JPS5832355B2 - electronic clock - Google Patents

Description

[Detailed description of the invention] The present invention relates to a correction device for an electronic timepiece.

In a digitally displayed electronic watch, such as a liquid crystal display type electronic watch, the method of correcting the time or calendar is to first select the digit to be corrected, display the correction digit in blinking, and then change the correction digit each time the button is pressed. A system is adopted in which the number is automatically counted by continuing to press the button.

However, this method has the disadvantage that the displayed number cannot be instantly determined because the correction digits that are automatically counted are blinking.

This resulted in inconveniences such as having to set the correct values and redoing them many times.

The present invention aims to eliminate the above-mentioned drawbacks.

In other words, the present invention provides an extremely easy-to-use method of correcting electronic equipment by flashing the button when it is counted each time it is pressed, and stopping the flashing while the button is kept pressed and automatically counted. .

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a digital wristwatch.

1 is the outer case, and 2 is the lock button to put the watch in the corrected state.

3 is a select button for selecting the digit to be corrected, and 4 is a set button for counting the digit to be corrected.

5 is the second digit, 6 is the minute digit, and 7 is the hour digit.

So, when you press the lock button 2 to set the correction state, and press the select button 3 to adjust the minutes, and the minute digits are blinking, 40
One minute is added each time the set button is pressed, and by continuing to press the set button, a fast forward pulse is automatically supplied after 2 to 3 seconds for automatic counting, and at the same time, the blinking is stopped.

A block diagram of the circuit used to accomplish this is shown in FIG.

FIG. 3 shows a detailed circuit diagram of the relevant parts.

FIG. 4 shows a timing chart.

First, FIG. 2 is a block diagram of the electronic timepiece used in the example, in which 8 is an oscillation section, 9 is a frequency dividing section, and 10 is a part of a counter for seconds, minutes, and hours.

11 is an input and circuit control section, and the input is 2 a t
Three switches of 3a and 4a were used.

First, reference numeral 2a is an input signal for switching the watch to the corrected state, which is input by the lock button 2 in FIG. 1, and is called a lock signal.

Next, 3a is an input signal for selecting the correction digit;
It is input from the select button 3 in the figure and is called a select signal.

4a is an input signal for counting the selected correction digit, which is input from the set button in FIG.
We will call this the set signal.

Next, 12 is a circuit for decoding the signal from 10, and is a decoding section.

14 is a drive for driving and displaying the output of 12,
This is the display section.

Reference numeral 13 denotes a blinking control section for controlling the blinking signal based on the signal from the input 110 and the circuit control section.

This will be explained in detail with reference to FIG.

Therefore, in the normal clock state, the signal from the 8 oscillator is divided by 9 and counted by 10, which is 12.14.
It is output to the display through.

Therefore, by inputting the lock signal 2a, the seconds digit will blink on the display, and by the select signal 3a, the blinking digit can be changed from seconds to minutes, hours, and seconds.

It is also assumed that correction can be made by counting the blinking digits one by one using the set signal 4a, and correction can be made by automatic counting by continuing to input 4a for a certain period of time.

At the same time, it will stop blinking.

In this way, even if the numerical value on the display moves rapidly, it can be checked visually by stopping the flashing, and corrections can be made quickly and accurately, which is very convenient.

The circuit for stopping blinking during automatic counting during this correction is a blinking control section 13, and the details of the circuit and its timing chart are shown in FIGS. 3 and 4, and will be described below.

In Figure 3, 15, 16, 17 are D-type flip-flops, 18, 19, 20, 21 are AND gates operated by two people, 22, 23, 24 are inverters, 25, 26
．． 27 is a four-man powered or gate.

Here, the D-type flips 70 15 to 17 are shift registers, and a high potential is always applied to b.

A timer is configured using the output of 18 as a clock.

Therefore, in this embodiment, IHz is used as the clock signal input to C of 18 for determining the time interval of the timer.

In addition, d is the one in which the set signal is passed through the chattering prevention circuit in the circuit 11.

Accordingly, from FIG. 4, a signal h is obtained as an output from C and d, and this is returned to the input and control circuit 11 for use in automatic counting, and is also used for blinking control.

Also, e + f * g is generated from the 110 input and control circuit depending on which digit is selected from the select signal of 3a, and e is the second digit select signal,
f is a minute digit select signal, and g is an hour digit select signal.

Further, m is a blinking signal, and in this example, 2 Hz was used.

i, j are signals corresponding to e, f, g, respectively; however, since each is controlled by the h signal, i is a second digit blinking signal, j is a minute digit blinking signal, and k is an hour digit blinking signal. It will be a blinking signal.

Therefore, since the operation of this output tsj+k is the same except for where the select signal indicates, the minute digit flashing signal j will be explained.

Therefore, as shown in Fig. 4, the f signal is at a high potential and the n signal is not yet output for a while after the d signal is output, so the output j
The m signal for blinking is still output.

However, after 2 to 3 seconds, when the n signal is output, j is determined by this h, and the potential is always high, and no blinking signal is output.

However, at the same time that the d signal is cut off, the n signal is also cut off, and the flashing starts again.

Then, the lock signal to the 110 input and control circuit section is passed through the chattering prevention circuit, and the n signal prevents the flashing signal from passing through again.

The above is a brief explanation of the circuit used in this example.
There are many other ways to configure the circuit.

In the present invention, by controlling the blinking, it is possible to accurately determine the numerical value being corrected.

Therefore, 1. There are no mistakes and corrections can be made easily.

[Brief explanation of drawings]

Figure 1 is a front view of a digital wristwatch. FIG. 2 is a circuit block diagram of the present invention. Figure 3 is a detailed circuit diagram of related parts. FIG. 4 is a timing chart of the signals in FIG. 2. 1...Exterior case, 2...Lock button, 3...
Select button, 4... Set button, 5... Second digit, 6... Minute digit, I... Hour digit, 8... Oscillator circuit block, 9... Branch circuit block, 10...・Seconds, minutes,
hour counter block, 11...input control block,
12...Seconds, minutes, hour decoder block, 13...Blinking control circuit block, 14...Seconds, minutes, hour driver and display block, 2a...Lock signal, 3a...
Select signal, 4a...Set signal, 15, 16, 1
7... One type flip-flop with reset, 18
．． 19゜20.21...2 person Kaand gate, 22
, 23. 24... Inverter Kate, 25, 26, 27...
4-input chaor gate, b...always high potential, C...input frequency for timer, d...correction digit count signal, e...
...Seconds digit select signal, f...Minute digit select signal, g
...Hour digit selection signal, h...Output signal for stopping blinking, i...Second blinking control signal, j...Equinox acid? I51 clear signal, k...time blinking control signal, l...correction status signal, m...input signal for blinking frequency.

Claims (1)

[Claims] 1. An oscillation circuit, a frequency dividing circuit, a counter circuit, a digital display device that displays a multi-digit time display, a first switch that selects a correction digit from the multi-digit time display digits, and the first switch.
The second switch changes the value of the correction digit selected by the switch.
An electronic timepiece comprising: a means for blinking the correction digit selected by the first switch; a gate for prohibiting the blinking; and a gate for indicating that the second switch has been closed for a predetermined period of time. A timer circuit is provided for detection, and the change in the value of the correction digit by the second switch is switched between 1-button 1-count correction and automatic count correction by the output of the timer circuit, and the blinking of the correction digit is changed by the output of the timer circuit. An electronic timepiece characterized in that it is inhibited by the output of the timer circuit inputted to a gate.