JPH074632Y2 - Clock with summer time function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an improvement of a timepiece with a summer time function.

[Prior Art] Daylight saving time is aimed at saving energy in summer,
It is to advance the time by about 1 hour for a certain period, which has already been implemented in the United States and Europe, and its implementation is being considered in Japan.

Various proposals have been made for the timepiece with the summer time function, and the means for realizing the timepiece are roughly classified into two types. One is to automatically adjust the time for daylight saving time according to stored calendar information (Japanese Patent Laid-Open No. 56-143986, Japanese Utility Model Laid-Open No. 57-50088, Japanese Patent Publication No. 6-6).
The other one is to change and change the summer time time display by operating the switch means (Actual No. 57-22082).

[Problems to be solved by the invention] In the case of automatically changing the time for correcting the daylight saving time according to the calendar information, it has the advantage that the time adjustment for correcting the daylight saving time by the user is completely unnecessary. However, in the case of a type of clock that originally does not store this kind of calendar information, the calendar information must be stored in order to correct the daylight saving time, which increases the added value but considerably increases the cost. Will be.

On the other hand, in the case of the type that manually corrects the summer time by operating the switch means, it is necessary to arrange a dedicated switch means for correcting the summer time, which hinders the miniaturization of this type of timepiece. turn into.

Furthermore, the above-mentioned two types of conventional timepieces with summer time have a problem that they can only be used in the areas where daylight saving time is implemented. That is, in the former type of clock, the summer time is automatically corrected according to the calendar information, and in the latter type, the switch means is completely unnecessary in the area where the summer time is not adopted. Because it will be.

Therefore, the purpose of the present invention is to make it possible to correct the daylight saving time by not arranging a dedicated switch for the daylight saving time so that the appearance does not need to be changed and the calendar information is not necessarily stored. By keeping the cost down and further reducing the probability of mistaken operation for daylight saving time correction by users in areas where daylight saving time is not adopted, both in areas where summer time is implemented and areas where it is not implemented It is to provide a watch with a summertime function that can be used in combination.

[Means for Solving the Problems] The present invention provides a timepiece having a time display section and a time adjustment key, and a timekeeping means for measuring the time during which the time adjustment key is continuously operated, and the timekeeping means. When the operation of the time adjustment key is canceled within a predetermined time based on the output of, the original time adjustment operation of the key is controlled, and the key is operated for a predetermined time or more. And a control means for controlling a summer time correction operation, the control means, when the time adjustment key is operated for a predetermined time or more for the first time, a certain time before and after a certain time of the current time. Each time is displayed alternately, the display time at that time is selectively controlled by releasing the time adjustment key, and thereafter, every time the time adjustment key is operated for a predetermined time or more, the previous time advance correction or Time delay The positive those configured to perform inverse time correction control.

[Operation] In the present invention, the time adjustment key for adjusting the time displayed on the time display portion is also used when correcting the summer time. That is, the time for which this time adjustment key is continuously operated is timed by the time measuring means, and the original time adjustment operation of the key is performed only when the operation of the key is canceled within the predetermined time, and the operation is continued for a predetermined time or longer. The daylight saving time correction operation is performed only when the above key is operated.

In particular, the control means for performing control based on the time adjustment key input will perform the following control when correcting the summer time. First, if the time adjustment key is operated for a predetermined time or longer after the power is turned on,
It is unknown to the watch side whether the time when the key is operated is the summer time period. Therefore, when the time adjustment key is first operated for a predetermined time or more, the time of the summer time implementation time which is a fixed time before the current time and the time after the end of summer time after the fixed time of the current time are set. The display is controlled alternately. Therefore, the operator can select one of the alternately displayed times by releasing the operation of the time adjustment key.

When the time adjustment key is operated for a predetermined time or longer after the summer time function is set as described above, the control means performs time correction opposite to the previous time advance correction or time delay correction. Then, it becomes possible for the clock side to automatically discriminate and perform the subsequent summer time correction.

As described above, according to the present invention, since the conventional time adjustment key is also used as the daylight saving time correction key, a timepiece with a summertime function can be realized without changing the appearance of the timepiece. Moreover, since the summer time function is realized by key operation, it is not always necessary to store calendar information and the like, and the cost reduction of the timepiece can be maintained. If the user selects the time of the daylight saving time period or the time of daylight saving time ending period at the time of initial setting of daylight saving time, then the daylight saving time can be automatically adjusted only by operating the time adjustment key for a predetermined time or longer. Because it is possible, the operation becomes extremely simple.

Further, even if the timepiece with the summer time function of the present invention is used in a region where the summer time is not implemented, the operation for correcting the summer time can be performed unless the operation method for correcting the summer time is described in the instruction manual or the like. Since it has very few characteristics, there is an advantage that this watch can be manufactured without distinction between the area where summer time is implemented and the area where it is not implemented. Particularly, as described in claim (2), the time adjustment key is used as a time adjustment key, and after the key is operated, a part of the time display portion is blinked to indicate the time adjustment mode. In this case, the user does not intentionally operate the time adjust key for a predetermined time or longer, so that it is possible to reliably prevent erroneous correction of summer time in an area where summer time is not implemented.

[Embodiment] An embodiment of a timepiece with a summer time function to which the present invention is applied will be specifically described below with reference to the drawings.

The reference signal oscillator 10 is composed of, for example, a crystal oscillator or the like, and outputs a highly accurate reference clock. The frequency divider 12 to which the output of the reference signal oscillator 10 is input appropriately divides the frequency of the reference clock of the oscillator 10 and outputs it. Minute counter 14
Is for counting the clock from the frequency divider 12 for displaying the minutes, and the hour counter 16 is counted every 1 minute.
And a signal is output to the display drive unit 18. The hour counter 16 counts the clock from the minute counter 14 and gives a signal to the display drive unit 18 every 60 minutes. The display drive unit 18 drives and controls the time display unit 20 that digitally displays the time based on the signals from the minute counter 14 and the hour counter 16, for example, by a 7-segment system.

A time adjustment key for adjusting the time displayed on the time display unit 20 is provided, and in this embodiment, the time adjustment key 22, the up key 24, the down key 26 and the feed key.
28 are provided respectively. And these various keys
Each is connected to the CPU 30 that controls the time adjustment operation. The time adjustment key 22 is for setting the time adjustment mode, and when this key 22 is operated, based on the control of the CPU 30, a part of the time display section 20 is driven to blink. ing. . The up key 24 and the down key 26 are for increasing or decreasing the unit of minutes and the unit of time displayed on the time display unit 20 by one. The feed key 28 is used to update a portion to be adjusted after the time adjust mode is set by the time adjust key 22.

The various configurations described above are configurations already adopted in the conventional digital timepiece, and a configuration for correcting the summer time, which is a characteristic configuration of the present embodiment, will be described below.

In this embodiment, the time adjustment key 22 is also used as a key for correcting the summer time. Then, the use of the two types of functions of the time adjust key 22 is distinguished by the time during which the key 22 is continuously operated. For this purpose, a clock unit 40 for counting the clocks from the frequency divider 12 is provided. When the time adjust key 22 is operated, the CPU 30 causes the timekeeping unit 4
The timekeeping command is output to 0 and the time adjustment key 22
The operation time of is counted. In the present embodiment, the time adjustment mode described above is set only when the operation of the time adjustment key 22 is canceled within 3 seconds, and the summer time correction mode is executed when the key 22 is continuously operated for 3 seconds or more. I have to.

The contents of the summer time correction mode executed by the CPU 30 are roughly classified into the following two types. That is,
When the time adjust key 22 is operated for the first time for 3 seconds or more after the power of this watch is turned on, one hour before and one hour after the current time displayed on the time display section 20 is displayed. Each time is controlled so that it is displayed alternately. Then, by subsequently releasing the operation of the time adjust key 22, the display time at that time is selectively controlled.

On the other hand, when the summer time correction mode for the second time and thereafter is carried out after the power supply of this timepiece is turned on, the time correction control opposite to the previous time advance correction or time delay correction is performed. For this reason, the daylight saving function set flag 32 is turned ON after the time adjustment mode is executed by the CPU 30 for the first time, while only one hour is set to correspond to the daylight saving time period when the second or subsequent daylight saving time correction mode is executed. After the correction for delaying is performed, the summer time set flag 34 is turned on.

Next, the operation of the timepiece having the summer time function having the above configuration will be described with reference to FIGS. 2 and 3.
In the flowchart shown in FIG. 2, the CPU 30 determines whether or not the time adjustment key 22 has been operated (step 1). If the judgment in step 1 is YES, the CPU 30 outputs a time count command to the time count section 40 (step 2), and in this time count section 40, the clock from the frequency divider 12 is input to cause the time adjustment. The operation time of the key 22 will be timed. Further, the CPU 30 controls the operation for the time adjustment mode based on the operation of the time adjustment key 22 and outputs a command for blinking a part of the display of the time display section 20 (step 3). For example, when the current time when the time adjust key 22 is operated is PM 3:00 as shown in FIG. 3 (A), the PM that can be changed first in the time adjust mode is displayed. It will be blinking.

After performing such time adjustment mode, the CPU
Monitors the output from the timer 40 and determines whether the time adjustment key 22 has been released from the key operation within 3 seconds (step 4). If the determination in step 4 is YES, the CPU 30 will accept the input for the subsequent time adjustment (step 5). For example, by operating the up key 24, the PM display is changed to the AM display, and then by operating the feed key 28, the blinking display shifts to the hour unit. And up key 24 or down key as well
Adjust the hour unit by the operation of 26, and then feed key
By the operation of 28, the blinking display is shifted to the minute unit,
Similarly, the up key 24 or the down key 26 is operated to adjust the time in minutes.

When the determination in step 4 is NO, the CPU 30 determines whether or not the summer time set flag 32 is turned on (step 6). If the determination in step 6 is NO, it means that the summer time correction mode is set for the first time after the power is turned on. Therefore, the CPU 30 controls the current time displayed on the time display unit 20 so as to alternately display the times of +1 hour and -1 hour (step 7). As a result, the current time is shown in Fig. 3 (A).
When it is PM3: 00 as shown in, the display of PM2: 00 which is one hour before that (see FIG. 7B) and PM4: which is one hour after the current time: The display of 00 (see FIG. 3 (C)) is driven alternately.

CPU30, while controlling the alternating display as described above,
The operation release of the time adjustment key 22 is monitored (step 8). When it is confirmed in step 8 that the operation of the time adjustment key 22 is confirmed, the CPU displays the display time at the time when the operation of the key 22 is released, that is, as shown in FIG. 3 (B) or FIG. Either time will be selected and displayed. Only when the operation up to step 9 is completed means that the setting of the summer time correction for this clock has been made.
When 0 is set, the summer time function set flag 32 is turned on (step 10).

Next, the CPU 30 determines whether or not the selection made when the time adjustment key 22 is released in step 8 is -1 hour with respect to the current time (step 11). If -1 hour is selected for the current time, it means the time adjustment to match the summer time period. In this case, the judgment in step 11 becomes YES, so the CPU
At 30, the summer time set flag 34 is turned on (step 12). On the other hand, if the determination in step 11 is NO and +1 hour is selected for the current time, it means that the time is adjusted outside the summer time period.
Turns off the summer time set flag 34 (step 13).

By the above-described operation, the operation when the summer time correction mode is set for the first time after the power supply to this watch is turned on is completed.

Even if the time adjust key 22 is subsequently operated, the CPU 30 similarly controls the operations from step 1 to step 5 shown in FIG. Then, in the determination of step 6 after the determination of step 4 is NO, the summer time function set flag 32 has already been turned on by the previous operation.
Is YES. The fact that the judgment in this step 6 is YES means that 2
It means that the daylight saving time correction mode has been set.

In this case, the CPU 30 proceeds to step 14 after step 6 and determines whether or not the summer time set flag 34 is turned on. If the judgment in step 14 is YES, it means that the time display that was in conformity with the summer time period has been displayed so far.Therefore, when adjusting the summer time next time, you must correct the time for the time outside the summer time period. I have to. Therefore, the CPU 30 controls to display the time obtained by adding one hour to the current time displayed on the time display 20 (step 15), and then turns off the summer time set flag 34 (step 16).

On the other hand, if the judgment in step 14 is NO, it means that the time that has been adjusted outside the summer time period has been displayed until now, so it is necessary to display the time that matches the summer time period in the subsequent summer time correction operation. There is. Therefore, the CPU 30 performs correction control at a time that is one hour ahead of the current time displayed on the time display section 20 (step 1
7) After that, the summer time set flag 34 is turned on (step 18).

By the above-described operations, the second summer time correction operation after the power supply of this watch is turned on is completed. It should be noted that the third and subsequent daylight saving time correction operations can be similarly performed by shifting from step 6 to step 14, that is, in the second and subsequent daylight saving time correction operations, depending on whether or not the summer time set flag 34 is ON. , It becomes possible to automatically perform the time correction opposite to the previous time advance correction or the time delay correction.

Here, when the time adjustment key 22 is properly used for two modes, that is, the setting of the time adjustment mode which is the original control content and the setting for the summer time correction, the key 22 is continuously operated for 3 seconds or more. It distinguishes by whether or not. In this case, when the user operates the time adjustment key 22 with the intention of setting the time adjustment mode, it is unlikely that the key 22 will be operated continuously for 3 seconds or more. Moreover, the key 22 is operated. After that, since a blinking display indicating the time adjustment mode is displayed, it is possible to reliably prevent the operation for correcting the summer time from being mistakenly performed. Further, the timepiece with the summer time function according to the present embodiment is not limited to being used by the area where the summer time system is introduced, but can be used in the area where this system is not adopted. That is, in this embodiment, since the time adjustment key 22 which is an existing key is also used for the correction of the summer time, no change is required on the appearance of the timepiece,
Moreover, the correction of the summer time when the key 22 is operated is performed only when the key 22 is operated for a time of 3 seconds or more, which is very unlikely to be operated normally. Unless the daylight saving time correction function is explicitly specified in, etc., it is possible to reliably prevent the daylight saving time correction mode from being set by mistake in an area where the summer time system is not introduced.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.

First, as a characteristic configuration of the present invention, the existing time adjustment key is also used for correcting the summer time.
This key is not limited to the time adjustment key 22 as in the above embodiment. In addition, the same key is used for distinguishing between the original control content and the correction of summer time depending on whether this key has been operated for a predetermined time or longer. It is not limited to 3 seconds as in the example.
Note that if this time is set too short, it often happens that mistakenly shifts to summer time correction. Conversely, if this time is set too long, the setting operation for summer time correction becomes complicated. To determine the optimal time.

[Advantage of Device] As described above, according to the present invention, since the existing key is also used for the daylight saving time correction operation, no change is required in appearance and it is necessary to store calendar information and the like. Since it is not always necessary, it is possible to realize the summer time function while maintaining the cost reduction of the watch.
Furthermore, according to the watch with the summer time function of the present invention,
In addition to not requiring any change in appearance, the watch does not adopt the summer time system even if this key is used because the daylight saving time correction operation is performed only when the above keys are operated for a predetermined period of time. Even when used in the local area, it is possible to prevent the user from mistakenly making daylight saving time corrections by setting the above time appropriately.For example, by distinguishing the instruction manual etc., this watch can be used for daylight saving time system. It is possible to sell in both the adoption area and the non-adoption area, and it becomes possible to further promote the cost reduction of the watch by sharing the parts.

[Brief description of drawings]

FIG. 1 is a block diagram of a timepiece with a summer time function to which the invention is applied, FIG. 2 is a flow chart for explaining the operation contents of the CPU in FIG. 1, and FIG. 3 is a timepiece shown in FIG. FIG. 8 is a schematic explanatory diagram for explaining blinking display of time when the summer time is corrected for the first time. 18 …… Display drive unit, 20 …… Time display unit, 22 …… Time adjustment key, 30 …… Control means (CPU), 32 …… Daylight saving time function set flag, 34 …… Daylight saving time set flag, 40 …… Timekeeping unit .

Claims (2)

[Scope of utility model registration request] 1. A timepiece having a time display section and a time adjustment key, the time adjustment means for measuring the time during which the time adjustment key is continuously operated, and the time adjustment means based on the output of the time adjustment means. When the key is released within a predetermined time, the original time adjustment operation of the key is controlled, and when the key is operated for a predetermined time or longer, the summer time correction operation is controlled. The control means is provided, the control means, when the time adjustment key is operated for the first time over a predetermined time or more, alternately displays each time before and after a certain time before the current time, The display time at that time is selectively controlled by releasing the time adjustment key, and thereafter, every time the time adjustment key is operated for a predetermined time or more, the time is adjusted in the opposite manner to the previous time advance correction or time delay correction. Control Clock daylight saving time function, characterized in that it is configured as. 2. The time adjustment key is a time adjustment key for setting the time adjustment mode, and the control means displays the time adjustment mode within a predetermined time after the key is operated. A part of the time display section blinks,
The timepiece with a summer time function according to claim 1, wherein the alternate display is performed after a lapse of a predetermined time.