JPS6210719Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to the improvement of an electronic analog display clock with an alarm function, and in particular, when the current time and alarm time are displayed selectively or simultaneously, it is possible to change the display form of the current time and alarm time. This clarifies the distinction between the two times.

Conventionally, clocks have been developed that display the time in an analog manner by using a large number of analog display segments arranged radially around the circumference, without using a mechanical gear train or hands. . Compared to conventional mechanical time displays, these electronic analog time displays have a longer lifespan as they have no moving parts, and compared to digital display methods, the remaining time and elapsed time are more intuitive. It has the advantage of being easy to understand.

Incidentally, in recent years, these electronic analog display clocks are also being added with an alarm function or a timer function, since they have the characteristic of being easy to understand the remaining time and elapsed time.
When such functions are added, it becomes necessary to display the current time and additional functions such as an alarm and a timer on one display section. In this case, a method is used to switch between displaying the current time, alarm time, and timer time on one display, but since both times have hours and minutes and are displayed in almost the same format, the user cannot tell which time is currently displayed. I couldn't tell if it was displayed or not. In the case of a digital display, a display element is often provided on the display to show which display is currently being displayed, but the entire display surface is covered with a group of display segments that display the time. This method cannot be used for analog display electronic watches, and some kind of improvement has been required.

The present invention seeks to solve the above-mentioned problems in the conventional technology, and its purpose is to make it possible to more clearly distinguish the current time display from the alarm and timer time displays in an analog display electronic watch with alarm and timer functions.

In order to achieve the above object, the present invention divides the display segment group into at least two parts in the radial direction, and when displaying one of the current time, alarm time, and timer time, each of the radially divided displays A time display signal is supplied to all of the segment groups to display the time, and when the other time is displayed, first at least one of each display segment group divided in the radial direction is displayed.
The time display signal supplied to the display segment group is made conductive, blocked or interrupted, and then the time display signal supplied to the display segment group adjacent to the display segment group is sequentially made conductive, blocked or interrupted to display the time. , is characterized by a clear distinction between the two times.

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a segment layout diagram of an electronic analog display clock with an alarm according to an embodiment of the present invention. In this embodiment, when displaying the current time, the necessary display segments are always lit, and when displaying the alarm time in the alarm set state, the necessary display segments are turned on sequentially from the inner circumferential side to the outer circumferential side. When the alarm is turned on and the alarm time is displayed in a state where the alarm is not set, the necessary display segments are sequentially turned off from the outer circumferential side toward the inner circumferential side.

In FIG. 1, on the display surface 2, 60 display segment groups are arranged at equal intervals along the circumferential direction. The display segment group 4 is divided into four parts in the order of 4a, 4b, 4c, and 4d from the inner peripheral side in the radial direction.

FIG. 2 is a display format diagram when only the current time is displayed using the display segment group of FIG. 1.
4a-50, 4b-50 and 4c- as hour hands
50 lights up and the minute hand is 4a-10, 4b-1
0, 4c-10 and 4d-10 are lit. This shows that the current time is 10:10.

Figures 3a to 3d show display formats when the alarm time is displayed in the alarm set state.

First, as shown in FIG. 3a, display segments 4a-45 as the hour hand and display segments 4a-60 and 4b-60 as the minute hand are simultaneously lit.
Next, as shown in FIG. 3b, in addition to the display of FIG. 3a, display segments 4b-45 and 4c-60 are turned on, and as shown in FIG.
5. Turn on 4d-60. After this, Figure 3 d
All display segments are turned off as shown in FIG.
-45, 4a-60 and 4b-60 are turned on simultaneously.

Thereafter, the above-described operation is repeated, thereby indicating that the alarm time is 9 o'clock.

Figures 4a to 4d show display formats when the alarm time is displayed in the alarm non-set state.

First, as shown in FIG. 4a, display segments 4a-45, 4b-45 and 4c-4 as hour hands.
5 lights up and displays segment 4a- as a minute hand.
60, 4b-60, 4c-60 and 4d-60
is lit. Thereafter, as shown in FIG. 4b, display segments 4c-45 and 4d-60
is turned off, and then display segments 4b-45 and 4c-60 are turned off, as shown in FIG. 4c. Further, as shown in FIG. 4d, remaining display segments 4a-45, 4a-60 and 4
After turning off all b-60 lights, turn on Figure 4a again.
As shown, 4a-45, 4b-45, 4c-
45, 4a-60, 4b-60, 4c-60, 4
d-60 is turned on at the same time, and the above-mentioned operation is repeated. In this way, it is displayed that the alarm time has been set at 9 o'clock.

FIGS. 5a to 5d show display format diagrams when the current time and alarm time are displayed simultaneously in the alarm set state.

As the current time display, display segments 4a-50, 4b-50, 4c-50, 4a as in FIG.
-10, 4b-10, 4c-10 and 4d-1
0 is lit constantly, indicating that the current time is 10:10.

As an alarm time display, first turn on 4a-45, 4a-60, and 4b-60 in the same way as in Fig. 3 a to d, and then turn on 4b-45, 4c-60, and 4 in turn.
c-45 and 4d-60 light up. Thereafter, all display segments are turned off, display segments 4a-45, 4a-60, and 4b-60 are simultaneously turned on again, and the above-described operations are repeated.

In this way, it is shown that the alarm time is set at 9 o'clock.

FIGS. 6a to 6d show display format diagrams when the current time and alarm time are displayed simultaneously in the alarm non-set state.

As the current time display, similarly to FIG. 2, display segments 4a-50, 4b-50, 4c-50, 4
a-10, 4b-10, 4c-10, 4d-10
is always lit. As an alarm time display, first display segments 4a-45, 4b-45, 4c-45, 4a
-60, 4b-60, 4c-60, 4d-60, and then 4c-45, 4d-60, 4
Turn off b-45 and 4c-60, and finally 4a-
45, 4a-60 and 4b-60 are turned off. Then, as shown in FIG. 6a, all the display segments that have been lit until now are lit again, and the above-described operations are repeated.

In this way, it is shown that the current time is 10:10 and the alarm time is set at 9:00.

FIG. 7 is a circuit diagram of an embodiment of the present invention for realizing the above operation.

10 is a current time signal generation circuit that generates a current time signal, and includes a reference signal generator 12, a frequency dividing circuit 14,
It consists of a minute counter 16 that counts the minutes of the current time, and an hour counter 18 that counts the hours of the current time. 20 is an alarm circuit that generates a notification sound at a preset alarm time; an alarm minute memory 22 that sets and stores the minute of the alarm time; and an alarm hour memory 2 that stores and sets the hour of the alarm time.
4. Alarm time signal from alarm minute memory 22 and alarm hour memory 24 and minute counter 16
and a matching circuit 26 that compares the current time signal from the hour counter 18, a notification circuit 28 that generates a notification sound based on the output from the matching circuit 26, an alarm set/non-set switch 30, and an AND gate 3.
2.

The time signal conversion circuit 34 converts the current time signal from the minute counter 16 and hour counter 18 and the alarm time signal from the alarm minute memory 22 and alarm hour memory 24 into display segment groups 4a and 4.
This is a circuit that converts the necessary display segments of b, 4c, and 4d into a time display signal to display the time, and includes an hour decoder 36 and a minute decoder 38.
and an alarm decoder 43 consisting of an alarm time decoder and an alarm minute decoder 42. Of these, the hour decoder 36 converts the hour and time signal input from the hour counter 18 into an hour and time display signal, and outputs it through output lines 36a and 3.
6b and 36c, and the minute decoder 38 converts the minute time signal input from the minute counter 20 into a minute time display signal and outputs it to output lines 38a, 38b, 38c.
and output to 38d. Similarly, the alarm decoder 40 converts the alarm time signal from the alarm memory 24 into an alarm time display signal and outputs it to output lines 40a, 40b, and 40c. The minute time signal is converted into an alarm minute time display signal and output to output lines 42a, 42b, 42c and 42d.

The time and time signals obtained on the output lines 36a, 36b, 36c are sent to AND gate groups 44a, 44, respectively.
b, 44c, output lines 38a, 38b, 3
The minute time signals obtained at 8c and 38d are input to AND gate groups 46a, 46b, 46c and 46d, respectively. Similarly, output lines 40a, 40
The alarm time signals obtained at terminals b and 40c are input to AND gate groups 48a, 48b and 48c, respectively, and output lines 42a, 42b, 42c and 42
The alarm minute time signals obtained at d are output from AND gate groups 50a, 50b, 50c and 50, respectively.
Enter in d. And gate group 44a, 4
4b, 44c, 46a, 46b, 46c and 4
The output of the OR gate 52 is also input to 6d, and the AND gate group 4 forming the AND circuit 51 is inputted to 6d.
8a, 48b, 48c, 500a, 50b, 50
The output of the OR gate 54 is also input to c and 50d. Signals from contacts 56a and 56b of an external switch 56 for display switching are input to the OR gate 52, and signals from contacts 56c and 56b of the external switch 56 are input to the OR gate 54. AND gate 48a, 50a
and 50b also has the output of the shift register 58.
Q ₁ signal is input and AND gates 48b, 50
The signal of the output Q ₂ of the shift register 58 is input to c, and the signal of the output Q ₃ of the shift register 58 is input to the AND gates 48c and 50d. This shift register 58 receives the signal A from the alarm set/unset switch 30, the signal B via the inverter 60, and the constant period signal from the frequency divider circuit 14. When the signal A is H,
Outputs Q ₁ , Q ₂ , Q ₃ are (H, L, L), (H, H,
L), (H, H, H), (L, L, L), (H, L,
L)..., and when signal B is H, (H, H, H), (H, H, L), (H, L, L),
It is configured to change sequentially (L, L, L), (H, H, H), . . .

On the other hand, the AND gates 44a, 46a, 48a,
The output signal of 50a is input to an OR gate 62, and the output signals of AND gates 44b, 46b, 48b, and 50b are input to an OR gate 64. Similarly, the output signals of the AND gates 44c, 46c, 48c, and 50c are input to the OR gate 66, and the AND gate 4
The output signals of 6d and 50d are input to an OR gate 68. The output signals of the OR gates 62, 64, 66, and 68 are input to the display segment groups 4a, 4b, 4c, and 4d via the driver 70, respectively.
The AND gates 44, 46, 48, 50, OR gates 52, 54, shift register 58, inverter 60, and OR gates 62, 64, 66, 68 constituting the OR gate group 61 convert the time display signal from the time signal conversion circuit 34. A display selection circuit 72 is configured to select a necessary time display signal from among the time display signals and change the display format for each time display signal.

The operation of this circuit will be explained below.

When the contact piece 56d of the external switch 56 is brought into contact with the contact point 56a, the output signal of the OR gate 52 becomes H, thereby causing the AND gate groups 44a, 44
Only b, 44c, 46a, 46b, 46c, and 46d open. As a result, the current time signals from the hour decoder 36 and the minute decoder 38 are output to the AND gate group 4.
4, 48, display segment group 4 via OR gates 62, 64, 66, 68 and driver 70
Input to a, 4b, 4c, 4d. Therefore, as shown in FIG. 2, the current time is displayed on the display surface 2 using display segment groups 4a, 4b, 4c, and 4d.

When the contact piece 56d of the external switch 56 is brought into contact with the contact point 56c, the output signal of the OR gate 54 becomes H. In this case, the AND gate group 44,
46 is closed, AND gate group 48a, 48b, 4
An H signal is input to each of 8c, 50a, 50b, 50c and 50d.

In this state, when the alarm set/unset switch 30 is closed and the alarm is in the set state, the signal A input to the shift register 58 becomes H. As a result, the signals of the outputs Q ₁ , Q ₂ , Q ₃ of the shift register 58 are (H, L, L), (H, H, L), (H, H,
H), (L, L, L), (H, L, L), etc. Therefore, the output Q ₁ of shift register 58
When only the signal becomes H, the AND gate 48a,
Only 50a and 50b are open, and output lines 40a,
The signals generated at 42a and 42b are respectively
It is input to the display segment groups 4a, 4b via AND gates 48a, 50a and 50b, OR gate groups 62, 64, and driver 70. As a result, as shown in FIG. 3a, display segment groups 4a, 4
The alarm time is displayed at b.

After that, when the signals of outputs Q ₁ and Q ₂ become H, AND gates 48b and 5
0c opens. Therefore, newly output lines 40b, 4
The alarm time signal obtained at 2c is inputted to display segment groups 4b and 4c via AND gates 48b and 50c, OR gates 64 and 66, and driver 70. As a result, as shown in FIG. 3b, the alarm time is displayed in the display segment groups 4a, 4b, and 4c.

After this, when the signals of Q ₁ , Q ₂ , and Q ₃ all become H, the AND gate 4 is activated in addition to the above state.
8c and 50d open. Therefore, a new output line 4
The alarm time signals obtained at 0c and 42d are sent to AND gates 48c and 50d, and OR gates 66 and 6.
8. Display segment group 4 via driver 70
Input to c, 4d. As a result, as shown in FIG. 3c, display segment groups 4a, 4b, 4c, 4d
The alarm time will be displayed.

After this, the signals of outputs Q ₁ , Q ₂ , and Q ₃ all become L.
Then, the AND gates 48, 50 are all closed, and as a result, all the display segments are turned off, as shown in FIG. 3d.

After this, when the signal of the output _Q1 becomes H again, as shown in FIG. 3a, the display segment groups 4a, 4
The alarm time is displayed only in b, and the above-mentioned operation is repeated thereafter.

When the alarm set/unset switch 30 is open and the alarm is in the unset state,
The signal B input to the shift register 58 becomes H. As a result, the output Q ₁ of the shift register 58,
The signals of Q ₂ and Q ₃ are (H, H,
H), (H, H, L), (H, L, L), (L, L,
L), (H, H, H), etc. Therefore, when the signals Q ₁ , Q ₂ , and Q ₃ of the shift register 58 all become H, the alarm time display signal is supplied to all of the display segment groups 4a, 4b, 4c, and 4d, as described above. As shown in FIG. 4a, the time is displayed using display segment groups 4a, 4b, 4c, and 4d.

After this, when only the signals of outputs Q ₁ and Q ₂ become H, the display segment groups 4a and 4
The alarm time display signal is supplied only to display segment group 4b and 4c, as shown in FIG. 4b.
The alarm time is displayed using only a, 4b, and 4c.

Furthermore, after this, only the signal of output _Q1 becomes H, and as mentioned earlier, the display segment groups 4a and 4
The alarm time display signal is supplied only to the fourth
As shown in Figure c, the alarm time is displayed using only display segment groups 4a and 4b.

Then, when all the output signals Q ₁ , Q ₂ , and Q ₃ become L, the AND gate groups 48 and 50 are all closed, and the display segment groups 4 a , 4 b , 4 c , 4
The alarm time signal is no longer supplied to d. As a result, as shown in FIG. 4d, display segment group 4
A, 4b, 4c, and 4d are all turned off.

After this, all the signals of the outputs Q ₁ , Q ₂ , and Q ₃ become H again, and the alarm time is displayed on the display segment groups 4a, 4b, 4c, and 4d as shown in FIG. 4a as before. Thereafter, the above-mentioned operation is repeated.

When the contact piece 56d of the external switch 56 is brought into contact with the contact point 56b, the signals of the OR gates 52 and 54 both become H, the AND gate groups 44 and 46 become open, and the H signal is applied to the AND gate groups 48 and 50. enters. When the alarm is in the set state, the alarm time is lit sequentially from the inner display segment group 4a, 4b to the outer display segment group, as in FIGS. 3a to 3d. At the same time, AND gate group 4
4 and 46 are open, and the current time is always lit using the display segment groups 4a, 4b, 4c, and 4d as in FIG. 2, so the alarm time and current time are shown in FIGS. 5 a to d. They are displayed simultaneously in a display format like this.

When the alarm is in the non-set state, the alarm time is sequentially turned off from the display segment groups 4c and 4d on the outer circumferential side to the display segment group on the inner circumferential side, as in FIGS. 4a to 4d. Also, as before, the current time is displayed in the display segment groups 4a, 4b, 4.
Since the alarm clocks c and 4d are always lit, the alarm time and the current time are simultaneously displayed in the display form shown in FIGS. 6a to 6d.

According to this embodiment, the current time is always lit using the display segment groups 4a, 4b, 4c, and 4d, and the alarm time is displayed from the inner display segment group to the outer circumference when the alarm is set. Alarm time is displayed by sequentially lighting display segment groups toward the center, or by sequentially extinguishing display segment groups from the outer display segment group toward the inner circumference when the alarm is not set. Therefore, the user can more clearly identify and display the alarm time and the current time. Further, in this embodiment, since the display format of the alarm time is different depending on whether the alarm is set or not, it is possible to identify whether the alarm is set or not. Furthermore, in this embodiment, the display segments are lit so that the alarm time is always displayed with different lengths of the hour hand that displays the hour and the minute hand that displays the minute time.
The alarm time can always be read visually.

In this embodiment, the display form of the alarm time is changed depending on whether the alarm is set or not, but this is not the gist of the present invention, and implementation without changing the display form is also possible.

Furthermore, in this embodiment, a watch with an alarm function that generates a notification sound at a preset time has been described, but it can also be used for a watch with a timer function that controls the power supply of other external devices at a preset time. It is also possible to more clearly distinguish between the current time and the timer time.

Furthermore, in this embodiment, the alarm time display hand is displayed as if it were expanding or contracting by successively conducting or blocking the alarm time display signal supplied to each display segment group. It is also possible to sequentially intermittent the alarm time display signal to sequentially blink each display segment group displaying the alarm time display hand to distinguish it from the current time.

As described above, according to the present invention, in an electronic analog display clock that switches or simultaneously displays alarm time and current time, in the case of one time display, a time display signal is sent to all display segment groups divided in each radial direction. In the case of the other time display, the time display signals supplied to each display segment group necessary for display are sequentially controlled, so that the display formats of both times are different. By setting the time, the current time and the alarm time can be more clearly distinguished.

[Brief explanation of the drawing]

FIG. 1 is a layout diagram of display segments according to an embodiment of the present invention, FIG. 2 is a display configuration diagram when the current time is displayed in an embodiment of the present invention, and FIG.
Figures a to d are display format diagrams when the alarm time is displayed when the alarm is set in an embodiment of the present invention, and Figures 4 a to d are display format diagrams when the alarm time is displayed when the alarm is not set in an embodiment of the present invention. 5A to 5D are display format diagrams when the alarm time and current time are simultaneously displayed when setting an alarm in an embodiment of the present invention, and FIGS. 6A to 6D are display format diagrams when the FIG. 7 is a circuit diagram of an embodiment of the present invention in which the alarm time and current time are displayed simultaneously when the alarm is not set. 4a, 4b, 4c, 4d...Display segment group, 10...Current time signal generation circuit, 20...Alarm circuit, 30...Alarm set/non-set switch, 34...Time signal conversion circuit, 56...External switch , 72...display selection circuit.

Claims (1)

[Claims for Utility Model Registration] A reference signal generator that generates a reference signal, a frequency dividing circuit that divides the frequency of this reference signal, and a minute counter that receives the output signal from this frequency dividing circuit and counts the minutes of time. an hour counter that counts the hours of the time in response to a carry signal from the minute counter; an alarm minute memory that counts the minutes of the alarm time; an alarm hour memory that counts the hours of the alarm time; a matching circuit that outputs a matching signal when the alarm time stored in the memory and the alarm minute memory matches the current time counted by the hour counter and the minute counter; and a matching circuit that outputs a matching signal to generate an alarm sound. an alarm circuit that generates an alarm, an alarm set/non-set switch, an AND gate connected between the notification circuit and the coincidence circuit, and supplies a coincidence signal to the alarm circuit only when the alarm set/non-set switch is set. an analog display section consisting of a plurality of display segment groups arranged radially on a circumference at the center of a concentric circle and divided into at least two in a radial direction; and a display on the analog display section based on time signals from the counter and the minute counter. a current time decoder that generates a signal for lighting a necessary segment at a position to be displayed after the segment group to an output terminal provided corresponding to the segment group divided in the radial direction; and the alarm minute memory and alarm time memory. alarm for generating a signal to the output terminal provided corresponding to the segment group divided in the radial direction to light up the required segment at the position to be displayed among the display segment group of the analog display section by the output signal from the analog display section. An electronic analog with alarm having a decoder, a group of OR gates that superimpose output signals from the alarm decoder and the current time decoder, and a driver that amplifies the output signal from the OR gate group and supplies it to the analog display section. In the display clock, the alarm set/non-set switch is connected to the switching direction input terminal, and the frequency division signal from the frequency division circuit is input to the clock input terminal,
After increasing the number of terminals that output lighting signals in the order from the first output terminal to the final output terminal among the plurality of output terminals by setting or non-setting the alarm set/non-set switch,
Either repeat the series of operations to simultaneously eliminate the lighting signals of all output terminals, or first output the lighting signals to all output terminals, and reduce the number of terminals that output the lighting signals in order from the final output terminal to the first output terminal. A shift register that repeats the operation of turning on and off completely, and is connected between the alarm decoder and the OR gate group, each output terminal from the alarm decoder is connected to one input terminal, and each output terminal is connected to the other input terminal. an AND circuit comprising a plurality of AND gates connected to respective output terminals from the shift register, and supplying an output signal from the alarm decoder to the driver only when a lighting signal is input to the other input terminal; An electronic analog display clock with an alarm, which is characterized by: