JPS61213883A - Character data output unit - 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] [Summary] An initial program and a character generator (hereinafter referred to as C
The second storage means stores only the CG fonts necessary for initial display from the first storage means when the power is turned on. After loading the remaining CG fonts into the second storage means for initial display, initial display and subsequent character conversion processing can be performed quickly.

[Industrial application field]

The present invention relates to a character output device, such as a word processor, that has a display output or print output function, and particularly relates to an output device that can increase the speed of character conversion processing and reduce costs.

In recent years, with the advancement of office automation, devices equipped with displays (hereinafter referred to as CRTs) and printers such as personal computers and word processors have come into wide use.

These devices convert character codes into character patterns using C
G font is provided, and the converted characters are output to a CRT or printed out. There is a desire for a method to increase the conversion processing speed so that this output can be performed quickly.

[Conventional technology]

FIG. 3 is a block diagram illustrating a character output device. In the figure, l is the main control unit, initial program memory 6,
It also has a function of controlling each unit according to a program stored in the program memory 5 to convert input data and output data.

The human data memory 4 is composed of a RAM, and has an interface circuit 2. Alternatively, input data from the keyboard 3 is stored.

The program memory 5 stores operating programs for the device.

The initial program memory 6 is composed of a ROM, and the I P
A program L (Initial Program Load) is stored.

CO2 consists of ROM, Alphavent 5 numbers,
and kana characters are stored as fonts.

The CGG control unit 8 has a function of converting data sent from the input data memory 5 into character data using CO2.

The CRT control section 10 has a function of displaying character data sent from the CGG control section 8 on the CRT 9.

The printer control section 12 has a function of sending character data sent from the CGG control section 10 to the printer 11 for printing.

With such a configuration and function, when the device is powered on, initial display data is sent to the CG control unit 8 according to the IPL program in the initial program memory 6, converted to character data by CO2, and then controlled by the CRT. The data is sent to the unit 10 and displayed on the CRT 9, and becomes ready for connection with an external device.

Thus, the interface circuit 2. Alternatively, when data is input from the keyboard 3, it is stored in the data memory 4 according to the program in the program memory 5, and is further stored in the CGG control section 8.
The data is converted into character data by CO2, sent to the CRT control section 10, and displayed on the CRT 9.

When the data stored in the data memory 4 is to be printed out, the data is sent to the CGG control section 8, converted to character data by CO2, and sent to the printer control section 12, where it is sent to the printer 11.
is printed. Further, when the displayed characters are to be printed out, this is done in response to a print instruction from the keyboard 3.

[Problem that the invention seeks to solve]

According to the above-mentioned conventional method, CO2 is constituted by a ROM, which has the problem that the number of characters that can be stored (that is, the number of characters that can be converted) is limited, and that the conversion process to character data is slow.

[Means for solving problems]

The present invention includes a first storage means having an area for storing an initial program started when the power is turned on and an area for storing a character generator font; a power-support type second storage means loaded with the remaining fonts during a period of displaying data using the loaded font; This is a character data output device that performs character conversion, and thereby the above-mentioned problems can be solved.

[Effect]

According to the present invention, the power-support type second storage means includes the first storage means and the second storage means, and stores only the CG fonts necessary for initial display from the first storage means when the power is turned on. After the initial display is completed, the remaining CG fonts are loaded into the second storage means, and character conversion is performed using the CG fonts in the second storage means.
Not only can the initial display be performed quickly and the subsequent character conversion processing time can be shortened, but also the cost can be reduced because the CG 7 configured in the ROM can be deleted.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a block diagram showing an embodiment according to the present invention, and FIG. 2 is a flowchart of FIG. 1. The same reference numerals indicate the same objects throughout the figures.

In FIG. 1, the main control unit 1a has an initial program /C
G Memo IJ13. It also has a function of controlling each section according to a program stored in the program memory 5a to convert input data and output data.

The program memory 5a stores an operating program for the device.

The initial program/CG memory 13 is a ROM consisting of a storage area where an IPL program is stored and a storage area where CG fonts are stored.
It is a storage means for In the initial program, the CG fonts required for the initial display are first loaded into the copy CG memo, and after the initial display control is completed, that is, the initial display is performed using only the pattern data for the initial display. Includes a function to load the remaining CG fonts during this period. The CG font stores alphabets, numbers, and kana characters.

The copy CG memory 14 is composed of a RAM, and is a memory that stores the CG font sent from the initial program/CG memory 13, and is the second storage means.

The copy CG memory control unit 15 has a function of converting data sent from the input data memory 5 into character data by selecting a corresponding CG font from the copy CG memory 14.

Since it has such a configuration and function, its operation will be explained with reference to the flowchart in FIG.
CG fonts necessary for initial display are loaded into the copy CG memory 14 via the copy CG control unit 15 according to the IPL program.

■Then, initial program/CG memo From January 3, the initial display data is sent to the copy CG control unit 15, and the copy CG
It is converted into character data in the memory 13 and sent to the CRT control unit 10.
It is sent to the CRT 9 and displayed on the CRT 9, and becomes ready for connection with an external device. At this time, for example, a pattern indicating a connectable state is displayed on the CRT 9.

(2) During this period, the remaining CG fonts are loaded from the initial program/CG memory 13 into the copy CG memory 14 via the copy CG control section 15.

■Thus, the interface circuit 2. Alternatively, when data is input from the keyboard 3, it is stored in the data memory 4 according to the program in the program memory 5a, and further copied
The data is sent to the G control section 15, converted into character data by the copy CG 14, sent to the CRT control section 10, and displayed on the CRT 9.

In this way, the initial display can be displayed quickly, and later character conversion processing can also be performed at high speed. That is, the conversion processing speed can be increased by storing the initial program and CG in one ROM, and loading the CG into the RAM copy CG memory and using it for conversion. Memo January 4
Since it takes time to load the CG fonts into the CG memory 14, only the CG fonts necessary for initial display are loaded and displayed first, and then the remaining CG fonts are loaded into the copy CG memory 14.

Furthermore, since the ROM dedicated to CG can be deleted, costs can be reduced.

〔Effect of the invention〕

As explained above, according to the present invention, ■Initial display can be performed quickly.

■Character conversion processing time can be shortened.

(2) Since the CG configured in the ROM can be deleted, costs can be reduced.

There is an effect.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a flowchart in the middle of FIG. 1, and FIG. 3 is a block diagram illustrating a conventional method. In the figure, 1.1a is the main control unit, 2 is the interface circuit, and 3
is the keyboard, 4 is the data memory, 5.5a is the program memory, 6 is the initial program memory, 7 is the CG, 8 is the CG control unit, 9 is the CRT,
10 is a CRT control unit, 11 is a printer,
12 is a printer control unit, 13 is an initial program/CG memory, 14 is a copy CG memory, and 15 is a copy CG memory control unit. Doumiki N'J Mefrodz 7 Senai 3 Kuni

Claims (1)

[Scope of Claims] A device for outputting character data obtained by converting an input character code using a character generator font, the device comprising: an area for storing an initial program to be started when power is turned on; and an area for storing a character generator font. 1 storage means; fonts necessary for initial display among the character generator fonts are loaded from the first storage means by the initial program, and the remaining fonts are loaded during a period of displaying data with the loaded fonts; A character data output device, comprising: a power-support type second storage means, wherein the character conversion is performed using a character generator font loaded into the second storage means.