JPH07154567A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To obtain the facsimile equipment reducing the communication time by allowing the equipment to transit to a succeeding phase C immediately when a specific command possibly sent from a receiver side cannot be received. CONSTITUTION:A control section 3 of a facsimile equipment of a sender side prepares,the reception of a 300bps command possibly sent from a receiver between a phase C in the G3 mode of transmission to the receiver side and a succeeding phase C. Then the control section 3 discriminates whether or not the 300bps command is received and transits to the succeeding phase C when the 300bps command is not received within a predetermined time and a communication control section 4 sends picture data of a succeeding original read by a read scanning section 1 to the receiver side. Thus, a phase D executed between phases C is reduced to be a predetermined time and the communication time is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine, and more particularly to a facsimile communication procedure based on the G3 mode, which has a unique mode.

[0002]

2. Description of the Related Art When a conventional facsimile machine transmits a plurality of originals to a facsimile machine on the other side by using the G3 mode, the standard functions (data signal speed, vertical resolution, etc.) of each original to be transmitted are changed. Even if it does not exist, the phase D procedure as shown in FIG. 7 is always performed between the phase C for transmitting the image data obtained by reading the original and the phase C for transmitting the image data of the next original. . Therefore, if the document is transmitted by the conventional facsimile apparatus in the G3 mode as described above, even if a plurality of documents having the same standard function are transmitted, the procedure of phase D must be performed between phase C as shown in FIG. I was doing. Since the time for executing the procedure of this phase D increases in proportion to the number of originals to be transmitted, there is a drawback that the communication time is extended and the line usage amount is increased accordingly. For example, in a conventional facsimile apparatus, since the above phase D takes about 3 seconds, for example, the original 1
When 0 sheets are transmitted, the total time required for Phase D becomes about 30 seconds, and especially in the case of long-distance transmission etc., there is a drawback that the extra line charge is considerably high.

[0003]

As described above, when a plurality of originals are transmitted to the receiving side in the G3 mode by the conventional facsimile apparatus, the phase C and the phase C for transmitting the image data corresponding to the contents of each original are included. Even if there is no change in the standard functions of the manuscript during the period, the configuration is such that the phase D procedure is always performed, so when sending multiple manuscripts, the communication time becomes longer and the line charge increases. There was a drawback that it would end up.

Therefore, an object of the present invention is to eliminate the above-mentioned drawbacks and to provide a facsimile apparatus capable of shortening the communication time by shortening the phase D procedure.

[0005]

According to the present invention, in a facsimile apparatus capable of communicating in a G3 mode, between the phase C and the next phase C in the G3 mode for transmitting image data to the facsimile apparatus on the receiving side. , 300 that may be sent from the receiving facsimile machine
receiving means for receiving a bps command for a predetermined time,
If the receiving means does not receive a 300 bps command within the predetermined time, the receiving means further comprises a communication procedure controlling means for immediately shifting to the next phase C, and the communication procedure controlling means means negative retraining by the receiving means. When the RTN 300 bps command is received, it is configured to shift to the phase B in the G3 mode for resetting the standard function.

[0006]

In the facsimile apparatus of the present invention, the receiving means of the transmitting facsimile apparatus sends the image data to the receiving facsimile apparatus between the phase C in the G3 mode and the next phase C from the receiving facsimile apparatus. The reception of the 300 bps command that may be transmitted is executed for a predetermined time. The communication procedure control means immediately shifts to the next phase C if the receiving means does not receive the 300 bps command within the predetermined time. Therefore, the phase D executed between the phase C and the phase C can be shortened to the predetermined time. Further, the communication procedure control means receives the RTN 300 bp by the receiving means.
When the s command is received, the process shifts to the phase B in the G3 mode for resetting the standard function. Therefore, even if the image quality of the received image data is poor on the receiving side, the communication speed in the phase B is increased. Etc. can be reset so that the above-mentioned poor image quality does not occur from the transmission of the next image data. Even if the phase D is shortened as described above, communication will not be hindered. I have to.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the facsimile apparatus of the present invention. Reference numeral 1 is a reading / scanning section for reading an original, 2 is a recording / scanning section for printing image data of a received original on a recording sheet, 3 is a control section for performing facsimile communication control, 4 is incoming / outgoing call, transmission / reception of image data, etc. It is a communication control unit that performs the operation, and includes a modem 41 and an NCU 42. Reference numeral 5 is a key operation unit through which an operator inputs data and commands to the apparatus, 6 is a memory for storing various data and programs necessary for the control unit 3 to operate, and 7 is an NCU 4
2 is a telephone line connected to.

Next, the operation of this embodiment will be described. When transmitting an original with the apparatus shown in FIG. 1, after the operator sets the original to be read on the scanning unit 1 and inputs the telephone number information of the destination from the key operation unit 5, the control unit 3 causes the key operation unit 5 to operate. The telephone number information of the destination input from is given to the communication control unit 4, and the NCU 42 of the communication control unit 4 sends a dial signal corresponding to the telephone number information to the telephone line 7 to make a call. As a result, the facsimile machine on the receiving side responds and, for example, as shown in FIG.
When (non-standard function), CSI (callee identification), and DIS signal (digital identification signal) are returned, the control unit 3 transmits the TCF (training check) from the communication control unit 4 to the receiving side. CFR (reception preparation confirmation) from the receiving side
Will be sent. As a result, when the phase B shown in FIG. 4A is completed, the control unit 3 encodes the image data of the first original read by the reading scanning unit 1 and then the encoded image data is transferred to the modem of the communication control unit 4. Send to 41. The modem 41 modulates the coded image data that is input to the NCU 42.
To the facsimile machine on the receiving side. This is Figure 4
In Phase C shown in (b) of PIX (image data)
Is modulated image data.

After the end of the phase C as described above, the control unit 3 of the facsimile apparatus on the transmission side performs the processing shown in FIG. The control unit 3 determines in step 201 whether or not the unique mode is set. If not set, the process proceeds to normal protocol processing, and if the unique mode is set, the process proceeds to step 202. However, in the setting of the unique mode, the NSF transmitted from the receiving side of FIG. 4 or FIG. 5 is checked, and when the receiving side has the unique mode of this example, the control unit 3 sets the device of FIG. At the same time, it is set in the facsimile machine on the receiving side by NSS. In step 202, the control unit 3 determines whether or not there is a document to be transmitted next.

In step 203, the control unit 3 is arranged to receive 300 bps that may be transmitted from the receiving side, and as a result, it is determined in step 204 whether or not 300 bps has been received. Step two
If it is received, the process proceeds to step 205.
When the process proceeds to step 205, the control unit 3 receives the RTN command of 300 bps as shown in (a) of FIG. 5 and then executes the phase B shown in (b) of FIG.
The transmission / reception processing relating to the above is performed, and the process proceeds to the phase C procedure shown in FIG. 5C, and the image data of the next original is transmitted to the receiving side.

On the other hand, if the process proceeds to step 206, the control unit 3 determines whether or not a predetermined time has passed. If not, the process returns to step 203. If the time has passed, the process goes to (d) of FIG. 4, for example. The procedure shifts to the phase C procedure shown, and the image data of the next original is transmitted to the receiving side. That is, in this example, as shown in FIG.
As shown in (1) of FIG. 5, the period corresponding to the conventional phase D is limited to the reception period of 300 bps of Nm seconds, and the MPS (multi-page signal) transmission and the RTN performed in the conventional phase D are performed as shown in FIG. Has been omitted,
Phase D has been significantly shortened. The time measured by the control unit 3 in step 206, that is, the reception waiting time of 300 bps in step 203 is, as shown in (2) of FIG. 4 or FIG.
Send F (training check) and C from the receiving side
It shall be decided by the control unit 3 based on the time until the FR (reception preparation confirmation) is received.

Here, the facsimile apparatus on the transmission side performs steps 201 to 201 in the processing shown in FIG.
When the process proceeds from step 204 to step C through step 206, the facsimile machines on the transmission side and the reception side perform transmission / reception of image data in accordance with the communication procedure shown in FIG. Particularly, as shown in FIG. 6 or FIG. 7, the conventional phase D between the phase C and the phase C is shortened to the time for the transmission side to receive 300 bps of Nm seconds executed in step 203. As shown in (b), (d), and (f), it is possible to move to the next phase C in a short time.
The overall communication time is shortened.

However, in the processing shown in FIG.
Phase C from 01 to 204 through step 205
The communication procedure of the facsimile apparatus on the transmitting side and the facsimile apparatus on the receiving side in the case of proceeding to step is as shown in FIG. Especially step 203
At 300mbps reception of Nm second was executed at this time,
When the RTN is received from the receiving side, the process shifts to phase B as shown in (c) of FIG. In this phase B, the training signal is sent again from the sending side facsimile device to the receiving side, and the sending speed is set again, so that the image quality of the received document on the receiving side becomes poor at the time of sending the image data from the next time. Since such a situation is avoided, even if the phase D is shortened as described above, communication will not be hindered.

While the facsimile apparatus on the transmitting side is performing the processing shown in the flowchart of FIG. 2, the facsimile apparatus on the receiving side is performing the processing shown in the flowchart of FIG. Here, for the sake of convenience, assuming that the device shown in FIG. 1 is the receiving side, the control unit 3 determines in step 301 whether or not the unique mode is set, and if the unique mode is not set, it is normal. Move to the protocol processing of. When the unique mode is set, the control unit 3 determines whether or not the image quality of the image data received in step 302 is defective. If not, step 304
If it is defective, the process proceeds to step 303. In step 303, the control unit 3 transmits the RTN 300 bps command to the transmitting side facsimile apparatus as shown in FIG. 300 bps for NSS, TSI, DCS and TCF as shown in 5 (b)
A command reception process is performed, and the process proceeds to step 304. In step 304, the control unit 3 receives a signal from the transmitting side facsimile apparatus, determines in step 305 whether or not the received signal is DCN, and if it is DCN, shifts to end processing and is not DCN. If step 30
Go to 6. The control unit 3 determines in step 306 whether or not the received signal is image data. If the image data is not received, the process proceeds to error processing. If the image data is received, the image data of the next original is received. Phase C
Move to.

Here, the facsimile apparatus on the receiving side performs steps 301 and 3 of the processing shown in FIG.
When the process proceeds to Phase C through 02, 304, 305, and 306, the facsimile machines on the transmission side and the reception side are shown in FIG.
Image data is transmitted and received by the communication procedure shown in FIG. Therefore, in the phase C at this time, for example, the image data shown in FIG. 4D is received. When the process of step 303 is performed, the facsimile devices on the transmitting side and the receiving side transmit / receive image data in the communication procedure shown in FIG. Therefore, the phase C at this time is, for example, (C) in FIG.
The image data indicated by is received.

Incidentally, FIG. 6 shows that the above-mentioned three originals are printed in the conventional G
It is the figure shown for the comparison of this example with the example of the communication procedure performed by the sending side and the receiving side facsimile machine at the time of transmitting in 3 modes, and phase D is always performed between each phase C. Therefore, it can be seen that the communication time is longer than that in the example of FIG. 4 of this example.

According to the present embodiment, between the phase C and the phase C, the facsimile apparatus on the transmission side transmits Nm seconds for 30 seconds.
The next phase C, just by preparing to receive 0 bps
Phase D performed between Phase C and Phase C can be significantly shortened, and the communication time can be shortened by this amount, and the line usage fee can be reduced. . Especially, when the number of transmitted documents is large, the above effect becomes remarkable. When the reception of the Nbps of 300 bps is performed and the RTN is received from the receiving side at this time, the process shifts to the phase B as shown in (b) of FIG. 5 and the training signal is received again. It is possible to avoid the situation where the image quality of the received document on the receiving side becomes poor at the time of the next transmission of image data by sending the image to the other side and resetting the transmission speed. Even if the phase D is shortened, smooth facsimile communication can be performed without any trouble.

[0018]

As described above, according to the facsimile apparatus of the present invention, it is possible to shorten the phase D procedure and shorten the communication time.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a facsimile apparatus of the present invention.

FIG. 2 is a flowchart showing processing performed at the end of phase C when the device shown in FIG. 1 is a transmitting side.

FIG. 3 is a flowchart showing processing performed at the end of phase C when the device shown in FIG. 1 is a receiving side.

FIG. 4 is a diagram showing an example of a communication procedure executed between a facsimile device on the transmission side and a facsimile device on the reception side when the number of transmission originals is three.

FIG. 5 is a diagram showing another example of a communication procedure executed between the facsimile machines on the transmission side and the reception side when the number of transmission originals is three.

FIG. 6 is a diagram showing an example of a conventional communication procedure executed between a transmitting side facsimile device and a receiving side facsimile device when the number of transmitted originals is three.

FIG. 7 is a diagram showing an example of a conventional communication procedure in a G3 mode executed between a transmitting side facsimile and a receiving side facsimile.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Reading scanning unit 2 ... Recording scanning unit 3 ... Control unit 4 ... Communication control unit 5 ... Key operation unit 6 ... Memory 7 ... Telephone line

Claims (3)

[Claims] 1. A facsimile apparatus capable of performing communication in a G3 mode, wherein image data is transmitted from a receiving side facsimile apparatus between phase C in the G3 mode and the next phase C in which the image data is transmitted to the receiving side facsimile apparatus. And a communication procedure control means for immediately shifting to the next phase C if the reception means does not receive the 300 bps command within the predetermined time. A facsimile machine characterized by the above. 2. The communication procedure control means is an RTN 300b meaning no retraining by the receiving means.
2. The facsimile apparatus according to claim 1, wherein when a ps command is received, the process shifts to phase B in the G3 mode for resetting the standard function. 3. A facsimile machine on the transmitting side receives a TCF indicating a training check in the G3 mode from a facsimile machine on the receiving side for a predetermined period of time during which the receiving means executes reception of a 300 bps command. The method according to claim 1, wherein the determination is made based on a time until a CFR which means a preparation confirmation is received.
Alternatively, the facsimile apparatus according to item 2.