JP2723536B2 - Electronic watch with stopwatch - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electronic timepiece system having a stopwatch function.

[Related Art] Conventionally, many electronic watches having a stopwatch function are commercially available. Also, in these electronic timepieces, the operation of shifting to the state of correcting the time of the time / calendar function does not shift to the state in which correction can be performed unless the correction selection button is kept pressed, or the electronic timepiece shifts to the correction state. A function to prevent erroneous operation by pressing the dedicated button of the, etc. is included.However, for the operation to select the functions that are regarded as the same, such as the time / calendar function, the alarm function, the stopwatch function, etc. The moment the button was pressed, it shifted to another function.

[Problems to be Solved by the Invention] However, such as a stopwatch function, a user uses his / her arm to perform a sport such as jogging or skiing and to record the sport. When the function switch button was accidentally pressed due to the bending of the wrist while in the other function state at the time of goal-in, even if the stop operation was performed, the stopwatch could not be stopped very often. ing. Also, in the case of a stopwatch for skiing, when the start operation is performed and the stopwatch automatically starts after a predetermined time elapses with the advance notice timer, the advance notice timer prepares for the start during operation, but during that time an error occurs. If you press the function switching button, correct measurement will not be performed.

An object of the present invention is to provide an electronic timepiece with a stopwatch that prevents a malfunction that does not switch to another function unless the user operates the function switching button consciously.

Means for Solving the Problems In order to achieve the above object, the present invention provides an electronic timepiece with a stopwatch having a stopwatch function.
Elapsed time measurement means for measuring the elapsed time, measurement start control means for controlling the start of measurement by the elapsed time measurement means, state determination means for determining the operation state of the elapsed time measurement means and the measurement start control means A stopwatch function circuit, another function circuit for notifying time, calendar information, and the like; a function switching operation means for switching and selecting the stopwatch function circuit and the other function circuit; and a function switching operation of the function switching operation means. Switching control means for controlling, when the function switching operation means is operated to shift from the stopwatch function circuit to the other function circuit, the elapsed time measuring means or the measurement start control is performed by the state determination means. When it is determined that the means is in the operating state, the switching control means is controlled to operate the function switching operation means for a predetermined time. There has been characterized by transposing to look at the other function of time was continued.

Examples Examples of the present invention will be described below in detail with reference to the drawings. First
FIGS. 2 and 3 show an electronic timepiece with a stopwatch according to an embodiment of the present invention. FIGS. 2A to 2D are plan views showing display states of the electronic timepiece with a stopwatch. FIG. 2 (a) is a plan view showing a normal display state of time and calendar, FIG. 2 (b) is a plan view showing a reset display state of a stopwatch, and FIG. 2 (c) is a notice start timer. FIG. 2D is a plan view showing the run state of the stopwatch measurement. FIG. 1 is a system block diagram for implementing the display states of FIGS. 2 (a) to 2 (d). First, FIG. 2 will be described.
2 (a) to 2 (d), reference numeral 1 denotes a display device. The display device 1 includes a first display section 1a formed of a 4-digit 7-segment row and a 2-digit 8-segment row, and a second display section 1b formed of a 6-digit 7-segment row.
In FIG. 2A, the first display section 1a displays Monday and Sunday as "Monday, December 25". The four digits of December 25 are composed of seven segments, and the Monday is displayed. Two digits of alphanumeric are displayed in 8 segments. S1
Indicates a start / stop switch of a stopwatch. S2 is a function switching switch for switching between a stopwatch function and a time / calendar function as a function switching operation means. S3 is a correction digit selection switch for selecting a correction digit of the time in the time / calendar function. S4 is a correction switch for inputting correction data. 2 (a), the first display section 1a displays "Monday, December 25" and calendar information, and the second display section 1b, as described above. Indicates "11:58:25" and the time information. That is, FIG. 2A shows a normal display state of the time / calendar function. FIG. 2 (b) shows "11:59:26" and time information on the second display 1b, and "00:00:00" reset display of the stopwatch function on the first display 1a. ing. Fig. 2 (c)
Indicates the time information on the second display section 1b as "11:55:48"
And the remaining time of an advance notice start timer, which will be described later, is displayed on the first display section 1a as "26 seconds" using the center two digits of the six-digit display digit in units of seconds. This indicates that it is 26 seconds from now until the stopwatch measurement starts in the stopwatch function. FIG. 2 (d) shows stopwatch measurement information on the first display section 1a, and also displays time information on the second display section 1b.
That is, FIG. 2 (d) shows a run state of the stopwatch function. Therefore, the electronic timepiece with a stopwatch of the present embodiment, as shown in FIG. 2 (a), displays the time information on the lower second display 1b and the calendar information on the upper first display 1a. Then, as shown in FIGS. 2 (b) to 2 (d), the lower second display section 1b always displays time information, and the upper first display section 1a
Each state of the stopwatch function is displayed. In particular, as shown in FIG. 2 (c), when the notice start timer is in the run state, only the remaining seconds are displayed at the center so that it is clearly apparent that the notice start timer is clearly different from the stopwatch measurement run state.

Next, an operation system of the electronic timepiece with a stopwatch of the present embodiment will be described with reference to FIG. The symbols used in FIG. 2 have the same role in FIG. Reference numeral 2 denotes a first display switching circuit. The first display switching circuit 2 is for switching the display content of the display device 1 as described in FIG.
Among D, the time information is output to the second display unit 1b of the display device 1. When the stopwatch function signal STM is not input, the first display switching circuit 2 outputs the time / calendar information TKD to the first display section 1a of the display device 1 as described with reference to FIG. Although the calendar information is output, when the stopwatch function signal STM is input, the second display data D2 described later is output. Reference numeral 3 denotes a second display switching circuit. Second
Normally, the display switching circuit 3 outputs the stopwatch display data SDD as the second display data D2 and, when the notice start timer run signal YTR is input, outputs the notice start timer display data YDD as the second display data D2. 4
Are reference signals (φ1, φ2, φ3,
φ4). 5 is S1 switch pulse SP when start / stop switch S1 is turned on
Is output. 6 is a switch control circuit. When the stopwatch function signal STM is not input and the time / calendar function is displayed, the switch control circuit 6 corrects the time / calendar information with the correction digit selection switch S3 and the correction switch S4.
Is controlled to output the ON signal. Reference numeral 7 denotes a time counting function circuit that counts the reference signal (φ1) and outputs from the second digit display data to the year digit display data of the time / calendar information TKD. In this embodiment, a time counting function circuit 7 is used as a function circuit other than the stopwatch function. Reference numeral 8 denotes a stopwatch state determination circuit as a state determination unit. The stopwatch state determination circuit 8
Each state of the stopwatch function is determined from the notice start timer run signal YTR, the stopwatch function signal STM, and the stopwatch counter run signal SCR. That is, when the stopwatch function signal STM is not input, the first state signal ST1 is output, and when the stopwatch function signal STM is input, the notice start timer run signal Y
When the TR and the stopwatch counter run signal SCR are not input, the second state signal ST2 is output. Further, when the notice start timer run signal YTR is inputted, the third state signal ST3 is outputted. Next, when the input of the notice start timer run signal YTR stops and the stopwatch counter run signal SCR is input, the fourth state signal ST4 is output. Reference numeral 9 denotes an advance timer start FF circuit which outputs an advance start timer run signal YTR in response to the input of the start signal STA and forcibly cancels the output of the advance start timer run signal YTR to the input of the R terminal. Reference numeral 10 denotes a notice start timer set to 30 seconds. Notice start timer 10
While the notice start timer run signal YTR is being input, the timer counts down from the set value of 30 seconds according to the reference signal (φ3), and outputs the notice timer time-up signal YTU when the time is up. 11 is the notice timer time-up signal Y
When TU is input, stopwatch counter run signal SC
This is a stopwatch counter control circuit that outputs R and stops the output of the stopwatch counter run signal SCR in response to input from the R terminal. B is a measurement start control unit. The measurement start control means B comprises a notice timer start FF circuit 9, a notice start timer 10, and a stopwatch counter control circuit 11. 12 is a stopwatch counter. The stopwatch counter 12 counts the reference signal (φ4) during the input of the stopwatch counter run signal SCR, and outputs the measurement data STD. The stopwatch counter 12 starts counting time from the reset state simultaneously with the input of the stopwatch counter run signal SCR. Reference numeral 13 denotes a latch circuit that latches the measurement data STD output from the stopwatch counter 12 to the stopwatch display data SDD. A is an elapsed time measuring means. The elapsed time measuring means A is a stopwatch counter
It is composed of 12 and a latch circuit 13. 14 is a function switching timer. While the function switching timer 14 is receiving the function switching signal S22 output from the AND gate 17, the reference signal (φ2)
Is counted, and when a predetermined time (for example, 2 seconds) elapses, a function switching pulse MP1 is output. The function switching timer 14
When the input of the function switching signal S22, which is the output from the AND gate 17, is stopped before the output of the function switching pulse MP1, the counting of the reference signal (φ2) is stopped and the value returns to the set value. 15 is
It is a function switching circuit. The function switching circuit 15 repeats the output of the stopwatch function signal STM and the stop of the output each time the output of the OR gate 22 is input. 16 is the output S21 of the AND gate 18
, A function switching pulse generation circuit that outputs a function switching pulse MP2. 17-21 is an AND gate, 22-25
Is an OR gate. C is a function switching control unit.
The function switching control means C includes a function switching timer 14, a function switching circuit 15, a function switching pulse generation circuit 16, an AND gate 17, an AND gate 18, and an OR gate 22.

Next, the operation will be described. Starting from the normal display state of the time / calendar function shown in FIG. 2A, in this state, since the stopwatch function signal STM is not output, the stopwatch state determination circuit 8 outputs the first state signal ST1. ing. Also, the first display switching circuit 2
In the same manner, since the stopwatch function signal STM is not input, the time
The calendar information TKD is output to the display device 1, and the calendar information is displayed on the first display unit 1a as shown in FIG.
The second display unit 1b displays time information. At this time, when the time / calendar information TKD is corrected, the ON signal of the correction digit selection switch S3 via the switch control circuit 6 is used.
The digit to be corrected is selected, and the digit can be corrected by the ON signal of the correction switch S4 in the same manner as a conventional electronic timepiece in which the digit is corrected. When the stopwatch function signal STM is output, the switch control circuit 6
Is the ON signal of the correction digit selection switch S3 and the correction switch S4.
Stop passing the ON signal. Next, the stopwatch reset display state shown in FIG. 2B will be described.
First, from the normal display state of the time / calendar function shown in FIG. 2A, the function changeover switch S2 is turned on. At this time, since the stopwatch state determination circuit 8 outputs the first state signal ST1, the first state signal ST1 opens the AND gate 18 via the OR gate 25. Function changeover switch S2
Signal passes through the AND gate 18 and is input to the function switching pulse generation circuit 16 as an output S21. The function switching pulse generation circuit 16 generates a function switching pulse MP2, and the function switching pulse MP2 is input to the function switching circuit 15 via the OR gate 22. As a result, the function switching circuit 15 outputs the stopwatch function signal STM. If neither the notice start timer run signal YTR nor the stopwatch counter run signal SCR is output, the stopwatch state determination circuit 8 stops outputting the first state signal ST1 and outputs the second state signal ST2. Output. On the other hand, the output of the stopwatch function signal STM causes the first display switching circuit 2 to display the second display data on the first display section 1a of the display device 1 as shown in FIGS. 2 (b) to 2 (d). D2 is displayed, and the time / calendar information TKD is displayed on the second display 1b.
Is switched to display only the time information in. Now, it is assumed that the notice start timer run signal YTR is not being output and the stopwatch counter 12 is in a reset state. Therefore, the second display switching circuit 3 outputs the stopwatch display data SDD as the second display data D2. That is, the reset value of the stopwatch counter 12 is output as the second display data D2,
"00:00:00" is displayed on the display section 1a as shown in FIG. 2 (b). Here, the start / stop switch S1 is turned on
Then, the display state shown in FIG. First, since the stopwatch state determination circuit 8 is outputting the second state signal ST2, the AND gate 21 is open. When the start / stop switch S1 is turned on, the one-shot circuit 5 which has input the ON signal turns on the S1 switch pulse.
Output SP. The S1 switch pulse SP passes through the AND gate 21 and is output from the AND gate 21 as a start signal STA. The start signal STA is sent to the notice timer start FF circuit 9
To enter. Thereby, the notice timer start FF circuit 9
Outputs a notice start timer run signal YTR. In response to the output of the notice start timer run signal YTR, the stopwatch state determination circuit 8 stops outputting the second state signal ST2 and outputs the third state signal ST3. Also, a notice start timer 10 for inputting the notice start timer run signal YTR
Starts counting down from a set time (for example, 30 seconds) based on the reference signal (φ3). Therefore, the notice start timer 10 outputs the remaining time as notice timer display data YDD. On the other hand, the notice start timer run signal YT
The second display switching circuit 3 to which R has been input changes the notice timer display data YDD to the stopwatch display data SDD.
Output as display data D2. Then, as shown in FIG. 2 (c), advance notice timer display data YDD is displayed on the first display section 1a of the display device 1. Thereafter, when the time elapses and the notice start timer 10 times out, that is, when the set time of 30 seconds elapses, the notice start timer 10 outputs the notice timer time-up signal YTU. The notice timer time-up signal YTU is input to the R terminal of the notice timer start FF circuit 9 via the OR gate 23. Thereby, the notice timer start FF circuit 9 stops outputting the notice start timer run signal YTR. Here, the second display switching circuit 3 returns to the state of outputting the stopwatch display data SDD as the second display data D2. On the other hand, the advance timer time-up signal YTU is input to the stopwatch counter control circuit 11. Stopwatch counter control circuit 11
Outputs a stopwatch counter run signal SCR. The stopwatch counter 12 that has received the stopwatch counter run signal SCR starts counting the reference signal (φ4), and the elapsed time is input to the second display switching circuit 3 as stopwatch display data SDD by the latch circuit 13. Therefore, the stopwatch display data SDD
Is displayed on the first display section 1a of the display device 1 as shown in FIG. 2 (d). On the other hand, the input of the notice start timer run signal YTR is stopped, and the stopwatch state discriminating circuit 8 which receives the stopwatch counter run signal SCR is inputted.
Stops outputting the third state signal ST3, and outputs the fourth state signal ST4.
Is output. When the start / stop switch S1 is turned on while the fourth state signal ST4 is being output, the one-shot circuit 5
The S1 switch pulse SP output from the first through the second node passes through the AND gate 19 and is output as a stop signal SWP. Therefore, the stopwatch counter control circuit 11 inputs the stop signal SWP, and the stopwatch counter run signal SCR
Cancel the output of Thus, the stopwatch counter 12 stops counting the reference signal (φ4). Further, when the start / stop switch S1 is turned on while the third state signal ST3 is being output, that is, while the notice start timer 10 is counting down, the S1 switch pulse SP output from the one-shot circuit 5 causes the AND gate 20 to output. It passes and outputs as a notice start timer stop signal YTP. The notice start timer stop signal YTP resets the notice start timer 10 and inputs the signal to the R terminal of the notice timer start FF circuit 9 via the OR gate 23 to stop the output of the notice start timer run signal YTR. In other words, when the notice start timer run display state shown in FIG.
When the start / stop switch S1 is turned on, FIG. 2 (b)
The display returns to the stopwatch reset display state shown in FIG. Thus, a series of operations of the stopwatch function has been described. The stopwatch of the present embodiment is a notice start timer by the start operation of the start / stop switch S1.
10 starts operation, and after a lapse of a predetermined time, the stopwatch counter 12 starts, and starts measuring the elapsed time. Next, the operation of shifting from the stopwatch function state to the time / calendar function will be described. First, when the stopwatch is reset, that is, when the stopwatch state determination circuit 8 outputs the second state signal ST2,
When the function switch S2 is turned on, the second state signal ST2 is ORed.
The AND gate 18 is opened through the gate 25. Therefore, the AND gate 18 outputs the ON signal of the function changeover switch S2 to S
Output as 21 signals. Then, the function switching pulse generation circuit 16 that has received the S21 signal generates a function switching pulse MP2. The function switching pulse MP2 is input to the function switching circuit 15 via the OR gate 22. The function switching circuit 15 stops outputting the stopwatch function signal STM. Then, the stopwatch state determination circuit 8 enters the output state of the first state signal ST1. Next, when the function start switch S2 is turned on while the notice start timer 10 is in the run state, that is, while the stopwatch state determination circuit 8 is outputting the third state signal ST3,
The output of the third state signal ST3 outputs the ON signal of the function changeover switch S2 as the function changeover signal S22 in order to open the AND gate 17 through the OR gate 24. Function switching signal S
While the signal 22 is being input, the function switching timer 14 counts the reference signal (φ2), and outputs a function switching pulse MP1 when the input of the function switching signal S22 is continued for a predetermined time or more. The function switching pulse MP1 passes through the OR gate 22, is input to the function switching circuit 15, and stops the output of the stopwatch function signal STM. In other words, when the notice start timer 10 is in the run state,
If the function changeover switch S2 is ON for a predetermined time or more, the function shifts from the stopwatch function to the time / calendar function. When the stopwatch counter 12 is in the run state, that is, when the stopwatch state determination circuit 8 is outputting the fourth state signal ST4, the function switch S2 is turned on.
Then, in the same manner as when the third state signal ST3 is output, if the ON state continues for a predetermined time or longer, the stopwatch function signal
STM output stops. In other words, the notice start timer 10
Is in the run state or the stopwatch counter 12
When the user wants to shift to the time / calendar function by operating the function changeover switch S2 in the run state, if the function changeover switch S2 is turned on for the set time of the function changeover timer 14, the operation shifts to the time / calendar function. However, when the function changeover switch S2 is turned on when the notice start timer 10 and the stopwatch counter 12 are not in the run state, the operation immediately shifts to the time / calendar function by the ON signal.

[Effects of the Invention] As is apparent from the above description, according to the present invention, when time is measured for sports using the stopwatch function, for example, the wrist is bent sharply by mistake, or the clothes Even if it hits the function changeover switch S2 at the cuffs, even if the function changeover switch S2 is momentarily turned on, it does not shift to the time / calendar function, the stopwatch function state is maintained, and the start stop switch S1 at the moment of the goal When the stop operation is performed by operating, time measurement is surely performed. In addition, when time is not measured by the stopwatch function, if the function changeover switch S2 is operated, it will be switched to the time / calendar function immediately.
Very convenient.

[Brief description of the drawings]

FIGS. 1 and 2 show an electronic timepiece with a stopwatch according to one embodiment of the present invention, and FIGS.
FIG. 2 (d) is a plan view showing each display state of the electronic watch with a stopwatch, FIG. 2 (a) shows a normal display state of time and calendar, and FIG. 2 (b) shows a stopwatch reset display. FIG. 2 (c) shows the run state of the notice start timer, and FIG. 2 (d) shows the run state of the stopwatch measurement. FIG. 1 shows the state of FIG. 2 (a) to FIG. It is a system block diagram for implementing each display state of FIG. DESCRIPTION OF SYMBOLS 1 ... Display apparatus 1a ... 1st display part, 1b ... 2nd display part 7 ... Time clock function circuit 8 ... Stopwatch state discrimination circuit 10 ... Notice start timer 12 ... Stopwatch counter 14 ... Function switching Timer A: elapsed time measurement means B: measurement start control means C: function switching control means

Claims (2)

(57) [Claims] An electronic timepiece with a stopwatch function having a stopwatch function, a stopwatch function circuit comprising: an elapsed time measuring means for measuring an elapsed time; and a state determining means for determining an operation state of the elapsed time measuring means. ,
Another function circuit for notifying time, calendar information, and the like; function switching operation means for switching and selecting the stopwatch function circuit and the other function circuit; and switching control for controlling a function switching operation of the function switching operation means. Means, and when the function switching operation means is operated to shift from the stopwatch function circuit to the other function circuit, the state determination means determines that the elapsed time measurement means is in the operating state. An electronic timepiece with a stopwatch, wherein the electronic control unit controls the switching control means and shifts to the other function only when the operation of the function switching operation means continues for a predetermined time. 2. The apparatus according to claim 1, further comprising: a measurement start control means for controlling a start of measurement of said elapsed time measurement means, wherein said function switching operation means is operated when shifting from said stopwatch function circuit to said another function circuit. When the state determination unit determines that the measurement start control unit is in the operating state,
2. The electronic timepiece with a stopwatch according to claim 1, wherein the electronic control unit controls the switching control unit and shifts to the other function only when the operation of the function switching operation unit is continued for a predetermined time.