JPS6338987A - Character generator - Google Patents

Abstract

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

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a character generation device that can increase the number of character patterns without increasing the number of fonts by making it possible to use a part of the area of the character pattern. Regarding.

[Conventional technology]

As a conventional character generating device, for example, a character pattern corresponding to a character code is generated from a foreground ROM, the character pattern is stored in an image memory, and when the storage of character patterns in the image memory reaches a predetermined amount. Some devices are designed to output an image signal to a recording section.

According to this character generator, for example, by connecting to an external host computer and receiving a character code from it, a predetermined image record can be obtained at a terminal, such as a workstation.

[Problem that the invention seeks to solve]

However, with conventional character generators, due to the diversity of image recording modes, it is increasingly required to change the size, pattern, etc. of even a single character. Since the number of fonts stored in the ROM must be increased, there is an inconvenience that costs are increased.

[Means for solving problems]

The present invention has been made in view of the above, and provides a character generation device that can select and use a pattern in a specified area of a character pattern in order to increase the number of character patterns while suppressing cost amplification. It is something to do.

Hereinafter, the character generating device of the present invention will be explained in detail.

〔Example〕

FIG. 1 shows an embodiment of the present invention, which includes an image signal generation device 1 (a network may be configured by a LAN) that inputs a character code from an external device such as a personal computer and outputs an image signal, and A recording section 2 receives image signals, print commands, etc. from the signal generator 1 and prints them on the recording paper 5, and also provides a clock signal, a line synchronization signal, a status signal, etc. to the image signal generator 1, and an image signal generating bag π
1. It has a power supply circuit 3 for supplying power to the recording section 2 and the like, and a display panel 4 for blink operation.

FIG. 2 shows the image signal generator 1, which receives a character code from an external personal computer, for example, R3232.
An interface unit 11 that receives data according to the C standard, a control unit 12 that performs system control, a character pattern ROM 13 that stores character patterns and pixel patterns, and selects and uses a part of the character pattern and pixel pattern area. a bitmap memory 15 that stores character patterns and pixel patterns selected by the image handler 14 in page units; a memory controller 16 that controls access timing to the bitmap memory 15; It has an interface section 17 that outputs an image signal, and an output interface section 18 that outputs a signal to a display panel. The control unit 12 includes a CPU 12a that controls various operations, a RAM 12b that temporarily stores data and calculation results in various operations, and also stores character specifications to be described later, and a RAM 12b that stores various programs as well as an intermediate language. A ROM 12C that stores a program for creating character specifications, a parallel input/output circuit 12d that inputs operation key signals in parallel and outputs signals to the display section in parallel, and D that performs access control in data transfer between memories.
It has an MA controller 12e.

FIG. 3(a) shows a character specification as an intermediate language created by the control unit based on the character code and control code sent from an external personal computer or the like. In the control unit, the CPU 12a sets attributes such as enlargement, reduction, rotation, inversion, emphasis, etc., and X and Y representing the size of the character pattern, based on the program in the ROM 12c and the received character code and control code (may be performed by key operation). A character specification is created and stored in the RAM 12b. let

In the above configuration, the operation will be explained as follows. When character codes and control codes are input to the interface section 11 from an external personal computer, etc.,
The CPU 12a judges this, creates the character spec shown in FIG. 3(a) based on the program in the ROM 12c, stores it in the RAM 12b, and then generates a corresponding character pattern 31 from the character pattern ROM 13 based on the font address. (Figure 3 (b)). The character pattern 31 is rotated by 90 degrees based on the attribute information (FIG. 3 (c)), and is also made into X5XYSO size based on the X span and Y span, and the As shown in FIG. 3 (b), the character pattern 31 is transferred from the reference point P to the positions Xp and Y of the bitmap memory 15 (the third
Figure (b)). Next, when the character code and control code are sent, the same operation is performed again. When phono 1-prototype 41 is accessed corresponding to that character code (Fig. 4 (a)), X and Y span information (X=X,
, Y=Y, ), a character pattern (FIG. 4(b)) is formed using a part of the area of the prototype 41.

This processing is performed by the image handler 14.

When an image for one page is thus formed in the bitmap memory 15, an image signal is outputted to the recording section 2 via the interface section 17.

Note that FIG. 4(C) is based on the span information of X=X, Y=Y, and FIG. 4(D) is based on the span information of X=X2. Y=YZ
This is based on span information. When a character code is serially input to the interface section 11, an instruction for area selection is received by a control code, and such processing is performed, while other processing is performed as usual. When an image for one page is thereby formed on the bitmap memo IJ 15, an image signal is outputted to the recording section via the interface section 17.

FIG. 5 shows the recording unit 2, in which 20 is a laser light source that emits a laser beam 22, 21 and 25 are polarizers, 23 is a modulator having an image signal input terminal 24, 26 is a rotating polygon mirror, and 27 is an fθ lens. , 28 is a photosensitive drum, 29 is a developing device, and 30 is a transfer device.

In the recording section 2 having the above configuration, when an image signal is input from the interface section 17 to the input terminal 24 of the modulator 23, the laser beam 22 emitted from the laser light source 20
is modulated according to the image signal. This laser beam 2
2 is scan-controlled by a rotating polygon mirror 26 and exposes a photoreceptor drum 28 through an fθ lens 27. The photoreceptor drum 28 is charged before exposure, and an electrostatic latent image corresponding to the image in the bitmap memory 15 is formed on the photoreceptor drum 28 by this exposure. This electrostatic latent image is transferred to the developing machine 2.
The toner is developed by 9 and transferred onto the recording paper 5 by a transfer device 30. The toner image on the recording paper 5 is fixed by a fixing device (not shown), and recording of the image is completed.

〔Effect of the invention〕

As explained above, according to the character generating device of the present invention, since it is possible to select and use a pattern in a specified area in a character pattern, it is possible to increase the number of character patterns while suppressing cost amplification.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing one embodiment of the present invention. FIG. 2 is an explanatory diagram showing the image signal generation device in FIG. 1. FIGS. 3A, 3B, and 3X are explanatory diagrams showing character pattern selection processing. Figure 4 (a), (b), (c),
(D) is an explanatory diagram showing selective use of a part of the area of the original pattern. FIG. 5 is an explanatory diagram showing a laser recording section. Explanation of symbols 1--Image signal generator 2--Recording section 11--Interface section 12--11--Control section

Claims (1)

[Scope of Claims] A character generation device that generates a character pattern corresponding to a character code and stores it in an image memory, comprising: a storage means that stores the character pattern; and a pattern in a part of the character pattern. A character generating device characterized by comprising a control means for creating a pattern in the partial area based on a character pattern stored in the storage means when a command is given.