JPS5860789A - Pattern magnification system - 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 pattern enlarging method for enlarging a binary image pattern by a factor of two in both the vertical and horizontal directions, and particularly to a method suitable for enlarging character stamps.

Conventionally, when enlarging a binary image twice in both the vertical and horizontal directions, simple zoom enlarging has often been used because of the ease of configuration of the enlarging device. When enlarged using the simple zoom enlargement method, the diagonal lines are not smooth and the text becomes hard to read.

On the other hand, a method has been proposed in which all the buttons are read into a working memory, enlarged in the working memory, and smoothed to obtain a desirable button, but this is not practical because the device for enlarging is complex and the processing speed is low. It wasn't something.

The present invention improves simple zoom magnification and corrects it using simple logic to solve the above-mentioned drawback of hard-to-read slams. This invention provides a method for an expansion mechanism that is easy to add to a generator.

The present invention will now be described in detail with reference to the drawings showing embodiments of the invention.

Referring to FIG. 1, the first embodiment of the present invention implements the present system using a microprocessor program. In this embodiment, microprocessor 1. System bus 2. Main memo! j3,9 count register 4.
Code register 5. It includes a character generator 6, a button register 7, and a printing device 8.

To print a character without enlarging it, set the character code in the code register 5, set the line number in the line count register 4, and send the WtM miso data in the button register 7 to the printing device 8.

When enlarging and printing, the microprocessor performs the processing shown in FIGS. 2(a) and 2(b).

A good enlarged button can be printed in two stages as shown in FIG.

Referring to FIG. 3, the second embodiment of the present invention realizes character enlargement using hardware according to the method of the present invention. In this embodiment, code register 11. Line counter 12. Character generator 13. Bang register 14. A button register 15, a programmable logic array 16 for obtaining an enlarged pattern by inputting the outputs of the button registers 14 and 15, and an output register 17 for holding the output of the programmable logic array 16. Output register 18s and register 12+14ψ15+sequential circuit 19 that controls the operation order to hold the output of the button register 14 and obtain a button that does not expand
including.

The code of the character to be expanded is set in the code register 11, and the value of the line to be read is doubled in the line count register 12 if it is not to be expanded, and set as it is if it is to be expanded. If not enlarged, the specified line of the set character code is sent to the output register 18 via the button register 14. In the case of the enlargement mode, the character generator 13 is read with the value excluding the lower one bit of the set line counter, and the result is obtained in the Rabatan register 14. If the line counter set next is an even number, line count register 1
2 is subtracted by 1 and the character generator 13 is read out again to obtain the result in the button register 15. The contents of the button registers 14 and 15 are referred to and the calculation according to the present method is performed (here, a programmable logic array is used), and the result is obtained in the output register 17. When one row has 16 bits, the programmable logic array has the configuration shown in FIG. 3(b). If the line count number is an odd number, the line count register 12 is incremented by 1, the character generator 13 is read out, and the result is sent to the button register 15. The same processing as when the line count is an even number is then performed. In the sequential time %19, when an external activation is applied, a 1 signal is generated in the order of the strobe of the button register 14, the clock of the line count register, and the strobe of the button register 15.

Referring to FIG. 4, the third embodiment of the present invention is designed to be able to obtain the desired slam faster than the second embodiment. This embodiment includes a code register 21 that stores character codes, a character generator A 22 that records character stamps. Character generator B23 e Selector 24*25 for selecting two outputs from the character generators 22 and 23 that should be subjected to a logical operation between the bangs using the wooden sword method. Output register 27.#output register 27.#output register 27.#output register 27.#output register 27.#output register 27.#output register 27.#output register 27.#output register 27.#output register 27.#output register 27.#output register 27.#output register 27. An output register 28 for holding the output of the selector 24. A line count register 29 for specifying the line number of the desired button; a combinational logic circuit 30 for giving a line number to the character generator based on the count value of the line count register 29 and further controlling the selectors 24 and 25;
including. The character stamps are divided and stored in the character generator as shown in Fig. 5(a). Further, the combinational logic circuit is assumed to be the logic circuit shown in FIG. 5(b). With this configuration, patterns that are not expanded are stored in the output register 27, and patterns that are expanded are stored in the output register 28.

As explained above, the present invention has the effect that an enlarged pattern that is easy to fill can be obtained with a simple device configuration by performing the logical operation prescribed by this principle when obtaining a double enlarged pattern.

[Brief explanation of drawings]

Figure 8#41 is a block diagram of the first embodiment of the present invention. FIGS. 2(a) and 2(b) are flowcharts of the microprocessor program for the first embodiment, and FIG. 2(C) is a diagram showing a method of printing an enlarged pattern in two stages. , FIG. 3CB) is a block diagram of the second embodiment of the present invention, FIG. 3(b) is the contents of a programmable logic array that realizes operations between patterns, and FIG. 4 is a block diagram of the third embodiment of the invention. FIG. 5(a) is a block diagram of the example, and FIG. 5(a) is a diagram showing a method of storing patterns in the character generator in the third embodiment. FIG. 5(b) is a diagram showing the contents of the combinational logic circuit of the third embodiment. FIG. F Leap No. 2121 (J) Fig. 2 (C) Slam recode
Nobin ty > IT4-75 4th (121 5th Cη ((2

Claims (1)

[Scope of Claims] In an apparatus for displaying a binary image pattern of N dots (N dots) and N dots (N dots) by storing a binary image pattern in one row (N dots) and M rows of button memories, The matrix of t-Nxλ1 is 12Nx2M after expansion.
matrix B, black is logical value l. White is fitted with a logical value of 0, and the extra number 1m that changes from 1 to n is the integer % b (+1nbn+
ObN+1tm bntM+1 are all O1+ is logical sum % If e represents logical product, B sum rMm=(bn+L+m-bn+llll+1)+b
n*mb2nt! nr-1= (bn+1pmabn
rm1)+bJ1+mBxn-s+zm-(b
n-s tm” bnrrr)+s )+ bn, mB
z n * + 1m-5= (bn-t em ”
bn * rrr-s ) A batan expansion method characterized by obtaining B as in 10 bits tm.