JPH03250864A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To attain split transmission of an original size with simple processing by applying division processing to one original of picture information into plural sets of picture information with an output enable main scanning width and sending the divided picture information when the recording paper size of a transmission destination is smaller than the original size. CONSTITUTION:The facsimile equipment consists of an original read means 12, a picture processing means 14, a transmission means 16, an original size detection means 18, a recording paper size detection means 20 and a size deciding means 22. Then the size of the read original and the recording paper size of the transmission destination are discriminated. When the recording paper size is smaller than the original size, the picture information of one original is subjected to division processing into plural picture information sets with a main scanning width able to be outputted and the split picture information is sent. Thus, one original of picture information is comparatively simply sent with division.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile machine capable of transmitting a single document in parts.

[Background of the Invention] In conventional facsimile machines, when the original size of the original on the sending side is larger than the recording paper size of the recording paper that cannot be loaded on the receiving side, the image information of the original is changed according to the recording paper size. Either the image is reduced in size and transmitted, or only the image information that fits the recording paper size is transmitted.

Recently, as shown in FIG. 8, for example, when recording an A3 size document 7o on A4 size recording paper 71 (FIG. 9), the image information of the document 70 is converted into an A4 size image information file. By dividing it into two parts, rotating it 90' and transmitting it, two sheets of recording paper 7 are printed as shown in Fig. 9A and B.
Techniques have also been developed that allow image information such as ``a'' and ``mouth'' to be recorded in 1.

[Problems to be Solved by the Invention] However, with the reduction method, information of the original size cannot be obtained.

A method of transmitting only the image information that matches the recording paper size is not a very good solution because the image information of the document is missing.

In the rotation method in which image information is rotated and transmitted in parts, the image information rotation process is complicated and requires a lot of processing time, so this technology cannot be installed in facsimile machines that aim to be inexpensive.

Therefore, this invention takes these points into consideration,
The purpose of the present invention is to propose a facsimile device that can relatively easily transmit image information of a single document in parts.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention includes a document reading means, a document size detection means for detecting the size of the read document, and a recording paper size of the transmission destination. a recording paper size detection means for determining the size of the document size and the recording paper size; and a size determination means for determining the size of the document size and the recording paper size; The present invention is characterized in that it is comprised of an image processing means that divides the image information into a plurality of images, and a transmitting means that transmits the divided image information.

[Function] When it becomes clear through the transmission procedure that the recording paper size is smaller than the document size, the main scanning width that can be sent in one transmission is determined, and the line data corresponding to that main scanning width is sent from the main scanning direction side. Send and repeat this for one page.

For the next page, line data with a main scanning width t is read and transmitted from the direction opposite to the main scanning direction, and this is repeated for one page.

Then, if the recording paper size is A4 size and, for example, an A3 size document is to be transmitted, it will be divided into two sheets and transmitted as shown in FIG.

When sending the next page (8), the last predetermined section of the previously transmitted line data can be read as an overlap section, and white image information can also be sent in place of the image information on the scanning start side from this overlap section. .

In that case, the recording state will be as shown in FIG.

[Embodiment] Next, a first example of a facsimile device according to the present invention will be described.
This will be explained in detail with reference to the figures below.

For convenience of explanation, the functional blocks of the invention will be described with reference to the first country.

In FIG. 1, 12 is a document reading means, and 14 is an image processing means, which determines which area of the read image information is to be transmitted, which area is converted into white image information and transmitted, etc. processing is performed.

Reference numeral 16 denotes a sending epsilon means; 18 a document size detection means; and 20 a detection means for detecting the recording paper size of the recording paper fully loaded in the other party's facsimile machine.

22 determines the size from the information of the original size and the recording paper size, and supplies the information to the image processing means 14.

The image processing means 14 determines the main scanning width that can be transmitted based on this information, and performs the image processing as described above.

Among these means, image processing means 14. Original size detection means 18. Both the recording paper size detection means 20 and the size determination means 22 can be configured using software.

In order to achieve the functions shown in FIG. 1, the facsimile machine 10 is provided with image communication processing means as shown in FIG.

In the figure, image information of a document read by document reading means 12 is compressed and encoded by an encoding section 32 and then stored in a memory section 34.

The image information read out from the memory section 34 is sent to the decoding section 36.
The data is decoded line by line and stored in the line buffer 38.

The image information read by the line buffer 38 is subjected to image processing necessary for divided transmission as described above in the image processing section 40.

That is, the original size of the original can be determined from the length of one line of the read image information. When the communication line with the destination is connected, the communication procedure begins in phase B, and the capabilities of the destination device are transmitted. This information also includes information on the size of the recording paper loaded in the other party's machine.

The size of the detected recording paper size and the document size are determined, and the number of divided transmission sheets, the transmission amount of one line, etc. are calculated from the output of the determination.

In the example described below, when an A3-sized document 70 is recorded on two sheets of recording paper 71 as shown in FIG. This is a case where the image information is left as is, and the rest is converted to white image information and sent.

The line buffer 38 and the image processing unit 40 achieve the same functions as the image processing means 14 described above.

As shown in FIG. 2, the image information for which the divided transmission process has been completed is compressed and encoded in the encoding section 42 to match the transmission format, and then sent to the communication line side via the modem 44. The modem 44 constitutes the transmitting means 16.

Each part in Figure 2 is managed by the CPU, and the ROM
Image processing will be performed based on a print department program stored in (none of which is shown).

Here, an example of divided transmission of this example will be shown with reference to FIG. For convenience of explanation, the document 70 is assumed to be A3 size, and the size of the recording paper 71 loaded in the destination machine is assumed to be A4 size.

In that case, the first page to be transmitted is line data from the main scanning direction side to the A4 size width corresponding to one page of the R manuscript 70, relative to the main scanning width of the manuscript 70 shown in FIG.
Figure A).

The image information for the next transmission page is read out as line data for A4 size from the side opposite to the main scanning direction (C in the same figure). At that time, transmission data is reduced by the following method.

In other words, among the line data to be transmitted on the next page that overlaps with the line data of the previous page, the overlapping line data that leaves a specific overlap area OR is sent as white image information instead. be done.

Therefore, if the overlap area OR is indicated by a diagonal line area as shown in FIG.
The image information up to R is transmitted as white image information, and actually only the line data from the overlap area OR onward is transmitted.

In this way, it is not necessary to transmit most of the duplicate line data, so the transmission time is shortened accordingly.

On the receiving side, the original 70 is created by overlapping the two received recording sheets 71 with the overlap area OR as a reference.
It is possible to reproduce image information at the original size.

The overlap region OR may be approximately several millimeters.

The overlap region OR is located at its landmark 8 as shown in FIG.
1 may be added. In this case, it is convenient to add it to the communication It (header) 80 area because it does not interfere with other image information.

Such divided transmission can be achieved by processing as shown in FIG. The figure specifically illustrates cases where the document size is A3 and the recording paper size is A4.

When the print department program for divided transmission processing starts, it first detects the original size of original 70, and if it is not A3 size, there is no specification for original size transmission, and the recording paper size of the destination machine is A3 size, The normal sending process is 8 or 1 (steps 51.52, 53.54).

However, if the original size is A3 and you specify to send the original size, but the recording paper size of the recipient's machine is not A3, it can be sent in one transmission due to the relationship between the original size and the recording paper size. The convergence W of one line is calculated (
Step 51,5253.55).

Thereafter, one line of encoded data is decoded and sent to the line buffer (step 56). Then, out of the line data accumulated in the line buffer, only W is read out from the scan start side in the main scanning direction, subjected to encoding processing, and then sent to the sending means 16 (step 57).

This process is continued until one page is completed, and when the transmission for one page is completed, a control return signal RTC indicating to the transmitting means 16 to move to a control signal is sent (steps 58 and 59). , In response to this, the sending means 16 sends a multi-page signal MPS4 indicating the end of the page to the other party's machine.
M is performed (step 60).

Subsequently, the line data of the same page as the first page is decoded and stored (step 61). After that, the unnecessary line data except for the overlap area OR is filled with white image information, and the white image information is read out from the right end in the main scanning direction, including this white image information. The data is sent to the sending means 16 (
Step 62.63).

This process is continued until one page is completed, and when the transmission for one page is completed, the transmitting means 16 is controlled! Il
A control I return signal RTC indicating the transition to the signal is sent (step 64.65), and in response to this, the transmitter 816
A procedure end signal EOP is sent from the other party's machine, and the divided communication ends (step 66).

The above-mentioned example is just an example, and the original size, recording paper size, etc. are not particularly limited, and the number of sheets to be divided and transmitted also differs depending on the size. For the divided transmission, as shown in FIG. 7, division processing may be performed in which the overlapping line data is transmitted as is.

[Effects of the Invention] As explained above, according to the present invention, it is possible to perform divisional transmission in the original size with simple processing, and therefore it is extremely convenient in practical use.

Roughly speaking, by providing an overlap area on the next and subsequent pages, the process of restoring the original size on the receiving side becomes very simple.

Furthermore, since unnecessary portions of image information are not transmitted, the redundancy of compression codes can be reduced when image information is compressed and transmitted, so transmission time can be shortened and communication costs can be saved.

[Brief explanation of drawings]

FIG. 1 is a functional block diagram of a facsimile device according to the present invention, FIG. 2 is a system diagram of the facsimile device, FIGS. 3 to 5 and 7 are explanatory diagrams of divided transmission, respectively, and FIG. 6 is a division process 8 and 9 are explanatory diagrams of conventional divided transmission. 12... Original reading means 14... Image processing means 16... Transmitting means 18... Original size detecting means 20... Recording paper size detecting means 22... Size determining means 32.42... Encoding unit 36...Decoding unit 38...Line buffer γ 40...Image processing unit 44...Modem

Claims (1)

[Claims] (1) Original reading means; Original size detection means for detecting the size of the read original; Recording paper size detecting means for detecting the recording paper size of the recipient; a size determining means for determining the size, an image processing means for dividing image information of one document into image information of a plurality of sheets having an outputtable main scanning width when the recording paper size is smaller than the document size; and divided image information. A facsimile device comprising a transmitting means for transmitting.