JPS628160B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electro-optical display type electronic timepiece equipped with an alarm device.

In recent years, so-called electro-optical display type electronic watches, which are equipped with a quartz crystal oscillator as a time standard and display the time using an electro-optical display device such as a liquid crystal display device, have rapidly become popular. In this electro-optical display type electronic timepiece, various additional functions can be realized by the configuration of the electronic circuit.
In addition to the standard function of displaying the current time and calendar, so-called multi-function electronic watches have also been proposed, which are equipped with a plurality of additional functions such as an alarm function.

However, in the above-mentioned multi-function electronic clock, there are a large number of items that need to be corrected, and especially for the alarm function, the operation of the alarm device can also be selectively set between ON and OFF as necessary. Therefore, we need to make all operations related to these modifications and alarm ON/OFF selection settings simple and easy to understand, and also minimize the number of external operation switches provided for this purpose. There is a need to reduce the complexity of the watch module and exterior structure.

An object of the present invention is to provide an electro-optical display type electronic timepiece with an alarm device in which all external operations are easy to understand and the number of required external operation switches is minimized.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a plan view showing the appearance of an electro-optical display electronic timepiece with an alarm device and a time adjustment device according to an embodiment of the present invention. _S1 ,
It has a modification mode selection switch S ₂ , a modification signal input switch S ₃ , and a lamp lighting switch S ₄ . Further, FIG. 1 shows a case where the watch is in a time display state in the normal mode described later. In this state, the liquid crystal display device 1 displays the time such as hours, minutes, seconds, etc., and turns on the alarm. ~ Displays information to identify the OFF state.

The correction signal input switch _S3 also serves as a display changeover switch for selectively switching between a time display state and a calendar display state in the normal mode.

Next, FIG. 2 is a plan view showing the display state of the liquid crystal display device 1 when the watch of this example is switched to the calendar display state in the normal mode, and FIGS. FIG. 3 is a plan view showing each display state regarding the first alarm of the clock.

Furthermore, FIG. 4 is a block diagram showing the circuit configuration of the timepiece of this example. Reference numeral 2 indicates a crystal oscillation circuit, 3 indicates a frequency dividing circuit, and 4 indicates seconds, minutes, and clocks provided as timekeeping means for counting the current time. It is a time-based counter consisting of hour, day, day, and month counters. Further, the clock of this example is configured to be able to store two alarm times, and the first alarm memory 5 and the second alarm memory 6 are configured with minute and hour counters, respectively.

The output of the first alarm memory 5 is inputted to the first coincidence detection circuit 7 together with the output of the minute and hour counters of the time system counter 4, and when the contents of both coincide, an alarm is generated by the buzzer drive circuit 11. It is configured to drive a buzzer 12 provided as an element. Further, the operations of the second alarm memory 6 and the second coincidence detection circuit 8 are also similar to those described above. Furthermore, the outputs of the time system counter 4 and the first and second alarm memories 5 and 6 are also connected to a display control circuit 9, and are input to a decoder/driver circuit 10 through selection control by the control circuit 9. and is configured to drive the liquid crystal display device 1.

On the other hand, the aforementioned function mode selection switch S ₁ is connected to the function selection shift register 1 via the differentiating circuit 13.
4, and the output side of each stage of the shift register 14 is connected to AND circuits 15 and 2, respectively.
3, 16 and 32, 17 and 36 as shown. Further, the output side of each stage of the shift register 14 is connected to the display control circuit 9.
The display is also input to the shift register 14, and the display is switched according to the function selected by the shift register 14.

Furthermore, the correction mode selection switch S ₂ is connected to the other input side of the AND circuits 15, 16, 17 via the differentiating circuit 18, and the output sides of the AND circuits 15, 16, 17 are connected to the respective time points. It is connected to the input side of the shift register 19 for selecting a correction object, the shift register 20 for selecting a first alarm time correction object, and the shift register 21 for selecting a second alarm time correction object. The output side of each stage of the time correction target selection shift register 19 is connected to the input side of an AND circuit 23 in the first stage, and to an AND circuit constituting the time correction signal input gate group 24 in the second and subsequent stages. They are connected to the input sides of 25 to 30, respectively. Similarly, the first and second alarm time correction target selection shift registers 20 and 21
The output side of each stage is connected to the input side of AND circuits 32, 36 for the first stage, and the first and second alarm time correction signal input gate groups 33, 37 for the second stage and subsequent stages. are connected to the input sides of AND circuits 34 to 35 and 38 to 39, respectively. The states of the three shift registers 19, 20, and 21 described above are also given to the display control circuit 9 as correction target selection signals, and which correction target is selected is determined by the flashing of the corresponding display element. It is structured so as to make it clear.

Next, in the normal mode, the correction signal input switch _S3 , which also has a function for switching between the time display state and the calendar display state, is connected to the above-mentioned AND circuits 23, 25 to 30, 32, 3 via the differentiation circuit 22.
6 and the input side of the OR circuit 31. Further, the output side of the AND circuit 23 is
A flip-flop circuit (hereinafter abbreviated as FF) 47 provided for selectively setting the time display state and calendar display state in the normal mode.
is connected to the T terminal of the FF 47, and the Q output terminal of the FF 47 is connected to the display control circuit 9.
The output sides of the AND circuits 25 to 30 are connected to the correction signal input terminals of each of the time-based counters 4 described above.

Furthermore, the AND circuits 32 and 36 are connected to the first and second
The output terminals of the FFs 40 and 41 are connected to the T terminals of the FFs 40 and 41, which are provided as alarm ON-OFF control means for selectively setting the ON-OFF state of the alarm device. ,
The INH input terminals of INH circuits 42 and 43 and the display control circuit 9 are provided as alarm operation prohibition means for prohibiting the operation of the respective alarm devices when the second alarm device is set to the OFF state.
It is connected to the.

Further, the output sides of the first and second coincidence detection circuits 7 and 8 described above are connected to the other input sides of the INH circuits 42 and 43.
The output side of is connected to the buzzer drive circuit 11 via an OR circuit 44. In addition, the OR circuit 31
The output side of the above-mentioned AND circuits 34 to 35, 38
-39, and the output sides of the AND circuits 34-35, 38-39 are connected to the first and second
It is connected to the correction signal input terminal side of the alarm memories 5 and 6.

On the other hand, the lamp lighting switch S ₄ is
and one input side of the AND circuit 46 and the preset terminal PS of the time correction target selection shift register 19. The 8Hz output signal from the frequency divider circuit 3 is input to the other input side of the AND circuit 46, and the output side of the AND circuit 46 is connected to the other input side of the OR circuit 31. It is connected to the.

Here, the operation of the timepiece of this embodiment will be explained. Note that this circuit operates at a positive logic level, and when it is written simply as H, it means the logic level H.
Also, when simply written as L, it indicates the logic level L.

The function selection shift register 14 has a fourth function selection shift register 14.
With the state of 100 shown in the figure as the initial state, each time the function selection switch _S1 is closed,
The contents shift step by step. That is, the initial state described above corresponds to a normal mode that can be controlled to either the time display state or the calendar display state as described later, and in this state, the AND circuit 1
5 is in the ON state. Here, when the time correction target selection shift register 19 is in the initial state as shown in FIG. 4 and no correction target is selected, the AND circuit 23 is in the ON state. In this state, the FF 47 alternately repeats the set state and reset state each time the correction signal input switch _S3 is closed. That is, when the FF 47 is in the set state,
The watch is in the time display state as shown in Figure 1.
In addition, when in the reset state, it corresponds to the calendar display state shown in Figure 2, and the display switching between the two is possible in the normal mode, when either correction target is selected by the correction mode selection switch _S2 . Correct signal input switch only when not
This can be done optionally by S ₃ .

On the other hand, from the above state, the correction mode selection switch
Each time _S2 is closed, the contents of the time correction target selection shift register 19 are sequentially shifted by one step, and the time correction signal input gate group 2
Any one of AND circuits 25 to 30 configuring 4
can be selectively turned on.

Therefore, any one of the AND circuits 25 to 30 is ON.
The desired correction target is selected depending on whether the current state is set, and in this state, by operating the above-mentioned correction signal input switch _S3 , one of the seconds to months forming the time system counter 4 is selected. A correction signal can be supplied to the counter that has been updated. As mentioned above, if the lamp switch _S4 is closed while any correction target is selected by the time correction target selection shift register 19, the preset terminal PS of the shift register 19 is A return signal is supplied, forcing the fourth
It is configured to return to the initial state as shown in the figure.

On the other hand, by closing the function mode selection switch _S1 , the function selection shift register 14 is sequentially shifted one step at a time from the initial state shown in FIG. That is, when the shift register 14 becomes in the state of 010, the timepiece shifts to the display mode related to the first alarm device as shown in FIG. 3, and the AND circuit 16 becomes in the ON state. In this state, if the first alarm time correction target selection shift register 20 is in the initial state as shown in the figure, the FF 40 (described later) is in the set state, and the first alarm device is in the ON state, the display will change to the third one. As shown in Figure a, the first alarm time display mode is entered.

From this state, further modify mode selection switch S ₂
When the selection shift register 20 is closed, the state of the selection shift register 20 is sequentially shifted one step at a time according to the above-mentioned initial state, and one of the first alarm time correction signal input gate groups 34 to 35 is selectively turned ON. be able to. For example, the shift register 20
becomes the state shown by 010, and AND circuit 3
4 is in the ON state, the minute digit of the first alarm time is selected as a correction target, and the display of the minute digit becomes a flashing state as shown in FIG. 3b. In this state, when the above-mentioned correction signal input switch S ₃ is closed once, one correction pulse is formed in the differentiating circuit 22, and the correction pulse is generated by the OR circuit 31, AND
Via the circuit 34, a minute counter of the first alarm memory 5 is supplied. Therefore, when the first alarm time is corrected using the correction signal input switch _S3 , step-by-step correction can be performed pulse by pulse.

In addition, in this state, the lamp lighting switch mentioned above should be turned on.
When S ₄ is closed, the AND circuit 46 is turned on, and the 8Hz correction signal from the frequency divider circuit 3 is transmitted through the AND circuit 46, the OR circuit 31, and the AND circuit 34 to the portions constituting the first alarm memory 5. It will be supplied to the counter. Therefore, while the lamp lighting switch _S4 is closed, the minute digit of the first alarm time is rapidly adjusted.

In addition, from the above state, modify mode selection switch S ₂
When the shift register 20 is closed, the shift register 20 is shifted to the state of 001, and the AND circuit 35 is turned on.
Of the first alarm time, the hour digit is selected as a correction target, and the hour digit display is in a flashing state. In this state, the correction signal input switch _S3
By closing the , the hour digit of the first alarm time can be corrected in increments. Of course, you can also make high-speed corrections by closing the lamp lighting switch _S4 . As a result, according to the above configuration, when adjusting the alarm time, the lamp lighting switch _S4 is used to perform a high-speed adjustment to a value slightly before the desired value, and then the display changeover switch is turned on.
By operating _S3 and making the correction up to the desired value by stepping one pulse at a time, even if the amount of correction is large, the correction can be made quickly and accurately. Further, the first alarm time correction target selection shift register 20 described above does not select any digit as a correction target as shown in the figure. When in the initial state of 100, the AND circuit 32 is in the ON state, and in this state, the FF 40 alternates between the set state and the reset state each time the aforementioned correction signal input switch _S3 is closed. It will be repeated.

Here, when the FF 40 is set to the set state, the INH circuit 42 is turned ON and the first alarm device is controlled to be ON, and when the FF 40 is set to the reset state, the INH circuit 42 is turned ON.
The first alarm device is controlled to be in the OFF state. In other words, the first alarm device is ON
In this state, when the current time and the first alarm time stored in the first alarm memory 5 match and the output side of the first coincidence detection circuit 7 becomes H, the output side of the INH circuit 42 also becomes H. Since the output side of the OR circuit 44 also becomes H, the buzzer 12 is driven and an alarm operation is performed.
When the first alarm device is controlled to be in the OFF state, the output of the first coincidence detection circuit 7 is cut off by the INH circuit 42, so even if the first alarm time arrives, the buzzer does not sound. 12 is not activated, and the first alarm device is prohibited from alarming.

Further, when the first alarm device is in the ON state in the first alarm display mode, the time display section of the liquid crystal display device 1 displays the first alarm device in the first alarm memory 5 as shown in FIG. 3a. The alarm time is displayed, but FF4
0 is in the reset state and the first alarm device is activated.
When in the OFF state, the time display section of the liquid crystal display device 1, as shown in FIG. 3c,
The display will change to the words “OFF” and the first
The alarm device is configured to clearly indicate that the alarm device is set to an OFF state. Note that the first
The ON-OFF state of the alarm device is configured to be identified, and when it is in the ON state, frame 1
b is displayed and is cleared when it is in the OFF state. The display state of this frame 1b is maintained even when the clock is returned to the normal time state as shown in FIG. Whether the first alarm device is ON or OFF can be determined based on whether the first alarm device is displayed or erased.

Further, when the function mode selection switch _S1 is further closed from the first alarm display mode, the shift register 14 shifts to the state 001, and the second
The alarm display mode will be selected. However, since the functions and operations of this second alarm device are all the same as those of the first alarm device described above, a detailed explanation thereof will be omitted.

As described above, according to the present invention, in addition to the standard functions of displaying the time and calendar, even in an electro-optical display type electronic watch that is equipped with at least an alarm function as an additional function, the function mode selection switch and the correction mode can also be used. By simply providing three external operation switches, a selection switch and a correction signal input switch,
Calling the function mode related to additional functions, calling the correction status and selecting the correction target when correction is required for each function, executing the correction by inputting a correction signal, and turning on the alarm device operation ~
All settings, such as OFF selection, can be easily performed using an extremely unified and easy-to-understand operation. That is, according to the present invention, modification is required so that the modification state can be called, the modification target can be selected, and the modification signal inputted in exactly the same procedure in both the normal mode and the alarm mode. For each function mode, the same external operation switch (correction mode selection switch and correction signal input switch) can be used to perform corrections using the same operating procedure, making the operation itself very easy to understand, and making special This also eliminates the need for additional safety switches.

Regarding the alarm function, an alarm ON/OFF control means for selectively setting the alarm ON/OFF independently of the alarm memory;
and an alarm operation prohibition means for prohibiting operation of the alarm device when the OFF state is set by the control means, and only when the alarm mode is selected and the alarm time correction state has not yet been called. Since an input control means is provided for controlling the correction signal input switch so that a signal for changing the setting state of the alarm ON-OFF control means can be input, there is no need to increase any new external operation switch. You can arbitrarily select the ON-OFF state of the alarm device with a very simple operation. Moreover, since the alarm memory and the alarm ON-OFF control means are provided independently from each other as described above, even when the OFF state is set by the above control means, the alarm memory can be reset without having to reset the alarm memory. It becomes possible to control the alarm device to the OFF state without having any effect on the content itself. As a result, even if you want to turn off the alarm device only on a specific day, such as Sunday, and set the alarm to operate at the same time on other days, the alarm will be activated every time the alarm device is turned back on. There is no need to reset the alarm time in the memory, making it more convenient to use.

In addition, in the above embodiment, in order to identify the alarm ON to OFF state, the time display section displays the alarm time in the alarm memory when the alarm ON state is set in the alarm mode, and displays the alarm time in the alarm memory.
It is configured so that when the OFF state is set, the state is switched to the state where the word "OFF" is displayed, but with such a structure, if an attempt is made to adjust the alarm time, etc., the alarm will be reset due to an erroneous operation.
Even if you accidentally set the OFF state,
It is possible to immediately notice an erroneous operation at a glance from the display state.

Furthermore, the above ON in alarm mode ~
In addition to the OFF identification display means, there is also a display means that can identify the ON to OFF state even in normal mode, so when you are carrying it normally (normal mode), you can turn it ON without calling the alarm mode. ~ It is possible to identify the OFF state.

In the above-mentioned embodiment, when the correction state is selected in the alarm mode, the lamp lighting switch is configured to function as a high-speed correction switch, but if the lamp lighting switch is provided, , such a configuration is also possible.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the external appearance of an electro-optical electronic timepiece with an alarm device according to an embodiment of the present invention when it is in a time display state, and FIG. 2 is a view when the timepiece of the present invention is switched to a calendar display state. FIGS. 3a, b, and c are plan views showing each display state regarding the first alarm of the timepiece of the present invention. FIG. 4 is a circuit configuration diagram showing the circuit configuration of the present invention. It is. 1...Liquid crystal display device, 2...Crystal oscillation circuit, 3
...Frequency dividing circuit, 4...Time system counter, 5...
First alarm memory, 6... Second alarm memory, 7, 8... First and second coincidence detection circuits, 9...
... Display control circuit, 10 ... Decoder driver, 11 ... Buzzer drive circuit, 12 ... Buzzer,
14...Shift register for function selection, 19...Shift register for time correction target selection, 20, 21...
...Shift register for selecting the first and second alarm time correction targets, 24...Time correction signal input gate group,
33, 37...First and second alarm time correction signal input gate group, 45...Lamp, _S1 ...Function selection switch, _S2 ...Modification mode selection switch, _S3 ...
...Correction signal input switch, S ₄ ...Lamp lighting switch.

Claims (1)

[Scope of Claims] 1. A counting means for counting the current time, an alarm memory for storing the alarm time, a coincidence detection means for detecting coincidence between the current time and the alarm time, and a coincidence detection means for detecting coincidence between the current time and the alarm time, and according to the output of the coincidence detection means. An electro-optical display type electronic watch having at least an alarm device consisting of an alarm element etc. configured to operate, which has a normal mode in which at least one of the current time or a calendar is displayed and one or more alarm modes. a function mode selection switch provided with the function of selecting any one function mode from a plurality of function modes, and a correction mode for the plurality of function modes selected by the function mode selection switch. The only correction mode selection switch which is provided in common to specify the correction mode and which is provided with the function of calling up the correction state and selecting the correction target at least in both the normal mode and the alarm mode. , is provided in common for inputting correction signals to a plurality of function modes selected by the function mode selection switch, and one of the correction targets is selected by the correction mode selection switch. A correction signal input switch is controlled such that a correction signal for correcting the selected correction target can be input only when the selected correction target is corrected, and at least one of an alarm ON state and an alarm OFF state is selectively set. Therefore, an alarm mode is selected by an alarm ON-OFF control means provided independently of the alarm memory and the function mode selection switch, and which digit of the alarm time is selected by the correction mode selection switch. input control means for providing a function of inputting a signal for changing the setting state of the alarm ON to OFF control means to the correction signal input switch only when the alarm ON to OFF control means is not selected as a correction target;
an alarm operation prohibition means for prohibiting the operation of the alarm device without resetting the alarm memory when the alarm OFF state is set by the OFF control means;
An electro-optical display electronic timepiece characterized by comprising an ON-OFF identification display means for identifying whether an ON state or an alarm OFF state is set. 2 The ON-OFF identification display means includes a first identification display means that is controlled so that an identification display is provided only in the alarm mode, and a first identification display that is controlled so that an identification display is provided at least in the normal mode. the first identification display means is controlled to display an alarm.
When the ON state is set, the alarm time will be displayed,
And “OFF” when the alarm OFF state is set.
An electro-optical display type electronic timepiece according to claim 1, characterized by comprising a display means that can be switched to a display state of the characters .