JPS5942272B2 - alarm electronic clock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an alarm electronic timepiece that displays the time using hands and a dial and has an alarm generating function.

In alarm clocks that display the time in an analog manner using hands and a dial, the alarm occurrence time was generally set using a guide hand, but with this method, it was difficult to set the alarm occurrence time accurately. In particular, with highly accurate electronic watches, although accurate time measurement is easily possible, it is not possible to accurately set the alarm occurrence time, and the accuracy inherent to electronic watches cannot be fully demonstrated. It disappears.

In order to reduce the setting error of the alarm occurrence time, for example, a watch with a built-in time counter or a memory circuit for storing the alarm occurrence time has been proposed. To set the time accurately, the set time must be displayed in some way.

As a display means, for example, a display unit that conventionally displays the date and day of the week may be used to display the alarm occurrence time instead of the date or day of the week.

This display section is composed of a batten board and a day board on which the date and day of the week are printed, respectively, and by rotating these plates, the date and day of the week are displayed through the window section.

Therefore, now instead of the day of the week board, the ``hour'' of the alarm occurrence time is displayed.
An hour board is provided to display the "day" board, and a division board is provided to display the "minute" board instead of the date board.

However, the display on the hour stand shows the hour plate as 12 or 2.
This can be done relatively easily by dividing it into four parts, but if the dividing plate is divided into 60 parts to display the number of parts, the numbers displayed become small and difficult to read.

Furthermore, if the division plate is divided into 60 parts, it becomes troublesome to operate the switch for setting the alarm occurrence time.

Note that normally, when setting the alarm occurrence time, it is extremely rare to set it in one-minute increments.

Therefore, the present invention provides an alarm electronic clock that allows the alarm generation time to be set in predetermined time increments, and that allows the set alarm generation time to be seen through a window formed in the dial. It provides
The details will be explained below based on the illustrated embodiment.

FIG. 1 is a plan view showing the external appearance of an alarm electronic timepiece according to the present invention, and reference numeral 1 indicates an outer case.

A crown 2 is provided on the side surface of the exterior case 1, and a dial 3 is provided on the top surface.

At the bottom of the dial 3, there are provided as a display part a time plate 5 and a division plate 6 on which 'minutes' are printed in 5-minute increments. Board 3
It can be seen through a window 4 formed in a part of the window.

An hour hand 7 as a pointer is attached to the tip of an hour wheel pipe (not shown) extending to the top of the dial 3, and a second wheel shaft (not shown) passing through the pipe and extending to the top thereof. A minute hand 8 as a pointer is attached to the tip of the needle (not shown).

FIG. 2 is a block diagram showing a system of an alarm electronic timepiece according to the present invention, and reference numeral 9 is an oscillation circuit using a crystal oscillator or the like.

The oscillation output signal obtained by the oscillation circuit 9 is supplied to a frequency dividing circuit 10.

The output of the frequency dividing circuit 10 is supplied to a 1-drive pulse generation circuit 11, and the output of the 1-drive pulse generation circuit 11, that is, the drive pulse, is supplied to a converter 12 such as a step morph.

The converter 12 is driven by a drive pulse, and in response to the mechanical operation of the converter 12, the hour hand 7, minute hand 8 (first
The clock mechanism 13 including the components shown in the figure) is driven.

On the other hand, reference numeral 14 is a prefix counter in which a sexagesimal counter and a quinary counter are arranged vertically, and the output of this prefix counter is as follows:
A time counter 15 is supplied.

The time counter 15 consists of a 12-decimal minute counter 16 and a 24-decimal hour counter 17, and the count contents output from the minute counter 16 and hour counter 17 in each BCD code are supplied to the coincidence detection circuit 21. .

The negative number configuration circuit 21 includes one
The respective storage contents of a binary minute storage counter 19 and a 24-base hour storage counter are also provided.

Reference numeral 22 designates an alarm generation time setting switch that is turned ON only once by rotating the crown shown in FIG. memory counter 1
9 stores the alarm occurrence time, for example, in 5 minute increments.

The setting switch 23 can be turned on only once by turning the crown 2 (shown in the first diagram) one turn to the right at the first drawer position.
This setting switch 23 causes the hour storage counter 20 to store the "hour" base of the alarm occurrence time, for example, in one-hour increments.

The switch indicated by numeral 24 turns the crown 2 (shown in the first diagram) to 2.
This switch 24 is a switch that is turned on when moving from the drawer position of the first stage to the drawer position of the first stage.
Acts as a reset switch to reset 8.

The switch 25 is a switch that is turned ON when the crown 2 (shown in the figure) is positioned at the second drawer position.
Then, the prefix counter 14 and the time counter 15 are all reset.

Further, a high potential voltage VDD of the power supply voltage is applied to one end of each of the switches 22 to 25.

The signal output from the coincidence detection circuit 21 described above is supplied to the control circuit 27 of the alarm generation device 26 to which the frequency division signal from a predetermined frequency division stage of the frequency division circuit 10 is supplied.

The output of the control circuit 27 is supplied to an alarm 1 drive circuit 28, and the output thereof is supplied to a speaker 29.

Therefore, the frequency dividing circuit 10 frequency-divides the oscillation output signal of the oscillation circuit 9 into time pulses that serve as a reference for time measurement of, for example, IHz.

The drive pulse generation circuit 11 generates two drive pulses having mutually opposite phases based on the above-mentioned time pulse.

This one drive pulse mechanically operates the converter 12, thereby driving the clock mechanism 13 and displaying the time using the hour hand 7, minute hand 8, etc.

Next, enter the time when the power was turned on to the watch body, for example.
Assuming that it is 9:59 a.m., the following describes how to set the alarm occurrence time, adjust the time, etc. by operating the switches and operating each part.

First, when the power is turned on, the pointers 7 and 8 and each counter 14
The state of each of the contents of 20 to 20 is uncertain.

Therefore, pull out the crown 2 (first illustration) from the normal position to the first drawer position, rotate it left and right, and set the alarm occurrence time displayed on the window 4 (first illustration) of the dial 3 to 10 a.m. Set to 00 minutes.

In this embodiment, numbers are printed on the hour plate 5 in one-hour increments, and numbers are printed on the division plate 6 in five-minute increments.

Therefore, the setting can be made in 1-hour increments for the "hour" scale, and in 5-minute increments for the "minute" scale.

Therefore, it can be set more easily than when the time is set in 1-minute increments.

Moreover, discrimination between morning and afternoon is performed by an identification sound, which will be described in detail later.

In this way, the display content of the window section 4 (first illustration) is set to 10:00 am.

Next, the crown 2 (shown in the first diagram) is positioned at the second pulled out position.

This turns the switch 25 on.

Therefore, the frequency dividing circuit 10, drive pulse generating circuit 11, and counters 14 and 15 are in a reset state.

At this time, the drive system of the pointer 7.8 is mechanically disconnected.

In this state, rotate crown 2, hour hand 7, minute hand 8.
is set to indicate 10:00.

In this state, when the time reaches 10:00 AM, the crown 2 is pushed in to the normal position.

By this operation, when the crown 2 moves from the second pulled out position to the first pulled out position, the switch 24 is turned on and the memory circuit 18 is reset.

Therefore, after the crown 2 (shown in the first diagram) is positioned at the normal position, the converter 12 and the counters 14 and 15 perform normal operations.

Next, suppose that the alarm generation time is set to, for example, 3:15 p.m.

In this case, first pull out the crown 2 (shown in the first diagram) to the first pulled out position, and then rotate the crown 2 five times in the right direction.

As a result, the switch 23 is turned on five times.

Therefore, the time storage counter 20 stores 5''.

Next, turn crown 2 three times to the left.

This turns on the switch 22 three times. Therefore, 3'' is stored in the minute storage counter 19.

In the memory circuit 18, "5" is displayed on the "hour" stand, and "minute" is displayed on the "hour" stand.
The number 3 is stored in the stand, but the window 4 of the dial 3 (
In the first diagram), 3:15 is indicated by a time plate 5 and a dividing plate 6 as a display section.

+13 I+, 15″ is displayed.

This means that the component force rank is 16 and the minute memory counter 19 is 12.
It consists of a decimal counter, and a minute counter 1.
6 is supplied with pulses with a period of 5 minutes from the front counter 14, so the minute counter 16 and the minute memory counter 1
It can be easily understood that while the content of 9 is "1", it is actually the content of 5 minutes.

By configuring it in this way, the front counter 14 becomes complicated, but the minute counter 16 and the minute storage counter 19
Alternatively, the circuit configuration of the coincidence detection circuit 21 can be simplified, and the division plate 6 (first
(shown in the figure) can be made larger, making it easier to read.

In addition, since the switch is turned on only once by one rotation of the crown 2 (shown in the first diagram), the mechanical configuration can be simplified.

Furthermore, the operability of the crown 2 can be improved compared to the case where the dividing plate 6, the minute counter 16, the minute memory counter 19, etc. are configured to count and store information in one-minute increments.

In this state, when the time reaches 3:15 p.m., the count content of component force rank 16 becomes l311, and the count content of hour counter 17 becomes 5''.

From this, in the match detection circuit 21, the contents of the minute counter 16 and the minute storage counter 19 match, and the contents of the hour counter 1
7 and the contents of the hour storage counter 20 are detected, and a signal for controlling the operation of the alarm generating device 26 is output for a certain period of time.

The control circuit 27 of the alarm generating device 26 to which this signal is supplied outputs a predetermined alarm signal during the period in which the signal is supplied, and supplies it to the alarm drive circuit 28.

The alarm 1 drive circuit 28 amplifies the supplied alarm signal and supplies it to the speaker 29.

FIG. 3 is a circuit diagram showing a specific example of the control circuit 27 of the alarm generating device 26 in FIG.
This switch 30 is a switch attached to the time plate 5 and the watch body shown in the figure, and is turned on immediately before '12'' is displayed on the window 4 of the dial plate 3 (first figure). It is.

Therefore, rotate the crown 2 (shown in the first diagram) to the right at the first drawer position, and press the number printed on the hour plate 5 +? 12
Each time +1 appears in window 4 (first illustration), switch 30 is activated.
turns on.

A switch signal obtained by this switch 30 is supplied via an inverter 31 to a clock terminal CL of a flip-flop circuit (hereinafter abbreviated as FF) 32.

The Q output of FF32 is connected to one input terminal of the frequency dividing circuit 10 (
A first frequency-divided signal in the audible range is supplied from 2
The signal is supplied to a human-powered AND circuit 33.

The output of the AND circuit 33 is supplied to a two-man OR circuit 36 via a switch 31 that is interlocked with the switch 23 shown in the second diagram.

On the other hand, the first frequency-divided signal supplied to the AND circuit 33 is supplied to a three-man powered AND circuit 35 together with another second frequency-divided signal having a relatively low frequency.

The remaining input terminals of the AND circuit 35 are connected to the -number output circuit 21.
(shown in the second diagram) is supplied to the output from the OR circuit 36.
supplied to

The output of the OR circuit 36 is supplied to the alarm 1 drive circuit 28 (shown in the second figure) as an alarm signal or identification signal.

The operation of the control circuit having such a configuration will be explained next.

The Q output of the FF 32 is determined by the switch 30, which is turned on and off by the rotation of the time plate 5 (shown in the first diagram).When the Q output is logic "0", it is considered as morning, and when it is logic "1", it is defined as morning. Assume it is afternoon.

Assume now that the Q output of the FF 32 is logic "0" and the time plate 5 is displaying '10' in the window 4 of the dial plate 3 (shown in the first diagram).

In this state, the user can confirm that the alarm occurred at 10 am.
It is not possible to determine whether the time is around 10 p.m. or around 10 p.m.

Then, the crown 2 (shown in the first figure) is rotated one turn in the right direction at the first pulled out position.

As a result, the switch 34 is turned ON once.

However, since the Q output of FF32 is logic "0",
No signal is output from the OR circuit 36, and no identification sound indicating that it is afternoon is generated.

This allows the user to know that the alarm occurrence time displayed on the window 4 (first illustration) is in the morning.

On the other hand, by operating the crown, "11" appears in the window 4.
” is displayed, but the display power of window 4, et12t+
Rotate crown 2 so that switch 3
0 is ONL, the Q output of FF32 changes to logic "1".

Thereby, in response to a rotational operation of the crown 2 (shown in the first diagram), the switch 34, which is turned ON, generates a short-time identification sound.

Similarly, the identification sound is generated in response to the rotation of the crown 2 until "12'" is displayed again on the window 4 of the dial 3.

The use of such an identification sound can notify the user that the set alarm generation time is in the afternoon.

Now, after setting the alarm occurrence time, when the time reaches the alarm occurrence time, the coincidence detection circuit 21 (second
According to the signal from the AND circuit 35, the first frequency-divided signal is modulated into the second frequency-divided signal and output as an alarm signal. (second illustration).

Although the details of the electronic alarm clock according to the present invention have been explained above based on the illustrated embodiments, the present invention is not limited to the illustrated embodiments, and various changes or improvements can be made. .

For example, in the embodiment, the alarm generation time is set in 5-minute increments, but it is also possible to set it in 10- or 15-minute increments.

As described above, the alarm electronic watch according to the present invention includes a display section that displays the alarm occurrence time in response to the operation of a setting switch that sets the alarm occurrence time, and
Since it is equipped with a memory circuit that stores the alarm delay time in predetermined time increments, the number on the display that displays the alarm occurrence time will be faster than when the alarm occurrence time is set in 1-minute increments, for example. can be made larger, making it easier to read the alarm occurrence time,
Along with this, it is possible to improve the operability of the crown etc. during setting, and it is also possible to simplify the circuit configuration such as a time counter, memory circuit, or -number output circuit for generating an alarm. , it is possible to fully achieve the intended purpose, and it has great effects in practice.

[Brief explanation of drawings]

FIG. 1 is an external view of an alarm electronic timepiece according to the present invention, and FIG.
FIG. 3 is a circuit diagram showing a system of an alarm electronic timepiece according to the present invention, and FIG. 3 is a circuit diagram showing a specific example of a control circuit of the alarm generating device shown in FIG. 2. 1... Exterior case, 2... Crown,
3...Dial board, 4...Window section, 5...
...Hour plate as a display part, 6...Separate plate as a display part, 7...Hour hand, 8...Minute hand,
15... Time counter, 18... Memory circuit, 21... Coincidence detection circuit, 22.23...
... Setting switch, 24, 25 ... Reset switch, 26 ... Alarm generating device, 27
...Control circuit, 32...Flip-flop circuit forming part of the control circuit.

Claims (1)

[Claims] 1 Using a time pulse as a reference for time measurement, the time is displayed by a hand and a dial, and a setting switch for setting the alarm occurrence time, and a display for displaying the alarm occurrence time set by the operation of the setting switch. an analog electronic watch comprising: a window formed on the dial plate through which the alarm occurrence time is displayed on the display section; and an alarm generating device that generates an alarm sound at the alarm occurrence time; a memory circuit that stores the alarm occurrence time each time the alarm occurs, and a time counter that measures time based on the time pulse;
a matching circuit that compares the memory content of the memory circuit with the content of the time counter, detects a match between the two, and outputs a signal for controlling the operation of the alarm generator; An alarm electronic timepiece comprising a counter that stores time at intervals of two minutes or more, and a minute counter of the time counter also measures time in the same time increments as the minute storage counter.