JPS6411919B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an analog watch with an alarm function whose hands serve both as a time function display and an alarm time setting display.

[Conventional technology and its issues]

An analog alarm clock described in Japanese Patent Application Laid-open No. 89787/1987 has been proposed as an analog display clock having an alarm function in which the hands serve both as a time display and an alarm time setting display.

The hands in the analog watch with an alarm function described in this bulletin consist of two hands, a minute hand and an hour hand, each moving in 1-minute intervals, and a time difference counter that calculates the difference between the alarm time and the current time, and a time difference counter that calculates the difference between the hand position and the current time. It is equipped with a display difference counter that calculates the difference, and a needle position counter that counts up and down in accordance with the position of the needle.

The method of setting the alarm time, the method of switching from alarm display to time display, and the role of the arithmetic circuit based on these configurations will be described below.

The alarm time is set by moving the hand to the alarm setting time, and at the same time, the same number of pulses corresponding to the difference between the current time and the alarm setting time is input to the time difference counter, display difference counter, and hand position counter. is calculated.

Returning the hands to the current time position from the alarm time setting function is performed by rotating the hands in the reverse direction until the calculation content of the display difference counter becomes zero. At this time, the hand position counter calculates zero when returning to the current time in order to follow the hand position.

For alarm notification, a time difference counter is counted down by an output signal from the frequency dividing circuit, and when the calculation content of the time difference counter becomes zero, an alarm sound is output from the alarm device.

However, in the analog watch with an alarm function described in this publication, if the watch is held in the alarm setting state for more than one minute, there will be a delay in the indication of the hands when returning from the alarm setting display to the time display. This is because the alarm is set by setting the hand to the alarm time as described above, and at the same time, the display difference counter calculates and holds the difference between the alarm setting time and the current time. If you return to the time display from the alarm setting display after more than 1 minute has passed in this state, the pointer will return to the current time based on the calculation contents of the display difference counter, so there will be a 1 minute gap between the pointer display and the current time. This will result in more delays. Therefore, a lag occurs between the pointer instruction time and the alarm notification time.

Furthermore, in the analog watch with an alarm function described in this publication, it is impossible to determine whether an alarm is set or not, which causes confusion for the user.

[Purpose of the invention]

When the above problems are solved and the pointer is returned to the current time from the alarm setting state, there is no time delay in the pointer instruction, there is no discrepancy between the pointer instruction time and the alarm notification time, and the alarm is still in the setting state. It is an object of the present invention to provide an analog clock with an alarm function that can determine whether the alarm function is in the non-setting state or not.

[Means to solve the problem]

In order to achieve the above object, the analog clock with an alarm function according to the present invention has the configuration described below.

a time reference source that generates a time reference signal; a frequency dividing circuit that divides the time reference signal of the time reference source into a time signal of a predetermined low frequency; first and second waveform conversion/drive circuits that receive the output signal of the control switching circuit; and first and second waveform conversion/drive circuits that are driven by the respective output signals of the first and second waveform conversion/drive circuits. 2 electricity-
a mechanical transducer, a second hand linked to a first gear train driven by the first electro-mechanical transducer;
The minute and hour hands are linked to a second wheel train driven by an electro-mechanical converter, and the output signal of the frequency dividing circuit is inputted to measure the second time of the current time and the output signal is sent to the second control switching circuit. A second clock circuit that outputs the output signal to the second hand clock circuit, a minute clock circuit that inputs the output signal of this second hand clock circuit to measure the minute time and hour time of the current time, and a second clock circuit that inputs the output signal of the second hand clock circuit to display the time. When switching to alarm setting display, the current time is 1 second to 30 seconds.
When it is seconds, calculate the reversing pulse of the same number of pulses as the time measurement content of the second clock circuit, and the second time of the current time is 31 seconds to 59 seconds.
In the case of seconds, a calculation is performed to set the second hand from the current time position to the zero second position by calculating the forward rotation pulse of the difference pulse number between the time measurement content of the second clock circuit and 60, and the output signal is set to the zero second position. When switching from the alarm setting display to the time display by inputting the output signals of the 0 position calculation circuit and the second clock circuit that output to the control switching circuit 1, the second clock will be displayed if the second clock circuit is measuring between 1 second and 30 seconds. Calculate the forward rotation pulse with the same number of pulses as the time measurement content of the circuit, and when the time measurement of the second timing circuit is between 31 seconds and 59 seconds, calculate the reversal pulse with the difference pulse number between the time measurement content of the second timing circuit and 60. a current time position calculation circuit A that performs calculations for returning the second hand from the zero second position to the current time position and outputs an output signal to the first control switching circuit; The alarm timing circuit measures the alarm setting time using the signal from the correction pulse generation circuit outputted through the alarm timing circuit, and the output signal and minutes of this alarm timing circuit are input, and the output signal of the clock time circuit is input to switch from the alarm setting display to the time display. At the hour and minute, calculate the counting difference between the timing contents of the clock time circuit and the timing contents of the alarm timing circuit, and if this counting difference is positive, a forward rotation pulse If the counting difference is negative, a reverse rotation pulse is output and the minute hand The current time position calculation circuit calculates the forward rotation or reverse rotation pulse for returning the hour hand from the alarm setting time position to the current time position and outputs the output signal to the second control switching circuit, and the output signal of the minute and clock circuit. When inputting the output signal of the alarm timing circuit and switching from the time display to the alarm setting display, calculate the count difference between the time count of the alarm time count circuit and the minute, and the count difference between the time count of the clock time circuit and if this count difference is positive. For example, if the pulse count difference for forward rotation is negative, a pulse for reverse rotation is output, and if the alarm is not set, the minute and hour hands are set to the 12:00 position, and if the alarm is set, the minute and hour hands are set to the alarm setting time position. A current time/alarm time/position computing circuit B consisting of an alarm time/position computing circuit that computes forward or reverse rotation pulses for setting and outputs an output signal to a second control switching circuit; and a minute/clock/hour circuit. A coincidence detection circuit inputs the time signal and the output signal of the alarm timing circuit, outputs a coincidence signal to the alarm device when the timing contents of the clock timing circuit and the timing contents of the alarm timing circuit match, and an alarm setting display. It is also equipped with a vibration display pulse generation circuit that outputs a signal to vibrate the second hand at the zero second position back and forth using the output signal of the alarm on/off memory circuit when the alarm is set. The second hand serves both as a display and alarm setting display, and the second hand also serves as a time display and alarm function display.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an external plan view showing an analog watch with an alarm function according to the present invention. The watch case 1 has an analog display mechanism 2 inside the watch case 1, and the watch case 1 has switches S ₁ 3 as external operating members.
It is equipped with ₂ and 4 switches. The analog display mechanism 2 includes a second hand 5, a minute hand 6, an hour hand 7, and a dial 8.

FIG. 2 is a block diagram showing the circuit configuration of an analog timepiece with an alarm function according to the present invention. The time reference source 9 consists of a crystal resonator, an oscillation circuit, etc.
A time reference signal having a frequency of approximately 32KHz or 4KHz is generated to the nth power of 2. The frequency dividing circuit 10 is
This circuit divides the time reference signal generated by the time reference source 9 into a time signal of a predetermined low frequency, and the output of the frequency divider circuit 10 is input to the second clock circuit 11 and the control switching circuit A12. The frequency signal in the middle of the frequency dividing circuit 10 is also input to the waveform conversion/drive circuit A13 and the waveform conversion/drive circuit B14, and is transmitted through the corresponding electromechanical converters A, B21, and 23. It is configured to drive the analog display mechanism 2. The second clock circuit 11 to which the output signal of the frequency dividing circuit 10 is inputted is a circuit that clocks 60 seconds, and its output is divided into minutes, a clock circuit 15, and a control switching circuit B.
16, the 0 position calculation circuit 17, and the current time position calculation circuit A18. The clock time circuit 15 clocks the minute time and the hour time when the output signal of the second clock circuit 11 is input, and clocks 12 hours. The input signal is input to the circuit 20. The waveform conversion/drive circuit A13 is a circuit that converts the output signal waveform of the frequency dividing circuit 10 to create a waveform that drives the electro-mechanical converter A21, and its output is used to convert the output signal waveform of the frequency dividing circuit 10 to the electro-mechanical converter A2.
1 is driven. The electro-mechanical converter A21 is composed of, for example, a step motor, converts electrical energy into mechanical energy, and performs forward and reverse rotational motion, and this rotational motion rotates the second hand 5, which is transmitted to the wheel train A22. . The waveform conversion/drive circuit B14 is a circuit that converts the output signal waveform of the frequency dividing circuit 10 to create a waveform for driving the electro-mechanical converter B23, and its output is used to convert the output signal waveform of the frequency dividing circuit 10 to the electro-mechanical converter B23.
is driven. The electro-mechanical converter B23 is composed of, for example, a step motor, converts electrical energy into mechanical energy, and performs forward and reverse rotational motion, and this rotational motion is transmitted to the wheel train B24 to control the minute hand 6 and hour hand 7. Rotate. The alarm timing circuit 25 is a circuit for timing the alarm setting time, and the alarm time is set by a signal from the correction pulse generation circuit 27, which is inputted from the switch S ₁ 3, which is an external operating member, and passed through the control circuit 26. The alarm on/off memory circuit 28 is a circuit that stores whether the alarm setting is on or off via the control circuit 26 that is input from the switch S ₂ 4, which is an external operating member. The vibration display pulse generation circuit 29 is a circuit that generates a signal that causes the second hand 5 to vibrate based on the output of the alarm on/off memory circuit 28 when the alarm function is displayed and the alarm setting is on. The alarm device 30 includes a sounding device such as an electromagnetic buzzer, an electromagnetic speaker, a piezoelectric buzzer, and a driving circuit thereof, and outputs an alarm sound. Although not shown in FIG. 2, clock pulses are input from the frequency dividing circuit 10 to each circuit and device to ensure the operation of each circuit and device and to stabilize the frequency.

Next, a method for adjusting the clock, a method for setting an alarm time, and the role of each arithmetic circuit will be explained.

The switch _S13 , which is an external operating member, is composed of a reuse, and displays the current time in the pushed position.
The analog display mechanism 2 displays the hours, minutes, and seconds of the current time. The time reference signal generated from the time reference source 9 is frequency-divided by the frequency dividing circuit 10, and becomes a signal of, for example, 1 Hz, which is passed through the control switching circuit A12.
An output signal input to the waveform conversion/drive circuit A13 and used to drive the converter is output at a rate of one pulse per second. Therefore electro-mechanical converter A2
1 is driven once every second, and the second hand 5 rotates clockwise at one-second intervals to display the second time. Frequency divider circuit 1
The 1 Hz output signal of 0 is also input to the second clock circuit 11, and this second clock circuit 11 clocks 60 seconds. The output signal of the second timing circuit 11 is output at 10 second intervals, 15 second intervals,
It is output at time intervals of 1 minute or more, such as 20 second intervals or 30 second intervals, and is input to the control switching circuit B16 and the minute and clock time circuits 15. The following will explain an example in which the output signal of the second timing circuit 11 is output at a rate of one pulse every 20 seconds. The drive output signal to the converter of the minute and time circuit 15 is output at a rate of one pulse every 20 seconds. Therefore, the electro-mechanical converter B23 is driven once every 20 seconds, and the minute hand 6 rotates clockwise at 20-second intervals to display the minute time. The hour hand 7 is further decelerated by the wheel train B24 and displays the hour. The clock circuit 15 measures 12 hours. That is, the second clock circuit 11 always measures the second time of the current time, and the minute clock circuit 15 always measures the minute time and hour time of the current time.

Figure 3 shows the second clock circuit 11 and the 0 position calculation circuit 17.
FIG. 3 is a waveform diagram showing the relationship between the second clock circuit 11 and the zero position calculation circuit 17. FIG. As shown in FIG. 3 1, when the second timing circuit 11 is counting 12 pulses from the zero second position, the 0 position calculating circuit 17 is calculating 12 pulses for reverse rotation as shown in FIG. 3 2. .
In FIG. 3, the calculation for reversal is shown in the negative direction. Next, as shown in FIG.
1 is counting 43 pulses, the 0 position calculation circuit 17 is calculating 17 pulses for forward rotation as shown in FIG. 3. In FIG. 3, calculations for normal rotation are shown in the positive direction. The 0 position calculation circuit 17 calculates the same number of pulses for reversing as the time measurement content of the second timing circuit 11 when the second hand position is from 1 second to 30 seconds. In other words, when the second hand position is between 31 seconds and 59 seconds, the second timing circuit 11
The difference pulse number between the time measurement contents and 60 is calculated for the forward rotation pulse. In other words, the 0 position calculation circuit 17 is
When switching from clock display to alarm setting display,
Arithmetic processing is always performed to set the second hand 5 to the zero second position.

FIG. 4 is a waveform diagram showing the relationship between the second timing circuit 11 and the current time position calculation circuit A18. Using this FIG. Explain. Fourth
As shown in FIG. 1, when the second timing circuit 11 measures 16 pulses from the zero second position, the current time position calculation circuit A18 calculates 16 pulses for forward rotation as shown in FIG. Next, as shown in FIG. 4, when the second clock circuit 11 measures 51 pulses, the current time position calculation circuit A18 calculates 9 pulses for reverse rotation, as shown in FIG. 4. In FIG. 4, as in FIG. 3, calculations for forward rotation are shown in the positive direction, and calculations for reverse rotation are shown in the negative direction. The current time position calculation circuit A18 is configured so that the second clock circuit 11 measures time from 1 second to
At 30 seconds, a forward rotation pulse with the same number of pulses as the time measurement content of the second timing circuit 11 is calculated, and the second timing circuit 11
When the time measurement is from 31 seconds to 59 seconds, the pulse for reversal is calculated as the difference in the number of pulses between the time measurement content of the second clock circuit 11 and 60. In other words, the current time position calculation circuit A18
When the alarm setting display is switched to the time display, the 0 position calculation circuit 17 performs calculation processing to return the second hand 5, which is at the zero second position, to the current time position.

To adjust the time in the time display, when the switch S ₁ 3 is pulled to the second position, the second hand 5 stops and the time can be adjusted. Minute hand 6 and hour hand 7 are switch S ₁
When switch S ₁ 3 is turned counterclockwise with S 3 in the two-step pulled state, it is advanced by the reverse gear train, and when it is rotated clockwise, it is retarded. When switch _S13 is returned to its original pressed position, frequency divider circuit 10 and second clock circuit 1
1 and 0 position calculation circuit 17, current time position calculation circuit A18, minute and clock time circuit 15, current time and alarm time position calculation circuit B19, and alarm time measurement circuit 25 are all reset. At the same time as this reset, the first pulse is outputted from the frequency dividing circuit 10 one second after the reset, and the second hand 5 advances by one second one second after the reset. Therefore, in the same way as the time adjustment method according to the time signal of a normal analog clock, when the second hand 5 is at the zero second position, pull the switch _S13 to the second position to stop the second hand 5 at the zero second position. If you set the minute hand 6 and hour hand 7 to the correct time using the gear train and return the switch _S13 to the original push-in position in time with the zero second of the time signal, the second hand 5 will advance one second after one second and then set the correct time. Carve.

The alarm time can be set in the alarm setting display by pulling the switch S ₂ 3 to the first step. When changing from the current time display to the alarm setting display, the 0 position calculation circuit 17 described using FIG. 3 performs calculation processing to return to the zero second position. , the 0 position calculation circuit 17 calculates the same number of pulses for reversing as the time measurement content of the second timing circuit 11,
When the current second time is between 31 seconds and 59 seconds, a forward rotation pulse of the difference pulse number between the time measurement contents of the second clock circuit 11 and 60 is calculated. In this manner, the zero position calculation circuit 17 receives a pulse for forward rotation or reverse rotation corresponding to the second hand position at the current time, and performs calculation to set the second hand from the second time at the current time to the zero second position. Based on the output signal of this 0 position calculation circuit 17, the control switching circuit A12
The power is transmitted to the waveform conversion/drive circuit A13, the electro-mechanical converter A21, and the wheel train A22,
The second hand 5 stops at the zero second position to display to the user that it is an alarm setting display. When the switch S13 is rotated counterclockwise with the switch _S13 pulled to the first step, a correction pulse for the alarm time is output from the correction pulse generation circuit 27 via the control circuit 26 at a rate of 1 minute advance per click, and the control is switched. The electro-mechanical converter B23 is driven through the circuit B16, advances the minute hand 6 and the hour hand 7 by one minute, and simultaneously activates the alarm timing circuit 25.
The clock will also advance by one minute. If you increase the rotation speed of switches S _{1 and} 3, each click will be 64Hz for 1 minute.
The minute hand 6 and the hour hand 7 move 64 times per second.
You can proceed minute by minute. Also, by rotating the switch _S13 clockwise, the minute hand 6 and hour hand 7 can be reversed at a rate of 1 minute delay per click, and similarly, if the rotation speed is increased, the clock can be reversed at a fast forward rate of 64 minutes per second. .

The current time and alarm time position calculation circuit B19 is
The time difference between the minutes of the current time and the time of the clock circuit 15 and the time of the alarm clock circuit 25 that measures the alarm setting time is calculated. That is, there is a current time position calculation circuit that performs calculations to return the minute hand 6 and hour hand 7 from the alarm setting time to the current time when switching from the alarm setting display to the time display, and when the alarm setting display is switched from the time display to the alarm setting display. an alarm time position calculation circuit that performs a calculation to set the minute hand 6 and hour hand 7 to the 12:00 position if the alarm is not set, and to set the minute hand 6 and hour hand 7 to the alarm setting time position if the alarm is set; A current time and alarm time position calculation circuit B19 is provided. The detailed calculation process of the current time and alarm time position calculation circuit B19 will be explained using FIG.

FIG. 5 shows the switching from the time display to the alarm setting display, the setting of the alarm time, the switching from the alarm setting display to the time display, the calling of the alarm time, and the minutes and minutes at these times in the analog watch with an alarm function of the present invention. FIG. 3 is an explanatory diagram showing timekeeping by a clock circuit and an alarm clock circuit, and calculations by a current time alarm time position calculation circuit B. FIG. To simplify the explanation, a case will be explained in which the second hand is generally at the zero second position. Although not shown in FIG. 5, as shown in the block diagram of FIG. 2, the second clock circuit always measures the second time of the current time, and the zero position calculation circuit 17 moves the second hand from the current time to the zero second position. The current time position calculation circuit A performs calculations to return the second hand from the zero second position to the current time. That is, as explained using FIG. 3, when the current second time is between 1 second and 31 seconds, the 0 position calculation circuit 17 calculates the same number of pulses for reversing as the time measurement content of the second clock circuit 11. However, when the current second time is between 31 seconds and 59 seconds, the second clock circuit 11
Calculate the difference in the number of pulses between the time measurement contents and 60, and set the second hand to the zero second position from the current time. Furthermore, as explained using FIG. 4, the current time position calculation circuit A1
8 calculates forward rotation pulses of the same number of pulses as the timing content of the second timing circuit 11 when the timing of the second timing circuit 11 is 1 second to 30 seconds, and when the timing of the second timing circuit 11 is 31 seconds to 30 seconds.
When the time is 59 seconds, a reversal pulse of the difference pulse number between the time measurement content of the second timing circuit 11 and 60 is calculated to return the second hand from the zero second position to the current time. Furthermore, as mentioned above, the following explanation uses the minute hand as an example of 20-second movement. Fifth
In the figure, the current time is shown at the top, the specific instructions for the analog display mechanism are shown below, the display mode shows whether the time is displayed or the alarm setting is shown, the minutes are shown below, and the time waveform diagram in the clock circuit is shown. Below that is a time measurement waveform diagram in the alarm timing circuit, below that is the current time, and the waveform of calculations in alarm time position calculation circuit B is divided into two stages, with the upper stage showing the current time position calculation circuit and the lower stage showing the alarm time position calculation, respectively. . The calculation contents of the current time position calculation circuit and the alarm time position calculation circuit in FIG. 5 are as follows:
Calculations for forward rotation are shown in the positive direction, and calculations for reverse rotation are shown in the negative direction.

FIG. 5a shows the moment when the switch _S1 is pulled out to the second position and the time is adjusted, and when the time is 0:00, the switch _S1 is returned to the pushed-in position. The analog display mechanism indicates the current time, 0:00, and the display mode is time. The minute clock circuit, alarm clock circuit, current time position calculation circuit, and alarm time position calculation circuit are reset and do not receive pulses. In this case, the minute clock time circuit is in a 12-hour system and returns to zero after 12 hours, so it is the same as if the alarm was set after 12 hours. Although not shown in FIG. 5, as explained using FIG. 2, the second clock circuit, the 0 position calculation circuit, and the current time position calculation circuit A are also reset at the same time.

Figure 5b shows that 15 minutes have passed and the time is 0:00.
Shows the status after 15 minutes. The analog display mechanism indicates the current time, 0:15, and the display mode is time. The clock circuit measures 45 pulses (15 x 60/20), which corresponds to 15 minutes. The alarm clock circuit is not performing time measurement, and the current time position calculation circuit is not performing calculation because the display mode is time. The alarm time position calculation circuit calculates the coefficient difference between 0 pulse and minute, which is the time measurement content of the alarm timing circuit, and 45 pulse, which is the time measurement content of the clock time circuit, and calculates the difference.
45 pulses (0-45) for reverse rotation, which corresponds to 15 minutes, are calculated.

FIG. 5c shows a state in which the switch _S1 is pulled down to the first step at 0:15, and the display mode is changed to alarm. In the analog display mechanism, the 45 pulses for reversal, which are the calculation contents of the alarm time position calculation circuit that calculates the time difference between the alarm time measurement circuit and the minute and clock time circuit explained using FIG. The electromechanical converter B is driven in reverse via the control switching circuit B to set the minute hand and hour hand to the 0:00 position. Furthermore, the second hand is controlled by the calculation of the 0 position calculation circuit explained using FIG.
It is stopped at the zero second position. In other words, when the second time of the current time is 1 second to 30 seconds, the 0 position calculation circuit calculates the same number of pulses for reversing as the time measurement content of the second clock circuit, and when the second time of the current time is 31 seconds to 59 seconds. In this case, the second hand is set from the current time position to the zero second position by calculating the forward rotation pulse of the difference pulse number between the time measurement content of the second clock circuit and 60. Although the second hand is at the zero second position in FIGS. 5a and 5b, it advances to the 1 second position after 1 second and to the 2 second position after 2 seconds.
On the other hand, in the alarm function display in Figure 5c,
The second hand remains stopped at the zero second position.
minute, the clock circuit clocks 45 pulses corresponding to the current time of 0:15 plus 15 minutes, and the alarm clock circuit does not clock yet. The current time position arithmetic circuit calculates the minutes, the time measurement contents of the clock time circuit 45
45 pulses (45-0) for normal rotation are calculated, which corresponds to a plus 15 minute time difference between the pulse and the 0 pulse, which is the timing content of the alarm timing circuit. The alarm time and position calculation circuit is not calculating because the display mode is alarm.

Next, the alarm time is set to 3:20, and the state when two minutes have passed and the current time is 0:17 is shown in FIG. 5d. When switch _S1 is pulled to the first step and rotated counterclockwise, a correction pulse for setting the minute and hour hands to the alarm time is output from the correction pulse generation circuit via the control circuit, and the analog display mechanism is set to 3:20. Set to . At the same time as the minute hand and hour hand move to the alarm time, the output of the correction pulse generation circuit causes the alarm time to reach 3:20.
600 pulses (220 x 60/20) corresponding to minutes are counted by the alarm timing circuit. Minutes, clock time circuit is 51 pulses (17 x 60/20) corresponding to the current time 0:17
time. The current time position calculation circuit measures minutes, 51 pulses of the clock time circuit, and time of the alarm time circuit.
Time difference with 600 pulses, that is, alarm time 3
Minus 3, which is the difference between 0:20 and the current time 0:17
549 pulses for reversal (51-600) corresponding to time 3 minutes
is being calculated. Since the display mode is alarm, the alarm position calculation circuit is not calculating.
In this state, when switch _S2 is pressed, the alarm setting is turned on, and the output from the vibration display pulse generation circuit is driven by the signal from the alarm on/off memory circuit to the electromechanical converter A via the control switching circuit A. , vibrate the second hand back and forth at the zero second position.

Next, the switch _S1 is returned to its original depressed position and the display mode is changed from alarm to time, as shown in FIG. 5e. 549 pulses for reverse rotation corresponding to minus 3 hours and 3 minutes, which is the calculation content of the current time position calculation circuit explained using Fig. 5d, are output from this current time position calculation circuit, and the minute hand and hour hand indicate the alarm setting time. It is driven in reverse from the 3:20 position, indicating the current time, 0:17. Minutes, the clock time circuit corresponds to 51 pulses corresponding to the current time 0:17, the alarm clock circuit corresponds to the alarm setting time 3:20
It clocks 600 pulses. The alarm time position calculation circuit calculates the time difference between the 600 pulses and minutes of the alarm time circuit and the 51 pulses of the clock time circuit, that is, the difference between the alarm time and the current time, which is +3.
549 pulses for forward rotation (600-51) equivalent to time 3 minutes
is being calculated. The current time position calculation circuit is not calculating because the display mode is time. The second hand returns to the current time from the zero second position by the calculation of the current time position calculation circuit A explained using FIG.
In other words, the current time position calculation circuit A calculates forward pulses of the same number of pulses as the time measurement contents of the second timing circuit when the second timing circuit is measuring from 1 second to 30 seconds, and when the second timing circuit is timing from 31 seconds to 30 seconds. When it is 59 seconds, calculate the pulse for reversal of the difference pulse number between the time of the second clock circuit and 60,
Return the second hand from the zero second position to the current second time.

When the time has passed and it reaches 2:00, the analog display mechanism shows the current time at 2:00, as shown in Figure 5f.
Indicates the hour 00 minutes. Minutes, the clock time circuit has 360 pulses (120 x 60/20) corresponding to the current time of 2:00.
The alarm timing circuit measures 600 pulses corresponding to the alarm setting time of 3:20. The alarm time position calculation circuit has a time measurement of 600 pulses in the alarm time circuit and a time measurement of 360 pulses in the minute clock time circuit.
Time difference with pulse, that is, alarm setting time 3
240 pulses for forward rotation (600-360) corresponding to the difference between the current time of 2:00 and 1 hour and 20 minutes
is being calculated. The current time position calculation circuit is not calculating because the display mode is time.

When this time is 2:00, switch _S1 is pulled down to the 1st step and the alarm time is called up.
Shown in Figure g. minutes, the clock time circuit is 2 o'clock which is the current time.
The alarm timing circuit measures 360 pulses corresponding to 00 minutes, and the alarm timing circuit corresponds to the alarm setting time of 3:20.
It clocks 600 pulses. The analog display mechanism uses 240 pulses for forward rotation, which is the calculation content of the alarm time position calculation circuit that calculates the difference between the alarm setting time and the current time, as explained using Figure 5 f, so that the minute hand and hour hand advance by 1 hour and 20 minutes. , indicates the alarm setting time of 3:20. The current time position calculation circuit is
minutes, the time difference between the 360 pulses of the clock circuit and the 600 pulses of the alarm clock circuit, that is, the alarm setting time of 3:20 and the current time of 2:00.
Reversal 240, which is equivalent to the difference between minutes and minus 1 hour 20 minutes.
Calculating pulse (360-600). The alarm time and position calculation circuit is not calculating because the display mode is alarm. The second hand is stopped at the zero second position by the output signal of the zero position calculation circuit explained using Figure 3, and since the alarm on/off memory circuit is in the on state, the second hand is stopped at the zero second position by the output signal of the vibration display pulse generation circuit. vibrate back and forth,
Displays that the alarm is set. In order to return to the current time from this alarm time calling state, in the same way as explained using Figure 5e, 240 pulses for reversing the current time position calculation circuit, ie minus 1 hour and 20 minutes Reverse the hour and minute hands to return them to the current time of 2:00. In other words, the difference of 240 pulses between the 360 pulses measured by the clock circuit and the 600 pulses measured by the alarm timing circuit is output from the current time and alarm time position calculation circuit B, and is sent to the electro-mechanical converter B via the switching control circuit B. The minute and hour hands are output to reverse the current time and return to the current time.

The time has passed and the alarm setting time is 3:20.
Figure 5h shows the state in which it has reached the final stage. When the clock circuit measures 600 pulses corresponding to the current time of 3:20, the coincidence detection circuit outputs a coincidence detection signal. When the alarm on/off memory circuit stores the on state, the alarm device outputs an alarm sound. The alarm sound will be output for 30 seconds to 1 minute, but if you press switch S ₂ , the alarm sound will stop.

As explained using Figures 3 and 4, when switching from time display to alarm setting display, the second hand has the same number of pulses as the second clock circuit if the current second time is between 1 second and 30 seconds. Calculate the reversal pulse of
When the current second time is between 31 seconds and 59 seconds, the second hand is always set to the zero second position by the calculation of the 4-position calculation circuit that calculates the forward rotation pulse of the difference pulse number between the clock of the second clock circuit and 60. . Furthermore, when switching from the alarm setting display to the time display, if the second timing circuit is measuring between 1 second and 30 seconds, a forward rotation pulse with the same number of pulses as the timing content of the second timing circuit is calculated, and 31 seconds to 59 seconds are calculated. When it is the second, the second hand at the zero second position is returned to the current time by the calculation of the current time position calculation circuit A which calculates the reversal pulse of the difference pulse number between the time measurement content of the second clock circuit and 60.

In the present invention, in both the time display and alarm setting display, the output signal of the frequency divider circuit is always input to the second clock circuit and the minute and clock time circuits via this second clock circuit, so that it is always displayed. The second time of the time is measured by the second time circuit, and the minute time and hour time of the current time are timed by the clock time circuit. 20 seconds timing circuit
The second interval output signal is also output to the control switching circuit B, and the minute and clock time circuit output signals are output to the current time, alarm time position calculation circuit B, and coincidence detection circuit.

The alarm timing circuit measures the alarm setting time based on a signal from the correction pulse generation circuit outputted via the control circuit by operating an external operating member when switching to the alarm setting display. The output signal of this alarm timing circuit is output to a coincidence detection circuit.

The current time and alarm time position calculation circuit B inputs the output signals from the minute and clock circuit and the alarm time measurement circuit, and is composed of an alarm time and position calculation circuit and a current time and position calculation circuit. The current time position calculation circuit calculates the minute difference between the time measurement contents of the clock time circuit and the time measurement contents of the alarm time measurement circuit, and if this count difference is positive, it will be used as a pulse for forward rotation, and if the count difference is negative, it will be used as a pulse for reverse rotation. A pulse is output to the control switching circuit B, and when the alarm setting display is switched to the time display, a calculation is performed to return the minute hand and hour hand from the alarm setting time to the current time. The alarm time position calculation circuit calculates the count difference between the time count contents of the alarm time count circuit and the minutes, and the count difference between the time count contents of the clock time circuit, and if the count difference is positive, it outputs a forward rotation pulse, and if the count difference is negative, it outputs a pulse for forward rotation. When the reverse pulse is output to control switching circuit B and the time display is switched to the alarm setting display, the minute hand and hour hand are set to the 12:00 position if the alarm is not set, and the minute hand and hour hand are set to the 12:00 position if the alarm is set. Performs the calculation to set the alarm setting time position. The output signals of the current time and alarm time position calculation circuit B are output to the control switching circuit B.

As described above, in the embodiment shown in FIG. 5, the switch _S1 is pulled down to the second step to correct the time, and when the time is set to 0:00 minutes, the clock time circuit, alarm time measurement circuit, current time position calculation circuit, alarm time position calculation circuit Although the example in which the circuits are reset has been described, the time may be corrected to, for example, 5:27 and these circuits may be reset. At this time, the minute clock circuit clocks 0:00 at 5:27, 0:01 at 5:28, and the instructions on the analog display mechanism, minutes, and the timing contents of the clock circuit are always 5
The difference of 27 minutes will be maintained.

This hour alarm timing circuit is also reset to 5:27, the user advances the alarm indication from the 5:27 instruction, and the alarm timing circuit measures the pulse corresponding to that.

To put it simply, the alarm can be set using a timer-like setting method, in which the alarm is set and the alarm sound is issued several hours and minutes after the time has been corrected and the circuit has been reset.

In the embodiment shown in FIG. 5, the case where the second hand 5 is always at the zero second position has been explained, but if the second hand 5 is at the 23 second position, for example, the minute and hour circuits shown in FIG.
46 pulses corresponding to 15 minutes 20 seconds, and the alarm time position calculation circuit for reversing corresponding to minus 15 minutes 20 seconds.
46 pulses are calculated.

In the embodiments shown in FIGS. 2 and 5, the minutes and clock circuit 15 and the alarm clock circuit 25 count every 20 seconds, so for example, if the user wants to set off the alarm at exactly 3:20 p.m. Then, while looking at the analog display mechanism 2, pull the switch S ₁ to 3 one step and turn the minute hand 6 and hour hand 7 to the 3:20 minute 20 second position.
If you think you have set the alarm to 3:20, the alarm will not go off at 3:20, but will go off at 3:20:20. In this case, the second hand 5 will be at the 20 second position instead of the zero second position, which may cause discomfort to the user. Therefore, a correction circuit may be provided in the alarm timing circuit 25 so that the alarm is sounded by rounding down 20 seconds and rounding up 40 seconds.

In yet another embodiment, the alarm correction pulses generated by the alarm set correction pulse generation circuit 27 may be a set of three pulses, and may be set in units of one minute at all times.

In the embodiment, a 12-hour alarm was described in which the minute clock circuit 15 and the alarm clock circuit 25 clocked 12 hours, but the minute clock circuit 15 and the alarm clock circuit 25 clocked 24 hours to create a 24-hour alarm clock. However, is it possible to implement the present invention? In this case, morning and afternoon may be distinguished by a colored display board that rotates once every 24 hours. You may also make the sound monitor sound "Po. Po" twice.

In the embodiment, a method has been described in which the time is adjusted by rotating the reverse wheel train and being adjusted independently of the electro-mechanical converter, but an electromagnetic adjustment method may also be used in the same way as with the alarm set. At this time, minutes, clock hour circuit 1
A correction pulse is also input from the correction pulse generation circuit 27 to the correction pulse generating circuit 27.

〔Effect of the invention〕

According to the present invention, in both the time display and alarm setting display, the output of the frequency divider circuit is always input to the minute clock circuit via the second clock circuit and the second clock circuit. The time function display is restored from the alarm function display through the calculation processing of the current time and alarm time position calculation circuit B, which calculates the time difference between the clock time circuit and the alarm time circuit, so an error between the current time and the hand position occurs. do not.
Therefore, there is no difference between the time indicated by the minute hand and the hour hand and the alarm notification time. Furthermore, by vibrating the second hand back and forth at the zero second position when the alarm function is displayed and the alarm is set, it is possible to determine whether the alarm is set or not.

[Brief explanation of drawings]

Figures 1 to 5 show embodiments of the present invention; Figure 1 is a plan view of the cased external appearance of an analog watch with an alarm function, Figure 2 is a block diagram of the watch system, and Figures 1 to 4 are Waveform diagrams showing the relationship between the second timing circuit and the 0 position calculation circuit, Fig. 4 1 to 4 are waveform diagrams showing the relationship between the second timing circuit and the current time position calculation circuit A, and Fig. 5 a to h are waveform diagrams showing the relationship between the second timing circuit and the current time position calculation circuit A. It is an explanatory diagram showing a method of setting an alarm time and a specific usage. 2...Analog display mechanism, 3...Switch S ₁ ,
4...Switch S ₂ , 5...Second hand, 6...Minute hand, 7
...Hour hand, 9...Time reference source, 10...Frequency dividing circuit, 11...Second clock circuit, 12...Control switching circuit A, 13...Waveform conversion/drive circuit A, 14...Waveform conversion/drive Circuit B, 15...minutes, clock hour circuit,
16... Control switching circuit B, 17... 0 position calculation circuit, 18... Current time position calculation circuit A, 19... Current time, alarm time position calculation circuit B, 20... Coincidence detection circuit, 21... Electricity - mechanical transducer A, 22
... Gear train A, 23 ... Electric-mechanical converter B, 24
... Gear train B, 25 ... Alarm timing circuit, 26 ...
...control circuit, 27...correction pulse generation circuit, 28
...Alarm on/off memory circuit, 29...Vibration pulse generation circuit, 30...Alarm device.

Claims (1)

[Claims] 1. A time reference source that generates a time reference signal, a frequency dividing circuit that divides the time reference signal of the time reference source into a time signal of a predetermined low frequency, and an output signal of the frequency dividing circuit and a first and second first and second waveform conversion/drive circuits that receive the output signals of the control switching circuits; and first and second waveform conversion/drive circuits that are driven by respective output signals of the first and second waveform conversion/drive circuits. a second electro-mechanical converter, a second hand coupled to a first gear train driven by the first electro-mechanical converter; a second hand driven by the second electro-mechanical converter; a second clock circuit that inputs the output signal of the frequency dividing circuit to measure the current second time and outputs an output signal to the second control switching circuit; The minute and clock circuit inputs the output signal of the clock circuit to measure the minute and hour of the current time, and the current time when the output signal of the second clock circuit is input and the time display is switched to the alarm setting display. When the current second time is between 1 second and 30 seconds, a reversing pulse with the same number of pulses as the time measurement content of the second clock circuit is calculated, and when the current second time is between 31 seconds and 59 seconds, the second clock circuit calculates the same number of pulses as the time measurement content of the second clock circuit. A calculation is performed to set the second hand from the current time position to the zero second position by calculating a forward rotation pulse of the difference pulse number between the content and 60, and an output signal is output to the first control switching circuit. When switching from alarm setting display to time display by inputting the output signal of the 0 position calculation circuit and the second timing circuit, if the second timing circuit measures 1 second to 30 seconds, the timing content of the second timing circuit changes. By calculating the same number of pulses for forward rotation as the number of pulses, and when the time measurement of the second timing circuit is between 31 seconds and 59 seconds, calculating the pulse number for reverse rotation of the difference pulse number between the time measurement content of the second timing circuit and 60. a current time position calculation circuit A that performs calculations for returning the second hand from the zero second position to the current time position and outputs an output signal to the first control switching circuit; An alarm clock circuit that clocks the alarm setting time by the signal of the correction pulse generation circuit outputted through the alarm clock circuit, and an alarm clock circuit that clocks the alarm setting time by the signal of the correction pulse generation circuit outputted through the alarm clock circuit; When switching to the above minute, the counting difference between the timing contents of the clock time circuit and the timing contents of the alarm timing circuit is calculated, and if the counting difference is positive, a forward rotation pulse is generated.If the counting difference is negative, a reverse rotation pulse is generated. a current time position calculation circuit that calculates a forward or reverse rotation pulse for returning the minute hand and hour hand from the alarm setting time position to the current time position, and outputs an output signal to the second control switching circuit; When the output signal of the minute clock circuit and the output signal of the alarm clock circuit are input and the time display is switched to the alarm setting display, the timing contents of the alarm clock circuit and the clock contents of the minute clock circuit are different. Calculate the count difference, and if the count difference is positive, output a pulse for forward rotation. If the count difference is negative, output a pulse for reverse rotation. If the alarm is not set, set the minute and hour hands to the 12:00 position. and an alarm time position calculation circuit that calculates a forward rotation or reverse rotation pulse for setting the minute hand and hour hand to the alarm setting time position when in the alarm setting state, and outputs an output signal to the second control switching circuit. The output signal of the minute and clock circuit and the output signal of the alarm clock circuit are inputted to the time and alarm time position calculation circuit B, and the minutes and clock contents of the clock and clock circuit and the clock contents of the alarm clock circuit are calculated. a coincidence detection circuit that outputs a coincidence signal to the alarm device when a coincidence occurs, and a signal that causes the second hand at the zero second position to vibrate back and forth by the output signal of the alarm on-off memory circuit when the alarm setting is displayed and the alarm setting state is set. and a vibration display pulse generation circuit that outputs a vibration display pulse, and the minute hand and hour hand are used for both a time display and an alarm setting display, and the second hand is used for a time display and an alarm function display by operating the external operation member. Analog clock with alarm function.