JPS591994B2 - Adjustment device for electronic clock with keyboard - Google Patents

Description

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

Traditionally, electronic clock correction devices have a configuration in which the time digit to be corrected is selected and the time digit is incremented by one unit each time a switch is pressed, or the clock is automatically run by an internal clock signal while the switch is pressed. Although configurations have been devised in which the number is increased by one unit for each signal, correction is time-consuming and complicated in either case.

In addition, in electronic watch correction devices equipped with a numeric keyboard from 0 to 9, O to 9 are always placed in the lower digit of each correction time unit.
We devised a configuration in which the numerical value entered on the numeric keypad for 9 is input, and the lower digit is rounded up to the king digit at any time, and a configuration in which the 1's digit and 10's digit of each time unit are individually corrected. number, but does not exist in the hourly unit, for example 75
It has the disadvantage that it is difficult to process and cannot be easily understood by general users.

Therefore, according to the time adjustment device according to the present invention, it is possible to provide a time adjustment device that can be adjusted in a short time and is easy to understand for general users.

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention, in which a digit selection counter 5 counts and selects the time unit such as hour or minute to be corrected by a signal from a SW, and a decoder 6 and a digit signal switching circuit 7 select necessary time units. A suitable digit signal is selected.

1 is a keyboard that includes numeric keys from O to 9, and when you press the number you want to modify, the encoder 2 outputs a BCD code serial signal, and the shift register circuit 4, which has +1 addition and left shift functions, inputs the lower order of the time unit you want to modify. Write the number you want to correct in the digits.

Also, as soon as you press the numeric keypad, the timer circuit 3 starts counting, and when a certain amount is counted, a left shift command is output and the value input in the lower digit of the time unit you want to correct is shifted to the upper digit of the same time unit. be done.

8 is a reference oscillation circuit, 9 is a control signal generation circuit, and 10 is a reference clock generation circuit.

FIG. 2 is an example of correction using the correction device of the present invention,
A is raining at 12:45.

If you want to correct the minute to 37 minutes, press 3 on the keyboard and the 1s digit of the minute will be filled with 3, and the 10s digit of the minute will be O.

If you continue to press the 3 key for a certain period of time, 3 will carry over to the 10th digit of the minute and become 30 minutes.

Next, press the 7 key on the keyboard and 7 will be entered in the minutes digit, making it 37 minutes.

Next, when you press keyboard 6, 6 is entered in the minutes digit, making it 6 minutes.

Even if the 6 key is continued to be pressed, there is no time when the 10th digit of the minute becomes 6, so the carry-over to the 10th digit of the minute will not occur.

As described above, according to the present invention, after selecting a correction time unit, a key is pressed to input a correction value, and by continuing to press the key for a predetermined time, the manually input correction value is shifted to the throne digit within the selected time unit. By doing so, it is possible to provide a time adjustment device that can adjust the time in a short time and does not require inputting numbers that do not exist in the time.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the invention. 1... Keyboard, 2... Encoder, 3... Timer circuit, 4... Shift register, 5... Digit selection counter, 6・・・
... Decoder, 7 ... Digit signal switching circuit, 8 ... Reference oscillation circuit, 9 ... Control signal generation circuit, 10 ... Reference clock generation circuit. Figures 2a-d show modifications according to the invention.

Claims (1)

[Claims] 1. A correction device for an electronic watch with a keyboard having a plurality of keys corresponding to numerical values 0 to 9, which includes a digit selection circuit for selecting a time correction digit, a shift register having a left shift function and into which correction values are written using the keys; A timer circuit is connected to the key and counts the time period during which the key is pressed, the key inputs a correction value into the lower digit of the time unit selected by the digit selection circuit, and the timer circuit A keyboard, characterized in that when the pressing time of the key exceeds a predetermined time, a shift signal is output to the shift register to shift the correction value input in the lower digit to the upper digit of the selected time unit. Electronic clock correction device.