JPS59116782A - Generator for character signal or 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 The present invention relates to a character signal generating device, and more particularly to a character signal generating device for a printing device, display device, etc. (hereinafter referred to as a printing device, etc.) used as an output device of an information processing system, etc. It is.

That is, the present invention can be applied not only to characters but also to image and graphic data generators, and not only to printing devices but also to display devices and output devices.

As is well known, in printing devices used in information processing systems, etc., especially Japanese printing devices, characters and symbols □
etc., in the form of a P dot matrix (hereinafter referred to as nXm dot pattern) such as 18X18 or 24X24, and decompose this into m horizontal lines or m dora) n vertical lines each consisting of n dots. sequentially using a printing device, etc. (in the case of a display device, a display device using ORT, etc.)
Characters and symbols completed using pnXm's dot pattern are supplied to a printing device (hereinafter referred to as a printing device, etc.), and sequentially prints each horizontal line or vertical line (in the case of a display device, it is displayed, hereinafter referred to as printing). Many of them use a method of printing etc.

Because of the difference in information processing speed and printing device processing speed, such printing devices are equipped with so-called dot pattern storage devices that store dot patterns of the types of characters, symbols, etc. required for one page or one line. It is configured to read out a predetermined dot pattern according to the specified character code and supply it to a printing device or the like.

Figure 1 shows an example of the configuration of this type of printing device, etc., in which a character turn signal a and a character size designation signal are sent from a central processing unit (not shown) to a control device 1. Then, a part or all of the character pattern signal a is left unchanged or enlarged to the size specified by the character size designation signal S, and the character /J? The turn signal C is sent to the storage device 2 to store, for example, one page, and the data stored in the storage device 2 is sequentially read out and printed by the printing device 3. Note that reference numeral 4 denotes a subsequent device for transmitting the contents of the storage device 2 to the central processing unit.

To explain in more detail, for example, when printing character strings such as ``i'', ``guchi'', ``ha'', and ``2'' as shown in Figure 2 (
(The numbers indicate the dot configuration). Regarding the x2in, data as shown in FIG. 3 is sent to the control device 1 from the central processing unit.

In this example, one character is represented by two words consisting of 16 bits to represent the size of the character.

Then, only the character pattern signal a in these data is 1
The information is sequentially stored in the memory device 2 having a word 16-pit structure as shown in FIG. 4, and then read out by the printing device 3 and printed.

Therefore, when considering composing a horizontal line with the character C using a program in this state, in the conventional method, it is troublesome to check the memory, so compositing after writing to the storage device 2 is troublesome.

In other words, the character C on the × line is 43, counting from the beginning.
It starts from a dot and stops at 66 dots. As shown in Figure 4, the letter C starts at the 5th bit of the 3rd word and stops at the E bit of the 5th word P, so the program needs to do the following. There is.

(1) Read the third word by the reading device 4, OR the data with "003F" (6), and write it into the third word.

(2) Read the fourth word and write “FFFF” to the data.
-OR H and write to the 4th word.

(3) Read the first 5 words and set the data to “000”.
OR 0'(H) and write to the 5th word.

That is, according to the conventional method, prior to composition, it is necessary to memorize (1) address calculation, (2) processing of irregular bits, and (2) - how characters of different sizes are included in the middle character.

Furthermore, in the conventional device, when enlarging and printing the turn signal between characters, the control device 1 uses the storage device 2 to enlarge the turn signal.
More capacity is required than when no expansion is done.

Therefore, the present invention provides a storage device [2] for storing the character A turn signal a and the character size signal S on the input side of the control device 10, in place of providing a buffer storage device 2 on the output side of the control device 1.
5 reduces the storage capacity for enlarged printing, and when implementing the present invention, the storage device is shared with the main storage device of the central processing unit, making it easier to synthesize characters using siprograms. This is what I did.

FIG. 5 shows an example of the implementation of the present invention, in which 1 mainly comprises a shift register, a counter, etc., and a character pattern signal a and a character size signal are used to convey the character pattern necessary for the printing device. A control device that creates a signal, 3 is an impact type,
It is a non-impact dot printer.

Reference numeral 5 denotes a storage device provided upstream of the control device 1, and in the case of the above example, it is configured to store, for example, one page of data in the form shown in FIG. The data is sequentially read out at a speed commensurate with the printing speed of the dot printer 3, and a character pattern signal C having a size determined by the size signal S is sent out.

An example of the relationship between the character pattern signal and the character size at this time is shown in Table 1.

Table 1: The enlarged characters and o-turns generated by the control device 1 are printed by the dot printer 3.

Therefore, when comparing the required storage capacity of the storage device 2 of the conventional device without character enlargement with the required storage capacity of the storage device 5 of the device of the present invention, it is clear from comparing FIGS. 4 and 6. , the storage capacity is larger in the case of the method of the present invention, but in case of expansion, when using the conventional method, the storage device 2 has to store the bits of the expanded character pattern signal, which reduces the storage capacity. It has to be made bigger.

However, according to the method of the present invention, the character nomi turn signal a
Since the data consisting of font and character size signals can be stored in an orderly manner as shown in Figure 6, the storage device 5 used in place of the storage device 2 can have a small storage capacity. At the same time, it is easy to compose data after writing to the storage device 5, and since the written data and the bladder output data are the same, it is easy to check the memory. There is.

Furthermore, when implementing this, if the system of the character signal generation device is configured as shown in FIG.
Since the data input to the memory device 5 and the data output by the reading device 6 are the same, the data input to the memory device 5 of the device of the present invention shown in FIG.
The reading device 6 can use a part of the main storage device 9 as is.

Can be used as a replacement.

The system shown in FIG.
When a character code is given to the character pattern generator 8 (Pttonozoturn storage device) through 0, the character pattern generator 8 generates a character pattern, which is sent to the central processing unit 7 through the pass line 10, and further For example, one page's worth of character number turn signals a and character size signals are stored in the main storage device 9 via a node line 10.

These signals are read out by the control device 1 at a speed commensurate with the speed of the printing device 3, are calculated, become a character pattern signal C, and are sent to the printing device 3. Print or display the characters.

By adopting the method of the present invention as described above, the main storage device 9
This means that a part of the main memory 9 of the central processing unit 7 can be used as is, but this means that when attempting to synthesize print data such as characters and characters with the apparatus of the present invention, various types of data are stored in the main memory 9 of the central processing unit 7 Being able to use a variety of instructions as is means that programs can be easily and quickly executed.

However, in the case of the conventional device shown in FIG. 1, the system configuration is as shown in FIG. Since it is not possible to obtain the same effect as when applying the present invention, there is a significant difference in practical use.

[Brief explanation of the drawings] Fig. 1 is a block diagram of a conventional device, Fig. 2 is an explanatory diagram showing the dot structure of an example of a character to be printed, and Fig. 3 is a state of data written to the control device of the conventional device. FIG. 4 is a diagram showing the state of data written to the storage device of a conventional device. FIG. 5 is a block diagram of an embodiment of the present invention.
7 is a block diagram of a computer control system to which the present invention is applied, and FIG. 8 is a block diagram of a computer control system using a conventional device. be. 1... Control device, 3... Printing device, 5... Storage device, 6... Reading device.

Claims (1)

[Claims] A printing device is directly connected to the rear stage of the control device which receives the character pattern signal a and the character size signal S as input and creates a character nozo turn signal C of different size. 1. An apparatus for generating character signals, etc., characterized in that a storage device is provided for storing a predetermined amount of signals having a magnitude of .