JPS60203888A - Digital electronic timepiece - Google Patents

Abstract

PURPOSE:To contract a display area by arranging touch switches on positions superposed to respective time displaying parts and providing a switching means for shifting the correcting time of a clocking circuit corresponding to one superposed time display part to the other display part. CONSTITUTION:The titled timepiece is constituted of a liquid crystal part 12 sealing liquid crystal 12c between two glass plates 12a and 12b, display patterns (not shown in figure) arranged on a hour digit display part 14 and a minute digit display part 16 and a cover glass 18. An hour digit display correcting switch 20, a minute digit display correcting switch 22 and a mode change-over switch 24 consisting of touch switches respectively are arranged on the positions superposed to the hour and minute digit display parts 14, 16. If the minute digit display part 16 is to be corrected, the display part 16 is corrected by touching the superposed minute digit display correcting switch 22, so that the minute digit in correcting is shifted and displayed to/on the hour digit display part 14. Thus, the area of the display parts or the display patterns can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a digital electronic timepiece that uses touch switches to adjust the time.

(b) Conventional Example In recent years, electronic watches have been commercialized that use touch switches that perform switching operations by detecting changes in resistance and capacitance when touched by the human body.

This provides a sense of operation and design that cannot be obtained with pushbuttons, etc.
・It is aimed at the effect of bringing about Zain.

1 and 2 are front views showing a display of a conventional digital electronic watch using a touch switch. Typically, touch switches often use transparent electrodes, and their positions are often unclear when in time display mode.

This conventional display 1 also includes a mode changeover switch 6 among the touch switches provided on the surface of the cover glass 2.
Only the parts are colored so that you can see their positions.

When you touch this mode changeover switch 6, a touch switch 6 for correcting each display digit will appear below the hour digit display section 4 and minute digit display section 5.
．． 7 will appear on the LCD display.

By touching this correction touch switch 6.7,
When the display digit corresponding to each is corrected, it becomes K.

In such a conventional digital electronic watch, the touch switch is provided in an area other than the time display section in the display 1, so the display area becomes large and it is difficult to downsize the watch.

Also, in the time correction mode, the correction touch switch 6.
In order to display the liquid crystal display at the position No. 7, an electrode must be provided, which also has the disadvantage that the number of display patterns in the display cell increases.

(e) Purpose of the Invention An object of the present invention is to provide a digital electronic timepiece that uses a touch switch to adjust the time and has a smaller display area and fewer display patterns than conventional ones. do.

(d) Structure of the Invention The digital electronic timepiece of the present invention is a digital electronic timepiece having a timekeeping circuit, a display device provided with a plurality of touch switches, and a correction circuit that outputs a correction signal when the touch switch is turned on. , a touch switch is arranged at a position overlapping each time display section, and the touch switch that is turned on transfers and displays the corrected time of the time measurement circuit corresponding to the overlapping time display section to the other time display section. It is equipped with a switching circuit.

(e) Embodiment Hereinafter, the present invention will be explained in detail based on the drawings. 0. FIG. 3 is a front view of a digital electronic watch showing an embodiment of the present invention, and 4.
The figure is a cross-sectional view taken along the line A-A. 010 is a display, and a liquid crystal 12.0 is placed between two glass plates 12a and 12b. A display pattern (
(not shown), a cover glass 18 provided on the liquid crystal display section 12, and an hour digit display correction switch 20 consisting of a touch switch provided on the surface of this cover glass 18,
Minute digit display correction switch 22 and mode changeover switch 24
It is composed of.

The hour digit display correction switch 20 and the minute digit display correction switch 22 are arranged in positions that shield the hour digit display section 14 and the minute digit display section 16, respectively, and the mode changeover switch 2
4 is provided at a position other than the time display section.

Among these switches, only the mode changeover switch 24 has a mark formed on the surface of the cover glass 18 by printing or the like, so that its position is clear. When correcting the time of the digital electronic watch of this embodiment, first touch the mode changeover switch 24 to set the time correction mode, and then touch the touch switch superimposed on the display section to be corrected. .

At this time, the display being corrected is moved to a display section other than the display section on which the touch switch that is being turned on is overlaid.

That is, when correcting the minute digit display section 16, the minute digit display section 16 is corrected by touching the minute digit display correction switch 22 superimposed on the minute digit display section 16. The minute digits being corrected are moved to the hour digit display section 14 and displayed.

Next, the time adjustment operation will be explained in more detail using the block diagram shown in FIG. 5 and the time chart shown in FIG.

26 is a reference signal generator consisting of an expanded crystal oscillator, etc., and 28 is a reference signal generator that divides the high frequency signal from the reference signal generator 26 to 1 minute.
This is a frequency divider circuit that outputs a pulse signal of 10 times. 60 is a clock circuit, which includes a minute digit counter 32 and an hour digit counter 34.
It consists of 1 and 66 and 68 or gates.

The output signals of the frequency dividing circuit 28 and the minute digit counter 62 are applied to one input terminal of the OR game) 36.38, respectively.

Reference numeral 40 designates a switching circuit consisting of switching gates 42 and 44 which input the count values of the minute digit counter 32 and the hour digit counter 64 and switch the output. This switching function 42.44 outputs a minute digit count signal and an hour digit count signal when the signal ESF from the modification prohibition circuit 60, which will be described later, is at the L level, and when the signals E and F are at the H level, the hour digit count signal is output. It is set to output a digit count signal and a minute digit count signal.

46 is a decoder/driver, which consists of a minute digit decoder/driver 48 and an hour digit decoder/driver 50 for driving the minute digit display section 16 and hour digit display section 14, respectively, based on the signal from the switching circuit 40. It is something.

Reference numeral 52 denotes a correction circuit consisting of AND gates 54 and 56, which applies a correction signal to the minute digit counter 62 and the hour digit counter 64, respectively, via the OR game 36.3B.

58 is a touch detection circuit that detects that a human body has touched the touch switch. This touch detection circuit 58 is set so that when the mode changeover switch 24, the hour digit correction switch 20, and the minute digit correction switch 22 are operated, a pulse is generated in the output signal A, and the output signals C and D become H level. has been done.

Reference numeral 60 designates a modification-inhibited circuit; a 7-lip flop 62 inputs the signal A from the touch detection circuit 58; the output of this flip flop 62 is inputted to each input terminal, and a touch detection circuit is input to each other input terminal; AND gates 64 and 66 input the signal CSD from 58.

The output signal E of the AND gate 64 is applied to the AND gate 54 of the modification circuit 52, and the output signal F of the AND gate 66 is applied to the AND gate 56 of the modification circuit 52.

Next, the operation of the digital electronic timepiece of this embodiment having the above configuration will be explained.

First, when the mode changeover switch 24 is touched, the touch detection circuit 58 detects this and generates a pulse in its output signal A.

In synchronization with the rise of the pulse of this output signal A, the 7-rip 7-tube knob 62 of the modification inhibition circuit 60 outputs its output signal Bt.
- Set to H level.

In this way, when the signal B becomes H level, the AND gate 6
4.66 is in the open state and in time adjustment mode. When the human body touches the minute digit correction switch 22 in order to correct the minute digit display section 16 while in this time correction mode, the touch detection circuit 58 detects this and corrects the minute digit in the output signal. The switch 22 is set at H level only during the time t2 to t3 when the human body is in contact with the switch 22.

This signal is generated at the output signal F of the AND gate 66 which is in the open state and is applied to the correction circuit 52.

Therefore, the AND gate 56 of the correction circuit 52 is in an open state.

A pulse signal lc (for example, a pulse is generated once per second) is applied to the AND gates 54 and 56 of the correction circuit 52, respectively, and the AND gates 54 and 56 are in an open state. This pulse signal is generated in the output signal H of gate 56, and is applied to minute digit counter 62 via OR gate 66 to fast-forward the count.

At the same time, when the signal F from the correction circuit 60 becomes H level, the switching gate 44 in the switching circuit 40 generates a minute digit count signal from the minute digit counter 62 as the output signal J in response to this signal FK. .

As a result, the count value of the minute digit counter 52 being fast-forwarded is applied to the hour digit decoder/driver 50 via the switching gate 44 and displayed on the hour digit display section 14.

On the other hand, when the hour digit correction switch 20 is touched in order to correct the hour digit display section 14, the output signal C of the touch detection circuit 58 becomes H level for the operating time t4 to t11. Therefore, the output signal E of the AND gate 64 is kept at H level, and only the AND gate 54 is opened, and the pulse signal lc is generated in the output signal G thereof.

This signal G is sent to the hour digit counter 34 via an OR gate 38.
is applied to and fast-forwards this.

At the same time, when the output signal E of the modification prohibition circuit 60 becomes H level, the switching gate 42 in the switching circuit 40 switches its output signal in response to this, and the hour digit count signal from the hour digit counter 64 is changed. Its output signal I is generated.

As a result, the count value of the hour digit counter 34 being fast-forwarded is applied to the minute digit decoder/driver 4B via the switching gate 42 and displayed on the minute digit display section 16.

After making the correction in this way, turn the mode selector switch 2 again.
4, a pulse is generated again in the output signal A of the touch detection circuit 58, and in synchronization with the rise of this pulse, the output signal of the flip-flop 62 becomes L level, and the AND gate 64 .66 is held closed and returns to time display mode.

(f) Effects of the Invention According to the present invention, since the touch switch is superimposed on the time display section, the area of the display section can be made smaller than that of the conventional one.

Further, since the position of this touch switch is indicated by the time display section, there is no need to provide a display pattern in addition to the time display section.

Furthermore, when modifying a digit displayed on one display, the digit being modified is moved to the other display, so you can operate it by touching the touch switch overlaid on the display. Even when I do this, the display I am editing is sometimes hidden by my finger.

[Brief explanation of the drawing]

Figures 1 and 2 are surface views of a conventional digital electronic watch.
FIG. 5 is a block diagram of an embodiment of the present invention, and FIG. 6 is a time chart of the block diagram shown in FIG. 10...Display device, 12...Liquid crystal display section, 14...
Hour digit display section, 16... Minute digit display section, 18... Cover glass, 20... Hour digit correction switch, 22... Minute digit correction switch, 24... Mode changeover switch, 60...・Clock circuit,
40...Switching circuit, 46...Decoder driver,
52... Correction circuit, 58... Touch detection circuit, 60
... Modification prohibited circuit. Patent applicant Rhythm Watch Industry Co., Ltd. Figure 3 ↑ A

Claims (1)

[Claims] a timekeeping circuit that measures the time corresponding to the time display digit; a display device that displays the time of the timekeeping circuit and has a plurality of touch switches on a cover glass corresponding to the time display digit; A digital electronic watch comprising a correction circuit that supplies a correction signal to a timekeeping circuit corresponding to a time display digit by turning on a corresponding touch switch, wherein the touch switch is arranged at a position overlapping each time display digit. and a switching circuit for transferring the corrected time of the time measurement circuit corresponding to the time display digit on which a touch switch is overlaid when turned on to another time display digit.