JPH01217290A - Electronic timepiece - Google Patents

Abstract

PURPOSE:To facilitate the operation in a yachting race, by organically coupling body of timer function and stopwatch function. CONSTITUTION:When a switch 9 is operated to set a timer mode and a switch 7 is operated, the setting time of a timer is set to a set time memory circuit 11. Further, the same content as the set time memory circuit 11 is set to a subtraction register 13. At this time, the set time of the timer is displayed on a display part 19 through a display change-over circuit 16. Next, when a switch 8 is operated, the subtraction of a timer subtraction register 13 is started by the clock signal of a reference signal generating circuit 12 and the residual time is displayed. A time-up counter 14 detects a time-up signal to start an elapse time measuring circuit 15. Both of the timer subtraction register 13 and the elapse time measuring circuit 15 perform measurement. The time-up counter 14 changes over display content to the elapse time measuring circuit 15.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic timepiece having a timer function and a stopwatch function.

[Conventional technology]

Conventionally, in electronic watches having a timer function and a stopwatch function, the two functions are often provided independently.

Therefore, when operating each function, the necessary function is called up using an external operation member, and in the case of a timer function, a set time is set in advance, and a start operation is performed. On the other hand, when using the stopwatch function, the stopwatch function is also called up and a start operation, a stop operation, etc. are performed.

[Problem to be solved by the invention]

If the timer function or stopwatch function is independent, it is convenient to measure time appropriate for each function.

For example, if a timer function is used to measure the remaining time for soccer, etc., and a stopwatch function is used to measure the time for jogging, etc., each time can be sufficiently measured.

However, even if it has a timer function and a stopwatch function, if each function is independent, it may not be sufficient for time measurement.

An example of this is sailing competitions. In sailing competitions, the start is announced a certain amount of time before the start time. After a certain period of time, each yacht will start with the start signal.

However, if there is a flying error at the start, the race will start again after a certain period of time, and this process will be repeated each time.

From this point on, if the two functions are independent, the timer function must be operated before the start, the stopwatch function must be operated after the start, and the stopwatch function must be called at the start. [2. I had to perform a starting operation, which was extremely difficult.

To solve this problem, some watches are equipped with a function that automatically starts the stopwatch function in synchronization with the timer function time-up, making it easier to operate.
If a flying error occurred during the start, the stopwatch function had to be stopped and the timer function had to be operated again, which was a hassle.

The purpose of the present invention is to solve the above-mentioned conventional problems and provide an electronic timepiece that can be easily operated when time measurement with a timer function and a stopwatch function is required, such as in yachting competitions. There is.

[Means to solve the problem]

In order to achieve the above object, the present invention has the following configuration.

That is, the electronic timepiece according to the present invention has a timer function and a stopwatch function, and the stopwatch function automatically starts in synchronization with the time-up of the timer function, and at the same time, the display contents are changed.

Thereafter, by resetting the stopwatch function, etc., the display contents are switched again to the timer function display.

At this time, the timer function displays the remaining time based on the elapsed time measured by the stopwatch function, making it possible to restart after flying.

〔Example〕

The present invention will be explained below based on the drawings.

FIG. 1 is a plan view of an electronic timepiece showing an embodiment of the present invention.

Each figure + A1 ~ (Fl indicates each state when the watch is operated. In the figures, 1 is the watch case, 2 to 5 are the button buttons provided on the watch case 1, and 6 is the liquid crystal display panel. The display section consists of:

The FAI diagram is in a state where the timer function has been called. When the timer function is called up by operating the pushbutton 4, a timer mode mark 6a indicating the timer function is displayed on the display section 6.
The set time 6b and time display 6C that have already been set are displayed.

Figure 481 shows the set time 6b by operating pushbutton 2.
is set to a predetermined set time (10 minutes). F
Figure e2 (In Figure 481, operate the button 6 to operate the timer function and set the remaining time to 6d (5 minutes 37 seconds 25 seconds).
) is displayed, (J)) is a state in which the timer function has timed up, FE1 is a state in which the stopwatch function automatically starts in synchronization with the time up, and display section 6 is in stopwatch mode showing the stopwatch function. Mark 6e, elapsed time measured by the stopwatch function 6
f (2 minutes 34 seconds 56) is displayed.

Figure +F1 shows the state in which the button 2 is operated in the old figure in which the stopwatch function is in operation. With this operation, the display contents change from the stopwatch mode mark 6e to the timer mode mark 6a and the elapsed time 6f (2
minutes 34 seconds 56) changes to remaining time 6d (7 minutes 25 seconds 44).

Here, the remaining time 6d is the elapsed time 6f from the set time 6b.
It is the value after subtracting . After this, the same process will follow.

Note that the button 5 is used to turn on a lamp for illuminating the display section 6.

FIG. 2 is a block diagram of a circuit implementing the present invention.

In the figure, numerals 7, 8, and 9 are switches, which correspond to the switches 2, 6, and 4 in FIG. 1, respectively. 10 is a switch circuit, 11 is a set time storage circuit, 12 is a reference signal generation circuit composed of a crystal oscillator (not shown), and 16
is a timer subtraction register, and 14 is a time-up counter for detecting and counting the time-up signal of the timer subtraction register 16.

15 is an elapsed time measuring circuit, 16 is a display switching circuit, 17 is a decoder, 18 is a driver, and 19 is a display section consisting of a liquid crystal panel.

In the configuration as described above, when the switch 9 is operated to switch to the timer mode and the switch 7 is operated, the set time of the timer is set in the set time storage circuit 11.

Furthermore, the timer subtraction register 16 includes a set time storage circuit 11.
The same content is set. At this time, the display switching circuit 16
The set time of the timer is displayed on the display section 19 via.

Next, when the switch 8 is operated, the timer subtraction register 16 starts subtraction by the clock signal of the reference signal generation circuit 12, and the remaining time is displayed.

After that, when the timer times up, the timer subtraction register 16 is reset by the time-up signal and restarted.

On the other hand, the time-up counter 14 detects the time-up signal and starts the elapsed time measuring circuit 15 in synchronization with only the first time-up signal. Both the timer subtraction register 16 and the elapsed time measuring circuit 15 perform measurement.

Further, the time-up counter 14 is connected to a display switching circuit 16.
, and switches the display content to the elapsed time measuring circuit 15.

In this way, the remaining time display of the timer function automatically becomes the elapsed time display of the stopwatch function at the same time as the time is up.

Next, I will explain what happens when flying occurs.

The fact that flying has occurred means that the timer subtraction register 13 has already timed up, the elapsed time measuring circuit 15 is activated, and the elapsed time is displayed.

When switch 7 is operated in this state, display switching circuit 16
The contents of the timer subtraction register 16 are displayed.

Furthermore, the time-up counter 14 and elapsed time measuring circuit 15 are reset to stop measuring elapsed time.

In this way, it is possible to prepare for a restart at any time after flying with a single switch operation. Here, the time-up counter 14 also prevents the timer subtraction register 16 from malfunctioning due to repeated time-ups.

That is, after the elapsed time measuring circuit 15 is started and the display contents are switched by the first time-up signal, the same thing is prevented from occurring with the second and subsequent time-up signals.

〔Effect of the invention〕

As explained above, when measuring time using the timer function and stopwatch function in sailing competitions, if the normal timer function and stopwatch function are provided independently, the stopwatch function must be operated at the start. It is difficult to start the correct start, which can lead to measurement errors.

Also, if you simply link the timer function and stopwatch function to eliminate the need to operate a switch when starting, it is fine as long as there is no flying and only one start, but for restarting by flying, The operation of the timer function and stopwatch function becomes complicated.

According to the present invention, if the timer function is started with a warning signal, the stopwatch function will automatically start when the time is up, and the display will change to the elapsed time.Furthermore, even when restarting during flying, the stopwatch function will automatically start when the time is up. It is only necessary to operate the switch once, which is very effective in practice.

Furthermore, if the timer function is set to zero, it can be used as an independent stopwatch function, so there is no problem in measuring time for purposes other than yachting.

[Brief explanation of the drawing]

Fig. 1 +Al~ (Fl is a plan view of an electronic timepiece showing an embodiment of the present invention, and Fig. 2 is a block diagram of an implementation circuit of the present invention. 2.6.4.5... Shbotan, 6.19
...Display section, 6b...Setting time, 6d...Remaining time, 6f...Elapsed time, 7.8.9...Switch , 11...Setting time storage circuit, 12...Reference signal generation circuit, 16...Timer subtraction register, 14...
- Time-up counter, 15...Elapsed time measuring circuit, 16...Display switching circuit.

Claims (1)

[Claims] a first storage circuit that stores a set time by operating an external switch; a subtraction register that counts the reference signal output from the reference signal generation circuit and subtracts the set time, and generates a time-up signal when the set time is measured; a second storage circuit for storing the number of times of the time-up signal; an elapsed time measuring circuit for counting the reference signal and elapsed time; and a display switching circuit for switching and displaying measurement data from the subtraction register and the elapsed time measuring circuit. The subtraction register is reset and restarted for each time-up signal, and the elapsed time measurement circuit is started in synchronization only with the first time-up signal, and the elapsed time is measured from the contents of the subtraction register. An electronic timepiece characterized in that the display is switched to the contents of the circuit, and the display is switched to the contents of a subtraction register by operating an external switch while the elapsed time is being displayed, and the elapsed time measuring circuit and the second memory circuit are reset.