JPS6220473A - Character output control system - Google Patents

Abstract

PURPOSE:To output characters accurately by calculating each origin with spe cific picture element density when a document similar to a document whose characters are outputted by a device having some picture element density by a device having different picture element density. CONSTITUTION:When the document which is outputted by the device A having certain picture element density is outputted by the device B having different picture density, the origin (X0, Y0) of a document output area and the origin (X2, Y2) of a character interface are represented with the picture element density of the device B and the origin (X1, Y1) of a character body face are represented with the picture element density of the device A; when the longitudinal and lateral rate of picture element density between the devices A and B are denoted as alpha and beta, the output position (X, Y) of the character interface is calculated according to an output form by conversion based upon equations I and II to output characters. Consequently, the output formats of a printer, etc., and FAX, etc., are made coincident.

Description

[Detailed Description of the Invention] [Summary] When outputting a document similar to a document that has been output in characters with a device (A) with a certain pixel density using a device (B) with a different pixel density, the origin of the document output area ( Xo.

) and the origin of the letter face (x2゜Y
7) is expressed by the pixel density of device (B), the origin of the character body face (XL, 'A) is expressed by the pixel density of device (A), and the pixel density ratio of device (A) and device (B) is A character output control method is shown in which the output position (X, Y) of a character letter face is determined by converting it using a predetermined formula according to an output format, where the vertical and horizontal directions are α and β, respectively.

[Industrial application field]

The present invention relates to a character output control method that makes it possible to obtain the same output result as when outputting character data created for a laser printer or the like to a facsimile or the like having a different output format. .

[Conventional technology]

There is a desire to send the same data that a computer outputs to a printer to a facsimile (FAX) and obtain output results similar to those output by a printer.

FIG. 2 shows a block diagram for performing the above. Character data is output from the computer 1 to a printer (laser printer) 4 through a channel 2 and a control device 3. On the other hand, FA,
Character data is output at 8.

Since the FAX only has the function of outputting black and white dot patterns, the CFC shown in FIG. 2 is used to convert characters into dot patterns.

FIG. 3 shows an example of output from the laser printer 4.

The laser printer 4 prints characters in a dot pattern within the document output area shown in FIG. 3 at a pixel density of 240 dots/inch. The document output area is 1848 dots horizontally in the center of the paper (
7, finch) and 2640 vertical dots (11 inches).

Figure 4 is an enlarged part of the character area in Figure 3, and is 6L.
This is an example of outputting characters of 8 Cpi and 10 Cpi with the line spacing of PI (40 dots). 30x for 3cpi characters
A 28x28 dot character letter face is placed in the position shown in the 40 dot character body face, and a 10
In the case of a cpi character, a 16x16 dot letterface character is placed in the position shown in the figure within a 24x40 dot body face.

[Problem that the invention seeks to solve]

If you try to output the same output as the output example in FIG. 3 to a FAX, the following problems will occur.

(al pixel density is horizontal (main scan) 8 dots)/n, vertical (
Sub-scanning) 240X of laser printer at 7.7 dosoto/1
240 dots/inch, and the aspect ratio is different.

(b) If a dot pattern corresponding to FIG. 3 is created and thinned out at the above pixel density ratio, the character pattern will be destroyed.

Because of this problem, in the past, printers and faxes did not match their output formats.

[Means for solving problems]

In the present invention, when outputting a document similar to a document whose text was output by a device (A) with a certain pixel density using a device (B) with a different pixel density, the origin of the document output area <Xo, Yo)
and the origin of the character letterface (X2, Yv
) is expressed by the pixel density of the device (B), the origin of the character body face (Oh, Yl) is expressed by the pixel density of the device (A), and the pixel density ratio of the device (A) and device (B) is expressed in the vertical and horizontal directions. When α and β are set, the output device (X, Y) of the character letter face is set according to the output format, or [Function] According to the present invention, a document similar to the document outputted to a printer etc. can be outputted to a FAX etc. Then, the address of the document origin < ) is expressed in a space of 240x240 dots/in, etc., and the output position for each character (X.

Y) is determined by the above formula (1) or formula (2).

By doing so, it becomes possible to match the output formats of a printer, etc. and a FAX, etc.

〔Example〕

FIG. 1 is a diagram showing the configuration of a facsimile connection device (CFC) according to an embodiment of the present invention.

In the figure, 6 is a facsimile connection device (CFC), 7 is a public network, 8 is a FAX, 10 is a computer, 11 is a microprocessor (MPU), 12 is a computer interface,
13 is a FAX interface, 14 is a memory, 15 is a character pattern generator, 16 is an image memory controller, 17 is a compressor, and 18 is an image memory. C.F.
C6 is controlled by MPU (microprocessor) 11.

Character data from the computer 10 passes through the computer interface 12 and is stored in the memory 14 of the CFC 6.

The image memory (IM) 18 stores the dot pattern data of the document to be output to the FAX 8, and when outputting an A4 paper size document, it is
This is a bitmap memory consisting of dots x 2286 vertical dots.

FIG. 5 shows the configuration of the image memory.

The image memory 18 is an image memory controller (I
Access is controlled by MC) 16.

FIG. 6 shows the configuration of the IMC.

The IMC controls access while scanning a rectangular area on the image memory in the horizontal direction (X direction) as shown in FIG.

That is, XAR20 and YAR21 are address registers that address dot positions on the image memory.
Every time you access 1 dot (1 bit), XAR20 increases +
1 will be given.

XARR22 is a register used to return to the left end position one line below when the right end is reached while horizontally scanning a rectangular area.

XDOT23 is a horizontal dot counter in a rectangular area, and when XDOT23 counts down to 0,
XARR22-XAR20, YAR21+1 and XDO
TR24-XDOT23°YDOT25-1 is performed.

YDOT25 is a vertical dot counter, and when this counter reaches O, access to the rectangular area ends.

The character pattern generator 15 is composed of a memory that stores character patterns such as Chinese characters in the form of dots, and when one character code is given, the dot pattern of the corresponding character is outputted and written in the character position of the image memory.

The compressor 17 is a device that compresses and encodes the contents of the image memory 18 using the MH/MR method.

Image memory access during compression processing is controlled by the IMC 16, and the image memory body shown in FIG. 5 is accessed as one rectangular area.

This is read out one dot at a time in the X direction starting from the upper end row (YAR=O), and when the first row is completed, the second row is successively read out in the X direction, and then sequentially read out in the Y direction.

The data compressed and encoded by the compressor 17 is stored in the memory 14.
stored above.

The compressed data stored on the memory 14 is output to the FAX (G3 FAX) 8 through the FAX interface 13.

In order to output a document similar to the printer output shown in FIGS. 3 and 4 to a FAX in the above CFC, the following control is performed. Note that the explanation will be given for the case of outputting in portrait format on A4 paper.

■ The character output area of the printer is 1848x2 as mentioned above.
Since the pixel density of the FAX is 8 x 7.7 dots/amount 1, the corresponding printing area on the FAX is 1565 (horizontal) x 2151 (vertical) dots. The output paper size for A4 fax is 1728x
If you bring this printing area to the center of the paper, it will be 2286 dosoto (Xo.

The value of Yo) is the dot position of (82, 68).

FIG. 8 shows the positional relationship when the print area is placed on the image memory.

■ When the character output position on the printer (the lower left edge position of the character body face) is (Xl, Yi), the character output position on the image memory is also (XI, Yl).
Take it. ((XIYt) takes the upper left end point of the character output area as its origin.) (XiYl) uses the position address in the printer as it is, so it is an address in a pixel density space of 240 dots/inch.

■Character output position in image memory (Xl.

Yx ) indicates the upper left end point of the character letter face when the character output position (X, , Y, ) is the origin.

(XZ, YZ) is (direct) at the pixel density of the image memory space (8 x 7.7 do soto/1 layer).

FIG. 9 shows character output positions on the image memory corresponding to the character output position relationship of the printer shown in FIG. 4.

■ 240 dots/inch = 9.4488 dat/tsuru, 240 dots/inch and 8 x 7.7 dots/
Assuming the ratio between the dragons, the character letterface output position (X, Y) in the image memory can be determined as.

In addition, in the case of the horizontally long output format shown in FIG. 10, it can be obtained as follows.

Like this (X,, Yo), (Xl, Yx)
is expressed as a dot address of an 8×7.7 dot Zfl system image memory, and (Xi, YL) is expressed as 240×
Expression using the 140 dot/inch system provides the following advantages.

■ Characters and lines can be incremented using integers, increasing the accuracy of character output positions.

■ The fact that the pixel density of FAX is 8 x 7.7 pixels/1 square, which is different in the vertical and horizontal directions, can be covered by only the correction of (X4, YL), making control easier.

〔Effect of the invention〕

According to the present invention, when outputting characters similar to those of a document outputted by another device that handles data with different pixel densities, it is possible to output characters accurately without deteriorating the image quality. The effects of this are significant.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the configuration of a facsimile connection device according to an embodiment of the present invention, FIG. 2 is a diagram showing the output format of character data, FIG. 3 is a diagram showing an example of printer output, and FIG. 4 is a diagram showing the character data output format. FIG. 5 is a diagram showing the configuration of the image memory, FIG. 6 is a diagram showing the configuration of the image memory controller, FIG. 7 is a diagram explaining scanning of the image memory, FIG. 9 is a diagram showing the positional relationship between the flick and the image memory, FIG. 9 is a diagram showing the character output position on the image memory, and FIG. 10 is a diagram showing the output format in the case of landscape orientation. In FIG. 1, 11 is a microprocessor, 14 is a memory, 15 is a character pattern generator, 16 is an image memory controller, 17 is a compressor, and 18 is an image memory. L + - 11 - - - - - - - - - - - - - 11 11 - - - Composition of 1 real planer 441 facsimile of abundance 1 Akatsuki K ( capital ) by Ipponmi B month Figure 1 shows the output of the character te 2 while Figure 2 shows the output of 4 da 11 while Figure 3 shows the part of the character opposite. Figure 4 shows the configuration of the image memory. Figure 5 shows the configuration of the image memory.
Fig. 7: Illustrating and closing the memory Fig. 8: Fig. 8

Claims (1)

[Scope of Claims] Image data comprising an image memory and an image memory controller that creates an access address to the image memory, and configured to write data to the image memory under the control of the image memory controller. When a processing device outputs a document similar to a document that has been output as characters by another device that handles data with a pixel density different from that of the image data processing device, the origin of the character output area of the image memory (X_0, Y_
0) and the origin of the character letterface (X_2, Y_2
) is expressed by the pixel density of the image data processing device concerned, the origin of the character body face (X_1, Y_1) is expressed by the pixel density of the other device mentioned above, and the ratio of the pixel density of the other device mentioned above and the image data processing device concerned. When the vertical and horizontal directions are respectively α and β, the output position (X, Y) of the character letter face on the image memory to be passed to the image memory controller is determined by formula (1) ▲ mathematical formula, chemical formula, table, etc. There is ▼ or formula (2) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ A character output control method characterized by calculating.