JPH01161969A - Control system for facsimile reception device - Google Patents

Abstract

PURPOSE:To improve the picture quality of a received picture by adopting the maximum paper size set in the transmission procedure as a receptible paper size, informing it to the sender, dividing the received picture into the pictures of the paper size receptible by its own terminal equipment, recording and outputting the pictures with unmagnification. CONSTITUTION:The maximum paper size able to be set by the facsimile transmission control procedure, that is, size A3 is formed to the sender as a receptible size. The reception side stores the received picture on a picture memory 6 directly sequentially. When the picture information transmission is finished, the reception side uses the coding decoding section 10 to code the received picture information stored in the picture memory 6 by means of the coding decoding section 10 into the original picture signal and stores it again in the picture memory 6. Then the picture of size A3 stored in the picture memory 6 is converted into plural pictures of A4 size by a picture conversion section 7 and the result is recorded and outputted by a plotter 4. Thus, the picture of A3 size is recorded and outputted with unmagnification and the deterioration of the picture quality is prevented.

Description

[Detailed description of the invention] [Technical field] The present invention relates to a control method for a facsimile receiving apparatus.

[Prior Art] In recent years, facsimile machines with various functions have been put into practical use, and among them there is a facsimile machine that can read and transmit images of a size larger than a standard size.

A facsimile receiving device receives large size image information read by such a facsimile device.

If only the standard size A4 size can be received, the sending side transmits the image information in a state where it is reduced to the standard size A4 size and then transmits the single image information.

In this way, in the past, large-sized image information was reduced and transmitted, resulting in a disadvantage that the image quality of the received image recorded and output by the receiving device was significantly degraded.

[Objective] The present invention has been made in order to eliminate the disadvantages of the prior art, and it is an object of the present invention to provide a control system for a facsimile receiving apparatus that can improve the quality of received images.

[Configuration] In order to achieve this objective, the present invention notifies the sending side of the maximum paper size that can be set in the transmission procedure as a receivable paper size, and transmits the received image on its own terminal. The image is divided into images of recordable paper size, and these images are printed and output at the same size.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows a facsimile machine according to an embodiment of the present invention.

In the figure, a system control unit 1 performs control processing for the entire facsimile machine, and a system memory 2 is used by the system control unit 1 as a work area. Parameters such as set speed dial information are also stored.

The scanner 3 is for reading a transmitted document or the like at a predetermined resolution, and the plotter 4 is for recording and outputting a received image or the like at a predetermined resolution. In this case, the plotter 4 can record and output a standard size 44 size image.

The operation display section 5 consists of operation keys and a display for operating this facsimile machine, and the image memory 6 is for storing image information such as received images, and is used for conversion and transmission processing to be described later. It is also used as an image buffer when performing.

The image conversion unit 7 is for dividing the received image into 44-size images and performing image division conversion processing for vertically and horizontally converting the image. The image processing unit 8 is for performing image scaling, linear density conversion, etc. This is for performing image processing.

The encoding/decoding unit 9 encodes and compresses both signals, and
This is for decoding encoded and compressed image information into the original image signal.

The communication control unit 10 is for performing predetermined facsimile transmission control procedure processing, and the modem 11 modulates and demodulates digital data so that an analog line network such as a public telephone line can be used as a transmission line. It is something.

The network control device 12 is for connecting the facsimile device to the public telephone line network, and also has an automatic call originating and receiving function.

These system control section 1, system memory 2, scanner 3, plotter 4, operation display section 5, image memory 6, image conversion section 7, image processing section 8, encoding/decoding section 9, communication control section 10. Modem 11. The network control devices 12 exchange data with each other via the system bus 13.

The image division conversion process executed by the image conversion unit 7 will be described next.

For example, as shown in Figure 2(a), an A3 size image is
When converting to a 4-size image, the document is divided into two parts in the longitudinal direction at a position A2 spaced from the beginning At by the length a4 in the 44-size width direction, as shown in FIG. Convert the portrait and landscape so that the left edge of the original document is at the beginning,
Two 44-size images are formed.

Here, υa3 is the width direction dimension of A3 size, Ta
4 is the longitudinal dimension of A3 size, 1lla4 is A4 size
Ta4 indicates the dimension in the width direction of the size, and Ta4 indicates the dimension in the longitudinal direction of A4 size.

By the way, since facsimile machines usually add information to identify the own terminal device, transmission time, and transmission device identification information to display the number of pages to be sent to the beginning of the transmitted image, the transmitted image information is longer than the size of the original to be sent.

For this reason, the length of the transmission image information actually transmitted is A
The length is the length of the last part A3 of the 3-size transmission document plus the length Th of the transmitting device identification information, and thereby,
The A3 size transmitted image is converted into three A4 size recorded images. Further, at this time, in the third recorded image, a margin image is recorded in the portion other than the length Th from the right.

Further, an image of a paper size other than A3, for example, B4 size, can be similarly divided into A4 size images and subjected to portrait/horizontal conversion.

Thereby, even when image information of a size larger than the paper size that can be printed and output by the plotter 4 is received, the received image can be printed and output at the same size.

With the above configuration, when this facsimile machine makes a call,
As shown in FIG. 3, first, the calling side (sending side) is notified that the own terminal is a facsimile machine by responding with the signal CHD, and then the function of the own terminal is notified with the signal DIS and the signal N.
The sender is notified by SF.

At this time, the receivable size is the maximum paper size that can be set in the facsimile transmission control procedure, that is,
Notify A3 size.

Thereby, the transmitting side notifies the transmission function to be used at that time using the signal NSS, and then sends out the signal TCP to perform modem training. Also, this signal NSS
Now, the sending side can set the paper size up to the maximum size that its own terminal can send, and here it is assumed that A3 size is set as the paper size.

If this modem training is successful, the receiver receives the signal M
In response to the CF, the transmitting side transmits the image information PIX. When the receiving side receives this image information PIX,
The received image information PIX is directly stored in the image memory 6 one after another.

When the sending side finishes transmitting the image information, it sends the image signal EOP to notify the receiving side of this, and when the receiving side responds with the signal MCF, the sending side sends the signal DCN. , disconnects the line, thereby terminating all procedures for transmitting image information.

When image information transmission is finished in this way, the receiving side
The received image information stored in the image memory 6 is encoded into the original image signal by the encoding/decoding section 10 and stored in the image memory 6 again. The A3 size image stored in the image memory 6 is converted into a plurality of A4 size images by the image conversion section 7.
It is converted into an image of the same size, and the plotter 4 records and outputs it. As a result, an A3 size image is recorded and output as three A4 size images at the same size, as described above, so that the image quality does not deteriorate.

In addition, by using this function, for example, it is possible to read and send a 44-size original in landscape orientation, and in that case, the transmission time can be shortened to about 172 mm compared to the normal case, reducing the cost of image information transmission. can do.

By the way, in the above-mentioned embodiment, the case where the transmitting side transmits A3 size image information when the receiving side can record an A4 size image is explained, but even if the transmitting side transmits 84 size image information, In the same manner as described above, the image information can be divided into a plurality of A4 size images and recorded and output at the same size.

Further, when the recordable size on the receiving side is 84 format and the transmitting side transmits A3 size image information, the receiving side can similarly record and output the image at the same size.

[Effects] As described above, according to the present invention, in the pre-transmission procedure, the maximum paper size that can be set in the transmission procedure is notified to the sending side as a receivable paper size, and the received image is
Since the image is divided into images of a paper size that can be recorded by the own terminal, and the images are recorded and output at the same size, the image quality of the received image can be improved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a facsimile machine according to an embodiment of the present invention, FIGS. 2(a) and (b) are schematic diagrams showing an example of image conversion from A3 size to A4 size, and FIG. 3 is a block diagram showing an example of image conversion from A3 size to A4 size. 3 is a time chart showing an example of a facsimile transmission procedure. 1... System control unit, 6... Image memory, 7...
・Image conversion section. Figure 1 Figure 2 (a)
(b) No. (Semi-N.

Claims (1)

[Claims] A control method for a facsimile receiving device equipped with an image information storage function includes an image division conversion means that divides the received image into recordable sizes, and responds to the transmitting device using the maximum paper size that is possible in the transmission procedure as a receivable size. A control method for a facsimile receiving apparatus characterized in that all received image information is once accumulated, and the accumulated image information is divided into recordable sizes by the image division conversion means and recorded and outputted at the same size.