JPH02244376A - Universal language display system - Google Patents

Abstract

PURPOSE: To display a figurative language in response to plural input methods by generating a video display signal to a video terminal in response to the internal code display of an attribute and the internal code display of alphabets or ideograms. CONSTITUTION: A processing means 26 acts to fetch alphabet characters shown by an internal code from a memory 44 in response to the keying of alphabet marks, to fetch the ideogram shown by the internal code from the memory 44 in response to the keying of the plural figurative marks and to fetch the attribute shown by the internal code from the memory 44 in response to the keying of the attribute. A video character generator 32 generates the video display signal to the video terminal 10 in response to the internal code display of the alphabet characters or the ideogram, and the internal code display of the attribute. Thus, the figurative language is displayed in response to the plural input methods.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a computer system capable of displaying alphabetic and ideograph language on a video display φ terminal.

[Conventional technology]

Western European languages use the 26-letter Roman alphabet that can be combined to form words and 10 digits that can be combined to form numbers. These alphabetic characters are routinely processed in a large number of computer word processing systems that need not be mentioned.

Eastern languages use ideograms to represent words or ideas. A typical Far Eastern language consists of nearly 10,000 to 50,000 different characters. There are often multiple types of typefaces used in a country's language. For example, Chinese has both old and modern typefaces.
Japanese has hieroglyphic kanji and phonetic kana forms. Producing a computer-paced word processing system capable of processing even a single Far Eastern language is more complex than similar Aljabe and Tongue language systems.

The size of the key gate poses a major problem in that even the largest systems require multiple keystrokes for a single character.

Different input methods have been created to translate keystrokes into the correct characters. For example, in Chinese, these are radical codes,
Radical input methods, including phonetic code, idiom code and character code input methods, are used to input 1 radicals or elementary symbols assigned to various keys on the keyboard when assembling professional characters to form characters. use. The radical input method is as follows:
Have a fixed number of strokes to form a letter, have a variable number of strokes, or use only the first radical or only the first and last radicals to form a letter, etc. in many ways. There is. In most of these cases, when a character cannot be identified, the computer is programmed to output a group of characters from which to choose. The phonetic input method is based on specific radicals and pronunciations. Therefore, the combination, -yu, selects one letter or several possible letters for its pronunciation. The idiom input method is based on a group of characters formed by the user and assigns a unique code to them. The main reason for using the idiom entry method is to eliminate entries in repetitive data blocks.The zero character code entry method is to allow the entry of characters according to their internal codes. Although this input method is generally considered slower than other methods, it is particularly useful in cases where characters are difficult to form when esoteric or code tables can be used. The idiom and character code input method can also be applied to Aljabet characters.

In addition to the multiple languages of many Far Eastern countries and the many ways to enter them into a word processor, there are many internal codes used to store and transmit that information. for example,
One internal code used in China is Tel -Cods.
, Big-5, National 5 standard
dCods, and 5550 codes. Although most of the codes use ISO standards and are therefore universal, many computer systems can only use and process one code.

[Problem that the invention seeks to solve]

As mentioned above, most computers are only capable of processing one code, and only a few currently existing computer systems are capable of processing both Alhabbet and ideographic languages. In turn, they rely on the host computer's main processor to run transaction programs. However, it is expensive and complex because it requires modification of the host operating system to handle different character data structures. It also has the disadvantage that special communications hardware, memory, etc. are required.

It is an object of this invention to provide a new and improved method and system for video terminal display of Aljabetian and ideographic languages.

Another object of the invention is to provide a computer system that converts an ideographic language into multiple internal codes.

It is a further object of the present invention to provide a computer system that displays ideographic language in response to multiple input methods.

[Means to solve the problem]

Therefore, the present invention solves the above problems by having the following configuration. The present invention is a video terminal display system and method for Aljabe, T, and ideographs. The system includes a key date, memory, processing means, and a video character generator. The key code includes a plurality of symbol keys having both alphabetic and ideographic modes, and attribute keys that specify attributes of all or any one of the characters. The memory has single-byte internal code representations for alphabetic characters and attributes and two-byte internal code representations for ideographic characters. The processing means fetches the Aljabet character represented by the internal code from the memory in response to a keystroke of the Aljabet symbol;
It operates to fetch the ideograms represented by the internal codes from the memory in response to the plurality of ideographic keystrokes, and to fetch the attributes represented by the internal codes from the memory in response to the attribute keystrokes. The video character generator generates a video display signal to the video-terminal in response to the internal code representations of alphabetic or ideographic characters and the internal code representations of the attributes.

Additionally, the system includes a code buffer and an attribute buffer, where the code buffer stores internal code representations of characters and the attribute buffer stores internal code representations of attributes. Each buffer has 1 byte output. The system further includes parallel character code and attribute code pipelines connecting code buffer and attribute buffer outputs to the video terminal, respectively.

〔Example〕

FIG. 1 is a schematic diagram of a coding system for displaying alphabetic and ideographic characters on a video terminal 10 and transmitting them to a host computer 12.

This system is shown in detail in Figure 2.

A key includes a single hand 14 having a plurality of symbol keys 16 including a to-mode and an ideographic mode. Key symbols are shown in English and Chinese symbols. However, the invention is not limited to those languages, and is not limited to the single Aljabetian and ideographic languages; the key 16a represents the letter "E#" in the English mode, and in the Chinese mode. represents the radical 1〈〈'' and the pronunciation 1 sui'' (water).Each Alhabbet letter is represented by one stroke of the key 16.

On the other hand, ideograms are a combination of ideograms, and generally represent characters by a combination of keystrokes. However, some ideograms can be formed with a single stroke.

The key card 14 includes, for example, an attribute key 18 that specifies attributes or characteristics for all or any one of the characters to be entered and displayed. Attributes can include underlining, lighting, designation of Arno 1 pet characters or ideograms, and the like.

The keypad 14 has a key 20 for selecting between alphabetic mode and ideographic mode.

Encoder 22 of FIG. 1 generates a signal in response to each keystroke on keyboard 14. Encoder 22 of FIG. This signal is simply key 14
is the relative position or location of the key.

Ideographic characters typically have a number of ways to construct them; for example, Chinese can be constructed using a radical input method. In this way, each Chinese character can be viewed as a combination of radicals that can be uniquely defined by a given combination. This invention constructs ideograms using a plurality of input methods. In particular, those who have adopted the radical input method can use the "one-job" method, whereby the combination of radicals inserted in the key code 14 almost always defines one character.' ``For professional or two-key input method, r Yu,'' Some NewA
dvancement In HLgh 5peed
Two-8 stroke Input System =
, Proceedinga -1987Inte
rnationalConference On Ch.
inese and Oriental Language
See geComputing, at 111 J. A "non-professional" method for unskilled people each supplies one or more possible characters for the correct combination of radicals. The user can select the desired character from among them.

Speech input methods define characters by their sounds. In this way, various phonetic symbols are combined to identify a character.

Since letters may have one or more of the same or very similar sounds, this method may not be able to identify just one.

The invention is based on a "non-professional" radical input method and provides one or more possible characters for virtuosic phonetic combinations from which the user chooses.

The invention also provides an input method that allows characters to be entered with their internal codes. Te1-Code
, Big-5, National 5 standard
There are a number of internal codes for Chinese characters, including dCods, and 5550 codes. Each one of these codes has a two-byte binary representation for each character. If the code for a particular character is known, it can be entered from the keyboard 14 as a hexadecimal equivalent.

A means for selecting an input method for ideograms is provided as part of the system. The means is a central processing unit,
) 26 includes one or more keys 24 of keyboard 14 to encoder 22 .

Referring again to FIG. 1, the system includes processing means for processing signals. The processing means includes a central processing unit 26 and a program ROM 28, a table ROM storing a plurality of internal code representations for various alphabetic and ideographic characters, a video character generator 32, and means for controlling the video character generator 32. 34.

A versatile interface adapter (VIA) 36 receives serially encoded key position data from encoder 22. When the adapter 36 receives the data, it sends an interrupt signal to the central processing unit 26 indicating that the key position data has been received. Once it is approved,
Data is transmitted from adapter 36 to central processing unit 26 via data bus 38 . Driver 40 connects data bus 38 between adapter 36 and central processing unit 26.
and boosts the signal passing through it.

Character generator 32 includes a screen buffer 42 consisting of a code buffer 44 and an attribute buffer 46. Code buffer 44 stores the internal code of the character to be displayed on the screen. The attribute buffer 46 stores internal codes of attributes corresponding to the character codes stored in the code buffer 44. Video terminal 10 has a matrix of display cells on its screen, with each encoded character and attribute storage location in screen buffer 42 corresponding to a respective display cell. In the preferred embodiment, screen buffer 42 can hold code and attribute code for two screens. However, larger storage capacities can be used as required.

A feature of the invention is that al7pet characters are displayed in a single display cell, whereas ideograms are displayed in two adjacent display cells. This is generally done to provide the large resolution required for ideograms. The internal code for ideograms is also generally 2 bytes. Another feature of the invention is the code and attribute parameters.

The buffers 44 and 46 are 1-byte buffers. That is, each buffer receives, stores, and transmits data one byte at a time. This is simpler and cheaper than a buffer that handles a large number of data at once. Thus, each two-byte ideographic code is stored in a consecutive location within code buffer 44. Two corresponding attributes in attribute buffer 46 contain a two-byte identification as a single character.

Character generator 32 also connects the output of code buffer 44 and attribute buffer 46 to video terminal 10, respectively.
It includes a parallel character code and attribute code pipeline 48.50 connecting the outputs of the .

The attribute code pipeline 48 includes a D-type filter, a 70 tube 52.54, a multi-breather 56, a turn memory 58, a shift register 60, and a video
Programmer Tools Play Logic for Terminal 10 (
video PAL) 62.

The output of the code buffer 44 is FRI, PFLO.

is connected to the input of tap 52. Flip Flo, f (FF
) 52 is connected to the input of FF 54 and the multi-breather (M
It is connected to the input of the nogturn memory 58 through the UX) 56. The output of FF 54 is also connected to the input of pattern memory 58 through MUX 56. /4' turn memory 58 produces a 24-bit character turn output representing one video line for an ideogram.
Includes 8 bits, 58m, 58b, and 58c. [Since the output for the ideographic video line is 12 bits, only the lower 12 bits from the ROM chip are required. ] The parallel output of pattern memory 58 is received by shift register 60 and sent to programmable play logic 62.

It is converted into a digital style.

Character generator 32 also includes MUX 56 and shift register 60.
and includes a DRAM memory 74 connected between the memory and the memory 74 to provide temporary graph data storage. For example, four turns (for unusable ideograms or other graphical displays) can be stored in DRAM 74. The address of the character so created can be obtained by specifying a value that is not used for the internal code.

Attribute code pipeline 50tiD type FF64゜66
-, attribute logic control 68, and programmable play logic 62, the output of attribute buffer 46 is connected to the input of FF 64, and the output of FF 64 is connected to the input of FF 64.
The output of the FF 66 is connected to the input of the attribute logic control 68, and the output of the attribute logic control 68 is connected to the input of the programmable array logic 62. The output of the attribute logic control 68 is programmable.
Combined with the serial bit character signal of array logic 62, the serial output is sent to video terminal 10 for character display.

Data bus 38 is also connected between the output of pattern memory 58 and asynchronous communication interface adapter 70 for transmitting data to printer 76. The adapter 70 in this embodiment is a 65SC51P-2 chip.

In operation, a program for initializing the system in mode and input method and translating key position codes is loaded into the program ROM 28. Internal code representations for each alphabetic character, each ideogram and each attribute are loaded into table ROM 30. Normal, ASC
Only II codes will be loaded for alphabetic characters and attributes. However, multiple internal codes are loaded for each ideogram. For example, Tel -Code, Big -5, Nati for Chinese
onal 5 standard code and 5550 code are loaded. After system power up 7'', initialization of Alhabbet mode or Ideographic mode is set by key 20 of key date 14.RO
The M28 program translates the position code from key 20 and sets the mode! Sets either mode or ideographic mode.

First, data bus management of Aljabet characters will be explained.

In this case, there is no need to select an input method since that input method is normally applicable only to ideographic entries. When the Aljabet mode symbol key is pressed, the encoder 22 connects to the multi-function interface adapter 36.
transmits a serial position code data signal to the In response to this data signal, adder 36 sends an interrupt signal to central processing unit 26, which reads it by collecting it in an internal register. CPU 26 runs the program in ROM 28 to translate its location code and fetches the correct ASCII internal code from table ROM 30. In other words, the processing means, including the central processing unit 26 and the program ROMZ 8, fetch the internal code in response to key signals from the encoder 22.

Alphabet characters are represented by a one-byte (8 bit) code which is the address of the video dot matrix, second number turn, stored in the first turn memory 58.

The internal codes for alphanumeric characters are stored in the code buffer 44 at a location corresponding to a single cell of the matrix display cell of the video terminal 10. Code buffer 44 is part of video character generator 32 that generates video terminal display signals at the output of programmable play logic 62.

This display signal is combined with the attribute internal code (described later) stored in the attribute buffer 46 and the code buffer 4.
This occurs in response to the character internal code stored in 4.

The video character generator 32 is a cathode ray tube controller (CRT).
C) controlled by 34. To prevent bus contention problems, central processing unit 26 and CRTC controller 34 are configured such that central processing unit 26 controls half of the timing cycles and CRTC 34 controls the other half of the timing cycles. /Use Phi 2 interleap. When the controller 34 takes its turn, the character internal code in the code buffer 44 is FF52.
be swept away by The code is loaded into the FF 64 in the next clock cycle, and the next character code is entered into the pipeline 48 in the same way as it flows from the buffer 44 to the FF 52. MUX56 and pattern memory 5
The codes appearing at 8 are the respective outputs of FFs 52 and 54.

However, aljabet characters are specified by flag bits. When the character pattern in the pattern memory 58 has a flag, the output of the FF 52 is ignored.

Each character turn stored in pattern memory 58 is comprised of a plurality of dot-turn code lines forming a dot-matrix pattern of one cell on the screen of video terminal 10. The number of turns stored in pattern memory 58 depends on the particular style or style and cell size to be displayed on video fist terminal 10. The cell size for alphabetic characters in this example is 13 dots wide.

The height is 29 degrees and the height is 29 degrees. Column 1 and row 5 are taken as blanks for each alphabet stored in pattern memory 58.

It is 4 turns H12X24. Therefore, the output of pattern memory 58 for the algorithm pattern is 12 parallel bits. These bits are passed to shift register 60 from which they are serially shifted out to programmable array logic 62. Programmable array logic 62 receives both character dots and attribute dots and provides a video output signal to video terminal 10. The output of the turn memory 58 is sent as pattern data to a printer 76 and to the central processing unit through an address path 72.

It can also be used to supply addresses available from the host and pattern data obtained from pattern memory 58 along data bus 38.

Next, attribute data bus management will be explained.

One or more attributes can be specified for each character.

When the attribute key is pressed, the encoder 22
6 to transmit a serial position code data signal. Adapter 36 responds to this signal by sending an interrupt signal to CPU 26 which reads the data by integrating it into an internal register. CP running the program in ROM28
U26 interprets the position code and stores it in table ROM30.
Fetch the correct ASCII internal code from. Attributes are represented by a single byte (8 bits, 7 bits), where each bit may represent a particular attribute. For example, one bit may indicate an underline, and another bit may represent a light emission.

This internal code is stored in attribute buffer 46 at a location corresponding to a single cell of the display cell matrix of video terminal 1o. Attribute buffer 46 is part of video character generator 32 that generates video terminal display signals at the output of programmable array logic 62. This display signal is generated in response to character internal codes stored in code buffer 44 and attribute internal codes stored in attribute buffer 46.

As mentioned above, the video character generator 32.

It is controlled by CRTC34. When the CRTC 34 has its turn, the attribute internal code in the attribute buffer 46 is passed to the FF 54. This code is as follows,
In the next cycle, the buffer 46 inputs the next attribute code into the FF line 150 by inputting it to the FF 66 in the same way as it was input to the FF 54. In the next subsequent cycle, the first attribute code is sent to the attribute control logic, RI 68, which converts the attribute code into a signal sent to the programmer's real array logic, RI 62. This signal provides timing (synchronization) and graph data to programmable array logic 62 so that PAL 62 sends synchronized character/attribute signals to video terminal 10, e.g. When a code specifies an underline, a signal sent from control 68 to programmable array logic 62 indicates that it must fill the bottom dot row for that specified character. specifies an inverted image, the signal sent from control 68 to programmable play logic 62 must invert the data received from shift register 60.

Next, after selecting the 0 ideographic mode, which describes the data bus management of ideograms, by pressing the key 24 (FIG. 2), the user presses the symbol key operating in the 0 ideographic mode, which specifies the input mode, and the encoder 22 is Aljabet
It works in the same way as described for mode. That is, encoder 22 transmits a serial position code data signal to multifunction interface adapter 36. adapter 3
6 is a central processing unit that responds to this signal and reads out the data by integrating it into an internal register.
Send an interrupt signal to. The CPU 26 runs the program in the ROM 28 and enters the mode and enters.

Translate this position code to the point of force method and table ROM
30 with a predetermined internal code. The present invention has the feature of being able to communicate with the host combination in any of a plurality of internal codes, but a given one of these internal codes is always used for video display generation. In the preferred embodiment, this code is a Tel code.
The dot matrix is represented by a 2-byte code (height and row bytes) that is the address of the box pattern.

For each ideographic keystroke, one or more character codes are generated by a program stored in program ROM 28. As previously mentioned, for display convenience, one or more characters are defined for each input method in response to one or more keystrokes. Input methods for generating one or more characters and such conveniences in response to keystrokes are known. Main references include Chin
eseCharacter Code for Inf
organization interchange (CCCI)
I), Chinese Character R
e5earch In5ti-tute of R,
O,Ce (CCRL), Peking Scie
nceAcademy, Kyoto University
city and Japan In5 position of 5
There is one published under standard (JIS).

A typical publication is publication number JISG6226 (
"A" for explanation of JIS) and voice input method standards
Comparative 5tudy of Rom
anization Systems” (CCRI)’
There is. The latter document is the standard for Chinese input methods. 2
For an explanation of how to input Profesmlonal, see rYu, 'SomeNew Advancem.
ent In Hlgh 5peed Two -5t
rokeChinese Input System”
, Proceedings of 1987Inte
National Conference on
Chinese Infor-ms+tion
See Processimg, at 111 J. Other references that provide standard codes for various input methods include '''C, published by CCCII.
hineseCharacter Code Tran
@tation Table = (May 1987)
There is a translation board.

For those input methods applied to one or more possible ideograms, the system inverts a portion of the matrix of video terminal display cells for the display of those characters. There is a means used to select one of the characters. Preferably, they are part of the firmware along with the desired keys on the keyboard 14 that rapidly respond to the video terminal 10 to select the desired character.

The internal code of the selected ideogram is Video Terminal 1
The display cell matrix 0 is stored in the code 7a 44 at the adjacent position corresponding to the adjacent cell in the matrix. As mentioned above, the central processing unit 26 and the CRTC 34 have a timing Φ
It uses Ph11/Ph12 interleaving such that it controls half of the cycle and CRTC34 controls the other half. When controller 34 is on its turn, the first or low byte of the 2-byte ideographic internal code in code buffer 44 is passed to FF 52 on the 0th order clock cycle;
The second or high-order byte of the character code follows its associated low-order byte by entry into the armature line 48 where it is passed from the buffer 44 to the FF 52. The code appearing in MUX 56 and pattern memory 58 is the output of FFs 54 and 52. Similarly, the low and high bytes of the ideographic code arrive at pattern ROM 58 at approximately the same time. In other words, a complete 2-byte ideographic code can address a Chinese nosetan in pattern ROM 58.

Each ideographic pattern stored in pattern memory 58 constitutes a multi-line dot pattern code which constitutes a dot matrix or turn of two cells on the screen of video terminal IO. It is stored in Noreen Memory 58 and the 9th turn of 9 is Cell.
It depends on the size and the particular style or style to be displayed on the video Φ terminal 10. In this example, the dimensions of the two cells for the ideograms are 26° wide and 29° high. 2 columns and 5 rows are left blank for spaces, /# p
-Ideographic bits stored in memory 58
The pattern is 24x24.

Therefore, the output of pattern memory 58 for a five ideogram dot pattern is 24 parallel bits to represent one display line for each character. (Twenty-four such sets of parallel pits constitute each ideogram.) These bits are arranged in series in a 7”o GrammaBlue array.
The signal is shifted out to the logic register 62 and then sent to the shift register 60. Programmable play logic 62 receives character bits and attribute bits and provides a video output signal to video terminal 10.

Table ROM 30 contains multiple internal code representations for each ideogram; one internal code for Chinese is Tel.
-Code, Big-5, National 5
The system provides a means to select one of the internal codes for transmission to the host computer 12, including the standardCode, and the 5550 code. This is done as part of the firmware, with designated keys rapidly responding to video terminal 10 to select internal codes. But the key? - If there are a sufficient number of keys in the code 14, it is possible to permanently assign one or more keys the function of selecting an internal code. As previously mentioned, for certain ideograms, candidate characters may be represented in a portion of the video cell matrix (video terminal display). These characters are not sent to the host, but are simply stored in the appropriate locations in code pa, fa 44. However, once a single character is selected, CPU 26 fetches the selected internal code representation for that character from table ROM 30. Host computer 12 receives, stores, and transmits the internal code in a conventional manner.

3A-3N, 4A-4, 5A-5M, and 6A-6I show detailed circuit diagrams according to one form of the invention. 3A-3N (assembled according to FIG. 3 shown in conjunction with FIG. 3N) CPU 26, CRTC 34
, 3A, 3E, 3I showing the connections between the screen fist buffer 42 and the shift register 60 and their details.
and 3M show a plurality of DRAM memory devices 74 providing temporary storage of setan data (pattern data lines PDO-PD23. and DRAM address lines 74).
lines DAO to DA7). Each DRAM in this example has 4
464-10 DRAM chip. FIG. 3A shows a character turn router 82 transmitting character turns to a video terminal display.

Router 82 is a 74S195 chip in this embodiment. Figures 3E, 3I and 3M are pattern ROM58 (second
Shift registers 60a-60e are shown receiving pattern data from FIGS. 6A, 6B, 6D and 6B) and shifting it out serially via the QH section (pin 13). Shift registers 60m, 60b, 60c (Figures 3E and 3I) process pattern data for ideograms and output serial data from shift register 60c via the QHI (pin 13) line. shift register 6
0d and 60e (Figures 31 and 3M) process pattern data for Aljabet characters and shift register 60
Serial data is output from e to line QH2 (pin 13). The shift register 60 in this embodiment is 74HCT16.
6chi, pu.

FIG. 3B shows a program ROM chip 28 along with data lines Do-D7 and address lines AQ-A14.
6 and includes the system program, the preferred embodiment uses the 272561512 chip. Third
Figures F and 3J are Aljape.

A table ROM that stores characters and ideograms.

Obviously, if more storage space is needed, table ROM chips can be added; the table ROM of the preferred embodiment is 27256.
Use 1512 chips and pu.

FIG. 3C shows the CPU 26, which in this example is a 65C02 microprocessor chip. One feature of this invention is the microprocessor.

The chip is capable of processing 8-bit chips, ie, one byte of data at a time (data line DO-07). This is 16-bit.

It is possible to reduce the size and cost compared to small and larger chips. Other features include CMOS logic, which makes the chip more reliable and provides lower power consumption.
The first thing to do is to use a similar element.

Driver 40 is the data path 38, so driver 41
is provided for address path 72.

FIG. 3D shows a CRTC 34, which in this example is a 6845EA CRT controller, 7p.

Memory address lines MAO-MAII are used to address screen buffer 42.

Figure 3H shows address lines AO-A from CPU 26.
ll and address lines MO-Ml from CRTC34.
It includes a multiplexer (MUX) 84 for multiplexing 1.

In this example, it is 74HCT157 chips.

FIG. 3H also shows the code buffer 44 and attribute buffer 46, which are TC5563-10 chips;
Screen power address line S connected to
Addressed through AO~5A11. Data is input/output via the data port (ND7).

In Figure 3G, 3, driver 40 (Figure 3C) receives mother turn data via line PDO-PD23.
and provides parallel outputs on lines DO-D7 for transmitting character arm turn data to printer 76 (FIGS. 1 and 4H). A plurality of buffers 86 are shown. They are 74HCT245 chips in this example. 3rd G
The figure shows a timing circuit 102 that provides a timing signal RES to the CRTC 34 and CPU 26. Timing circuit 102 in the preferred embodiment is a 5E555 chip. Decoder 104 selects one of table ROMs 30. It can be a 74HCT138 chip.

Figure 3L shows the input/output (Ilo
) Indicates PAL88. The I10PAL 88 allows the CPU 26 to directly access the I10 device as if it were a memory device. Although the l10PAL88 is not shown in Figure 1, it is functionally connected to the CPU26 and various I1
0 device.

Figures 4A-4 show the input/output elements of the system, assembled as shown in FIG. Figure 4A shows the host
Adapter 70 is a 65SC51 illustrating an asynchronous communication interface adapter 70 that provides an interface for receiving data from and transmitting data to computer 12.
P-2 is fine.

FIG. 4B shows the system interface with host computer 12, where element J3 may be a conventional R8232 connector. Figure 4C shows the buffer/line driver 9
In this example, driver 96 may be a 74HCT244 chip, and driver 97
may be a 74HCT367 chip, and the latch 98 may be a 74H
A CT273 chip will suffice. FIG. 4E shows data path 38 and printer 7 that serially transmit data to printer 76.
6 (FIGS. 1 and 4H). FIG. 4G shows the node 90 (74LS374 chip) and FF99 (74HCT139 chip) between the data node 38 and the printer 76, which also includes, in this embodiment, the 74HCT138 chip.
Printer 7 is shown in Figure 4H, including MUXloo, which is a
6, element J4 may be a conventional R8232 connector.

FIG. 45 shows a multi-function interface adapter 36 that provides an interface for receiving keystroke data from encoder 22 of Key Date 14. Adapter 36 serves as a 65SC22P-3 parallel and parallel shift register.
It's chu, pu. Line PAO-PA7 and PBO-PB
7 is a bidirectional L/-).

Control and /4' turn data received by VIA 36 is sent via lines Do-D7 to auxiliary ACIA 70m and from there to printer 76. Fourth, the figure is 4
A key connected to the adapter 36 by a wire Zorag J5 indicates one hand 14 and the encoder 22, serial data is received from the encoder 22 via pin 4, and serial data is sent to the encoder 22 via pin 2. be done.

Figures 5A-5M show details of the character and attribute code pipeline 48,50 of the present invention, constructed as shown in Figure 5. FIG. 5A shows a path 80 consisting of lines M1-M8 showing a D-type FF 52 receiving data one byte at a time from code buffer 44 via lines CO-C7. transmits memory address data through driver 81 (Figure 5B) to perform read and write operations to various memory devices.

Here, the driver 81 may be 174HCT244CH, f, and FIG. 5B receives data from the FF52 and connects the line GO.
~A D-type FF54 outputting it via G7 is shown. F
The data appearing on outputs Q2-Q6 of F52 also appear on lines G11-Gl5.

Lines Gll-G15 are ignored for Aljabe and G characters, but are used as part of their height byte for ideographic characters. Three additional lines (G8-G10) are needed for the high order byte. However, for an ideographic display, one would be addressing a normally empty space between two adjacent display cells of the video terminal. The data pits on lines G8-GIO are used for that purpose, connecting bus 94 to line Gll.
~G15 (Figures 5B, 5F) before connecting to the input z-)G via the graphic PAL68b (Figure 5E)
Connected to o-G2.

FIG. 5C shows the video terminal IO along with the serial data input line VID (pin 3).

Figures 5D and 5H receive character internal codes from the Tsukuba line 48 and input them to the CRT via those input lines.
A multiplexer (MUX) receives internal codes from C34 and outputs them on lines PAO to PA19.
) indicates tick f56, which allows special characters or words stored in DRAM 74 to be accessed directly from CRTC 34. Lines PAO to PA7 are used for Aljabe and G character codes, and lines PAO to PA1
3 and PAI9 are used for the ideographic code, and lines PA14-PAI8 are used to specify the line number of each character (as one form of this invention, each character has a 24-dot pattern).

Figures 5E, 5F, and 5C show details of the attribute code pipeline 50, in which character code data is transferred one byte at a time from the attribute buffer 46 (Figures 1 and 3H) via lines Do to D7. are inserted into the pipeline 50 one by one. Series-connected D-type FF64°66 is 74HCT374
Ch, g are fine. The D-type FF 68a (Fig. 5F) is a part of the attribute control register 68 (Fig. 1), and its input /-)
The output signal from the D-type FF66 and the AND signal are connected to Do-D7.
Goo) 68d.

Graphic PAL 68b and timing PAL6
8a. Graphic PAL68b
.

Timing PAL 68e and AND gate 68d are part of attribute control logic 68 (FIG. 1). In this example, the graphic PAL 68 b is 16L8A
It is a high speed, ophthalmic 16-person powered AND-OR inverting input array. The Timing PAL 68c is a 16L8B octal 16-man powered and-or inverted dirt array. FIG. 5G shows an attribute register which receives attribute information from control 68 and inputs it to input port QHI.

A shift register 60 (FIG. 3E) is provided in each QH2.

3H, 3M)) receives serial ideographic code data and alphanumeric character code data. Video P
AL 62 sends a serial video signal (pin 5) to video terminal 10 (Figure 5C). This PAL62 is 2
It can be a 0L8E760 grammar play logic chip.

Figures 5I and 55 provide some additional control logic for this embodiment. FIG. 5I shows the memory PAL 106, which in this embodiment is a 20L8A high speed octal 20-man register start-and-or inverted dirt array. P.A.
L 106 is arranged between the CPU 26 and the program ROM 281 and table ROM 30. FIG. 55 shows a pattern P that may be a 20L8A high-speed octal 20-man-powered register start-and-or inversion gate array in this embodiment.
AL 108 is shown. PAL 108 is functionally CPU
26 and pattern memory ROM 58. 5th L.

Figure 5M shows multiplexer 92 transmitting data to DRAM 74 (Figures 1, 3A, 3E, 3I and 3M).

6A-6I show details of the nogturn memory 58, assembled as shown in FIG. Figures 6A and 6
In figure B, pattern ROM 58a, 58b may be 62304.
, 58c. Each chip is addressed via input port AO-A18 and output port AO-D7.
Output data in bytes. Figures 6D and 6E are additional pattern ROMs that can be used with the NogTurn ROMs 58a-58c to provide storage capacity for additional characters. Figures 6C and 6F show the pattern address lines and pattern data lines, respectively.

The invention is not limited to the embodiments described above, but is capable of many variations and similarities, in whole or in part, without departing from the gist of the invention.

[Brief explanation of drawings]

1 is a schematic diagram of a multilingual display system according to one form of the invention; FIG. 2 is a diagram of a keyboard forming part of the invention; FIG. Figures 3A-3N show selected parts of the system in Figure 1.
Figure 5M shows a selection of the system of Figure 1, and Figures 6A-6I show a selection of computers, 14 and 14 of the system of Figure 1.
...Key date, 16...Symbol -#-22...Encoder/, 26...CPU, 28...Program RO
M, 32... Video character generator, 36... Interface adapter, 44... Code noguffa, 4
6...Attribute buffer. Application agent Isao Maehara Tf1 3C TG R TG 3T') FTG-? '(G 'FTG-3F' FTfl-9, H FIG, 3K FIG, 3J FIG, 3L 1; 'Tfl-44 FTG, 4D FTfl-, iF FTfl-4, T TG 3R FIG, 5A FIG, 5C Ti' Tfl 8F FIG, 5J F'Tf1 6■ Procedural amendment (method) % formula % Display of case 1999 Patent No. 27!1916 Title of invention Universal it Rf Ispray system Person who makes amendment Relationship with case

Claims (5)

[Claims] (1) A keyboard including a plurality of symbol keys having an aljabet mode and an ideograph mode, and an attribute key specifying attributes of all or any one of the aljabet letters and ideograms, and a single byte interior representing the aljabet letters; a memory having a code representation, an attribute representing an ideographic character, and a two-byte internal code representation; a memory having an Aljabet character represented by the internal code from the memory in response to a keystroke of an Aljabet symbol; processing means for fetching the ideogram represented by the internal code from the memory in response to a keystroke, and fetching the attribute represented by the internal code from the memory in response to the attribute keystroke; a video character generator for generating a video display signal to the video terminal in response to an internal code representation and the internal code representation of the aljabet or the ideograph; displaying the aljabet character and the ideograph; video terminal display system. (2) the video character generator includes: a code buffer, each having a one-byte output, storing the internal code representation of the character; and an attribute buffer storing the internal code representation of the attribute; 2. The system of claim 1, including: - parallel character code and attribute code pipelines connecting the outputs of buffers and attribute buffers, respectively, to said video terminal. (3) A method for displaying Aljabet characters and ideograms on a video display terminal, the Aljabet mode and ideograms being such that Aljabet characters are represented by a single keystroke and ideograms are represented by one or more keystrokes. providing a keyboard with a plurality of symbol keys having a character mode; providing said keyboard with at least one attribute key specifying attributes of all or any one of said characters; selecting said mode; and selecting said mode for said ideogram; provide a plurality of input methods, and if an ideographic mode is selected, select one of said input methods, generate a first signal in response to each symbol keystroke, and generate a first signal in response to each attribute keystroke. a first signal generating a second signal and having a first internal code representation for each said Aljabet character, a second internal code representation for each said ideogram, and an attribute code representation for each said attribute; providing a memory; a. determining the alphabetic mode and the first signal by fetching from the first memory an alphabetic character represented by a single byte of the first predetermined internal code; or b. the ideographic mode (input method) and one or more of the first signals by fetching from the first memory one or more ideograms represented by two bytes of the second predetermined internal code; the second memory for fetching the attribute represented by the attribute internal code from the first memory;
a video display for displaying the Aljabet character or one or more of the ideograms, respectively, on the video terminal in response to the attribute internal code and the first or second internal code; A method for displaying Aljabet characters and ideograms, including steps of generating signals. 4. The method of claim 3, further comprising the steps of: (4) providing a plurality of second internal code representations for each said ideogram and selecting one of said second internal codes. 5. The method of claim 4, further comprising transmitting ideograms to the host computer of the selected second internal code representation.