JPS58215690A - Magnified display of character of the like - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for enlarging and displaying characters, etc. on a CRT screen.

[Technical background of the invention and its problems]

In recent years, there has been remarkable progress in devices that handle characters, such as Japanese word processors. In particular, characters include kanji, alphabento, codes, symbols, etc., and are hereinafter referred to as characters.

For Kakaname devices, characters (hereinafter referred to as external characters) other than those previously registered in the device (hereinafter referred to as internal characters)
, it is necessary to register it in a new order for character processing. The internal character modification type external character registration method is known as a method for registering external characters. Can be done accurately. However, in the past, there were many methods suitable for displaying enlarged characters, and there was a demand for an accurate and reliable display method.

[Purpose of the invention]

Therefore, one object of the present invention is to provide a method that can enlarge and display characters in order to embody the internal character modification type external character registration system.

[Summary of the invention]

In order to achieve the above object, one enlarged display method of the present invention includes:
When seven sentences to be enlarged are specified, the corresponding character pattern in dot units consisting of an mxn dot matrix is read from the character pattern memory, and this character pattern is converted into a character code of any size for /characters. It is characterized in that one specified character is created and displayed by repeating the operation of converting and writing to a rewritable memory mxn times.

That is, to summarize, character pattern data in units of dots is converted into character codes in which the unit is a character pattern of mxn dots. Specifically, for example, the character pattern of Kodabit data is made into a character pattern of 2t/character code.

〔Effect of the invention〕

According to the present invention having such a configuration, characters can be enlarged and displayed more specifically and reliably.

Furthermore, it becomes easier to create special characters other than internal characters that you want to newly register, that is, external characters.

[Embodiments of the invention]

Hereinafter, the present invention will be described in detail based on illustrated embodiments. First, FIG. 1 shows an example in which seven characters are enlarged and displayed on the 0flT screen according to the present invention.

The seven characters / to be displayed are the characters "Kan" composed of an Ill x 211 dot matrix, which are enlarged and displayed on the 0FtT screen S. 0FtT
The screen date is divided into squares of moss x - letters, and each square λ consists of 211 x u'4 dots, so
Therefore, the entire ORT screen S can be expressed in dots as a j7J x j7J dot matrix. 3 to ♂ are divided into three blocks for convenience of the ORT screen screen, and each block is divided into r characters in size of normal characters (that is, characters in units of dots). indicates the cursor used during editing and proofreading.

Next, FIG. 2 shows the main parts of a system for carrying out the enlarged display method according to the present invention. As an example of this system, the following description assumes a keyboard input type word processor.

In FIG. 2, when an instruction is given from a keyboard (not shown) to register an external character by specifying an internal character, the instruction signal is sent to a central processing unit (hereinafter referred to as CPU) through a data bus 10.
Sent to Ke.

OPU, 2<+4, decodes the indicated signal and generates the corresponding character code. This character code is data bus 1
0, is given to the internal character pattern memory /4/ via the bidirectional buffer /, 2, and accesses the internal character pattern memory /4/. Furthermore, at the same time as the character code is generated, the cPU2tI outputs a selection signal // to switch the data transfer direction of the bidirectional buffer 7.2, and also outputs an inhibition signal /Af to perform parallel/serial (hereinafter referred to as p/s) conversion. Vessel/7
Prohibits the operation of

As a result of being accessed by the character code from the internal character pattern memo 17/4Z CPU and 2q, the corresponding character pattern data (244 bits) is generated. The character pattern data is stored in advance as internal characters in the internal character pattern memory. The generated character pattern data is sent to the CPU processor via the data bus (bit width) /9 and buffer /left.

OP U and Fl decode this character pattern data,
Determines whether the cough data is filled/blacked out in bit units. Based on the determination, it is converted into a character code of /character ()'+X2'l dots), which is character pattern data in bit units. The converted character code is sent to the data bus /θ again, but at this time the OPU 24' inverts the selection signal lif to reverse the transfer direction of the bidirectional buffer /2. Also, C! :P U 2'l outputs the screen address to be enlarged and displayed to the address bus 2/.

This screen address is given to the refresh code memory (FICM)/3 via the address bus/, and
/,? The above character code is written according to the screen address.

This completes the character code processing for one square on the CRT screen S (11.g+).

In the same manner, the above operation is repeated for each evaluation square, that is, the character pattern data of 211x cogdots is converted into 24' It will be done. This All x, 2
7 to be enlarged and displayed after writing the 17-character code
The process of enlarging and displaying the characters "Kan" on the CRT screen is completed.

Next, it gives a permission signal to the 0PUJ'ViORT controller J, cancels the prohibition signal to the p/s converter/7, and gives the display r "OK" to the CRT monitor/g.

When the CFtT controller 20 starts operating, the FTC
Send the screen address for M/3 to FtCM/J via the address bus here to access it. This access allows ECM/,? The character code data stored in is read out. This take is a turn memory/q
becomes the address of , and accesses the internal character nok turn memory/ke. As a result, internal character pattern memory/lI
From there, 2q bit character pattern data is read out and sent to the CFtT monitor/8 via 77 p/s converters. Now, the character pattern group is enlarged and displayed on the 0FIT screen S.

In other words, as shown in Fig. 7, one character of 2 × H dots / 1 kanji / dot is divided into 7 squares (, 2 (l)
x , 2<Z dot), it can be easily understood that it has been expanded to 2.

As is well known, in addition to enlarged display of characters, coordinates can also be displayed simultaneously on the CRT screen in order to facilitate editing and proofreading.

<Modified example> The above explanation is for internal character pattern memo IJ/
We have described an example of reading and enlarging internal characters stored in lI, but characters registered as external characters (i.e. external characters)
It is also possible to enlarge the display.

In that case, by using the external character pattern memory 23 instead of the internal character pattern memo IJ/4, it is possible to enlarge and display the same operation as described above, so the explanation will be omitted.

In the explanation for Ushida 1 and above, the size of the character pattern is 24
Although it is expressed as an '

Also, C! The characters on the FT screen S screen are assigned with truncated or plain codes, but you can select and use these KJJ or freely select and assign λ or more of other internal character codes. Good too.

In addition, although the above embodiment has been described using a keyboard input type word processor as an example, the present invention is not limited to this; It can also be applied to computers, personal computers, etc.

Thus, according to the present invention, it is possible to enlarge and display seven characters on a CRT screen, and it is also possible to process all characters, regardless of whether they are internal or external characters.

You can edit and even create new characters etc. and publish 5'9L foreign characters.

[Brief explanation of the drawing]

Figure 1 shows the 7 characters V-kan that should be displayed and this is 0FIT.
FIG. 2 is an explanatory drawing showing an aspect of enlarged display according to the present invention on a screen. C.Character "Kan" to be enlarged 1.2.7 squares of 017 screen, /3. Refresh code memory (Rc
M), /lt...internal character pattern memory,,
1g. ORT monitor, 20...CRT controller (OF
tTO) , , 2.3...Gaiji character pattern memo I
J, ,), 4'...Central processing unit (CPU).

Claims (1)

[Claims] Based on the designation of seven characters to be displayed in an enlarged manner, a corresponding character pattern in dot units consisting of an mxn dot matrix is read from the character pattern memory, and the character pattern in dot units is converted into a character of any size for one character. A method for enlarging and displaying characters, etc., characterized in that the operation of converting the characters into codes and writing them into a rewritable memory is repeated mxn times to provide the specified seven characters as character codes to a display device.