JPS60227191A - Preventing device for malfunction of touch switch for correction - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to the improvement of a watch having a correction touch switch, and in particular to the improvement of a watch having a correction touch switch which has been previously corrected by mistake. This is intended to prevent malfunctions at times.

(Prior art) Conventionally, Utility Model Application No. 58-52824, Utility Model Application No. 57-1
62590, it has been proposed to use a touch switch consisting of transparent electrodes entirely disposed on a display cover glass as a correction switch for a watch. This is because it has the advantage of having far fewer parts than ordinary mechanical switches, and satisfies the requirements for watches that aim to be low cost and thin.

However, since these correction touch switches are made of transparent electronic material, they are difficult to visually detect, are not thick, and have no feel, so users may accidentally use the correction switch for the digit to be corrected. I often ended up touching the correction touch switch for a digit that had already been corrected, resulting in the time being incorrect.

(Object of the Invention) The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to prevent erroneous correction of a watch having a touch switch for correction. In order to achieve the above purpose, we focused on the fact that the clock is normally adjusted by operating adjacent correction touch switches in order starting from the lower digit, and when a correction touch switch is operated, there is a If there is a touch switch for correction that has been operated, the operation of the switch is invalidated as the correction has already been completed and the operation is no longer necessary.

(Example) The present invention will be described in detail below based on the drawings.

FIG. 1 is a display configuration diagram of a touch switch old watch according to an embodiment of the present invention.

In the figure, an AM/PM table display section 4, a minute digit display section 10, and a second digit display section 12 are arranged from the left in the center of the display section 2, and each hour digit display section 6, ten minute digit display section i Part 82 minute digit display part 1
On the display cover glass at the bottom of the 0 and second digit display sections 12, there are touch switches 14 and 165 for correcting hour digits and touch switches 165 for correcting hour digits, respectively, corresponding to each display section.
Transparent electrodes are provided for a minute digit correction touch switch 18 and a second digit correction touch switch 20. Position display elements 22 to 28 indicating the position of each correction touch switch are provided on the display section 2 in the area where the transparent electrodes of each correction touch switch 14 to 20 are arranged.

On the cover glass at the left end of the display unit 2, a transparent electrode of a touch switch 30 for preventing malfunction is arranged to enable or disable the operation of the correction touch switch. FIG. 3 is a circuit diagram of a timepiece with a position display element indicating the position of the touch switch 30 in the area of FIG.

The oscillator 34 generates a reference signal for timekeeping, and the frequency divider 3
6 is a circuit that frequency-divides the reference signal and outputs an IHz signal φ1 and a modified signal φ2.

Second counter 389 Minute digit counter 40, 10 minute digit counter 421 Hour digit counter 44 and AMIPMM counter 46
counts the seconds, one minute digit, ten minute digit, hour digit, and AM-PM of the time using the IHz signal φ1.

Second counter 38, minute digit counter 409, minute digit counter 40, 10 minute digit counter 42, 10 minute digit counter 4
Correcting circuits 48, 50, and 52 having the same configuration are inserted between 2 and the hour digit counter 44, respectively. Each modification circuit includes an AND gate 54, 56 and an OR gate 58, respectively.
The AND gate 54 receives the carry signal from the lower digit counter, and the AND gate 56 receives the carry signal from the lower digit counter.
A correction signal φ2 is input to the input signal φ2.

A modified control signal B is input to the switching control input of this anime game) 54 and 56.

On the other hand, the count outputs of the second counter 389, the minute digit counter 40, the ten minute counter 42, the hour digit counter 44, and the AMePMM counter 46 are supplied to each time display section of the display section 2 via a decoder driver 60. A correction control signal B is input to the deflection position display elements 22 to 28 via a driver 62.

Signals from each correction touch switch 14 to 20 disposed on a display cover glass 64 covering the display section 2 are input to a capacitance detection circuit 66. This capacitance detection circuit 66
6 is a circuit that detects a change in capacitance due to touch operation of a transparent electrode and outputs an rHJ signal.
The operation signal A1 of the touch switch 30 for preventing malfunction via the trigger circuit 68 is inputted to the clock input φ of the FF 70 via the trigger circuit 68. The Q output of this FF70 is the modified control signal B
Therefore, every time the user touches the switch 30, the Q output of the FF 70, that is, the modified control signal Bbar
Flip to J or “L”.

- The operation signals A2 to A of the correction touch switches 14 to 20 via the actual capacity detection circuit 66 are the AND gate group 72.
Enter. A modified control signal B is input to the control input of this gate group 72, and the operation signals A2 to A are valid only when the signal B is rHJ.

AND gate group 72'fr: operation signal Ar A5 via
is input to AND gates 76 to 82 in gate circuit 74. Gate circuit 741''j: This is a circuit that disables a previously operated touch switch when it is operated again by a signal from a memory circuit described later. AND gates 76 to 8
Outputs 01 to G4 from the memory circuits are input to the respective memory circuits 2 and 2. Of the correction digit selection signals D1 to D4 from the AND gates 76 to 82, only the signal D1 is sent to the trigger circuit 9.
2 to the reset input R of the seconds counter 38, and the signals D2-D4 are applied to each of the correction circuits 48.50.52.

The memory circuit 102 always remembers which correction touch switch was touched immediately before the malfunction prevention touch switch 30 is operated to enable correction, and then the switch 30 is operated again and correction becomes impossible. This is a circuit for storing information, and a detailed circuit thereof is shown in FIG. The circuit is F
F104-110, or gate 112-116. Inverters 118-124. It consists of trigger circuits 126-132. Each clock input φ of this FFI (14, 106, 108, 110) is connected to an inverter 118 to 124.
Modified control signals via trigger circuits 126-132
D2. D1. D is inputting. Then, the OR gate 112 into which the 6 outputs of the FF 70 and the correction digit selection signal D2 are input is input to the reset input R of the FF 104.
The reset input R of 06 receives the output of FF70 and the correction digit selection signal.

The orate 114 who entered the information is inputting the information. Sato 1
16 is input, and FF is input to the reset input R of FF'llO.
70 6 outputs are input. And each FF104~
The storage signals 01 to G4, which are the outputs of the respective terminals 110, are input to AND gates 76-82.

The operation of this circuit will be explained below with reference to the time charts of FIGS. 4 to 6 and the operation diagrams of FIGS. 7 to 12.

When the time is not being adjusted, as shown in FIG.
Since it is LJ, the ant gate group 72 is in a closed state, and even if the user touches the correction touch switches 14 to 20, the correction cannot be completed.

However, when the user touches the malfunction prevention touch switch 30 at time t; as shown in FIG.
The modified control signal B, which is the Q output of , also becomes rHJ. As a result, the position display elements 22 to 28 light up, and the correction circuit 48,
50.52 (lower L" in 52) where the carry signal is input from the digit 1-54 i is closed. Then, the second group 72 is opened, and the correction touch switches 14-20 are closed. is valid.The six outputs are "L"
As a result, FFs 104 to 11 in the memory circuit 102
Cancels the 0 reset.

At the subsequent time t2, as shown in FIG. 9, when the user touches the second correction touch switch 20, the operation signal becomes A5 bar HJ.

The signal A5 is input to the AND gate 76 in the gate circuit 74, but at this time, the memory signals 01 to G are all "H".
'', therefore, AND gate groups 76 to 82 are all open. Therefore, the correction digit selection signal D1 becomes "H", and accordingly, a positive single pulse is generated from the trigger circuit 92, and the second counter 38 is completely reset.

The result of second display 1-i on the second display section 12 becomes "00". Also, at the same time as the correction digit selection signal D1 or 1-H, the FF
The storage signal G1, which is the 6th output of 104, becomes "L-1".

When the minute digit correction touch switch 18 is operated by touching the minute digit correction touch switch 18 as shown in FIG. As a result, the correction digit selection signal D2 becomes "
H'', AND gate 56 in correction circuit 48 is opened, correction signal φ2 is supplied to minute digit counter 40, and the minute digit is corrected in fast forward. At the same time as this correction is completed, the correction digit selection signal D
Memory signal G2i r L which is the output of the 2-digit FF 106
J, and the 6 outputs of the FF 104 are set to rl(J.

After this, in the same way, 10 minute digit correction Tanochi Suinoche 61
If you touch the time digit correction touch switch 14, 1
When the 0 minute digit and hour digit are corrected, and the 1° minute digit is corrected, the 6th output of FF1118 is changed to “L” instead of FF106.
j, and when the hour digit is corrected, the output of FF1118Q becomes "L" instead of FF118.

In this way, the memory circuit 102 always remembers which correction touch switch was operated immediately before, and uses it so that the memory signal corresponding to that switch becomes "L".

However, at time t4 after the end of the minute digit, the user presses the minute digit correction touch switch 1, as shown in FIG.
6 and accidentally touches the previously operated minute digit correction touch switch 18, the rHJ signal is input to the AND gate 78 again. However, at this time, since the storage signal G2 of the storage circuit 102 is "L", the correction digit selection signal D2 becomes "L", and the minute digit is not corrected.

As shown in Figure 12, even if you try to touch the 10 minute digit correction touch switch 16 and accidentally touch the previously operated minute digit correction touch switch 18, the Among them, only the AND gate 8o opens and the correction digit selection signal D3 becomes rHJ, and 10
Either the minute digit is modified or the minute digit is not modified.

Then, when the 10-minute digit correction is completed, the correction digit selection signal D3 becomes r.
When it falls to "L", FF1 is output instead of d output of FF106.
The storage signal G3, which is the 6th output of 08, becomes r L J.

If you touch the touch switch 14 for correcting the hour digits after this, the hour digits will be corrected.If you touch the touch switch 16 for correcting the 10 minute digits by mistake, or if you touch the touch switches 14 and 16 at the same time. 1 even if there is only one
There is no effect on the o minute digit.

At this time as well, after the correction is completed, the signal G4 becomes II and J instead of the storage signal G3. After resetting the seconds, when you accidentally touched the second touch switch 2° while trying to correct the minute digits,
Alternatively, even if the second touch switch 2]j is touched together with the minute correction touch switch 18, only the minute digit is corrected, and in this case, the signal G2 is changed to "L" instead of the signal G1 after the correction is completed. -4.

As described above, according to the present embodiment, if after completing the operation of one correction touch switch, the user attempts to touch the correction touch switch next to it and accidentally touches the exact same touch switch, the Since no corrections are made, the corrected time will not be messed up. Similarly, even if the previously operated touch switch and the desired touch switch are operated at the same time, only the desired time digit is corrected without disturbing the previously corrected time. .

(Effects) As described above, according to the present invention, if an attempt is made to correct a certain time digit and the user accidentally touches the correction touch switch of the digit that has been corrected immediately before, that operation will be invalidated. This has the effect that if the time is correct due to the user's malfunction, the time will be lost if the time is correct.

[Brief explanation of drawings]

FIG. 1 is a display configuration diagram of a touch switch example watch according to an embodiment of the present invention. FIG. 2 is a circuit diagram of a watch with a clock according to an embodiment of the present invention. FIG. 3 is a detailed circuit diagram of the memory circuit of FIG. 2. 4 to 6 are time charts showing the operation of the circuit of FIG. 2. FIGS. 7 to 12 are explanatory diagrams showing the operation of cutting the top of the tanner switch according to the embodiment of the present invention. 2 Display unit, 14/16φ18-20/correction touch switch, 48/50/52 correction circuit, 74 gate circuit, 102 memory circuit. Patent applicant: Rhythm Tokiza Kogyo Co., Ltd. Figure 7 Figure 9

Claims (1)

[Claims] Correcting touch switches made of transparent electrodes are disposed on the display cover glass covering the time display section in accordance with each time display method, and by touch-operating each of the correcting touch switches, the corresponding time display (' In a touch switch clock having a correction circuit that performs correction by supplying a correction signal to a time counter that measures 6', the correction touch switch that was touched immediately before among each correction touch switch is a memory circuit for storing any of the touch switches, and a correction touch switch for invalidating the operation of the touch switch when there is a touch switch that was touched immediately before among the touch switches touched by the memory circuit. Touch switch malfunction prevention device.