JPS63153959A - Data input/output control system - Google Patents

Abstract

PURPOSE:To enable the input/output of data between devices to be performed, by providing a data reducing/magnifying means which arranges the number of picture elements in a system including two devices having data output means which output data with different number of picture elements. CONSTITUTION:The data from a facsimile 71 is stored in a memory 82 via the modem 84 and the line control part 83 of a personal computer 73. The data stored in the memory 82 is converted to the data suitable for the number of picture elements of a display 87 by a data reducing/magnifying part 1, and is stored in a video memory 86. Meanwhile, the data stored in the video memory 86 is converted to the data suitable for the number of picture elements of the facsimile 71 by the reducing/magnifying part 1, and is stored in the memory 82. The data stored in the memory 82 is transmitted to the facsimile 71 via the control part 83 and the modem 84. Thus, it is possible perform the input/ output of the data between the devices.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a data input/output control method, and more specifically, the present invention relates to a data input/output control method, and more specifically, it relates to a data input/output control method, and more specifically, it relates to a data input/output control method that can be applied to two devices such as a facsimile and a personal computer, which have output means with different numbers of pixels. This invention relates to a data input/output control method for maintaining data compatibility when inputting and outputting data between each device in a system that combines multiple devices.

(Prior Art) FIG. 7 is a schematic block diagram showing a modem that combines a facsimile and a personal computer. As can be seen from the figure, a facsimile 71 and a personal computer 73 are connected to each other via a public line 72. Here, a block diagram of the internal configuration of the personal computer 73 shown in FIG. 7 is shown in FIG.

In FIG. 8, 81 is a processor, 82 is a memory for storing data received from a facsimile machine (not shown) or data sent to the facsimile machine, 83 is a line control unit, and 83 is a line control unit.
Reference numeral 4 denotes a modem responsible for transmission and reception with the facsimile, 85 a display controller that controls display operations of a video memory 86 and a display 87, which will be described later, and 86 a video memory that stores data to be displayed in the video memory 87, which will be described later.
87 is a display.

Regarding the processing of data transmitted from the facsimile 71 shown in FIG. 7 and transmitted via the public line 72 in the personal computer configured as described above,
This will be explained below using FIG.

The data sent from the facsimile 71 in FIG.
It is transmitted through the public line 72 in the figure, is received by the modem 84, and is stored in the memory 82 by the line control unit 83. The data stored in this memory 82 is stored in a cipideo memory 86 by the processor 81K. The display controller 85 then scans the video memory 86 to display the display 87.
In addition, the operation of transmitting the display data of the personal computer 73 to the facsimile 71 in FIG. The data stored in the memory 82 is transmitted via the modem 84 to the seventh
Send it to the public line 72 in the figure and send it to the facsimile 71 in Figure 7.
Send to.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional method, since the number of pixels of the personal combinator and facsimile data is different, for example, the number of pixels in the horizontal direction of the display of a general personal combinator is different. The number of pixels is 640 pixels, and the number of pixels in the horizontal direction of the Gnl facsimile is 1728 pixels, so i
'? - There was a problem that the data received from the facsimile could not be displayed on one screen on the Sony computer's display gray. Also, when display data from a nose sonal computer is sent to a facsimile, the facsimile does not have the number of pixels of the data sent, so for example, a Gl facsimile has fewer than 1728 pixels in the horizontal direction, so it should be treated as abnormal data. I couldn't output it.

The present invention is intended to solve these problems, and provides data input/output control that enables data input/output between each device in a system including two devices having data output means with different numbers of pixels. The purpose is to provide a method.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a system including two devices having data output means having different numbers of pixels. Reducing or enlarging the data to match the number of pixels of the data output means of the own device, and reducing or enlarging the data sent to another device to match the number of pixels of the data output means of the other device. It is characterized by the provision of means.

(Operation) According to the present invention having the above configuration, when the number of pixels of the data transmitted from another device is different from the number of pixels of the output means of the own device, the number of pixels of the data transmitted from the other device is different from the number of pixels of the output means of the own device. The data is reduced or enlarged by multiplying the number by a predetermined magnification by a data reduction/enlargement means to match the number of pixels of the data output means of the own device, and then supplied to the output means of the own device. Also, when transmitting data from the own device to another device, the data to be transmitted is multiplied by a predetermined magnification by the data reduction/enlargement means in advance to reduce or enlarge the data to match the number of pixels of the data output means of the other device. After enlarging it, send it to another device.

Therefore, the present invention can solve the above-mentioned problems, and when data is transferred between each device in a system including two devices having means for outputting data with different numbers of pixels, the data of each device is It is possible to provide a data input/output control method that can output received data to an output means.

(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. In this figure, the same reference numbers as in FIGS. 7 and 8 indicate the same components. As a different component, 1 is a data reduction/enlargement unit that reduces or enlarges data to be written in the memory 82 at a desired magnification. The detailed operation of this data reduction/enlargement section 1 will be explained with reference to the drawings. Second
The figure shows an example of reducing data by a factor of A. As shown in the figure, one pixel out of three pixels, the shaded area in the figure, is set as an effective pixel, and the data is reduced by a factor of 14. That's why. FIG. 3 is a diagram showing an example of doubling the data, and as can be seen from the figure, data of one pixel is treated as two pixels, thereby doubling the data.

Next, FIG. 4 is a diagram showing an example of a display of a personal computer in which the number of pixels in the horizontal direction is 640 pixels. Here, one screen consists of 32 pixels worth of margin data from the left edge of the display, 576 pixels worth of display data, and 32 pixels worth of display data from the left edge of the display.
It consists of margin data for pixels. Facsimile 21
When the data received from the processor 81 and stored in the memory 82 is stored in the video memory 86 according to instructions from the processor 81, the data reduction/enlargement unit l converts the pixels for the display shown in FIG. 4 according to the flow shown in FIG. Converted to configuration. In other words, the margin data for 32 pixels is stored in the video memory 8.
6 (steps 101 and 102), the 1728,728 pixel data received from the facsimile is reduced to the transmitted data by the data reduction/enlargement section 1, and written to the video memory 86 as data for 576 pixels (steps 103, 104).

Further, margin data for 32 pixels is written (steps 101 and 102), and the data is converted into a total of 640 pixels in the horizontal direction.

Further, FIG. 6 is a diagram showing an example of the output of data transmitted to the facsimile.

As can be seen from the figure, the output example for facsimile is 224 pixels of margin, 1280,280 pixels of data area, 2
The total width in the horizontal direction is 172872 with a margin of 24 pixels.
Consists of 8 pixels. The data displayed on the display 87 of the personal computer, that is, the video memory 86
The data for 640 pixels stored in the memory 82 is converted into the data configuration shown in FIG. 6 by the data reduction/enlargement section 1 according to the flow shown in FIG. That is, after storing the margin data for 224 pixels in the memory 82 (steps 101 and 10
2) The data for 640 pixels from the video memory 86 is doubled by the data reduction/enlargement unit 1 and becomes 128 pixels.
It is written into the memory 82 as 0280 pixels (steps 103 and 104). Furthermore, margin data for 224 pixels is written to the memory 82 (step 101.10).
2) A total of 1728728 pixels in the horizontal direction are converted.

Then, 1728728 pixels stored in the memory 82 -
The data is transmitted to the facsimile 21 via the line control section 85 and modem 84, and the facsimile 21 outputs the data as shown in FIG. 6 based on the data.

(Effects of the Invention) As explained above, according to the present invention, in a system including two devices having means for outputting data with different numbers of pixels,
When data is transferred between devices, the number of pixels of the data is divided or multiplied by a predetermined value in advance to reduce or expand the data to match the number of pixels of the output means to which the data is output. It is possible to provide a data input/output control method that makes it possible to output data.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing an example in which data in this embodiment is reduced by a factor of 2, and FIG. 3 is a diagram in which data in this embodiment is enlarged by a factor of 2. FIG. 4 is a diagram showing an example of displaying data from a facsimile, FIG. 5 is a flowchart showing the data processing operation of this embodiment, and FIG. 6 is a display example of data sent to a facsimile. 7 is a schematic block diagram of a composite system of a facsimile and a personal computer,
FIG. 8 is a block diagram showing the internal configuration of the personal computer of FIG. 7. 1...Data reduction/enlargement section, 71...Facsimile 1
Huff 2...Public line, 73...Personal computer, 81...Processor, 82...Memory, 83
... line control unit, 84 ... modem, 85 ... display controller, 86 ... video memory, 87 ... display.

Claims (1)

[Scope of Claims] In a system including two devices having data output means with different numbers of pixels, at least one device reduces or enlarges data received from another device and outputs data to the pixels of its own data output means. A data input/output control method characterized by comprising a data reduction/enlargement means that matches the number of pixels of the data output means of the other device by reducing or enlarging the data to be transmitted to another device to match the number of pixels of the data output means of the other device. .