JPS6126954Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electronic watch, and particularly to time adjustment of an electronic watch.

An object of the present invention is to provide a configuration that allows independent adjustment of the day of the week and day of the week when using a rotary switch.

Conventionally, when making corrections by rotating a rotary switch, it was not possible to make corrections for each digit individually. Figure 1 shows an external view of an electronic wristwatch that uses a rotary switch (Reuse 1) to make adjustments.When Reuse 1 is pulled out and rotated to the right in the time display state, a correction signal is added from the minute digits to the hour digits. It is possible to adjust the hour and minute digits in a continuous manner by increasing the digits, but when adjusting the week and day, it becomes extremely difficult to adjust the week and day separately. . Figure 2a shows an example of the day of the week display.If you turn Reuse 1 clockwise to adjust the day of the week and rotate it counterclockwise to adjust the day, it is possible to adjust the day independently.However, in the display state of Figure 2a, It's hard to tell which one is being corrected, and it becomes very difficult to use. The present invention has been improved in view of these points, and will be described in detail below.

In the embodiment, the month, day, and day of the week are corrected, and in the portable state, the day and day of the week are displayed in the calendar mode as shown in FIG. 2a.
When the reuse 1 is pulled out in the week/day display state, the display becomes a correction state as shown in FIG. 2b, and the day of the week correction state is entered. If you look at this display, only the day of the month can be edited〓〓〓〓〓
It is clearly seen that. In this state, the day of the week when the reuse is rotated counterclockwise is added, and the day of the week is displayed. On the other hand, if the user rotates the reuse one click clockwise with the correction of the day of the week or the day of the week completed, the display changes to the month and day display as shown in FIG. 2c. However, in this state, the month and date have not been corrected yet, and by further rotating the reuse clockwise, the month and date can be corrected in conjunction with each other. Further, if the reuse is rotated one click to the left in the state shown in FIG. 2c, the display will again become the display shown in FIG. FIG. 3 shows an example of a display mode switching circuit and a correction signal forming circuit for realizing the present invention, which will be explained in detail using this circuit diagram and FIG. 4 showing signal waveforms of various parts of the circuit.

In Figure 3, 2 and 3 are switches that are opened and closed by the rotation of Reuse 1, switch 2 is a switch that is closed when Reuse 1 is rotated clockwise, and switch 3 is a switch that is closed when Reuse 1 is rotated counterclockwise. It is a switch that can be closed. Reference numerals 4 and 5 designate chattering prevention circuits that input signals from switches 2 and 3, respectively. 6 is an OR gate. 7 is a latch circuit, 8 is a NAND gate, and these 7 and 8
A differentiating circuit is constructed, and the input signals of switches 2 and 3 are differentiated. 9 is an R-S flip-flop, the signal from switch 2 is input to the reset terminal, the signal from switch 3 is input to the set terminal, and its output becomes "0" when the fuse 1 is rotated counterclockwise and switch 2 is closed. , when the reuse 1 is rotated counterclockwise and the switch 3 is closed, it becomes "1". Reference numeral 10 denotes a display mode switching control circuit comprised of a D-type flip-flop, which controls opening and closing of gate circuits 15 to 17 and switches display modes. AND gates 15, 16, and 17 are display mode switching circuits for switching display modes; 15 is the day of the week display state; 16 is the month/day display state;
17 designates the week/day display state. AND gates 18 and 19 are correction signal forming circuits for supplying correction signals; 18 outputs a day correction signal, and 19 outputs a month/day correction signal. Signal h is a clock signal input to latch circuit 7. Signal i is a signal whose state changes by operating Reuse 1 in the axial direction.
In the state in which the button is pushed in, modification is prohibited and the signal i is "0". The state in which the reuse 1 is pulled out is a state in which correction is possible, and the signal i becomes "1". Signal j is a signal specifying the display mode; when it is "1", it is the calendar display mode, and when it is "0", it is the time display mode.

Next, the operation will be explained.

When the reuse 1 is pushed in, modification is prohibited and the signal i is "0". The signal j is "1" in the calendar mode, the outputs of the AND gates 16 and 15 of the display mode switching circuit are "0", and the output of the correction signal forming circuit is "0".
AND gates 18 and 19 are inhibited and no correction signal is generated. At this time, the AND gate 17 becomes "1", indicating the week/day display mode, resulting in the display state shown in FIG. 2a. Then, when Reuse 1 is pulled out in this state, the calendar becomes corrected and the signal i becomes "1".
The output of AND gate 17 becomes "0", and D
Output e of type flip-flop 10 is "0"
Therefore, the output of AND gate 15 is "1",
The output of the AND gate 16 becomes "0" and the day of the week display state is entered, resulting in the display state shown in FIG. 2b.
In this state, when the reuse 1 is rotated clockwise, the switch 2 closes and the output of the chattering prevention circuit 4 becomes "1". Then, the output c of the R-S flip-flop 9 made up of a NOR gate becomes "0", and at the same time, the differential signal of the switch 2 is outputted by the differentiating circuit made up of the latch 7 and the NAND gate 8. Then, the output of the D-type flip-flop 10 that switches the display mode becomes "1" in synchronization with the fall of the differential signal d of the switch, the output of the AND gate 15 becomes "0", and the output of the AND gate 16 becomes "1". 1”.
As a result, the display state becomes the month/day display state shown in FIG. 2c. At this time, AND gates 18, 19
As shown in the timing chart of Figure 4,
Nothing is output due to the timing of signals c, d, and e. When Reuse 1 is rotated clockwise again, the differential signal d of switch 2 is output as before, and since signals c and e do not change at this time, a correction signal is output from AND gate 19, and the month and day are corrected. will be held. Next, when the reuse is rotated counterclockwise, the switch 3 is closed, the output of the chattering prevention circuit 5 becomes "1", the output c of the R-S flip-flop 9 becomes "1", and the differential signal d of the switch 3 becomes 〓〓〓〓
In synchronization with the falling edge, the output e of the D type flip-flop 10 becomes "0", and the AND gate 1
5 becomes "1", the AND gate 16 becomes "0", and the day of the week is displayed, resulting in the display state shown in FIG. 2b. At this time, the AND gates 18 and 19 do not output anything as described above. In this state, when the reuse is further rotated to the left, a correction signal is output from the AND gate 18, and the day of the week display is corrected. In other words, in the calendar correction method of the present invention, the reuse is rotated clockwise to correct the month and day, and rotated counterclockwise to correct the day of the month.However, when the reuse is turned clockwise from the day of the week display, only the display is displayed the first time. By switching, the correction signal is inhibited, and the subsequent clockwise rotation operation performs the correction. The same is true for counterclockwise rotation; when the display state is switched, the correction signal is prohibited and corrections are made in subsequent operations. By adopting this method, it is possible to make individual corrections by rotating clockwise or counterclockwise, and since the display is switched at that time, it is possible to easily determine the correction location.

In addition, this invention not only corrects the day of the week, month, and day, but also
It can be easily applied to correct the year, month, and day, and in the case of electronic wristwatches with an alarm, to correct the hour digits of the alarm setting time and independently correct the analysis.

As described above, the present invention provides an electronic timepiece that performs correction by switching correction digits depending on the rotational direction of an external operating member, which is provided with an R-S flip-flop and a display mode switching control circuit, and the correction signal forming circuit includes switch 2, 3, the output signal of the display mode switching control circuit is input together with the output signal of the R-S flip-flop, and when the rotation direction of the rotary switch is changed and the state of the R-S flip-flop is reversed, this rotation operation In this case, no correction signal is generated, and corrections are made only by subsequent rotational operations.

With this configuration, the user can make corrections without requiring any special operations to switch the display or confirm the corrected digit.

Furthermore, according to the present invention, if the user makes a mistake in the direction of rotation of the external operating member, the display is switched without immediately making a correction, so the user realizes that the direction of rotation is incorrect and prevents the erroneous correction from occurring. This has the advantage of being prevented.

[Brief explanation of the drawing]

FIG. 1 is an example of an external view of an electronic wristwatch with a rotary operation switch. FIG. 2 is a diagram showing the display state of the calendar of the electronic wristwatch. FIG. 3 shows a display mode switching circuit and a correction signal forming circuit according to the present invention. FIG. 4 is a timing chart of signals of each part in FIG. 3. 1... Rotary switch (reuse), 2, 3...
Switch, 4, 5...Chattering prevention circuit, 6
...OR gate, 7...Latch, 8...NAND gate, 9...R-S flip-flop, 10...
...Display mode switching control circuit, 11, 12, 13,
14... Inverter, 15, 16, 17, 18,
19...AND gate. 〓〓〓〓〓

Claims (1)

[Scope of utility model registration request] a rotary switch, a first switch means that is opened and closed by rotation of one side of the rotary switch, and a second switch means that is opened and closed by rotation of the other side of the rotary switch.
a differentiating circuit for differentiating the signals of the first and second switching means; an R-S flip-flop set by the signal of the first switching means and reset by the signal of the second switching means; a display mode switching control circuit which inputs the output signal of the flip-flop and switches the display mode after a time period corresponding to the pulse width of the output signal of the differentiating circuit has elapsed since the state inversion of the R-S flip-flop; The correction signal forming circuit includes a correction signal forming circuit for supplying a correction signal to the corresponding correction digit, and the differential signal of the differentiating circuit and the output signal of the R-S flip-flop are inputted to the correction signal forming circuit. An electronic timepiece characterized in that an output signal of the display mode switching control circuit is inputted to inhibit a correction signal from the first or second switch means when the output state of the flip-flop is reversed.