JPH01161968A - Control system for facsimile equipment - Google Patents

Abstract

PURPOSE:To send a picture with a size larger than the standard size by dividing a transmission picture into plural pictures corresponding to the receptible size, converting longitudinal and lateral of the sent picture to be formed and sending the transmission picture with unmagnification. CONSTITUTION:A scanner 5 can read the transmission original up to A3 size being a double side to the standard size A4 and in order to send the picture of the transmission original of the large size to the opposite equipment with unmagnification, the picture is split and the longitudinal and lateral of the picture obtained by the division is converted and the resulting picture is sent. That is, the original of the size A3 is read and converted into the picture of size A4, then the longitudinal direction of the original is sectioned into two at a position A2 apart by the short size Wa4 of the size A4 from the top A1, and the longitudinal/lateral position is converted so that the left end of the original comes to the top to form two pictures of the size A4. Thus, a picture with a size larger than the standard size is sent properly.

Description

[Detailed description of the invention] [Acting Field] The present invention relates to a control method for a facsimile machine.

[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.

For example, when such a facsimile machine scans and sends a B4 size document, which is larger than the standard size, if the receivable size of the recipient's device is A4 size, the B4 size image is reduced to A4 size and sent. I was trying to do that.

However, in such conventional devices, since the image obtained by the receiving device is reduced, the image quality is extremely poor.

Note that facsimile machines equipped with a function of prohibiting image reduction are also in use, but such facsimile machines have the problem that, for example, parts of a B4 size image that do not fit on A4 size are not transmitted. .

[Information] The present invention is intended to solve the problems of the prior art, and it is an object of the present invention to provide a control method for a facsimile machine that can appropriately transmit images of a size larger than a standard size.

[Configuration] In the present invention, when the receivable size is smaller than the size of the transmitted document, the transmitted image is divided into a plurality of parts corresponding to the receivable size, and the vertical and horizontal directions of the transmitted image thus formed are converted. This makes it possible to transmit images at the same size.

Hereinafter, one embodiment of the present invention will be described in detail 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 section 1 performs control processing for the entire facsimile machine, and its work area is formed in a work memory 2.

Further, the parameter memory 3 is for storing parameters such as speed dial information set in this facsimile machine.

The clock circuit 4 is used to know the current time, the scanner 5 is used to read transmitted documents etc. at a predetermined resolution, and the plotter 6 is used to record and output received images etc. at a predetermined resolution. belongs to. In this case, the scanner 5 can read transmitted originals up to A3 size.

The operation display section 7 consists of operation keys and a display for operating this facsimile machine, and the image processing section 8 is for performing image processing such as image scaling and linear density conversion. .

The image memory 9 is for storing various image information, and is also used as an image buffer when performing conversion and transmission processing, which will be described later.

The encoding/decoding unit 10.11 encodes and compresses both signals and decodes the encoded and compressed image information into the original image signal.

The communication control unit 12 is for performing predetermined facsimile transmission control procedure processing, and the modem 13 is for modulating and demodulating digital data so that an analog line network such as a public telephone line can be used as a transmission line. 6. The network control device 14 is for connecting the facsimile device to the public telephone line network, and is also equipped with an automatic call originating and receiving function.

These system control section 1, work memory 2, parameter memory 3, clock circuit 4, scanner 5, plotter 6, operation display section 7, image processing section 8, image memory 8, encoding/decoding sections 10, 11, communication control The section 12, the modem 13.degree., and the network control device 14 exchange data with each other via the system bus 15.

In this embodiment, the scanner 5 can read originals up to A3 size, which is twice the size of the standard A4 size, and the image of this large size original can be sent to the other party's device at the same size. In order to be able to transmit images to other areas, the image is divided and the image is transmitted after the vertical and horizontal directions of the divided image are converted.

That is, for example, as shown in FIG. 2(a), when reading an A3 size original and converting it into an A4 size image, the lengthwise direction of the original is changed from the top At to the widthwise dimension Wa4 of the A4 size. Divide the document into two with fiA2 at a distance of 100 degrees, and convert the vertical and horizontal directions so that the left edge of the original document is positioned at the beginning, as shown in the same figure (b), to form two A4-sized images. .

Here, Wa3 is the width direction dimension of A3 size, Ta
4 indicates the dimension in the longitudinal direction of A3 size, Wa4 indicates the dimension in the short direction of A4 size, and Ta4 indicates the dimension in the long direction of A4 size.

By the way, facsimile machines usually add information to identify the own terminal device, transmission time, and transmitting device identification information to display the number of transmitted pages at the beginning of the transmitted image. The information will be longer than the size of the transmitted document.

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 transmitter identification information, and thereby,
The A3 size transmission image is converted into three A4 size transmission images. Also, at this time, in the third transmitted image, a completely white image is recorded in the portion other than the length Th from the right.

Furthermore, when converting an image of a 13-size original to be sent to an 84-size image, the process is performed as shown in FIGS. 3(a) and 3(b).

However, in this case, the dimension Wa3 in the width direction of the 13-size paper is
Since it is shorter than the longitudinal dimension Tb4 of 84 size by length Ll, the length of the image after conversion is shorter than that of B4 size by this length Ll. Note that Vb4 represents the width direction dimension of 84 size.

In this way, a large-sized transmission document is converted into a smaller-sized image and transmitted to the receiving device. below,
This transmission mode is called conversion transmission.

Further, the following table shows the relationship between the combinations of transmission original sizes, receivable sizes, and transmission modes.

(Margins below) With the above configuration, the operator places the original to be sent on the scanner, selects immediate transmission as the transmission mode, enters the destination information, and then operates the start key on the operation display section 7 to send the document. When the operation is started, the system control unit 1
The process shown in FIG. 4 is executed to transmit the image information to the designated destination.

Note that when entering destination information, if a speed dial is set in advance, it can be used.

The system control unit 1 first reads the transmitted original image set on the scanner 5 (processing 101), and stores both of the read signals in the image memory 9 (processing 102).
.

Next, the specified destination information is transferred to the network control device 14 to make a call to the destination (process 103), and when the line is established, a pre-transmission procedure is executed by the communication control unit 12 (process 10).
4).

When the receivable size of the destination is notified through this pre-transmission procedure (process 105), the transmission mode is determined based on the above table based on the relationship between the receivable size and the size of the transmitted document, and the transmission mode is determined in the immediate mode. A size-based transmission process (process 106) is executed to encode and compress the image signal stored in the image memory 9 in the encoding/decoding unit 10 using an encoding method according to the destination, and then transmit it to the destination.

FIG. 5 shows an example of size-based transmission processing.

First, check whether the sending size is 13 size (Judgment 2)
01), when the result of judgment 201 is YES, check whether the receivable size of the destination is 13 size (
Judgment 202).

When the result of determination 202 is YES, 1:1 transmission is executed and the read image is transmitted as is (process 203).

When the result of decision 202 is NO, check whether the receivable size of the destination is 84 (decision 204).
. When the result of judgment 204 is YES, it is checked whether the facsimile machine is set to prohibit reduced transmission at that time (judgment 205), and the result of judgment 205 is YES.
When this happens, the 3->B4 conversion transmission is executed (process 206).

When the result of judgment 205 is No, both memory 9
After the image signals accumulated in the 1-image processing section 8 are reduced to a size of 84, the image signals are encoded and compressed by the encoding/decoding section 10 and transmitted to the destination. Execute reduced transmission (process 207)
.

When the result of judgment 204 is YES, it is checked whether the receivable size of the destination is A4 size (judgment 20
8). When the result of judgment 208 is YES, it is checked whether reduced transmission prohibition is set (judgment 209).
), when the result of judgment 209 is YES, A3→
A4 conversion transmission is executed (processing 2IO).

When the result of judgment 209 is NO, 1 stroke memory 9
After reducing the image signal accumulated in the image processing unit 8 to A4 size, the encoding/decoding unit 10 encodes and compresses the image signal and transmits it to the destination (processing 211).
.

Further, when the result of determination 208 is NO, printing information transmission is terminated at that point (process 212).

If the result of judgment 201 is NO, it is checked whether the transmitted original is in 84 size (judgment 213), and this judgment 21 is performed.
When the result of step 3 is YES, it is checked whether the receivable size of the destination is 84 format (decision 214).

When the result of determination 214 is YES, 1:1 transmission is executed and the read image is transmitted as is (process 215).

When the result of judgment 214 is No, it is checked whether the receivable size of the destination is A4 size (judgment 216).
. When the result of judgment 216 is YES, it is checked whether the facsimile machine is set to prohibit reduced transmission at that time (judgment 217), and the result of judgment 217 is YES.
When it becomes S, B4→A4 conversion transmission is executed (processing 218).

When the result of judgment 217 is NO, 1 image memory 9
The image processing section 8 reduces both signals accumulated in the image processing section 8 to A4 size, and then the encoding/decoding section 10 encodes and compresses them and transmits them to the destination (processing 219).
.

Further, when the result of judgment 217 is NO, processing 21
2, and at that point, the transmission of print information 6 is terminated.

Further, if the result of the judgment 213 is NO, it is checked whether the transmitted document is A4 size (judgment 220).

When the result of determination 220 is YES, 1:1 transmission is executed and the read image is transmitted as is (process 221). When the result of decision 220 is NO,
The process moves to process 212, and at that point, printing information transmission is terminated.

In this way, the transmission operation is performed in a manner according to the relationship between the size of the transmitted document and the receivable size, and the setting state of prohibiting reduced transmission.

In addition, this facsimile machine is capable of time-specific transmission in which the transmission time can be specified, and when the operator specifies this time-specific transmission, the process shown in Figure 6 is executed and the image information is transmitted. Ru.

That is, when the operator sets the original to be sent on the scanner 5, operates the operation display section 7, inputs destination information, specifies time-specific transmission, inputs the specified transmission time, and operates the start key, the system control starts. The unit 1 reads a transmission document set on the scanner 5 (processing 301), encodes and compresses it in the encoding/decoding unit 1o (processing 30)
2), the image is stored in the image memory 9 (processing 303).

Then, decide whether to wait until the specified sending time (3)
04 (No loop), at that time, the designated destination is called (process 305), and a pre-transmission procedure is performed (process 306).

As a result, when the receivable size of the destination is notified (
Process 307), based on the relationship between the receivable size and the size of the transmitted document, determines the transmission mode based on the table above, and determines the size of the storage mode similar to the size-based transmission process of the immediate mode shown in FIG. A separate transmission process (process 308) is executed to send the image signal accumulated in the image memory 9 to the encoding/decoding unit 1.
The image signal is once decoded into the original image signal at step o, and then encoded and compressed by the encoding/decoding unit 10 using an encoding formula according to the destination, and then transmitted to the destination. In the size-based transmission processing in this accumulation mode, when performing conversion transmission, both original signals obtained by decoding are developed in the image memory 9, and in this state, image processing for conversion transmission is performed.

In this way, in this embodiment, the size of the transmitted document and
Image information can be transmitted at the same size by converting and transmitting based on the receivable size of the destination, so the receiving side can always receive image information with good image quality. Note that execution of this conversion transmission can also be prohibited.

[Effects] As described above, according to the present invention, when the receivable size is smaller than the size of the transmitted document, the transmitted image is divided into a plurality of parts corresponding to the receivable size, and the transmitted image formed thereby is Since the image to be transmitted can be sent at the same size by converting the vertical and horizontal directions of the image, it is possible to appropriately send an image larger than the standard size.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a facsimile apparatus according to an embodiment of the present invention, FIGS. 2(a) and 2(b) are schematic diagrams showing an example of image conversion from A3 size to A4 size, and FIG. a) and (b) are schematic diagrams showing an example of image conversion from A3 size to B4 size, Fig. 4 is a flowchart for explaining transmission in immediate mode, and Fig. 5 shows an example of transmission processing by size. Flowchart FIG. 6 is a flowchart for explaining an example of transmission in the time designation mode. 1... System control unit, 8... Image processing unit, 9...
・Image memory. [Figure 1 Figure 2 (a)
(b) Figure 4 Figure 6

Claims (1)

[Claims] In a control method for a facsimile machine that is capable of reading transmitted originals that are at least larger than the standard size,
It is equipped with an image storage means for storing read images, and an image conversion means for converting the vertical and horizontal directions of the images stored in the image storage means. The image is read and stored in the image storage means, divided into multiple pages of images corresponding to the receivable size, and each divided image is transformed into a state in which the aspect and width are converted by the image conversion means, etc. A control method for a facsimile machine characterized by transmitting data to a destination in a double state.