JPH083705B2 - Display processor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Summary of the Invention In a character display device in which the number of display sections required for displaying one character differs depending on the character, a display for clearly indicating the one-character display section is provided. As a result, the range of one character can be easily discriminated and the troublesomeness of character reading can be eliminated.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display processing device for displaying a character designated by character code data given by a display command on a multi-digit type display device in various data processing devices.

Generally, one character is displayed on each digit of a multi-digit type display device, for example, a multi-digit type fluorescent display tube. 1
Since the characters are displayed in a certain range, they are not particularly difficult to read, and can be sufficiently read by paying the attention required in normal life.

However, when one character is displayed over one or more digits, for example, the applicant's patent application dated April 15, 1987 (1) “Hangul character generation method” (Japanese Patent Application No. 62-90).
No. 683), one Hangul character may be displayed in one display area depending on the character, or may be displayed in two or three digits in the display area. There are various things, and reading characters is troublesome. In particular, the Hangul characters created by the above generation method are assembled characters that express consonant patterns, vowel patterns and patchum patterns by consonant + vowel or consonant + vowel + patchum combinations. However, the range of one character must be deduced and read, which requires more attention than is usually required.

SUMMARY OF THE INVENTION The present invention is characterized by providing a display processing device capable of performing a relatively easy-to-read display even if the number of display sections for one character is different.

According to the present invention, when a display command including a series of character code data representing a plurality of characters to be displayed is given, a plurality of characters designated by this display command are arranged in a multi-digit display section. In the display processing device, which is displayed on the existing display device and the number of display partitions occupied in the display of one character specified by the one-character code in the display command differs depending on the character, a display that clearly indicates the one-character display partition is provided. It is characterized by

There are various modes of display that clearly indicate the display section of one character. As a typical example thereof, there is a block frame provided at a predetermined position and surrounding a plurality of display sections. In this case, control is performed so that one character is displayed for each one or a plurality of block frames. As another example of the display clearly indicating the one-character display section, there is a display indicating the range of the one-character display section. For example, the light emitting element may be turned on to form an underline that emits light over the entire display area for one character, or the display area for one character may be surrounded by the light emitting element that is turned on.

In any case, according to the present invention, the display area of one character is clearly displayed even if the size of one character is different. It will be relatively easy.

Description of Embodiments An embodiment in which the present invention is applied to display of Hangul characters in an electronic cash register (ECR) will be described in detail.

(1) Structure of ECR Figure 1 shows the appearance of the ECR. ECR1 is a cash box with a cash drawer installed at the bottom of the ECR1 and has a cash drawer that can be opened and closed. The department code, product name, price, total amount, and customer's name entered for registration, or calculated from memory. Display for operator 3 for displaying payment amount, change, etc., display for customer 4 arranged to face the opposite direction from this display 3 and for displaying similar transaction data, as described above. Transaction data is printer 5
Issue port for receipts printed by (See Fig. 2) 5
a, keyboard 6 for entering department code, product code, amount, quantity, and other transaction information, and credit card
It is provided with a card insertion port 7a for inserting the card for individual verification or validity inspection of the card.

FIG. 2 shows the electrical configuration of the above ECR1. ECR1
The overall operation of the registration process in is controlled by the main CPU 11, and the main CPU 11 is provided with a ROM 12 storing the execution program thereof and a RAM 13 for storing data necessary for the registration process and other data. Further, the main CPU 11 is connected to the keyboard 6 and a writing card reader / writer 7 for reading the data recorded in the credit card and if necessary.

The operator display 3, the customer display 4 and the printer 5 are controlled by the sub CPUs 31, 41 and 51, respectively. Display commands and print commands, which will be described later, are given from the main CPU 11 to these sub CPUs 31, 41, 51, respectively. sub
ROMs 32, 42, 5 that function as character generators that generate display or print dot patterns for CPUs 31, 41, 51
2 and RAMs 33, 43, 53 for storing commands given from the main CPU 11 and other data. Sub CPU
31, 41 analyzes the display command including the character code given by the main CPU 11 as described later, and
The dot pattern in 2,42 is used to control the display of Hangul characters and mixed alphabet and number information. The sub CPU 51 also analyzes the print command given in the same manner and performs print processing.

FIG. 3 shows an example of the display panel 34 provided in each of the displays 3 and 4. On the display panel 34, a plurality of display sections 35 are arranged in a horizontal row. One letter (alphabet), numeral (one-digit number from 0 to 9), symbol, etc. is displayed in one section 35, so one display section 35 is called one digit. The display panel 34 can be configured by a liquid crystal display by arranging a plurality of dot display tubes (for example, a fluorescent display tube) side by side and by other dot displays.

FIG. 4 is an enlarged view of the display section 35 for one digit of the 5 × 7 dot display. This display area 35 has 35 dots of S1 to S35 arranged in 5 dots horizontally and 7 dots vertically.
It consists of segment 36.

The display area 35 need not be limited to 5 × 7 dots. For example, 7 × 9 may be used, or another arbitrary dot arrangement can be adopted.

In the following description, the operation of the display having the display section 35 of 5 × 7 dots will be described as an example, but it goes without saying that an arbitrary dot arrangement can be used. The dot pattern stored in the ROM 32, 42 may be slightly modified according to the dot arrangement on the display.

(2) Coand format and glyph pattern Hangul characters have consonant glyphs (hereinafter simply consonants).
It consists of 21 pieces of vowels, 21 vowels (hereinafter simply referred to as vowels), and 27 patches (final consonants) as consonants + vowels and consonants + vowels + patchums. Consonant +
A combination of vowels constitutes 399 characters, and a combination of consonants + vowels + patchums constitutes 10,773 characters. The total number of these combinations is 11,172.

In this combination, consonants are placed on the left or top and vowels are placed on the right or bottom. The patchum is always placed under the consonant + vowel Hangul.

Hangul characters and English alphabets, numbers, symbols, etc. (these are abbreviated as alphanumeric characters) are displayed on the displays 3 and 4. One Hangul character is designated by 16 bits, and one alphanumeric character is designated by 8 bits.

FIG. 5 (A) shows the format of the Hangul character designation code. The most significant bit (15th bit) is a classification code for identifying Hangul characters or alphanumeric characters,
If this bit is 1, it is a Hangul character, and if it is 0, it is an alphanumeric character (although the alphanumeric code is composed of 8 bits as described later). The other 15 bits are from the upper 5
It is used to specify consonant, vowel and patchum bit by bit. That is, the 14th to 10th bits are consonant codes, the 9th to 5th bits are vowel codes, and the 4th to 0th bits are patchum codes. The possible range of these codes is shown in FIG. 5 (B). Since there are 19 types of consonants as described above, these are designated by the codes 00001 to 10011 ($ 01 to $ 13 in hexadecimal notation). There are 21 vowels, so the code is 0000
Specified with 1 to 10101 ($ 01 to $ 15 in hexadecimal notation). Since there are 27 types of BATCHUM, among the codes 00000 to 11111 (hexadecimal expression $ 00 to $ 1F), hexadecimal expression $ 10, $ 11,
Specified by 27 codes excluding $ 13, $ 00 and $ 1F. The patchum has the same consonant and letter in 16 of them, so its dot pattern is shared with the consonant, as will be seen later. Of the 19 consonants, only 3 are consonants that cannot be patchum, and these are specified by the codes $ 10, $ 11, and $ 13, so these codes are excluded. In addition, at $ 00 and $ 1F, it is considered that there is no patch.

In this way, 11,172 Hangul characters can be specified by the amount of information of 16 bits.

FIG. 6 (A) shows a code format for designating alphanumeric characters. ASCII code for alphanumeric characters or JIS
In the 7-unit code, all alphanumeric characters are represented by 7 bits. The most significant bit (7th bit) is always 0. In this embodiment, such a conventional code system is also used. That is, the most significant bit 0 of the 8-bit alphanumeric code represents the alphanumeric character with the classification code,
Specify the alphanumeric characters with the other 7 bits. The range of this alphanumeric code is 00000000 to 01111111 ($ 00 in hexadecimal notation)
~ $ 7F).

7, 8 and 9 show the above-mentioned consonant chords,
It shows the actual consonant vowels, vowel vowels and patchum vowels specified by vowel chords and patchum chords. In these figures, the 5-bit code is divided into upper 1 bit and lower 4 bits, and these are represented by hexadecimal numbers.

Consonants are placed to the left or above in the composition of Hangul characters as described above. All consonants may be placed on the left and may be placed on top. Consonants when placed to the left in the structure of Hangul characters are called side consonants and abbreviated as CV. The consonant placed on top is called the upper consonant and is abbreviated as CH (see FIG. 7).

Vowels are placed to the right or below in the composition of Hangul letters. Referring to FIG. 8, chord $ placed to the right of the consonant
The vowels of 01 to $ 04 and $ 0A to $ 0E are named vertical vowels and are abbreviated as VV. The vowels with codes $ 05 to $ 09 placed under the consonants are named horizontal vowels and are abbreviated as VH. In addition, there are vowels composed of vertical vowels and horizontal vowels. It is code $ 0F ~ $
It is specified by 15 and is generally called a compound vowel in order to distinguish it from what is generally called a compound vowel, and is abbreviated as VH + VV.

In general, 10 vowels with codes $ 01 to $ 0A are called basic vowels, and 11 vowels with $ 0B to $ 15 are called compound vowels. There are two types of compound vowels, one composed of a combination of basic vowels and the other composed of a combination of a compound vowel and a basic vowel. The compound vowel is used as a term that mainly refers to the latter (with some exceptions).

There are two types of patchums, one with the same consonant as the consonant (chords $ 01 to $ 0F, $ 12) and the other with two consonants (chords $ 14 to $ 1E). I will call it. Both abbreviations are CP.

As described above, one display section 35 in the display panel 34 is composed of the dot segments 36 of 5 dots in the horizontal direction and 7 dots in the vertical direction. Since the number of dots is small, one Hangul character can be displayed in one display section 35. May not be. Therefore, when one display area cannot be displayed, one hang-up character is displayed over two or three display areas. Generally, it is difficult to read when displaying over two or three display sections, but the device is designed to maintain the optimum display quality so that it is as easy to read as possible.

FIG. 10 shows that the total of 11,172 Hangul characters are classified into 9 types of display patterns due to the limit of the number of dots on the display 5 × 7 and the Hangul character pattern. Further, FIG. 11 shows the separation of the display patterns based on the vowel. This classification table is stored in ROM 32 or 42.

Referring also to FIG. 3, patterns 4 and 5 show combinations that can be displayed in one display section. Patterns 1, 2, 6, 7, and 8 are combinations that can be displayed in two display areas,
Symbols 9 and 9 respectively indicate Hangul character patterns displayed over three display sections.

From the Hangul character display pattern shown in Fig. 10, what consonant vowel dot pattern, vowel vowel dot pattern, can be stored in the ROM32, 42 that functions as a character generator.
Understand that it is necessary to create the patch pattern mother dot pattern in advance.

Referring to this figure, the side consonant CV among the consonants is the vertical vowel VV.
Used in combination with (VV ₁ , VV ₂ ) (Display patterns 1 to
3). For side consonants CV, it is sufficient if there is only one type of dot pattern for each character, and for 19 side consonants CV, the example is first
This is shown in Fig. 2 (A).

Upper consonant CH (CH ₁ , CH ₂ ) is a horizontal vowel VH (HV ₁ ,, VH ₂ ,, VH ₃ ,, V
H ₄₎ in combination with the use (display pattern 4-9, in particular display pattern 4-6). A standard dot pattern for 19 upper consonants is created as shown in FIG. 12 (B). This is called upper consonant CH ₁ . Depending on the combination method, a dot pattern with a small number of vertical dots may be required (for example, display pattern 5), so in addition to the standard dot pattern above, for the specific 5 upper consonants, As shown in the figure, another type of dot pattern is created in advance. This is called upper consonant CH ₂ .

For consonants, even if it is a side consonant CV, the upper consonant CH
However, (CH ₁ and CH ₂ ) are designated by the same code (see FIG. 7).

With regard to the dot patterns of the 9 vertical vowels VV (display patterns 1 to 3), in order to obtain the optimum display quality, _one with a large number of vertical dots (this is VV ₁ ) and _one with a small number of vertical dots (this is VV ₁ ) ₂ ) and two types have been created. An example thereof is shown in FIG. 12 (C).

As for horizontal vowels VH (display patterns 4 to 6), four types are created depending on the number and position of vertical dots, an example of which is shown in FIG. 12 (D). these
Distinguish by VH ₁ , VH ₂ , VH ₃ and VH ₄ . There are five horizontal vowels, but not all of them have four types of dot patterns, and they are set as needed.

As described with reference to FIG. 8, the vertical vowels and the horizontal vowels have different designation codes.

The vowels of display patterns 7 to 9 are compound vowels (code $ 0F
~ $ 15; see Fig. 8), it can be decomposed into horizontal vowels VH and vertical vowels VV, and can be displayed by a combination of these VH + VV.
For example, in display patterns 7 and 9, VH ₁ or VH ₂ + VV
₁ , in pattern 8, VH ₁ or VH ₂ + VV ₂ . Therefore, no dot pattern has been created for compound vowels.

The patchum CP is located below the vertical vowel (display pattern 2,
8) or the position to the right of the Hangul characters (display pattern 3,6,9)
Placed in. For the 27 patchmes including the Toul patchum, as shown in FIGS. 12 (E) and (P), for the standard dot pattern (CP ₁ ) and the specific 5 patchmes, Dot pattern with a small number of vertical dots (CP ₂
And)) is defined.

The 109 dot patterns shown in FIGS. 12A to 12F are stored in advance in the ROMs 32 and 42 (and the ROM 52) functioning as the character generator. Figure 13 shows the relationship between these dot patterns and codes. A circle indicates that there is a dot pattern. The numbers in parentheses indicate the number of dots that occupy the vertical direction (hereinafter referred to as the number of vertical dots). Sub chords are used to distinguish between two types of upper consonants, two types of vertical vowels, four types of horizontal vowels, and two types of patchums.
Data indicating the number of vertical dots shown in parentheses is also stored in the ROM in advance in the form of a table. The first
In Fig. 3, for convenience of tabulation, chords and Hangul letters are commonly used for some consonants and patchums.

As described above, since the dot pattern of the compound vowel is created by the combination of the horizontal vowel and the vertical vowel, the dot pattern of the compound vowel is not stored in the ROM. Instead of this, a combination table of horizontal vowels and vertical vowels is created in advance as shown in FIG. 14 and is set in the ROMs 32 and 42 in order to generate a dot pattern of compound vowels.

(3) Generation of Hangul characters Figure 15 shows the format of the display (or print) command given to the sub CPU 31 or 41 by the main CPU 11.
And the characters instructed from this command are displayed (printed)
This is what is done. In the display command, a code (character code data) that specifies the character to be displayed after the command code is arranged in the order of the display position. As described above, one Hangul character is designated by a 2-byte (16-bit) code, and alphanumeric characters are designated by a 1-byte (8-bit) code. Generally, Hangul characters and alphanumeric characters are mixed in the character code data. Moreover, the number of bytes is different between the Hangul character code and the alphanumeric code. Therefore, the sub CPU 31 or 41
Must first distinguish between Hangul and alphanumeric characters when it receives a display command.

When the display command is sent from the main CPU 11, it is temporarily stored in the display command area of the RAM 33 or 43 connected to the sub CPU 31 or 41 or another appropriate buffer. An address pointer is used for designating this store location, and the address pointer designates the location of 1 byte as one unit. For simplification of explanation, as shown in the interruption in Fig. 15, the address point of the storage location of the first 1 byte of the character code data in the display command is 0, and the next 1 byte of data. It is assumed that 1 byte of store locations are consecutively numbered as address points, such as 1.

FIG. 22 shows a process of discriminating Hangul characters from alphanumeric characters in a display command executed by the sub CPU 31 or 41.

The address pointer is first initialized and set to a value indicating the address point (ie 0) of the first store location (step 101). From the point indicated by this address pointer, it is checked whether the most significant bit of 2-byte code data is 0 or 1 (steps 102, 10).
3). As described with reference to FIG. 5 and FIG. 6, the most significant bit is the partition code, and if this partition code is 1, the 2-byte code data including it is the Hangul character, 0 In the case of, the 1-byte code data including it indicates alphanumeric characters.

If the most significant bit = 1, it is determined to be a Hangul character code, and the code range that this code can take is $ 8240
It is checked whether it is between ~ $ CEBF (steps 104, 105). If it is within this range, it is determined that it is a Hangul character code and that fact is stored in a predetermined area of RAM 33 or 43 (step 106). If it is outside the above range, it is determined that it is an undefined code. The same is stored in RAM (step 107). After this, the address pointer is incremented by +2, the process returns to step 102, and similar processing is repeated.

If the most significant bit is 0, it is determined to be an alphanumeric code and that fact is stored in RAM (step 109), the address pointer is incremented by 1 (step 110), and step 102 is entered.
Return to

When the analysis of all the character code data in the display command is completed by repeating the above processing (step 111), this determination processing ends.

Based on the result of this analysis, the process of generating the dot pattern represented by each code is proceeded to, and the combination of Hangul characters and alphanumeric characters as shown in the bottom of FIG. 15 is displayed on the display 3 or 4. Will be done.

The display of alphanumeric characters and Hangul characters on the display device 3 or 4 is performed by setting the display position on the display device as described later.

Since it is sufficient to display one designated alphanumeric character in the one display section 35 at the designated position, it can be performed in a conventionally known manner as long as the display position is determined. Of course, alphanumeric dot patterns are also stored in ROM 32 or 42.

The dot pattern generation and display process for Hangul characters is rather complicated. First, the process of generating Hangul characters will be described with reference to FIGS. 23 to 25. This processing is executed by the sub CPU 31 or 41.

Referring to FIG. 23, a 2-byte (16-bit) character code determined to be a Hangul character code by the above analysis process is read into a buffer or the like, and this is read as a classification code (1 bit) and a consonant code ( 5 bits), vowel code (5 bits) and patchum code (5 bits) are decomposed (step 121). The state of this decomposition process is shown in the upper part of FIG. 16 and in the interruption. If the 2-byte Hangul character code is $ 843F in hexadecimal notation, the consonant code is $ 01, the vowel code is $ 01, and the patchum code is $ 1F.

Next, by decoding the batch code, it is judged whether or not there is a patch (step 122). The possible range of the patch code is $ 01 to $ 0F, $ 1 as shown in Fig. 9.
Since it is 2, $ 14 to $ 1E, it is sufficient to inspect whether it is within this range. Since the code $ 1F is not within the above range, it is determined that there is no patch.

In the case of no patchum, referring to FIG. 11, the displayed pattern types are patterns 1, 4 or 7 and these are classified by the type of vowel. Therefore, the type of vowel indicated by the vowel code is checked (step 123),
If the vowel code is a vertical vowel, the display pattern 1 is generated (step 124); if it is a horizontal vowel, the display pattern 4 is generated (step 125); if it is a compound vowel, the display pattern 7 is generated. (Step 126).

In the example shown in FIG. 16, since the vowel code $ 01 is a vertical vowel, the display processing of the display pattern 1 (step 124)
Is performed. This process is the simplest. Display panel
Two designated display areas 35 in 34 are used, and the first display area is a dot indicated by a consonant code.
The pattern is one of the two types of dot patterns specified by the vowel code in the second display section.
VV ₁ is displayed respectively. A display example in the case of the consonant code $ 01 and the vowel code $ 01 is shown in the lower part of FIG.

The display pattern 4 is divided into two patterns. It is a combination of the upper consonant CH ₁ and the horizontal vowel VH ₁ (this is called pattern 4-1), and a combination of the upper consonant CH ₁ and the horizontal vowel VH ₂ (this is called pattern 4-2). These two display patterns are shown in FIG.

The vertical bit number of the upper consonant CH ₁ is, as can be seen from FIG. 13,
3 or 4. On the other hand, the horizontal vowel VH ₁ has 3 or 1 vertical bits. Therefore, in any combination of the upper consonant CH ₁ and the horizontal vowel CH ₁ , the total vertical bit number of them does not exceed the vertical bit number 7 of the display section 35. The display pattern 4-1 can be displayed.

However, in the combination of the upper consonant code $ 04, $ 0C or $ 0E and the horizontal vowel code $ 07 or $ 08, the character generated by combining dot pattern CH ₁ and VH ₁ is very Become hard to learn. Therefore, instead of the dot pattern VH ₁ for horizontal vowels, the dot pattern VH 2 having a vertical bit number of ₂ is used. Then, one dot space is placed between the upper consonant dot pattern CH ₁ of the upper half and the horizontal vowel dot pattern VH ₂ of the lower half. This is the display pattern 4-2.

Therefore, in the generation process of the display pattern 4 in step 125, first, it is determined whether or not the combination of the upper consonant and the horizontal vowel in the given character code is the specific one that should be the pattern 4-2 described above. If it is not the specific one, it is displayed in one display section according to pattern 4-1 and if it is the specific one, it is displayed in one display section according to pattern 4-2. The manner in which the dot pattern of display pattern 4-2 is generated is shown in FIG.

The method of the generation processing of pattern 4 is used in the generation processing of patterns 6, 7, 8 and 9 described later.

The details of the algorithm for generating the display pattern 7 in step 126 are shown in FIG. Further, FIG. 19 shows an example of a process of generating a Hangmu character containing compound vowels according to this algorithm. Referring to these figures, the compound vowels are first decomposed into horizontal vowels and vertical vowels (step 131). As mentioned above, the dot pattern of compound vowels is not created in advance,
Instead, a combination table (see FIG. 14) of horizontal vowels and vertical vowels that form a compound vowel is stored in the ROM 32 or 42. With reference to this combination table, the horizontal vowels (VH ₁ or V
Find the chord of H ₂ ) and the chord of the vertical vowel (VV ₁ ). In the example of FIG. 19, the compound vowel of code $ 0F is specified, so this is the horizontal vowel of code $ 05 and the code $$.
It turns out that it can consist of 01 vertical vowels.

The Hangul characters of the display pattern 7 are displayed using the two designated display sections 35 of the display panel 34. Next, the dot pattern of the upper consonant CH ₁ designated by the consonant code and the horizontal vowel (VH ₁ or V
H ₂ ) and H ₂ ) are combined by the above-described method of creating the display pattern 4 and displayed in the first display section (step 13
2). In the example of Fig. 19, the upper consonant of code $ 01 and code $ 05
Is combined with the horizontal vowels of. Subsequently, the vertical vowel (VV ₁ ) and the dot pattern retrieved in the above process are displayed in the second display section (step 133).

When it is determined in step 122 in FIG. 23 that the patch is present, the process proceeds to the process shown in FIG. Here again, the vowel code is first checked to determine whether it is a vertical vowel, a horizontal vowel, or a compound vowel (step 141).

In the case of a vertical vowel, the display pattern is 2 or 3 as can be seen from the classification table of FIG. Display pattern 2
Displays one Hangul character in two display sections, and the display pattern 3 is displayed using three display sections. Since it is preferable to display one Hangul character in as few display sections as possible, it is first checked whether pattern 2 can be displayed (step 142). In each of the display patterns 2 and 3, the side consonant designated by the consonant code is displayed in the first display section.
Therefore, whether or not the combination of vertical vowels (vowels VV _{2 with} a small number of vertical dots) and patchum CP ₁ that make up Hangul characters fit in one display area is the target of the check.

Referring to FIG. 13, the vertical vowel VV ₂ has 3 or 4 vertical dots, and the patchum CP ₁ has 3 or 5 vertical dots.
Is. Therefore, the combinations that can be displayed in one display section with 7 vertical dots are the vertical vowel VV ₂ with 3 vertical dots and the patchum CP ₁ with 3 vertical dots, the VV ₂ with 3 vertical dots and the CP with 4 vertical dots. ₁ and VV ₂ with 4 vertical dots and CP _{1 with} 3 vertical dots
Is. In these cases, the dot pattern of display pattern 2 is generated (step 145). In this process, the dot pattern of the vertical vowel VV ₂ specified by the vowel code and the dot pattern of the patchum CP ₁ specified by the patchum code are combined and displayed in the second display section.

In the case of combinations other than the above combinations, the display pattern 3 is generated (step 146). In this process, the second
The VV ₁ pattern with the largest number of vertical dots among the vertical vowel dot patterns specified by the vowel code is displayed in the 3rd display area, and the patch pattern CP ₁ dot pattern specified in the 3rd display area is displayed. To be done.

If the vowel type is determined to be a horizontal vowel, it is checked whether the Hangul characters can be represented by the display pattern 5 (step 143). Display pattern 5 is 1 combination of consonant, vowel and patchum.
It fits in the display area. If the combination of the display patterns 5 is possible, the designated Hangul characters are displayed in this pattern 5, and if not possible, the display pattern 6 is used. The display pattern 6 displays a combination of consonants and vowels in the first display section and a patchum in the second display section to express one Hangul character in the two display sections.

The display pattern 5 is the display patterns 5-1 and 5-2 as shown in FIG.
And 5-3. The display pattern 5-1 is a consonant dot pattern CH ₂ with ₂ vertical dots and ₂ vertical dots.
The vowel dot pattern VH ₃ and the patchum dot pattern CP ₁ having three vertical dots are vertically arranged. Display pattern 5-2 is CH ₁ with vertical bit number 3, VH ₄ with vertical dot number 2 and CP ₂ with vertical dot number 2, and pattern 5-3 is CH ₁ with vertical dot number 3 and vertical dot number 1 It is composed of VH ₃ and CP ₁ having three vertical dots. Since the higher the number of vertical dots in the uppermost consonant is, the higher the quality of Hangul characters can be expressed, the pattern 5-2 is preferentially adopted over the display pattern 5-1. FIG. 21 shows the consonants, vowels, and patch vowels constituting these display patterns 5-1 to 5-3.

Hangul characters specified by the code are pattern 5
In checking whether it can be expressed by any of -1 to 5-3, the vowel code is first checked.
Vowel chords with dot pattern VH ₄ ($ 05, $
If it is 06, $ 07, $ 08), there is a possibility that it can be expressed by display pattern 5-2. In this case, the consonant code then indicates a letter having an upper consonant dot pattern CH ₁ with 3 vertical dots (some CH ₁ have 4 vertical dots), and patch -Pattern 5-2 is selected on the condition that the code indicates a character having a dot pattern CP ₂ having two vertical dots. Although a vowel code has a dot pattern VH ₄ (this vowel code has a dot pattern VH ₃ ), if the above consonant and patchum conditions are not met, the next consonant is The code has a dot pattern CH ₂ with ₂ vertical dots (CH ₂ with ₂ vertical dots is included in CH ₁ with 3 vertical dots), and the patch code is a dot with 3 vertical dots.
It is determined that the display pattern 5-1 can be displayed on the condition that the pattern CP ₁ is included. The vowel chord is a dot
If the consonant chord or patchum chord does not satisfy the conditions of the display patterns 5-1 and 5-2 even if it has the pattern VH ₄ , it is determined to be expressed by the display pattern 6.

To check whether the remaining display pattern 5-3 can be expressed, the vowel code is a dot pattern with 1 vertical dot.
Check if it has VH ₃ (this is only vowel code $ 09), and if so, the consonant code is 3 vertical dots
The display pattern 5-3 is adopted on condition that the patch pattern has a dot pattern CH ₁ of ₁ and the patchum code has a dot pattern CP ₁ of 3 vertical dots. In other cases, the display pattern 6 is displayed.

If it is determined that the display pattern 5-1, 5-2 or 5-3 can be displayed, the dot pattern corresponding to the pattern is displayed.
The Hangul characters specified in one display section are displayed by reading them from the ROM 32 or 42 and superposing them (step 147).

In other cases, the process proceeds to the process of generating the display pattern 6 (step 148). In the display process of this display pattern 6, the dot patterns CH ₁ and VH ₁ or VH ₁ of the given consonant code and vowel code are displayed in the first display section.
VH ₂ is displayed according to the same method as the display pattern 4 shown in FIG. 17, and the patch area is displayed in the second display area.
The display pattern CP ₁ specified by the code is displayed.

When it is judged in the analysis of the vowel code in step 141 that there are multiple compound vowels, it is judged whether or not it can be expressed by the display pattern 8 (step 144). Display pattern 8
Represents one Hangul character in two display sections. If the display pattern 8 cannot be expressed, the display pattern 9 that expresses one Hangul character using three display sections is adopted.

The determination of whether expressed in display pattern 8, as in the case of the display processing of the display patterns 7, the horizontal vowels multi people if vowel using the table shown in FIG. 14 (VH ₁ or V
H ₂ ) and vertical vowels (VV ₁ or VV ₂ ). next,
It is determined whether or not it can be expressed by the decomposed vertical vowels, the given patchum, and one display section, by using the same method as the processing of whether or not the display pattern 2 can be expressed. If it can be displayed, the pattern 8 is adopted, and if it cannot be displayed, the pattern 9 is used.

If the display pattern 8 can be displayed, the dots used for the consonant code (CH ₁ ) and the above-described decomposed horizontal vowel code (VH ₁ or VH ₂ ) are _first determined by the method used in the display process of display pattern 4. The patterns are vertically overlapped and displayed in the first display section, and then the decomposed vertical vowels and the dot pattern of the designated patch are displayed in the second display section (step 149). When the display pattern 9 is displayed, the same processing as the pattern 8 is used for the first display section and the same processing as the pattern 3 is used for the second and third display sections (step 150).

(4) Display Device and Display Digit Position Control Prior to the description of the process for determining the display position (display digit position) on the display device 3 or 4, the problem of the present invention will be described. As described above, one Hangul character is displayed in one display area depending on the character, and 2 or 3
Some are displayed in the display area, and the size of the characters varies. Therefore, there is a problem that it is difficult to read when these are mixed to form one word or sentence.

In FIG. 26, the character codes given by the display commands are sequentially displayed in the display sequence of the display panel 34 from the left to the right in the order of arrangement in the command without creating a display region that is not displayed. 2 and the corresponding display command. Since one display section 35 of the display panel 34 is called one digit, the corresponding 8 bits in the character code data will be called one digit. In Figure 26, the display command is 20
It is assumed that the display panel 34 is also provided with 20-digit display sections (20 display sections) 35 that are composed of digits.

FIG. 26 (1) shows a case where the character code data in the display command includes only an alphanumeric code. As described above, since one alphanumeric character indicated by the one-digit alphanumeric code is displayed in one display section, the problem of being difficult to read does not occur.

In Fig. 26 (2), the character code data in the display command consists only of Hangul character codes, and this Hangul character code can display one character in one display section (that is, Hangul characters in Fig. 10 pattern 4). Shows the case where is specified. This display example does not have the problem of being difficult to read.

In Fig. 26 (3), the character code data in the display command consists of only the Hangul character code, and this Hangul character code can display one character in two display sections (for example, Hangul character in Fig. 10 pattern 1). Shows the case where is specified. One Hangul character is displayed in the 2-digit display area 35, so it is not easy to read, but it is not so difficult to read because the character size is uniform.

In FIG. 26 (4), the character code data in the display command consists only of Hangul character codes, and this Hangul character code requires three display sections to display one character (for example, pattern 9 in FIG. 10). () Shows the case where the Hangul character is specified. Since one Hangul character is displayed in the three-digit display area 35, it is somewhat difficult to read.

Fig. 26 (5) shows an example in which the alphanumeric code, the Hangul character code requiring 2 display areas and the Hangul character code requiring 3 display areas are mixed in the character code data of the display command. Shows. Since the size of the humble characters varies, it takes some time to recognize one character and it is difficult to read.

Figure 26 (6) shows an example in which the alphanumeric code and the code of Hangul characters that can be displayed in one display area are mixed in the character code data of the display command. All characters are in one display area. Since it is displayed at, there is no problem in reading.

The present invention provides a structure that is relatively easy to read even when the size of displayed characters is different, as shown in FIG. 26 (5).

 First, the first example will be described.

As shown in FIG. 29 and FIG. 30, a transparent front cover 60 is provided on the display 3 (same for the display 4). A block frame 61 is drawn on the front cover 60 at a position located in front of the display panel 34 (the front surface of the fluorescent display tube 3a or the like). The block frame 61 is at a position including the two adjacent display sections 35 and has the size thereof. 20-digit display area
Ten block frames 61 are arranged side by side with respect to 35.

The Hangul character pattern generated by the above process is displayed as follows corresponding to each block frame 61. First
As for Hangul characters that can be expressed in one display section (one digit), refer to Fig. 27 and two display sections in the block frame 61.
The generated Hangul character pattern is displayed in the right (second) display area. Two display sections 35 in the block frame 61 are used for displaying Hangul characters expressed by two display sections (two digits). For Hangul characters that require three display areas (three digits) for display, the two display areas 35 of the first block frame 61 and the first one in the next (second) block frame 61 A display section 35 is used. In this way, in principle, one block frame 61
One Hangul character is displayed in the box, and exceptionally 3
Two adjacent block frames are used for Hangul characters that require digits. The order of the Hangul characters arranged on the display panel 34 is the order of display commands.

RAM33 (or 34) as described above with reference to FIG.
The display command area of is marked with an address point. Similarly, the display section 35 is also assigned consecutively numbered address points from the left side, and the display section at the beginning of the Hangul characters to be displayed is specified by the content of the display address pointer indicating this address point. .

The procedure for determining the display digit position is shown in FIG.
By the above processing, one Hangul character pattern is generated, and the number of display digits required for generating the Hangul character is determined (steps 161, 162).

In the case of Hangul characters that can be displayed in one digit, the display address pointer is incremented by 1 to specify the second display section within one block frame (step 163), and the address
Designated by the pointer (Hangul characters are displayed in one display section (step 164). After that, the display address pointer is incremented by 1 to specify the first display section of the next block frame (step 164). 168), the address pointer of the display command area is incremented by 2 to read the next 2-digit Hangul character code in the display command (step 169).
The Hangul character code designated by the pointer is then read out and the process returns to step 161, and the dot pattern is generated.

In the case of Hangul characters displayed in 2 digits, the Hangul characters are displayed in two display areas (included in one block frame), the display area specified by the display address pointer and the next (second) display area. The pattern is displayed (step 165). The address pointer is incremented by 1 when designating the second display section. After this, step 168
Proceed to.

If three display areas are required to display one Hangul character, the first display area specified by the display address pointer, the second display area next to it, and the third display area The character pattern is displayed in the display section (step 166). The contents of the display address pointer are also incremented by 1 when displaying in the second and third display sections. Then, the display address pointer is incremented by 1 in order to make the fourth display area blank (step 167), and the process proceeds to step 168.

By the above processing, a relatively easy-to-read display as shown in FIG. 27, for example, becomes possible.

Although alphanumeric display digit positions are not mentioned, in the case of alphanumeric characters, one character may be displayed in one display area or one block frame.

A second example for providing a legible display is shown in FIG. A line-shaped display 62 is provided on the display panel 34 at a position below them throughout the display section 35. The line-shaped display 62 is formed by arranging a large number of display elements (for example, light emitting diodes) in a line. Then, as shown in black, the display element lights up only for the digit position for the one-digit representation character, over the two digits for the two-digit representation character, and over the three digits for the three-digit representation character, and one character is displayed. It shows the range of the size of. In this example, the display digit position is determined by expanding the character pattern in the order of arrangement of the character codes in the display command so as not to provide a blank display section.

Further, the light emitting elements may be arranged around each display section, and the frame indicating the range of one character may be formed by the light emitting elements that are turned on.

[Brief description of drawings]

Fig. 1 is a perspective view showing the appearance of the ECR, Fig. 2 is a block diagram showing the electrical structure of the ECR, Fig. 3 is a front view showing the structure of the display panel of the display in the ECR, and Fig. 4 is the above display. It is a figure which shows the dot segment of the display area of a panel. FIG. 5 (A) is a diagram showing the format of the Hangul character designation code, FIG. 5 (B) is a diagram showing the range of the same designation code, and FIG. 6 (A) is the format of the code designating alphanumeric characters. And FIG. 6 (B) are diagrams showing the range of the designated code. Figure 7 shows the correspondence between consonant chords and consonant kanji,
FIG. 8 is a diagram showing a correspondence relationship between vowel chords and vowel letters.
FIG. 9 is a diagram showing a correspondence relationship between a patchum code and a patchum character. FIG. 10 is a diagram showing types of display patterns, and FIG. 11 is a diagram showing classification of these display patterns based on vowels. FIGS. 12 (A) to 12 (F) are dot characters for character display stored in the ROM as a character generator.
It is a figure which shows the example of a pattern. Figure 13 shows the dots that have been created and stored.
FIG. 14 is a diagram showing patterns arranged for each character and its designated chord, and FIG. 14 is a table showing combinations of horizontal vowels and vertical vowels constituting a compound vowel. FIG. 15 is a diagram showing the format of a display command and how characters designated by this command are displayed. FIG. 16 is a diagram showing how the Hangul characters of display pattern 1 are displayed by decomposing the designated code. FIG. 17 shows how the display pattern 4 can be classified into two types, and FIG. 18 shows the generation of Hangul characters of the display pattern 4,
It is a figure which shows a display process. FIG. 19 is a diagram showing a process of generating and displaying Hangul characters of the display pattern 7 including compound vowels. FIG. 20 is a diagram showing that the display patterns 5 can be classified into three types, and FIG. 21 is a diagram showing the character patterns of the display patterns 5 divided into three types, arranged in a concrete manner. FIG. 22 is a flow chart showing a processing procedure for distinguishing Hangul characters from alphanumeric characters performed by the sub CPU when receiving a display command. 23 to 25 are flow charts showing Hangul character creation and display processing procedures of various display patterns executed by the sub CPU. Figure 26 (1) to (6) shows the character code in the display command.
The data and a display example in which a character pattern is expanded in order of arrangement of character codes so as not to generate a blank in the display section are shown. FIG. 27 shows an example showing how the display column position is determined in relation to the block frame provided by the present invention, and FIG. 28 shows another display example showing the display range of characters. . FIG. 29 is an enlarged front view of the display, and FIG. 30 is an enlarged side view. FIG. 31 is a flow chart showing the procedure for determining the display digit position. FIG. 32 shows the display command area and the address points of the display section of the display unit. 1 …… ECR, 3,4 …… Display unit, 3a …… Fluorescent display tube, 5 …… Printer, 11 …… Main CPU, 12 …… Main CPU ROM, 13 …… Main CPU RAM, 31, 41 …… Sub CPU for display processing, 32, 42 …… Works as character generator for sub CPU
ROM, 33, 43 …… Sub CPU RAM, 34 …… Display panel, 35 …… Display area, 36 …… Dot segment, 60 …… Front cover, 61 …… Block frame, 62 …… Line display .

Claims (3)

[Claims] 1. When a display command including a series of character code data representing a plurality of characters to be displayed is given, a plurality of characters designated by the display command are arranged in a multi-digit display section. Displayed on a display device that has one character and the number of display areas occupied by the one-character display specified by the one-character code in the display command differs depending on the character. A display processing device characterized by. 2. A display for clearly indicating a one-character display section is a block frame surrounding a plurality of display sections provided at a predetermined position, one for each one or a plurality of block frames.
The display processing device according to claim (1), which displays characters. 3. The display processing device according to claim 1, wherein the display clearly indicating the display partition of one character is a display showing the range of the display partition of one character.