JPH0338723A - Method and device for generating print output data - Google Patents

Abstract

PURPOSE:To obtain a hard copy corresponding to an image displayed by an electrical display means at high speed by scrolling the routine data and synthesizing this data with the data read out of a print image data store means after a magnification process. CONSTITUTION:When a hard copy is obtained via a laser beam printer LBP 2, the routine data on a text plane 3b stored in an image memory 3 and to be displayed on a CRT display 1 is scrolled by a scroll processing part 5 in accordance with a display device of the device 1. Then the scrolled data is magnified by a magnification processing part 6 based on a prescribed magnifica tion coefficient. This magnified routine data is synthesized with the graphic data read out of a print image memory 4 by a synthesizing part 7. Thus the image data synthesized with the routine data in a desired area is supplied to the LBP 2. As a result, a hard copy of an image shown on the device 1 is obtained at high speed.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a method and apparatus for generating data for print output, and more specifically, to a CRT display device type pneumatic display means, a laser beam printer, etc. The present invention relates to a data generation method and apparatus for printing out an image obtained by combining a fixed image such as a character and a desired image in an image display system having a printing means as an image display means.

<Prior art and problems to be solved by the invention> Conventionally, CRT display devices have been widely provided as image display devices, but recently, devices incorporating not only CRT display devices but also printers have been widely provided. things are starting to be provided.

If such an image display device is adopted, images that change rapidly as needed can be easily displayed on a CRT display device, but on the other hand, it is also possible to display images that you want to save on paper using a printer. can. especially,
Recently, laser beam printers (hereinafter abbreviated as LBP), which have a faster printing speed than wire dot printers, have been increasingly used.

As described above, the configuration of an image display device having both a CRT display device and an LBP includes an image memory (31) for the CRT display device and an image memory (32) for the LBP, as schematically shown in FIG. and image memory (
An image is displayed on the screen by transferring the contents of 31) to the CRT display device (33), and conversely, an image is displayed on paper by transferring the contents of the image memory (32) to the LBP (34). Display.

Furthermore, the image data is written to the image memory (32) at the same time as the image data is written to the image memory (31) by a drawing device (not shown).

Therefore, the image can be constantly monitored by the CRT display device (83), and the LBP (34) can be operated at the timing when the desired image is displayed on the screen of the CRT display device (33). A hard copy of the desired image can be obtained. Of course, it is also possible to operate only L B P (34).

However, when regular figures such as letters are displayed on the screen of the CRT display device (33) at the same time as other figures, the difference between the display contents of the CRT display device (33) and the L B P (34) There is a problem in that there is no guarantee that the hard copy will match.

To explain this point in more detail, the image memory (31) stores a plurality of color images in order to cope with the color display by the CRT display device (33).
It has a plain (31a), scrollable text so that the position of characters etc. can be set freely. are doing.

Therefore, the text plane (3
1b) The display position of characters, etc. can be easily changed by simply scrolling. In addition, image memory (32
) takes into account that the LBP (34) generally displays only black and white, the resolution of the LBP (14) is significantly higher than that of the CRT display device (33), and the memory capacity per brain is becomes significantly large (specifically, even if the resolution of the CRT display device (33) is high, it is 1024 x 1280;
The average resolution of B P (34) is 3072x38
40), a single plane configuration is adopted. Therefore, in order to change the display position of only characters, it is necessary to rewrite all the data for one screen, and the CRT display device (
33), it is not possible to follow the positional change of only characters, etc. As a result, if you try to obtain a node copy that corresponds to the surface of the CRT display device (33), which changes rapidly, the positions of characters, etc. will be shifted (see Fig. 6 (A). ), (B) the characters “TEXT”
reference).

Above, only the case using LBP was explained, but
Similar problems occur when using printers other than LBP, such as wire dot printers.

<Object of the invention> This invention was made in view of the above problems,
It is an object of the present invention to provide a printout data generation method and apparatus that can quickly obtain a hard copy corresponding to an image displayed on an electric display means such as a CRT display device.

Means for Solving the Problems> In order to achieve the above object, the method for printing data of the present invention is to print a desired image into an image having a capacity determined based on the resolution of an electrical display means and a printing means. In addition to storing the fixed image in the data storage means, the fixed image is also stored in the fixed form data storage means with a capacity determined based on the resolution of the electrical display means, and the data in the fixed form data storage means is scrolled by a predetermined amount, and The data read from the data storage is subjected to an enlargement process at a magnification corresponding to the ratio of both resolutions, and then combined with the data read from the image data storage means for printing and supplied to the printing means.

In order to achieve the above object, the printout data generation device of the present invention includes a first image data storage means for storing image data to be displayed on an electrical display means, and a first image data storage means for storing image data to be displayed on an electric display means, a second image data storage means for storing image data to be printed out; a scrolling means for scrolling data in the fixed form data storage means by a predetermined amount; and data read from the fixed form data storage means. an enlarging means for enlarging the image based on the ratio of the resolution of the electrical display means and the resolution of the printing means; and output data from the enlarging means and read data from the second image data storage means are combined and supplied to the printing means. It has a synthesis means for.

Incidentally, as the electric display means, a CRT display device,
A plasma display device or the like can be used, and as a printing means, an LBP, wire dot printer, ink jet printer, etc. can be used.

Effects> With the above printout data generation method, when a desired image and an arbitrarily selected fixed image are combined and visually displayed by an electrical display means, the printing means can generate the same image. When displaying content visually, reading image data from a printing image data storage means in which desired images excluding fixed form data such as characters are stored, and scrolling data in the fixed form data storage means; By enlarging the fixed form data read from the fixed form data storage means and combining it with the read image data, the fixed form data becomes at the same position as the display position on the electric display means.

Therefore, by performing a printing operation by the printing means based on this composite data, it is possible to obtain a hard copy that is faithful to the content displayed by the electrical display means.

Of course, the present invention can also be applied to the case where only the printing means is operated.

If the printer output data generation device has the above configuration,
Image data as amorphous data is stored in both image data storage means at respective resolutions, and fixed data such as characters is stored in the fixed data storage means. The contents of both image data storage means are updated at the same time, and when the image does not change and only the display position of characters, etc. is changed, the data of the fixed form data storage means is scrolled and displayed on the electric display means. be done. When obtaining a hard copy of the display by the electrical display means, the data in the fixed form data storage means is scrolled and the data read from the fixed form data storage means is subjected to enlargement processing to create image data for printing. It is only necessary to synthesize the data read from the storage means, and fixed data such as characters are synthesized at the same position as the display position by the electric display means, thereby making it possible to obtain a faithful hard copy.

That is, a hard copy that is faithful to the display on the electrical display means can be obtained in a short time without performing drawing processing on the image data storage means, which requires a considerable amount of time for redrawing.

<Example> Hereinafter, embodiments will be described in detail with reference to the accompanying drawings showing examples.

FIG. 1 is a flowchart showing an example of a method for generating data for print output. When display by LBP is instructed, it is determined whether or not it is necessary to display fixed data such as characters in step 'I. If it is determined that it is necessary to display the fixed form data, the fixed form data is read from the text plane for displaying the fixed form data on the CRT display device in step (3).
In step ■, the standard data is scrolled by a predetermined amount, in step ■, the read standard data is subjected to enlargement processing, in step ■, the image data is read from the image memory for the printer, and in step ■, the enlarged data is and the read image data, and in step (2), the combined data is supplied to the LBP. On the other hand, if it is determined in step 1 that there is no need to display the fixed form data, the image data is read out from the image memory for the printer in step (2), and the processing in step (2) is directly performed.

FIG. 2 is a schematic diagram illustrating the operation of generating data for print output. As shown in the IHI diagram (A), image data for print output is stored in the image memory for the printer, and as shown in the same figure (B). As shown in the figure (C), the characters "TEXT" are stored in the text plane, and an image in which the scrolled characters and image data are combined is displayed on the screen of the CRT display device as shown in Figure (C). has been done.

In this case, by scrolling the characters "TEXT" read from the text plane and enlarging them based on the capacity ratio between the image memory and the text plane (see (D) in the same figure). ), and correspond to each pixel in the image memory. Then, if the standardized data subjected to the enlargement processing and the image data read from the image memory are synthesized by taking the logical sum, the same figure (E
), a composite image corresponding to the composite image displayed on the tube surface 2 of the CRT display device is obtained.

Therefore, by operating the LBP based on this composite image, a faithful hard copy can be obtained.

In addition, the characters “” on the screen of a CRT display device
The characters “TEXT” are displayed at the display position of “TEXT” and the older position.
When displaying, scrolling corresponding to the display position may be performed.

<Embodiment 2> FIG. 3 is a block diagram showing an embodiment of the printout data generation device of the present invention, in which C as an electrical display means is used.
RT display device (1) and L as printing means
B P (2), an image memory (3) with a plane capacity corresponding to the resolution of the CRT display device (1), and L
An image memory (4) having a single plane configuration with a plane capacity corresponding to the resolution of B P (2), and a scroll processing unit (5) that scrolls the text plane (3b) that constitutes the image memory (3). ,text·
An enlargement processing unit (6) performs enlargement processing on the data read from the plane (3b), and synthesizes the enlarged data with the data read from the image memory (4) to generate L B P ( 2) Synthesizer (7)
It has The image memory (3) includes a plurality of color planes (3a) for color display as a first image data storage means, a text plane (3b) and a drag plane (3) as a fixed form data storage means.
C), and by supplying the output of the image memory (3) to the CRT display device (1), an image in which desired graphic data and fixed data such as characters are combined is displayed. The enlargement processing unit (6) has the ratio of the capacity of the image memory (4) to the capacity of the text plane set in advance as an enlargement coefficient, and performs enlargement processing based on this enlargement coefficient. The data is made to correspond to the data in the image memory (4). The synthesizing section (7) obtains synthesized data by performing a logical OR operation based on both data. Both of the image memories (3) and (4) store image data output from the Fukuyama device (not shown).

Operation 4 of the print output data generation device with the above configuration is as follows.

Desired graphic data output from the swinging device is stored in the color plane (3a) of the image memory (3) and also in the image memory (4). Then, fixed data such as characters are stored in the text plane (3b) of the image memory (3).
). And CRT display device (1)
Figures stored in the color plane (3a) and fixed data such as characters stored in the text plane (3b) are displayed in H9. In this case, if you want to change only the initial fixed form data display position, you can change the text
It is sufficient to scroll only the plain (3L+) fixed form data.

In addition, when obtaining a hard copy using L B P (2), the fixed form data of the text plane (3b) is scrolled by the scroll processing unit (5) in correspondence with the display device of the CRT display device (1). ,
The enlargement processing unit (6) performs enlargement processing based on a predetermined enlargement coefficient to obtain foot print data corresponding to the resolution of L B P (2). After that, the enlarged fixed form data and the figure data read out from the image memory (4) are supplied to the compositing section (7), and a logical sum operation is performed to create an image in which the fixed form data is synthesized at a desired location. Since the data can be obtained, the final image data can be
By supplying B P (2), a hard copy of the image being displayed on the CRT display device (1) can be obtained.

Therefore, since conventional LBP output data was generated using only a single-plane image memory, it was impossible to scroll only regular data. Since the data read from the text plane of the image memory for display and the data read from the image memory for LBP are combined and supplied to the LBP, it is possible to combine the data read from the text plane of the image memory for display and the data read from the image memory for LBP and supply it to the LBP. Scrolling can be accomplished easily.

FIG. 4 is a block diagram showing in detail an example of the configuration of the synthesis section (7), in which output data from the enlargement processing section (6) is transferred to a pair of buffer memories (71) via a manual switching section (71).
2) Supply to -h° of (73) and output selection section (74)
The text data is read from the other buffer memory by 6 and is ORed through the AND gate (75).
B). In the above AND game 1- (75), the synthesis instruction signal is Priscella! - The Q output signal of the flip-flop (77) is supplied to the terminal and the non-combined indication signal is supplied to the clear terminal.

Further, the OR gate (76) is supplied with read data from the image memory (4), that is, graphic data for LBP. The output data from the OR gate (76) is then supplied to L B P (2). In addition, the above-mentioned manual switching section (71) and output selection section (7
4) is supplied with a buffer replacement signal, and text data is stored in one buffer memory for each scan line.
Data is written and text data is read from the other buffer memory. However, 1 scan
Instead of performing the above operation for each line, the above operation may be performed for each multiple scan line.

When the synthesizer (7) having the above configuration is adopted, the Q output signal becomes a noise level by supplying the synthesis instruction signal to the preset terminal of the flip-flop (77), and the AND gate (75) Therefore, the text data read from the buffer memory on the side selected by the output selection section (74) is supplied to the OR gate (76), and the graphic data for LBP read from the image memory (4) is supplied. Combined with data, CRT display device (1
), you can obtain a hard copy of the image shown in ). Of course, while the above processing is being performed, the other buffer memory is selected by the input switching unit (71), so new text data can be written without affecting the display. Also, text
When data is not to be synthesized, it is sufficient to simply supply a non-synthesis instruction signal to the clear terminal of the flip-flop (77), and the Q output signal becomes low level to close the AND gate (75). Only the graphic data for the LBP read from the memory (4) is supplied to the LBP (2) through the OR gate (76) to obtain a node copy without text data. can.

8 Note that the present invention is not limited to the above-mentioned example; for example, instead of the text plane (3b), a drag plane that temporarily displays a figure by drawing and erasing a figure can be used. It is possible to synthesize the graphic data of the LBP with the graphic data of the image memory for LBP.
It is possible to use a wire dot printer, ink jet printer, etc. in place of P, and further,
In addition to being able to configure the fixed form data storage means with a separate memory, it is also possible to make various changes within the scope of the invention without changing the gist of the invention.

<Effects of the Invention> As described above, the first invention provides printout data for obtaining a hard copy that is faithful to an image displayed on an electric display means with scrolled fixed data such as characters. It has the unique effect of being easy to obtain.

The second invention is to display a screen that is faithful to the image displayed on the electrical display means while scrolling one fixed form of data such as characters, without increasing the number of planes of the data storage means for printout. This has a unique effect in that it is possible to easily obtain the data for outputting the reference printout for obtaining the -coded copy.

[BRIEF DESCRIPTION OF THE DRAWINGS] Figure 1 is a flowchart showing an embodiment of the printout data generation device, Figure 2 is a schematic diagram illustrating the output data generation operation, and Figure 3 is a schematic diagram illustrating the output data generation operation. FIG. 4 is a block diagram showing an example of the structure of the synthesis section in detail; FIG. 5 is a schematic block diagram showing the structure of a conventional example; FIG. 1 is a diagram showing both images on the tube surface of a conventional CRT display device and a node copy obtained by LBP. (1)... CRT display device as electrical display means, 0 (2)... LBP as printing means. (3)...Image memory, (3a)...Color plane as first image data storage means, (3b)...Text plane as fixed form data storage means.
plane, (4)...image memory as second image data storage means, (5)...scroll processing section, (6)...enlargement processing section, (7)...combining section special Applicant Daikin Ohgyo Co., Ltd. Agent

Claims (1)

[Claims] 1. Electric display means (1) and/or printing means (2) by synthesizing a desired image and an arbitrarily selected fixed image
In an image display system for visually displaying a desired image, an electrical display means (1) and a printing means (2)
Image data storage means (with a capacity determined based on the resolution of
3) In addition to storing the fixed image in (3a) and (4), the fixed format image is also stored in the fixed format data storage means (3b) with a capacity determined based on the resolution of the electrical display means (1), The image data for printing means is stored in a state where the data in (3b) is scrolled by a predetermined amount and the read data from the fixed data storage means (3b) is enlarged at a magnification corresponding to the ratio of both resolutions. Means (4
) A method for generating data for print output, characterized in that the combined data is combined with data read from the above data and supplied to a printing means (2). 2. In an image display system having an electric display means (1) and a printing means (2) as image display means, a first image storing image data to be displayed on the electric display means (1). Data storage means (3) (3a) and fixed form data storage means (3) for storing predetermined fixed form data.
b), and a second one that stores image data to be printed out.
Image data storage means (4) and fixed form data storage means (3)
a scrolling means (5) for scrolling the data by a predetermined amount; and a scrolling means (5) for scrolling the data by a predetermined amount; Expansion means to expand based on (
6), and a synthesizing means (7) which synthesizes the output data from the enlarging means (6) and the read data from the second image data storage means (4) and supplies it to the printing means (2). A data generation device for print output, characterized in that: