JPS5816153B2 - Time display method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a timekeeping display method for an electronic timekeeping device that performs digital display using electronic timekeeping.

In recent years, with the development of electronic desktop calculators, various electronically controlled display devices with multi-digit display functions have been developed using liquid crystals, Nixie tubes, fluorescent display tubes, light-emitting diodes, etc. to digitally display numerical information related to calculations. ing.

FIG. 1 shows an example of a multi-digit display tube using a fluorescent display method, in which each digit D1. D2...D8 are provided with a numerical value display segment group in which seven segments 10, 12...1□ are arranged in a Japanese character shape, as well as a code display element 3 for displaying a decimal point sign and a scale sign display. A code display element 2 is provided.

For example, when displaying the calculated numerical value (12, 34, 5, 6), the lowest digit, that is, D
Segment for 1-digit numerical display 11゜1□, 14, 15,
16, 12, D 2-digit numerical display segment 11, 1□
, 14, 16, 1□ and decimal point sign display element 3, D3
Digit numerical display segment 1□, 13t 14t 16
, D 4-digit numerical display segments 11, 13, 14, 1
a, 1□, D 5-digit numerical display segment Lt 13,
14, 15, 17, the scale code display element 2, D6-digit numerical display segments 13, 16, etc., are respectively display-controlled.

In addition to multi-digit display tubes with the above-mentioned segment configuration, there are also tubes with a numeric display segment group in which eight segments are arranged in a square shape and each of the code display elements described above, or a Nixie tube. There are various multi-digit display devices, such as those having a structure in which each numeric value display element from 0 to 9 and the above-mentioned code display element are provided for each digit.

In recent years, such multi-digit display devices are often used not only in electronic desktop calculators but also in so-called electronic timekeeping devices such as table clocks and wall clocks that are controlled by electronic timekeeping.

In conventional electronic timekeeping devices that use this type of multi-digit display device for timekeeping, only the time is simply displayed digitally using a group of numerical display elements, for example, the upper two digits. The hour was displayed by the numerical display element group, and the minute was displayed by the numerical display element group for the lower two digits.

However, in such conventional display systems, only numerical values such as hours and minutes are displayed using a group of multi-digit numerical display elements, and timekeeping other than time is not possible. Because it did not have a time display such as week, month, day, AM/PM, etc., it did not have a sufficient time display function for use, which caused various inconveniences during use. was.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a timekeeping display method that can easily and clearly display time and other timekeeping information by effectively and efficiently using the display function of a multi-digit display device. With the goal.

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

FIG. 2 is for explaining an example of a display format when a multi-digit fluorescent display tube similar to that shown in FIG. D8. D 7-digit numerical display segment group 10,1°・
...17 is used to display [month] numbers from 1 to 12, and D6 j D5-digit number display segment group 10,1
°...1□ is used to display [day] numbers from 1 to 31, D4. D3-digit numerical display segment group 1□, 1
□...1□ is used to display [hour] numbers from 1 to 12, and D2゜D segment group 18, 1 for displaying 1-digit numbers.
□...17 is used to display [minute] numbers from 0 to 59, and D7. D5. The D3-digit scale code display element 2□725, 23 is used to display the [month], [date], [hour], and [minute] separators, and is also used to display the seconds, and the D8 to D2-digit decimal point sign is displayed. Element 38
, 37...3□ are used to display the days of the week from Monday (MON) to Sunday (SUN), and the D1-digit decimal point sign display element 31 is used to display morning (AM)/afternoon (PM). be.

By using such a display format, the display function of the multi-digit display tube can be effectively and efficiently used to clearly display not only the time but also various timekeeping functions, including calendar functions other than time. , it is possible to perform a time measurement display that is very advantageous in use.

Next, a circuit block for displaying such a time measurement function will be explained with reference to FIG.

In Figure 3, 11 is 20H2 (hertz), e.g. Eva 2
This is an oscillator that generates a reference pulse for timing of 15 (=32768) Hz, and 12 is a reference pulse signal obtained from this oscillator 11 that is divided into //60H2, that is, one period 1.
It is a frequency divider that obtains pulses in child units and, in the frequency division process, obtains pulses in units of 1 [(z, that is, 1 cycle and 1 pulse unit.)

The pulses obtained from this frequency divider 12 in units of one cycle per cycle are sent to the decimal counter 13 and are incremented by one minute. The output pulse (hereinafter referred to as a full count pulse) is sent to the hexadecimal counter 4 and is incremented in units of 10 minutes. Furthermore, the full count pulse of the hexadecimal counter 14 is sent to the hexadecimal counter 1.
5, and the full count pulse of the counter 15 is 2
The full count pulse of the counter 16 is sent to the hexadecimal counter 17 and the decimal counter 18.
The full count pulse of the counter 18 is sent to the ternary counter 19, and the full count pulse of the counter 19 is sent to the hexadecimal counter 20, so that the hexadecimal counter 15 counts in units of 60 minutes, that is, one hour. (hereinafter abbreviated as FIH) units, the binary counter 16 increments (inverts) units of 12H, and the hexadecimal counter 17 and decimal counter 18 increment 24I (i.e., IB). The ternary counter 19 advances in IOD units, and the ternary counter 19 advances in IOD units.
The advance counter 20 increments in units of 28D to 31D under the control of a date correction circuit (not shown).

Each bit output terminal of each of these counters 13, 14...20 is connected to a decoder/output terminal provided corresponding to the counter.
It is connected via a driver or a driver to the multi-digit display tube shown in FIG. 2 above.

In other words, each bit output of the decimal counter 13, which steps in steps of one car minute, is decoded by the decoder/driver 21, driven, and supplied to the D2-digit numerical display segment terminal (not shown) of the multi-digit display tube. , each bit output of the hexadecimal counter 14 that increments in units of IO minutes is sent to the decoder/
Each bit output of the hexadecimal counter 15, which is decoded and driven by the driver 22 and supplied to the D1-digit numerical display segment terminal and increments in units of lH, is decoded by the decoder/driver 23 and driven to the D3 .
D is supplied to the segment terminal for 4-digit numerical display, and 12H
The bit output of the binary counter 16 that increments in units is supplied to the terminal of the D1-digit decimal point sign display element 31 via the driver 28, and each bit output of the hexadecimal counter 17 that increments in ID units is supplied to the decoder. Each bit output of the decimal counter 18 is decoded and driven by the /driver 24 and supplied to the terminals of the decimal point sign display elements 38 to 3□ of D8 to D2 digits, and is incremented in ID units. Each bit output of the ternary counter 19, which is driven and supplied to the D5-digit numerical display segment terminal and increments in units of 10D, is decoded by the decoder/driver 26 and driven to the D6-digit numerical display segment terminal.
Supplied to the segment terminal for 8-value display of the digit, 28D-1
A hexadecimal counter 20 (7: each bit output is decoded by a decoder/driver 2γ,
The signal is driven and supplied to D87, a segment terminal for displaying a 7-digit numerical value.

Further, the pulses obtained from the frequency divider 12 in units of one cycle and one stroke are sent to the D7. I)5. D is supplied to the terminal of the 3-digit scale code display element 2□525+23 to display the second every second.

By having such a configuration, I)8. [Month] is displayed by D7 digits, and [Month] is displayed by D6 t D 5 digits.
] is displayed, and D4. [Hour] is displayed by D3 digits, and D2. [Minute] is displayed by D1 digit, and D7
, D! t, D3-digit scale code display elements 27, 25
, 23, the seconds are displayed, and the month, day, hour, and minute divisions are also displayed.

Also, D3 to D2 digit decimal point sign display elements 38 to 3□
The days of the week from Monday (MON) to Sunday (SUN) are displayed, and morning (AM) and afternoon (PM) are displayed depending on the brightness of the D1-digit decimal point sign display element 3□.

In this way, by effectively utilizing the display function of the multi-digit display tube to display not only time but also other timekeeping functions, the range of uses has been significantly expanded and clear display has been achieved. Therefore, a very advantageous time measurement display can be performed in use.

In the above-mentioned embodiment, a fluorescent display tube with an 8-digit structure and a scale sign and a decimal point sign display function is taken as an example, and [month], [month], [month], Displays [day], [hour], [minute], D7 t
D5 t A D3-digit scale sign display element displays second intervals and month, day, hour, and minute divisions, D8 to D2-digit decimal point display elements display the days of the week, and a D1-digit decimal point sign. AM/PM depending on display element
Although the display is not limited to this,
The display device can be easily used in other display devices other than fluorescent display tubes, such as liquid crystals, Nixie tubes, light emitting diodes, etc., and the number of digits and display function configuration can be other than 8 digits. , and may not have the function of displaying a decimal point sign or scale code.For example, when using a display device with a 6-digit configuration and no scale code, the numerical display elements for each digit can display [date], [hour], [Minutes] may be displayed, and the decimal point sign display element for each digit may be used to display units of 10 seconds, or the day of the week may be displayed (for example, the sign display element for each digit may be made bright only on Sundays). Various applications are possible without departing from the gist of the invention.

As described in detail above, according to the present invention, the timekeeping display section includes a display device in which a group of numerical display elements is provided for each of a plurality of digits, and each digit is provided with a code display element that indicates at least a decimal point or scale. When used, the display function of a multi-digit display device can be effectively and efficiently displayed by using not only elements for displaying numerical values of arbitrary digits but also elements for displaying codes to display functions related to timekeeping other than time. By using the present invention, it is possible to easily and clearly display time and other time measurements, thereby providing a time measurement display method that is extremely advantageous and convenient in use.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of displaying calculated numerical values by a multi-digit display tube, FIG. 2 is a diagram showing an embodiment of the present invention, and FIG.
The figure is a block diagram showing the circuit configuration of the above embodiment. Dl, D2...D8...Digit, 18, 12...
・1□・・・・・・Segment for numerical display, 21, 2□
・・・2□・・・・・・Scale code display element, 3□, 3
2...3□... Decimal point sign display element, 11.
...Oscillator, 12...Divider, 13゜1
4...20...Counter, 21,22...
2γ...Decoder/driver, 28, 29...
····driver.

Claims (1)

[Claims] 1. In a display device in which a group of numerical display elements is provided for each of a plurality of digits, and each digit is equipped with a code display element that indicates at least a decimal point or scale, at least timekeeping information of hours and minutes is displayed for the numerical display of the plurality of digits. means for displaying in a group of elements, and the above-mentioned time and predetermined time measurement information other than the divisional information are associated with the code display elements of each digit according to the predetermined time measurement contents,
A timekeeping display method comprising: means for displaying the code display element of a corresponding digit according to the content of the timekeeping.