JPH09186885A - Facsimile communicating method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily transmit a monochromatic and color mixed document and also easily transmit an image which is not of fixed size by making a mode change after sending a message end signal out when a document and a following document are chromatic and monochromatic, or different. SOLUTION: A control unit 1 which controls a pay telephone network, a modem 2 which modulates and demodulate a digital signal and an analog signal, a CPU 3 which controls the whole facsimile equipment, a ROM 4 stored with a program, a RAM 5 as a work area, a console panel 6 which accepts operation, a reader 7 which reads a document, etc., are provided. If a document which is sent or received and a document to be sent or received next are different, i.e., monochromatic and chromatic when a monochromatic and color mixed document is sent or received, the message end signal (EOM/PPS-EOM) is sent out and a mode change is made to send them through a single communication.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication method in a facsimile machine.

[0002]

2. Description of the Related Art In a conventional color facsimile apparatus, when a mixed document of a monochrome original and a color original is to be transmitted, one communication is performed only for the monochrome original and the next communication is performed for only the color original.

As for the image size, only the standard sizes such as A5, A4, A3 for the A version and B5, B4 for the B version are transmitted / received. I could not send and receive.

[0004]

However, a ratio of monochrome / color mixed documents is higher than that of a document containing only color originals, and in particular, a monochrome cover page is attached before a color original to be transmitted. The case is general. In such a case, it seems unnatural to transmit only the cover page before transmitting the color original document.

For the A version, A5, A4, A
For version 3 and B, transmission and reception of standard sizes such as B5 and B4 were performed, but for example, when the main scanning direction is 8
Transmission of 00 dots (100 mm) and 375 dots (100 mm) in the sub-scanning direction could not be performed.

When transmitting such an image, white is added to the 100 mm × 100 mm image to make it into an A5 size or the like, and the process of removing the white from the image received by the receiving side is performed. There was a drawback that it was not easy to use, such as necessary and long communication time.

It is an object of the present invention to provide a facsimile communication method capable of easily transmitting a mixed monochrome / color document and also easily transmitting an image other than a standard size.

[0008]

According to the first invention of the present application, in transmitting / receiving a mixed monochrome / color document, the original transmitted / received immediately before and the original to be transmitted / received next are monochrome.
When they differ in the meaning of color, a message end signal (hereinafter referred to as EOM / PPS-EOM) is sent and a mode change is performed so that the communication can be performed in one communication.

Further, according to the second invention of the present application, by arbitrarily setting the number of data in the main scanning direction and negotiating with the receiver using a non-standard function, an image of an arbitrary size can be transmitted and received. I made it possible.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the structure of a facsimile apparatus according to an embodiment of the present invention.

This facsimile apparatus includes a controller 1 for controlling a public line network, a modem 2 for modulating and demodulating digital signals and analog signals, a CPU 3 for controlling the entire facsimile apparatus, and an RO for storing a program.
An M4, a RAM 5 as a work area, an operation panel 6 for receiving an operation, a reading device 7 for reading a document, a recording device 8 for printing information on recording paper, and a telephone 9 for making a call. Is configured.

FIG. 2 shows N used in G3 facsimile communication.
It is explanatory drawing which shows the data structure of SF and NSS.

In the NSF 40, the bit 1 indicates that there is a data number negotiation function in the main scanning direction at the nth octet 41 in the FIF data.

In the NSS 43, bit 1 indicates the reception instruction in the main scanning direction data number negotiation function at the m-th octet 44 in the FIF data. Also,
The next two octets 45 and 46 represent the number of data.

FIG. 3 is a first diagram corresponding to claim 1 of the present invention.
It is a sequence diagram which shows the communication protocol of an Example. FIG. 5 is a flow chart showing the operation of the first embodiment. In the first embodiment, an example of transmitting one page of a color original after transmitting a cover page of a monochrome image will be described.

In FIG. 3 and FIG. 5, at the time of transmission, CNG is sent out at regular intervals after a call is made (S1) (S2, T1).
0) If an incoming call is detected (S3), the document (monochrome cover page) is transmitted (S4, T12) after negotiation with the receiver side (T11).

After this, there is a next original (color) (S
5) Since the mode is different from the previous document in terms of color and monochrome (S6), EOM / PPS-EO
M is sent (S7, T13).

Then, the receiver side confirms the reception preparation (CF
When R) is received (S8, T14), the process returns to S4 to perform negotiation for color document transmission (T1).
5) The color original for the second page is transmitted (S4) (T
16).

In this example, since there is no next original document (S9),
After the normal termination procedure, the communication is terminated (S10, T1).
7). In addition, in S2a, the T1
The communication ends (S10) when the time-out occurs or when the EOM / PPS-EOM transmission is tried three times without receiving the CFR in S8 (S8a).

The same applies to the case where the first page is color and the second page is monochrome, or when many color / monochrome originals are mixed.

FIG. 4 shows a second aspect of the present invention, which corresponds to claim 2.
It is a sequence diagram which shows the communication protocol of an Example. FIG. 6 is a flowchart showing the operation of the second embodiment. In the second embodiment, an example will be described in which an image having a length of 100 mm is transmitted / received with 800 dots (100 mm) in the main scanning direction, a normal resolution (3.75 dots / mm) in the sub-scanning direction.

FIG. 7 is an explanatory diagram showing the number of data in the main scanning direction stored on the RAM 5 in this embodiment.

The data 31 is a value used when the NSS indicates the number of data at the time of transmission, and indicates that the data 31 is held in the RAM 5. Further, the data 32 is a value used to hold the number of pieces of data in the main scanning direction designated by the transmitter at the time of reception in the RAM 5 for use in decoding processing and the like.

Next, the operation of the second embodiment will be described. The resolution in the main scanning direction is 8 dots / mm, the number of data is 800 dots (100 mm), and the resolution in the sub scanning direction is normal (3.75 dots / mm). ), A case of transmitting and receiving an image having a length of 100 mm will be described as an example.

First, such an image is created by reading the image by the reading unit 7, thinning out an existing document, or partially extracting it. The created data is R
It is stored in AM5. At the same time, the number of dots in the main scanning direction of the image is stored in the main scanning direction transmission data number 31 secured on the RAM 5.

When transmitting the image, if it is a monochrome image, it is compressed into MH, MR, MMR or the like. Further, if it is a color image, it is compressed into JPEG, but in the case of JPEG, the number of data in the main scanning direction needs to be a multiple of 8.

4 and 6, at the time of transmission, CNG is sent out at a constant interval after the call is made (S21) (S22, T).
20) If an incoming call is detected (S23), the non-standard function (NSF) sent by the receiver (T21) causes bit 1 of the nth octet 41 shown in the NSF data 40 of FIG.
Is set to 1 (recognizing that there is a data number negotiation function in the main scanning direction) (S24), bit 1 of the m-th octet 44 in the non-standard function setting (NSS) (T22).
Is set to 1 (receipt of any number of data in the main scanning direction is instructed).

In order to indicate the number of transmission data in the main scanning direction by NSS, in the (m + 1) th and (m + 2) th octets 45 and 46,
Number of main scan direction transmission data stored in RAM 5 31
(800 dots) is set (S25).

The resolution in the sub-scanning direction (normal) is instructed as usual by a digital command signal (DCS) (S25,
T23). CF on the receiver side after sending the reception instruction command
When R is received (S26, T24), the image is transmitted (S27, T25). After sending the image, normal T.S. According to the procedure of 30, the communication is ended (S28, T
26). In addition, if there is no incoming call detection in S23, S22a
The communication ends (S10) when T1 times out in step S3 or when the instruction in step S25 is tried three times without receiving the CFR in step S26 (S26a).

On the other hand, since the receiver uses the number of data in the main scanning direction designated by the NSS for decoding processing, the RA
The number of received data in the main scanning direction on M5 is held at 32.

In this way, images of sizes other than the standard size can be transmitted and received.

[0032]

As described above, according to the first invention of the present application, it is possible to perform the facsimile communication of the mixed monochrome / color document which is easy to use.

Further, according to the second invention of the present application, an image of an arbitrary size can be transmitted / received, and it is possible to shorten the communication time and perform facsimile communication which is easy to use in image handling.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

[FIG. 2] NSF and NSS used in G3 facsimile communication
It is explanatory drawing which shows the data structure of.

FIG. 3 is a sequence diagram showing a communication protocol according to the first embodiment of this invention.

FIG. 4 is a flowchart showing a communication operation of the first embodiment.

FIG. 5 is a sequence diagram showing a communication protocol of the second embodiment of the present invention.

FIG. 6 is a flowchart showing a communication operation of the second embodiment.

FIG. 7 is an explanatory diagram showing the number of data in the main scanning direction stored in the RAM in the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Control device, 2 ... Modem, 3 ... CPU, 4 ... ROM, 5 ... RAM, 6 ... Operation panel, 7 ... Read device, 8 ... Recording device, 9 ... Telephone.

Claims (3)

[Claims] 1. A facsimile communication method having a function of performing color facsimile communication, wherein in a multi-page transmission in which a monochrome original and a color original are mixed, the original sent first and the original sent next are in color. A facsimile communication method characterized by performing a mode change after sending a message end signal when the difference is monochrome. 2. A communication method having a function of performing facsimile communication, wherein at the time of transmission, the number of data in the main scanning direction is arbitrarily set, the number of data is negotiated with a receiving side device, and the data in the main scanning direction is set. A facsimile communication method, wherein an image of an arbitrary size is transmitted by transmitting the number by the number of negotiated data. 3. A facsimile communication method according to claim 1, wherein communication between G3 facsimile machines is performed using a non-standard function of ITU-T.