JP2666948B2 - Electronic clock with measuring function - Google Patents

Description

The present invention relates to an electronic timepiece having a timer function and a stopwatch function.

[Conventional technology]

2. Description of the Related Art Conventionally, in an electronic timepiece having a timer function and a stopwatch function, two functions are often provided independently.

Therefore, when operating each function, a necessary function is called by 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, in the stopwatch function, the stopwatch function is also called and a start operation or a stop operation is performed.

[Problems to be solved by the invention]

When the timer function or the stopwatch function is independent of each other, it is convenient to measure time suitable for each function.

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

However, even if it has a timer function and a stopwatch function, it may be insufficient for time measurement if each function is independent.

One example is yachting. For yacht competitions, a start notice will be given a certain time before the start time. Then, after a certain period of time, each yacht will start with a signal to start.

However, if there is a flying at the time of starting, the starting is started again after a certain time, and this is repeated each time.

From the above, if the two functions are independent, operation of the timer function is required before the start, operation of the stopwatch function is required after the start, the stopwatch function is called at the start, and the start It had to be operated and was very difficult.

To solve this problem, some watches have a function to automatically start the stopwatch function in synchronization with the expiration of the timer function, and some clocks have facilitated operation.However, if flying occurs at the start, There was a trouble that the stopwatch function had to be stopped and the timer function had to be operated again.

An object of the present invention is to solve the conventional problems as described above and to provide an electronic timepiece that can be easily operated when time measurement of a timer function and a stopwatch function is required, such as in a yacht competition. I have.

[Means for solving the problem]

To achieve the above object, the present invention has the following configuration.

That is, the electronic timepiece with a measuring instrument function of the present invention performs a repeat operation according to a preset timer time, thereby timer means for repeatedly generating a time-up signal, and counting elapsed time using the time-up signal as a start signal. Elapsed time measurement circuit, signal selection means for validating the time-up signal as a start signal only when the elapsed time measurement circuit is in a reset state,
Restart instruction means for forcibly resetting the elapsed time measurement circuit is provided. By operating the restart instruction means, the elapsed time measurement circuit is forcibly reset and then restarted by a time-up signal generated first. It is characterized by starting.

〔Example〕

 Hereinafter, the present invention will be described with reference to the drawings.

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

Each figure (A)-(F) shows each state when operating the timepiece. In the figure, 1 is a watch case, 2 to 5
Is a push button provided on the watch case 1, and 6 is a display unit composed of a liquid crystal display panel.

FIG. 9A shows a state in which the timer function is called. When the timer function is called by operating the push button 4, the display section 6 displays a timer mode mark 6a indicating the timer function, a preset time 6b, and a time display 6c.

(B) The figure shows the set time 6b when the push button 2 is operated.
Is set to a set time (10 minutes) which is a predetermined timer time. (C) is a diagram showing the remaining time 6d (5 minutes) by operating the push button 3 in FIG.
(37 seconds 25) is displayed, (D) is a state in which the timer function has timed out, (E) is a stopwatch function automatically started in synchronization with the time-up, and the display unit 6 displays the stopwatch Stopwatch mode mark 6e indicating function, elapsed time measured by stopwatch function
6f (2:34:56) is displayed.

(F) shows a state in which the push button 2 is operated in the (E) in which the stopwatch function is operating. With this operation, the display contents are changed from the stopwatch mode mark 6e to the timer mode mark 6a and the elapsed time 6f
(2:34:56) is switched to the remaining time 6d (7:25:44).

Here, the remaining time 6d is a value obtained by subtracting the elapsed time 6f from the set time 6b. Thereafter, a similar process is followed.

The push button 5 is for lighting a lamp that illuminates the display unit 6.

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

In the drawing, switches 7, 8, and 9 are switches, which correspond to the push buttons 2, 3, 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), 13 is a timer subtraction register which is timer means, and 14 is a time up which is signal selection means. It is a counting counter.

Reference numeral 15 denotes an elapsed time measurement circuit, 16 denotes a display switching circuit, 17 denotes a decoder, 18 denotes a driver, and 19 denotes a display unit composed of a liquid crystal panel.

In the above configuration, 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 same contents as the set time storage circuit 11 are set in the timer subtraction register 13. At this time, the set time of the timer is displayed on the display unit 19 via the display switching circuit 16.

Next, when the switch 8 is operated, the subtraction of the timer subtraction register 13 is started by the clock signal of the reference signal generation circuit 12, and the remaining time is displayed.

Thereafter, when the timer expires, the timer decrement register 13 is reset by the time-up signal, and the timer decrement register 13 performs a repeat operation according to a preset timer time, and repeatedly generates a time-up signal.

On the other hand, the time-up counter 14 detects the time-up signal, and only when the elapsed time measuring circuit 15 is in the reset state, selects and outputs the time-up signal as a valid start signal, and outputs the elapsed time measuring circuit 15. Start. The timer subtraction register 13 and the elapsed time measuring circuit 15 both measure.

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

In this way, the display of the remaining time of the timer function automatically becomes the elapsed time display of the stopwatch function simultaneously with the time-up.

 Next, the case where there is flying will be described.

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

When the switch 7 serving as the restart instruction means is operated in this state, the display switching circuit 16 is switched, and the contents of the timer subtraction register 13 are displayed.

Furthermore, a time-up counting counter 14, an elapsed time measuring circuit
15 is reset and stops measuring elapsed time. In this way, it is possible to prepare for a restart with a single switch operation at any time after flying. That is, the elapsed time measurement circuit 15 is restarted by the first time-up signal after the forced reset. Then, the time-up counting counter 14
Indicates that, after the elapsed time measurement circuit 15 starts, the time-up signal repeatedly generated by the timer subtraction register 13 is an invalid start signal.

That is, after the start of the elapsed time measurement circuit 15 and the switching of the display content are performed by the first time-up signal, the same situation is prevented by the second and subsequent time-up signals.

〔The invention's effect〕

As described above, when measuring time with the timer function and stopwatch function in a yacht competition, if the normal timer function and stopwatch function are provided independently, the stopwatch function will be operated at the start It is difficult to perform the measurement correctly, and the measurement cannot be started correctly, which may cause a measurement error.

In addition, if the function of eliminating the switch operation at the time of start is simply performed by linking the timer function and the stopwatch function, it is sufficient if there is only one start without flying, but to restart again by flying, It becomes complicated because the timer function and stopwatch function must be operated.

According to the present invention, if the timer function is started together with the advance notice signal, the stopwatch function is automatically started when the time is up, and the display is also switched to the elapsed time. Further, even in the restarting of the flying, the switch operation may be performed once as needed, which is very effective in practice.

Furthermore, if zero setting is provided for the set time of the timer function,
Since it can also be used as an independent stopwatch function,
It does not hinder time measurement other than yacht competition.

[Brief description of the drawings]

1 (A) to 1 (F) are plan views 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, 3, 4, 5 ... push button, 6, 19 ... display, 6b ... set time, 6d ... remaining time, 6f ... elapsed time, 7, 8, 9 ... switch, 11 ... Set time storage circuit, 12: Reference signal generation circuit, 13: Timer subtraction register, 14: Time-up counting counter, 15: Elapsed time measurement circuit, 16: Display switching circuit.

Claims (1)

(57) [Claims] A timer means for repeatedly generating a time-up signal by performing a repeat operation in accordance with a preset timer time; an elapsed-time measuring circuit for counting an elapsed time using the time-up signal as a start signal;
Signal selection means for validating the time-up signal as a start signal only when the elapsed time measurement circuit is in a reset state, and restart instructing means for forcibly resetting the elapsed time measurement circuit; An electronic timepiece with a measuring function, characterized in that the elapsed time measuring circuit is forcibly reset by operating a start instruction means, and then restarted by a time-up signal generated first.