fast-forward pulses pass through the AND gate 29, no fast-forward pulses are generated after that.

It is not possible to pass through AND gate 29.

Therefore, the pointer advances to the position advanced by 10 minutes, and the up/down counter 34 counts up by 30 and then stops counting up. Next, as time passes, a hand movement pulse is applied to the down terminal of the up/down counter 64 via the AND gate 61 every 20 seconds, thereby decreasing the count state of the up/down counter 64. When the down count of 30, that is, 10 minutes has elapsed, the up/down counter 640 goes into the O state, and the match signal generation circuit 35 generates a match signal. This coincidence signal is applied to the alarm device 36, which generates a buzzer sound to notify that the set time of 10 minutes has elapsed.

On the other hand, this coincidence signal is also applied to the reset terminal of 5-RFF 23, and the output of 5-RFF 23 is switched and held at the L signal. Therefore, the switching circuit returns to the state of passing the normal hand movement pulse, and the amplifier down counter 64 is reset.

Therefore, from this point on, the hands are driven by the hand movement pulses and perform normal hand movement.

Next, an embodiment will be described in which it is made clear that the hand is indicating the scheduled time while the hand is positioned at the scheduled time ahead of the start time.

FIG. 2 is a circuit block diagram for achieving the above object, in which the circuit blocks enclosed by dotted lines are added to the circuit blocks shown in FIG. 1.

Therefore, items outside the dotted line in Figure 2 that have the same function as those shown in Figure 1 are given the same numbers as in Figure 1, and only those necessary for explaining Figure 2 are shown in Figure 1. This is an excerpt from the following.

In FIG. 2, 41 is a scheduled time display pulse generation circuit;
A pulse with a narrow pulse width that does not rotate the rotor 15 is generated every second. 42 is an AND gate, and each of the three input terminals is a scheduled time display pulse generation circuit 41
is connected to the output terminal of the OR gate 25 via the impark 43 and the output terminal Q of the 5-RFP 23,
The output terminal of this AND gate 42 is the input terminal T of a toggle flip-flop 44 (hereinafter referred to as T-FF44).
is connected to one input terminal of NAND gate 45 and 46, and the low input terminal of NAND gate 45 is connected to T-FF44.
The low input terminal of the NAND gate 46 is connected to the inverting output terminal Q of the T-FF 44;
One input terminal of the output terminal of the ND gate 45 is NAND.
The output terminal of the NAND gate 46 is connected to the low input terminal of an AND gate 47 which is connected to the output terminal of the gate 10, and the output terminal of the NAND gate 46 is connected to the low input terminal of an AND gate 48 whose one input terminal is connected to the output terminal of the NAND gate 11. connected, A
The output terminals of ND gates 47, 48 are each separately connected to the input terminal of inverter 12, 16.

In the above configuration, 5-RF in normal hand movement condition
Since the output from the output terminal Q of P23 is held at the L signal, the AND gate 42 does not output the pulse from the scheduled time display pulse generation circuit 41, but outputs the L signal, and the N
Eleven signals are output from AND gates 45 and 46.

Therefore, inverter 12.16 has NAND gate 10.
No. 11 output pulses are applied as they are, and normal hand movement is performed.

Next, a case will be explained in which the external operation member is operated and a fast forward pulse is output from the AND gate 29. In this case, the OR gate 25 outputs the 14 signal, so the output of the impark 46 becomes the L signal. The AND gate 42 does not output a scheduled time display pulse but outputs an L signal. Therefore, for the same reason as mentioned above, the hands are fast-forwarded by the fast-forward pulse.

Next, a case will be described in which the hand is fast-forwarded to a scheduled time and the fast-forward pulse ends. The fast-forward pulse ends because the output from the OR gate 25 becomes an L signal, and therefore the output of the inverter 43 becomes an H signal.

On the other hand, after the fast-forward pulse ends, the comparison circuit 35 shown in FIG.
5-RFF26 output terminal Q until a coincidence signal is generated.
An H signal is output from.

Therefore, a scheduled time display pulse is output from AND gate 42 and applied to one input terminal of AND gate 47.48 via NAND gate 45.46.

On the other hand, when the fast-forward pulse ends, the output from the OR gate 7 becomes an L signal, so the 1 signal is applied to the low input terminals of the AND gates 47 and 48. Therefore, a scheduled time display pulse is applied to the inverter 12 , 13 and applied to the electromagnetic coil 14 .

However, since this scheduled time display pulse does not have a pulse width sufficient to rotate the loaf 15, the loaf 15 only moves forward and backward slightly every second.

Therefore, the pointer also moves slightly forward and backward every second,
By looking at the hands, it can be seen that the hands indicate the scheduled time, not the current time.

Although the present invention has been described above with reference to embodiments, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the invention. For example, it is not necessary to use up/down 7 counters in the comparison circuit (although it is possible to replace them with other means,
It is also possible to replace the buzzer sound with a light or a means of mechanically tapping the user's arm.

As is clear from the above description, according to the present invention, it is possible to obtain an analog electronic clock equipped with an alarm device with a simple configuration. It is convenient and has great effects.

[Brief explanation of the drawing]

FIG. 1 is a circuit block diagram of an analog electronic timepiece according to the present invention. FIG. 2 is a circuit block diagram of an additional device for an analog electronic timepiece according to the present invention. 6...Hand movement pulse generation circuit, 4...Switching circuit, 18...Input signal generation circuit, 28...Fast forward pulse generation circuit, 66...・
... Comparison circuit, 66... Alarm device.

Claims (1)

[Claims] Oscillation circuit, frequency dividing circuit, hand movement pulse generation circuit, drive circuit,
In an analog electronic clock having a step motor, an input signal generation circuit generates an input signal in response to an operation of an external operating member, a fast-forward pulse generation circuit generates a fast-forward pulse, and the fast-forward pulse in response to the input signal. a switching circuit that applies a pulse of The alarm is characterized in that according to the operation of the external operating member, the pointer is rotated in fast forward direction to advance the pointer, and when a scheduled time has elapsed, an alarm signal is generated from the alarm device and the pointer returns to the normal operating state. Analog electronic clock with device.