JP3131846B2 - Multifunction electronic clock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multifunction electronic timepiece for switching and displaying information of a plurality of functions.

[0002]

2. Description of the Related Art In a multifunction electronic timepiece having a plurality of functions such as a time display function, a schedule function, and a stopwatch function, a single mode changeover switch is provided for a user to select a function (mode). The function is cyclically selected each time the mode changeover switch is operated.

In the above-mentioned multifunction electronic timepiece, if no switch operation is performed for a certain period of time with an arbitrary function selected, an automatic return from the mode selected at that time to the time display mode is performed. A function called a function is provided.

[0004] When a mode switch is operated again after a certain switch operation is performed in a state where an arbitrary function is selected, the mode is not switched to the next function of the function selected at that time, but is directly set to the time. In some cases, a function called a direct return function capable of returning to the display mode is provided.

However, in the above-mentioned auto return function and direct return function, the return destination is limited to the time display mode. For example, after switching to the schedule mode during stopwatch measurement, and confirming the schedule data in the schedule mode, When the mode switch is operated, the mode returns to the time display mode. In this case, in order for the user to check the stopwatch time, it is necessary to operate the mode switch several times to switch to the stopwatch mode again, and the mode switching operation is troublesome.

At this time, even if the direct return function does not work, it is necessary to switch the mode selected at that time to the stopwatch mode by operating the mode switch.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to simplify a function switching operation in a multifunction electronic timepiece having a plurality of functions by directly switching an arbitrary function to a predetermined function in an operating state. It is.

[0008]

The gist of the present invention is that information on a plurality of functions is switched and displayed by operating a function selection switch.
When the switch is not operated for a certain period of time for the selected function, the multifunction electronic watch returns to a specific function among a plurality of functions.When the switch is not operated for a certain period of time with any function selected. It is determined whether or not a predetermined function is in an operating state, and when the predetermined function is in an operating state, information of the predetermined function is displayed, and when the predetermined function is in an inactive state, That is, information of a specific function is switched and displayed.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a circuit configuration diagram of a multifunction electronic timepiece according to one embodiment of the present invention.

In FIG. 1, a reference clock signal generated by an oscillation circuit 1 is frequency-divided by a frequency dividing circuit 2, and a 1 Hz clock signal is output to a time counting circuit 3 and an AND gate 4.
The 00 Hz signal is output to AND gate 5. The time counting circuit 3 counts a 1 Hz clock signal to obtain time data,
The time data is output to the CPU 6.

Flip-flop (hereinafter referred to as FF) 7
Is a circuit which is set or reset by a set signal and a reset signal from the CPU 6. When the FF 7 is set (output Q is "1"), a 100 Hz signal is supplied to the stopwatch counting circuit 9 via the AND gate 5. When the FF 7 is reset (the output Q is "0"), the AND gate 5 closes and the supply of the 100 Hz signal to the stopwatch circuit 9 is stopped.

The stopwatch counting circuit 9 has the function of
This circuit measures the 0 Hz signal and measures the elapsed time from the start of the stopwatch measurement to the present, and outputs the measured stopwatch time data to the CPU 6.

The FF 8 is a circuit that is set or reset by a set signal and a reset signal from the CPU 6. When the FF 8 is set, a 1 Hz signal is supplied to the subtraction timer circuit 10 via the AND gate 4, and
When 8 is reset, the supply of the 1 Hz signal to the subtraction timer 10 is stopped.

The subtraction timer 10 is a circuit for subtracting the elapsed time from the start of the timer obtained by counting the 1 Hz signal from a preset timer time, and outputs the subtraction result to the CPU 6 as timer time data. .

The stopwatch counting circuit 9,
The count value of the subtraction timer circuit 10 is reset by a reset signal from the CPU 6. The alarm time storage circuit 11 is a circuit that stores an alarm time set by a user, and outputs the stored alarm time data to the CPU 6.

The CPU 6 detects an operation signal of a switch of the switch section 12 and sets or resets the FFs 7 and 8 so as to start measurement of a stopwatch time or a timer time, and a time counting circuit 8 and a stopwatch counting circuit 9. Then, the data output from the subtraction timer circuit 10 and the alarm time storage circuit 11 are stored in the RAM 13. Further, the CPU 6 displays each data such as the current time, the stopwatch time, the timer time, and the schedule on the display unit 14.

Although not shown, the switch unit 12 is a mode changeover switch S1 for operating when switching between operation modes such as a current time mode, a schedule mode, and a stopwatch mode, and an operation for starting or stopping measurement of a stopwatch or a timer. Switch S2 and whether the return destination mode is the current time mode,
Or, it is composed of an S3 switch operated when selecting whether to set the stopwatch mode or the timer mode, and S4 and S5 switches operated when setting the timer time.

The RAM 13 has a mode flag M shown in FIG. 1, a flag FA which is set when a valid key operation is performed, a memory area for storing schedule data, and a current time mode as a return destination mode. , Or a flag FR indicating whether another mode is specified.

The mode flag M stores a numerical value corresponding to the operation mode. For example, in the current time mode, M = 0.
, M = 1 in the schedule mode, M = 2 in the stopwatch mode, and M = 2 in the timer mode.
When 3 is in the alarm mode, M = 4 is stored.

Next, the operation of the multifunction electronic timepiece having the above configuration will be described. FIG. 2 is a flowchart illustrating the overall operation of the multifunction electronic timepiece according to the embodiment. Step S1 in FIG.
Is used to determine whether or not there has been a switch input. When there is a switch input, a switch process in the next step S2 is executed.

FIG. 3 is a detailed flowchart of the switch processing in step S2. It is determined whether or not what has been operated in step S11 in FIG. 3 is the mode changeover switch S1. If it is the mode changeover switch S1 that has been operated, it is determined in step S12 whether or not the flag FA is "0".

Here, the flag FA is a flag that is set (FA = 1) when a switch other than the switch S1 is operated, and stores that a valid switch operation has been performed.

When FA = 0, that is, when no switch operation is performed, the process proceeds to step S13, where the mode register M is incremented by "1" to switch to the next mode. Then, in the next step S14, it is determined whether or not the value of the mode register M is larger than "4".

If M> 4, the mode switch S1 is operated in the alarm mode of M = 4. In this case, "0" is set in the mode register M in the next step S15. Switch to current time mode.

On the other hand, the flag FA
Is “1”, after a valid switch operation is performed,
The case where the mode changeover switch S1 is operated,
In this case, a direct return process of step S16 for directly returning to the current time mode or the stopwatch mode and the timer mode is executed.

FIG. 4 is a more detailed flowchart of the direct return process in step S16. First, it is determined whether or not the flag FR is “0” in step S51 of FIG. Here, the flag FR is a flag indicating a return destination at the time of an automatic return or a direct return, and when the current time mode is designated as the return destination mode by operating a switch S3 described later.
“0” is set in the flag FR, and “1” is set in the flag FR when the stopwatch mode and the timer mode are designated as the return destination modes.

If the flag FR is "0", it means that the current time mode is specified as the return destination mode.
In this case, it is further determined in step S52 whether or not the value of the mode register M is "0".

At this time, if M ≠ 0, step S53
To set the mode register M to "0" to switch to the current time mode. That is, when a switch other than the switch S1 is operated in the state of the flag FR = 0 and the switch S1 is operated again, the operation modes at that time are the schedule mode, the stopwatch mode, the timer mode,
In any of the alarm modes, the mode is directly switched to the current time mode.

At this time, if M = 0 and the operation mode is the current time mode, "1" is set in the mode register M in step S54 to switch to the schedule mode. Since the mode switching has been completed by the above processing, the flag FA is set to "0" in the next step S55.

If the flag FR is "1" in the determination of step S51, it means that the watch mode and the timer mode are designated as the return destination modes. In this case, first, the mode register M is set in step S56. It is determined whether or not the value of is “2”.

After a valid switch operation is performed, M = 2
When the switch S1 is operated in the stopwatch mode described above, it is determined in a next step S57 whether or not the subtraction timer circuit 10 is in a reset state (non-operating state).

If the subtraction timer circuit 10 is in the set state (operating state) (NO in step S57), "3" is set in the mode register M in step S58 to switch to the timer mode. Then, the above-described step S55
To set the flag FA to "0".

If the subtraction timer circuit 10 is in the reset state at this time (YES in step S57),
In step S53, "0" is set in the mode register M to switch to the current time mode.

If M ≠ 2 in the determination in step S56,
Proceeding to step S59, it is determined whether the value of the mode register M is "3". After a valid switch operation is performed, M
When the switch S1 is operated in the timer mode of = 3, in the next step S60, the stopwatch counting circuit 9
Is in a reset state.

If the stopwatch counting circuit 9 is in the set state, the flow advances to step S61 to set "2" in the mode register M and switch the operation mode to the stopwatch mode. After that, the flag FA is set to "0" in a step S55.

If the stopwatch counting circuit 9 is in the reset state, the process proceeds to step S53, where the mode register M is set to "0" to switch the operation mode to the current time mode.

If M ≠ 3 in the determination in step S59,
This is a case where the switch S1 is operated in a mode other than the stopwatch mode and the timer mode after a valid switch operation is performed. In this case, it is determined in step S62 whether or not the stopwatch counting circuit 9 is in a reset state. .

If the stopwatch counting circuit 9 is in the set state, the process proceeds to step S61 described above, where "2" is set in the mode register M and the operation mode is switched to the stopwatch mode.

At this time, if the stopwatch counting circuit 9 is in the reset state (the determination in step S62 is YES).
S) In the next step S63, it is determined whether or not the subtraction timer circuit 10 is in a reset state.

If it is determined in this step that the subtraction timer circuit 10 is in the set state, the process proceeds to step S58, where the mode register M is set to "3" to switch the operation mode to the timer mode.

At this time, if both the stopwatch counting circuit 9 and the subtraction timer circuit 10 are in the reset state, the operation proceeds to step S53 to switch the operation mode to the current time mode.

In this embodiment, by operating a switch S3 to be described later to set the flag FR to "0" or "1", the current time mode, the stopwatch mode, and the timer are set as the return destination modes at the time of direct return or auto return. One of the modes can be specified.

In the above-described direct return processing, when the stopwatch mode or the timer mode is being measured when the stopwatch mode and the timer mode are designated as the return destination mode when the flag FA is "1", the effective switch is set. By operating the switch S1 after the operation, the mode at that time can be directly switched to the stopwatch mode or the timer mode.

Thus, for example, even if the mode is switched to another mode after the measurement of the stopwatch time is started, the mode can be directly switched to the stopwatch mode only by operating the mode switch S1 once. Can be simplified.

Returning to FIG. 3, if it is determined in step S11 that the switch S1 has not been operated, the flow advances to step S17 to set the flag FA to "1". As a result, the fact that a switch other than the switch S1 has been operated, that is, that a valid switch operation has been performed, is stored.

Next, it is determined whether or not the switch S2 has been operated in step S18. Switch S operated
If it is 2, it is determined in the next step S19 whether or not the value of the mode register M is "2". If M = 2, it is further determined in step S20 whether or not the stopwatch counting circuit 9 is in a non-operating state.

If the stopwatch counting circuit 9 is in the non-operation state, the FF 7 is set in the next step S21,
Start measuring stopwatch time. At this time, if the stopwatch counting circuit 9 is operating, the FF 7 is reset in step S22 to stop the measurement of the stopwatch time by the stopwatch counting circuit 9.

If M ≠ 2 in the determination in step S19,
Proceeding to step S23, it is determined whether the value of the mode register M is "3". If M = 3, step S2 is further performed.
At 4, it is determined whether the subtraction timer circuit 10 is in a non-operation state.

If the subtraction timer circuit 10 is in the non-operation state, the FF 8 is set in the next step S25 to start the subtraction in the subtraction timer circuit 10. At this time, if the subtraction timer circuit 10 is operating, F is determined in step S26.
F8 is reset to stop the subtraction of the timer time in the subtraction timer circuit 10.

That is, in the stopwatch mode of M = 2 and the timer mode of M = 3, the switch S2
Can be operated to start or stop the measurement of the stopwatch and the timer.

When the switch S2 is operated in a mode other than M = 2 and M = 3, S2 processing in each mode is executed in step S27. Step S
If it is not the switch S2 that was operated in the determination of 18,
Proceeding to step S28, it is determined whether or not the switch S3 has been operated.

If the switch S3 has been operated, it is further determined in step S29 whether or not the value of the mode register M is "0". If M = 0, the flag F at that time
If the value of R is "0", it is inverted to "1", and if it is "1", it is inverted to "0".

This flag FR is a flag for designating a return destination mode at the time of an auto return or a direct return. When the flag FR is "0", the current time mode is designated as the return destination mode, and the flag F is set to "1". "", The stopwatch mode and the timer mode are designated as the return destination modes.

That is, in the current time mode of M = 0,
By operating the switch S3, it is possible to arbitrarily specify a return destination mode at the time of an automatic return or a direct return. If M ≠ 0 in the determination in step S29, it is determined in step S31 whether or not the value of the mode register M is “2”. If M = 2, it is further determined at step S32 whether or not the counting by the stopwatch counting circuit 9 is stopped.

If the counting by the stopwatch counting circuit 9 is stopped, a reset signal is output in step S33 to clear the counting content of the stopwatch counting circuit 9.

If M ≠ 2 in the determination in step S31, the flow advances to step S34 to determine whether or not the value of the mode register M is "3". If M = 3, it is further determined in step S35 whether or not the subtraction timer circuit 10 is stopped.

If the subtraction by the subtraction timer circuit 10 is stopped, a reset signal is output in step S36,
The contents of the subtraction timer circuit 10 are cleared. That is, M
In the stopwatch mode of = 2 and the timer mode of M = 3, the switch S3 can be operated to reset the stopwatch counting circuit 9 or the subtraction timer circuit 10.

At this time, if the switch S3 is operated in a mode other than M = 2 and M = 3, step S3
7 are performed in each mode. If it is determined in step S28 that the switch S3 has not been operated, the flow advances to step S38 to determine whether or not the switch S4 has been operated.

If the switch S4 has been operated, it is determined in the next step S39 whether or not the value of the mode register M is "3". If M = 3, step S40 is further performed.
It is determined whether or not the subtraction timer circuit 10 is stopped.
If the subtraction timer circuit 10 is stopped, step S
At 41, one minute is added to the timer time TM of the subtraction timer circuit 10.

At this time, if M ≠ 3, step S42
To execute the S4 process in another mode. If it is determined in step S38 that the switch S4 has not been operated, the switch S5 has been operated.
The process proceeds to 43, where it is determined whether the value of the mode register M is "3".

If M = 3, it is further determined in step S44 whether or not the subtraction timer circuit 10 is stopped. If the subtraction timer circuit 10 is stopped, step S45 is performed.
Subtracts 1 minute from the timer time TM of the subtraction timer circuit 10.

That is, in the timer mode of M = 3, an arbitrary timer time can be preset in the subtraction timer circuit 10 by operating the switches S4 and S5.
If M ≠ 3 at this time, S5 processing in another mode is executed in step S46.

When the above switch processing is completed, the alarm processing and the schedule processing of step S3 in FIG. 2 are executed. The alarm process and the schedule process are processes for notifying the user with an alarm sound or the like when the current time matches the alarm time or the schedule time. Thereafter, a display corresponding to the operation mode at that time is performed in the display processing of step S4.

On the other hand, if it is determined in step S1 that there is no switch input, the flow advances to step S5 to determine whether switch input has not been performed for a predetermined time or more. If there is no switch input for a certain period of time or more, an automatic retarding process in the next step S6 is executed.

FIG. 5 is a more detailed flowchart of the auto return process. In step S71 of FIG. 5, it is determined whether or not the value of the mode register M is "2", that is, whether or not the current mode is the stopwatch mode.

If M = 2 and the mode is the stopwatch mode, it is determined in step S72 whether or not the stopwatch counting circuit 9 is in the reset state. If it is determined in step S72 that the stopwatch counting circuit 9 is operating instead of being in the reset state, the process proceeds to step S75, and the process proceeds to step S7.
If it is determined in step 2 that the stopwatch counting circuit 9 is in the reset state, the processing is terminated.

If M ≠ 2 in the determination in step S71,
Proceeding to step S73, it is determined whether or not the value of the mode register M is "3", that is, whether or not the current mode is the timer mode. If M = 3, it is determined in a step S74 whether or not the subtraction timer circuit 10 is in a reset state. Step S74
If it is determined that the subtraction timer circuit 10 is operating instead of the reset state, the process proceeds to step S75, and if it is determined that the timer is in the reset state, the process ends there.

That is, in the stopwatch mode and the timer mode, when the stopwatch counting circuit 9 or the subtraction timer circuit 10 is operating, the automatic return to the specific mode is not performed even if there is no switch input for a certain period of time.

If it is determined in step S75 that the flag FR = 0 and the current time mode is specified as the return destination mode, the flow advances to step S78 to set "0" in the mode register M and switch the operation mode to the current time mode. .

When the flag FR = 1 and the stopwatch mode and the timer mode are designated as the return destination modes, it is determined in a step S76 whether or not the stopwatch counting circuit 9 is in a reset state.

At this time, if the stopwatch counting circuit 9 is operating, the process proceeds to step S80, where "2" is set in the mode register M, and the operation mode is switched to the stopwatch mode.

If the stopwatch counting circuit 9 is in the reset state, it is determined in the next step S77 whether the subtraction timer circuit 10 is in the reset state. If the subtraction timer circuit 10 is operating, the process proceeds to step S81, where "3" is set in the mode register M, and the operation mode is switched to the timer mode.

When both the stopwatch and the timer are operating, the stopwatch mode is prioritized because the timer mode follows the stopwatch mode and the switch S1 is operated only once to switch to the timer mode. This is because it can be switched.

This means that the mode switching in the auto return process has been completed.
At 79, the flag FA storing the presence or absence of the switch operation is set to "0".

In the automatic return processing of this embodiment, the flag FR is set to "1" to designate the stopwatch mode and the timer mode as the return destination mode, for example, switching from the stopwatch mode or the timer mode to another mode. Then, when the auto return function is activated and the stopwatch measurement or the timer measurement is in progress, it is possible to directly return to the stopwatch mode or the timer mode.

Therefore, during the measurement of the stopwatch or the timer, the mode is switched to the stopwatch mode or the timer mode at the time of the auto return, so that the automatic return function is activated and the mode is switched to the current time mode.
There is no need for the user to operate the mode switch S1 several times to switch to the stopwatch mode or the timer mode again.

The present invention can be applied not only to a dedicated device for an electronic timepiece but also to a device in which a timepiece function is incorporated in an electronic calculator, an electronic organizer or the like.

[0078]

According to the present invention, when the predetermined function is set to the operating state at the time of the auto return or the direct return, the function can return to the predetermined function. There is no need to automatically return to the current time mode and operate the function selection switch several times from that state to switch to the function in operation, thereby realizing a more convenient multifunctional electronic timepiece.

[Brief description of the drawings]

FIG. 1 is a circuit configuration diagram of a multifunction electronic timepiece according to an embodiment.

FIG. 2 is an overall flowchart of the embodiment.

FIG. 3 is a flowchart of a switch process.

FIG. 4 is a flowchart of a direct return process.

FIG. 5 is a flowchart of an auto return process.

[Explanation of symbols]

 6 CPU 12 switch unit 13 RAM 14 display unit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G04G 9/00 G04G 1/00

Claims (4)

(57) [Claims] 1. A function selecting switch sequentially switches and displays information of a plurality of functions on the same display unit. When an arbitrary function is selected and no switch operation is performed for a predetermined time, a plurality of functions are displayed. In the multi-function electronic timepiece returning to the display of the specific function in, the operation control means for setting operation or non-operation of a predetermined function other than the specific function among the plurality of functions, and When the switch is not operated for a certain period of time in a state in which the function is selected and the predetermined function is in an operating state, information of the predetermined function is displayed on the display unit, and the predetermined function is in a non-operating state. And a display control means for displaying information on the specific function on the display unit. 2. The information of a plurality of functions is sequentially switched and displayed on the same display section by operating a function selection switch, and when an arbitrary function is selected and no switch operation is performed for a predetermined time, a plurality of functions are displayed. A multi-function electronic timepiece returning to the display of a specific function in the operation control means for setting operation or non-operation of a predetermined function other than the specific function among the plurality of functions; Return destination specifying means for specifying whether to return to the specific function or the predetermined function when the return destination is not set, and that the switch operation is not performed for a predetermined time while any function is selected. When the predetermined function is designated as a return destination and the predetermined function is in the operating state, the information of the predetermined function is displayed on the display unit, and the predetermined function is in the non-operating state. In Sometimes, multifunctional electronic timepiece characterized by comprising a display control means for displaying information of the specific function on the display unit. 3. The information of the function selected by the operation of the function selection switch is sequentially switched and displayed on the same display unit, and when the function selection switch is operated again after the effective switch operation is performed, An operation control unit configured to set operation or non-operation of a predetermined function other than the specific function among the plurality of functions, wherein the multifunction electronic timepiece returns to display of a specific function of the plurality of functions; After the predetermined switch operation is performed in a state where the function is selected, when the function selection switch is operated again, when the predetermined function is in the operating state, the information of the predetermined function is A multi-function electronic timepiece, comprising: display control means for displaying on the display unit, and when the predetermined function is in a non-operation state, displaying information of the specific function on the display unit. 4. The information of the function selected by the operation of the function selection switch is sequentially switched and displayed on the same display unit, and when the function selection switch is operated again after the effective switch operation is performed, An operation control unit configured to set operation or non-operation of a predetermined function other than the specific function among the plurality of functions, in the multi-function electronic timepiece returning to display of a specific function of the plurality of functions; After a valid switch operation is performed in a state where the function is selected, the return destination when the function selection switch is operated again is designated as the specific function or the predetermined function. Return destination designating means, and after a valid switch operation is performed in a state where an arbitrary function is selected, when the function selection switch is operated again, the predetermined function is designated as a return destination. When the predetermined function is in the operating state, the information of the predetermined function is displayed on the display unit, and when the predetermined function is in the non-operating state, the information of the specific function is displayed on the display unit. A multi-function electronic timepiece comprising: