JPS5929838B2 - IC circuit for electronic clock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an IC circuit for an electronic timepiece configured to display the day of the week in segments.

With fully electronic watches that display the day of the week in segments, the day of the week is expressed differently in each language, so if you are considering exporting the clock, you will need to be able to display the day of the week in the national language of each country you are exporting to. It was necessary to prepare a photoelectric display cell and a clock IC circuit. In the case of photoelectric display cells, for example liquid crystal display cells, it is not very troublesome to create display patterns for each country.

This is because if only the electrode pattern of the cell is changed, the rest of the manufacturing process is the same. Furthermore, segment patterns that can display the days of the week in two or more Japanese languages have already been considered. On the other hand, for watch ICs, if you change the IC pattern, you can create a completely different IC.

This is a very complicated problem when considering creating an IC for each country. Therefore, in the present invention, an all-electronic timepiece having a circuit configuration to display the day of the week in segments is provided with a circuit configuration capable of displaying the day of the week in multiple languages, and the multiple languages are connected from the same output terminal of the IC circuit. Provides an IC circuit for an all-electronic watch, characterized in that it is configured to output a segment signal for displaying the day of the week in the language of
This solution solves the above-mentioned problem by making it possible to display the days of the week in multiple languages.

This will be explained below with reference to the drawings.

In the following explanation, we will take as an example two languages, German and English, and show an IC circuit that can display the days of the week in both languages. Figure 1 shows the days of the week in English and German.
Indicated by the first two letters.

Examples of day of the week display using these Japanese language segments are shown in Figures 2 and 3, respectively. Figures 2a and 3a are
The segment pattern diagrams, FIG. 2b and FIG. 3b, are examples of day-of-the-week displays based on the segment pattern diagrams.

Figure 4 is a segment pattern diagram for displaying both of these two languages, and the first character is marked with a symbol (A, b, c...k) for each segment. .

As can be seen from a comparison of Figures 2, 3, and 4, the segment common to each Japanese language in this first letter is:
Among A, b, c, d, e, f, g, and h, the segments used only in English are I and k, and the segment used only in German is j.

The second character consists only of segments common to both.

Here, an example of a 1C circuit for a watch for realizing both the English and German day-of-the-week displays will be described, taking as an example the display of the first character of the week-day in English and German.

The first character segment in Figure 4 (A, b, c...
If the display state of each day of the week in .

FIG. 6 is a block circuit diagram of an IC circuit for a liquid crystal display timepiece that makes it possible to display the day of the week in both Japanese languages, with reference to FIG. 5. 1 is a reference signal oscillation circuit, 2 is a frequency dividing circuit, 3 is a time counter circuit, 4 is a day of the week counter circuit, 5 is a day of the week decoder circuit, and 6 is a day of the week display drive circuit.

Reference numeral 60 is an IC including these, and components other than input/output terminals for days of the week are omitted.

Here, day of the week signals 41, 42, . ', b', Ct...k' are created.

The way to read this matrix is equivalent to that shown in FIG. 7 in terms of the a' segment signal. 601, 602 to 611 are the segment signals a', b', c'...
A segment signal for display driving corresponding to k', IC
This is the output terminal when configured.

612 is the common electrode signal at that time.

613 is each segment signal a', b', c', d',
This input terminal is used to switch the output signals of e', f', g', h', j', and k' between the day of the week display in English and the day of the week in German.If this input terminal is set to H level, If you change to English or L level, it will be displayed in German.

Therefore, if this input terminal 613 is configured as an input terminal of IC6O, it is possible to easily switch between English and German by connecting this input terminal to H or L level. Note that in order to reduce the number of output terminals of the IC circuit as much as possible, the output terminal 609 used only for English and the output terminal 610 used only for German can be made common. At that time, when the signal at the input terminal 613 is Y, i'Y+i'Y is the Exelusiv signal of the drive circuit 6.
If the signal to be input to one input terminal of egate and output to the common output terminal is X, then when the input terminal 613 is at H level,
', and when it is at L level, it is sufficient to configure it so that X=Ij'+φ5.

Of course, when the configuration is such that a signal that should normally be output from a single output terminal is output from a common output terminal like this, it is possible to use this C circuit to create a clock that can switch between English and German display of the day of the week. Can not.

What is possible is either a watch that combines this IC circuit and an English-only display device, or a watch that combines an IC circuit and a German-only display device.

There are three ways of using C6O shown in FIG. 6, depending on the relationship with the liquid crystal display cell, and these are shown in FIG.

As shown in FIG. 8a, when connecting this IC to a photoelectric display cell 81 having a common electrode pattern in England and Germany, 601, 602, etc., which of course become the output terminals of the IC, are connected.
The segment drive signal output ends of 611 are all connected to each segment A, b, c, d, e...k.

A clock constructed in this way can independently switch between English and German day of the week display.

FIG. 8b1 and FIG. 8c show photoelectric display cells 82, 83 and IC6 with day-of-the-week display patterns for English and German, respectively.
In this case, the segment signal output terminal 610 of the IC6O in FIG. 8b and the segment signal output terminals 609 and 611 of the IC6O in FIG. 8c are not connected as unnecessary terminals.

Further, the input terminal 613 of the IC6O at that time is fixed at the H level in FIG. 8b and at the L level in FIG. 8c.

That is, with one IC, it is possible to create a liquid crystal display clock that displays the day of the week exclusively in English and a liquid crystal display clock that displays the day of the week exclusively in German. In the explanation of Figures 6 and 8, we have used an example of a liquid crystal display clock, and we have also used an example of switching between English and German and displaying the day of the week with a single character. Of course, the invention is not limited to these embodiments, and can be applied to other photoelectric display clocks such as light-emitting diode displays, electrochromic displays, etc., as well as in English, German, French and Italian languages, other languages, and even within the same national language. This can be applied to switching days of the week with different expressions due to differences in dialects, and when displaying with two or three characters.

As described above, in the present invention, since the same IC pattern can display the days of the week in multiple languages, one IC can display the days of the week in multiple languages, which is highly effective.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram showing an example of how to display the day of the week in English and German using two characters, Figure 2 A, b, Figure 3 A, b
Figure 4 is a segment pattern diagram that can display the day of the week in English and German, and an explanatory diagram of its display example. Figure 4 is a diagram of a display segment pattern that can display the day of the week in both English and German. The first character segments A, b, c...k of the segment pattern diagram shown in FIG.
Figure 7, an IC circuit diagram that enables day of the week display in both English and German languages, is the main circuit diagram of Figure 6, Figures 8A, b,
FIG. 6c is an explanatory diagram showing a combination of connections with a photoelectric display cell using the IC shown in FIG. 6; 4...Day of the week counting circuit, 5...Day of the week decoder circuit, 6...Display drive circuit, 41-47.
...Day of the week signal.

Claims (1)

[Claims] 1 In an electronic clock IC circuit that enables day of the week display using A and B words, the segment pattern for day of the week display is
The segment signal corresponding to the segment common to both the A word and the B word is configured to be switched and output from the same output terminal of the IC circuit, and the segment signal corresponding to the segment used only by the A word , a segment signal corresponding to a segment used only for the B word is configured to be switched and output from an output terminal of the IC circuit provided separately from the output terminal, and the IC circuit and the segment signal for the A word A display cell, the IC circuit and the display cell for the B word,
An IC circuit for an electronic timepiece that can be combined to create a clock that can display the day of the week using the A word and a clock that can display the day of the week using the B word.