JPH0698138A - Simultaneous communication control system for facsimile equipment - Google Patents

Abstract

PURPOSE:To provide the facsimile equipment provided with a simultaneous communication function for enabling retransmission only to a non-arrival receiving station corresponding to a received image confirm response. CONSTITUTION:This equipment is provided with a simultaneous communication control part 21 for controlling simultaneous communication by receiving a received image confirm response signal showing normal reception at the time of simultaneous communication from a line control line 23 and a memory part 22 for recording/managing the presence/absence of this received image confirm response signal for each reception side facsimile equipment and storing simultaneous transmitted image data. Thus, the retransmission is performed only to the non-arrival receiving station having no received image confirm response signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile device having a simultaneous (broadcast) communication function for transmitting the same image data to a plurality of receiving side facsimile devices.

[0002]

2. Description of the Related Art FIG. 10 is an overall block diagram showing an electric system of a conventional facsimile machine shown in, for example, "Service Manual MELFAS900 Series Supplement (FA-960 / 970/980)" issued by Mitsubishi Electric Corporation. is there. In the figure, 1 is a CPU that controls the entire facsimile apparatus, 2 is a CPU peripheral circuit, 3 is a communication control modem, 4 is a reading control unit that controls reading of originals, and 5 is recording control that controls recording of received image data. 6 is a compression / expansion circuit (BC / BE) unit that compresses transmission image data and expands reception image data, 7 is a line control circuit (NCU) unit, 8
Is an operation panel control unit, 9 is a mechanical control switch unit, 10 is a thermal head for recording thermal paper, 11 is an image sensor for reading an original, 12 is a telephone line, and 13 is a CPU bus.

Next, the operation will be described. In FIG. 10, at the time of transmission, the facsimile transmission start signal instructed by the operation panel control unit 8 is notified to the CPU 1 via the CPU bus 13. In response to the facsimile transmission start signal, the CPU 1 instructs the reading control unit 4 to start reading an original by the image sensor 11 and compress the read data by the compression / expansion circuit (BC / BE) unit 6. Activate. The image data of the original read by the reading control unit 4 is compressed / expanded by a compression / expansion circuit (B) via the CPU bus 13.
After being compressed by the C / BE) unit 6, it is sent from the modem 3 to the line control circuit (NCU) unit 7. Line control circuit (N
The CU) unit 7 sends the image data to the receiving side facsimile apparatus through the telephone line 12. Further, at the time of reception, the image data received from the telephone line 12 is sent from the line control circuit (NCU) unit 7 through the modem 3 to the compression / expansion circuit (BC / BE) unit 6 through the CPU bus 13. The compression / expansion circuit (BC / BE) unit 6 expands the image data received from the modem 3 and sends it to the recording control unit 5. Recording control unit 5
Print data is sent to the thermal head 10 and printed on the thermal recording paper. On the other hand, when performing the simultaneous transmission, the image data is processed in the facsimile apparatus according to the above-described transmission procedure, and the communication sequence is such that the image data PIX is normal in the receiving side facsimile apparatuses R1 to Rn as shown in the simultaneous communication protocol of FIG. Irrespective of whether or not it has been received by the receiving side facsimile apparatus R1 to the receiving side facsimile apparatus R1.
It is transmitted to Rn in a broadcast format. FIG. 12 is a flowchart of the basic procedure at the time of simultaneous transmission, and the simultaneous transmission process (step S121) as described above is performed to complete the simultaneous transmission.

[0004]

Since the conventional facsimile apparatus is configured as described above, when the read image data of the original is simultaneously transmitted, once the transmission is completed, the image data recording of the receiving side facsimile apparatus is performed. Even if the transmission is not completed normally, the confirmation reception response of the received image cannot be made from the facsimile device on the broadcast receiving side to the facsimile device on the broadcasting side, and the retransmission request cannot be made, so that reliable broadcast transmission is impossible.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to retransmit only to undelivered receiving stations by a confirmation response from the receiving side facsimile apparatus to the simultaneous transmitting side facsimile apparatus. An object is to obtain a facsimile device having a communication function.

[0006]

SUMMARY OF THE INVENTION A facsimile device broadcast communication control system according to the present invention stores broadcast broadcast image data, and at the same time receives an image reception confirmation response signal from a receiving facsimile device indicating normal reception during broadcast communication. The memory unit for recording and managing the presence / absence information of each reception side facsimile device, and the presence / absence information of the response signal recorded in the memory unit in response to the image reception confirmation response signal from each reception side facsimile device. And a broadcast communication control unit for retransmitting the broadcast image data stored in the memory unit to the receiving side facsimile apparatus having no image reception confirmation response signal based on the presence / absence information.

Further, a facsimile communication control system according to another invention of the present invention stores broadcast transmission image data and transmits an image reception confirmation response signal from a reception side facsimile device indicating normal reception during broadcast communication. A memory unit for recording and managing presence / absence information, necessity / unnecessity of resending, and a necessary number of times of resending for each receiving side facsimile apparatus, and a memory section for receiving an image reception confirmation response signal from each receiving side facsimile apparatus The presence / absence information of the recorded response signal is set to "yes", and there is no image reception confirmation response signal to the receiving side facsimile device that needs to be retransmitted, based on the presence / absence information, the retransmission necessity information and the number of times of retransmission. In the meantime, a broadcast communication control unit that retransmits the broadcast image data stored in the memory unit for the required number of retransmissions is provided.

[0008]

In the present invention, the presence or absence of the image reception confirmation response signal after completion of the simultaneous transmission in the newly provided memory section, and
It is possible to store the broadcast image data and automatically retransmit the broadcast data only to the receiving station that does not receive the image reception confirmation response signal.

In addition, in another invention of the present invention, retransmission necessity information and the number of times retransmission is required are further added to the memory unit so that any reception station that requires retransmission can receive any information while there is no image reception confirmation response signal. You can retransmit as many times as necessary,
It is possible to control the resending procedure with a degree of freedom.

[0010]

EXAMPLES Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall block diagram showing an electric system of a facsimile apparatus according to an embodiment of the present invention. In the figure, 1 is a CPU, 2 is a CPU peripheral circuit, 3 is a communication control modem, 4 is a reading control unit, 5 Is a recording control unit, 6 is a compression / expansion circuit (BC / BE) unit, 7 is a line control circuit (NCU) unit, 8 is an operation panel control unit, 9 is a switch unit for mechanical control, and 10 is thermal paper recording. Is a thermal head, 11 is an image sensor for reading an original, 12 is a telephone line, and 13 is a CPU bus, which are the same as conventional ones. On the other hand, reference numeral 21 denotes a broadcast communication control unit for controlling control information related to broadcast communication image reception confirmation response, broadcast image data, and the like, and reference numeral 22 indicates presence / absence information of broadcast communication image reception confirmation response and broadcast image. A memory unit 23 for storing data and the like is a line control line for the image reception confirmation response signal of the above-mentioned simultaneous communication.

Next, the operation will be described. When transmitting the simultaneous communication, first, the facsimile simultaneous transmission start signal instructed by the operation panel control unit 8 is notified to the CPU 1 via the CPU bus 13. Upon receiving the facsimile simultaneous transmission start signal, the CPU 1 instructs the reading control unit 4 to start reading the original document by the image sensor 11 and to perform compression / compression.
Each instruction of the compression processing of the read data by the decompression circuit (BC / BE) unit 6 is activated. The broadcast image data of the original read by the reading control unit 4 is compressed by the compression / expansion circuit (BC / BE) unit 6 via the CPU bus 13 and then stored in the memory unit 22. Then, the compressed broadcast image data stored in the memory unit 22 is transmitted to the CPU 1 after the operation panel control unit 8 notifies the CPU 1 of the information data of the destination telephone number of the n station to be transmitted. It is again edited and stored in the memory unit 22 in the data format as shown in FIG. 2 together with the confirmation response flag indicating the presence or absence of the image reception confirmation response signal at the time of reception. Here, each telephone number N0.
1-No. 1-bit data A1 added after .n
An is a confirmation response flag indicating the presence or absence of an image reception confirmation response signal at the time of simultaneous reception. "0" indicates no response and "1" indicates response.

Further, when the start button on the operation panel control section 8 is pressed, the broadcast image data in the memory section 22 is broadcasted in accordance with the communication protocol as shown in FIG. 3, as shown in FIG. Similarly, it is determined whether or not there is an image reception confirmation response signal from each receiving station, and the memory unit 2
After setting the acknowledgment flag of 2, the station with no response is 1
If the station also has it, it enters into the retransmission procedure (step S43 → S4).
4). As shown in FIG. 5, the procedure for retransmitting the simultaneous command is as follows.
The broadcast command is turned off only for the stations that have received a response from the receiving stations on the memory unit 22 (step S51), and the broadcast is performed again (step S52). After the simultaneous transmission is completed, the presence or absence of the image reception confirmation response of the receiving station is determined again (step S53), and the simultaneous command is turned off only for the stations having the response (step S54). Similarly, the simultaneous command is continued to the remaining receiving stations having no image reception confirmation response, and the retransmission is repeated until the loop (LOOP) count reaches the fixed number N (steps S55 → S5).
6) Turn off the broadcast command to all receiving stations after the end of retransmission,
Broadcast image data and the like stored in the memory unit 22 are deleted. 6 and 7 show the flowcharts of the subroutines for turning on and off the simultaneous command.

Example 2. In the above embodiment, only the confirmation response flag indicating the presence / absence of the image reception confirmation response is added to each telephone number of the receiving station, and the uniform retransmission is performed to the receiving station having no image reception confirmation response. As shown in FIG. 8, a flag Bx indicating whether retransmission is necessary and an information bit group Cx (C7 to C1) for arbitrarily designating the number of retransmissions are further added to the memory unit 22, thereby giving a degree of freedom to the retransmission procedure. It can be held and controlled. FIG. 9 shows a flowchart of the main processing by the simultaneous communication control unit 21 at this time.
That is, it is determined in step S91 based on the confirmation response flag Ax whether or not there is an image reception confirmation response, and if there is an image reception confirmation response from all the receiving stations, the subsequent processing is not performed, and the receiving station that has no response. If there is even one, the process proceeds to the next step S92 and the simultaneous command is once turned off. Next, step S93.
Then, it is determined whether or not the retransmission is necessary based on the retransmission necessity flag Bx of the undelivered receiving station. If all of them do not require retransmission, the subsequent processing is not performed, and there is at least one receiving station that needs retransmission. For example, the process proceeds to the next step S94 to read the value of the number of retransmissions Cx of the corresponding receiving station. The read retransmission count Cx is set to the next step S9.
5, if all Cx are 0, the subsequent processing is not performed, and if there is a receiving station with Cx ≠ 0, the next step S96.
Proceed to. In step S96, the receiving stations remaining in the above determination,
That is, the broadcast command is turned on only for the receiving stations that have no image reception confirmation response, need retransmission, and have the number of retransmissions not 0, and proceed to step S97 to perform broadcast transmission processing. It should be noted that the number of retransmissions Cx is updated and decremented by 1 each time one retransmission is performed.

[0014]

As described above, according to the present invention, in the facsimile apparatus having the simultaneous communication function, the simultaneous transmission image data is stored and the image from the receiving side facsimile apparatus indicating the normal reception during the simultaneous communication is received. A memory unit for recording and managing information on the presence / absence of a confirmation response signal for each receiving-side facsimile device, and the presence / absence of the response signal recorded in the above-mentioned memory unit upon receiving an image-receiving confirmation response signal from each receiving-side facsimile device. In addition to setting the information to be present, the broadcast control unit for retransmitting the broadcast image data stored in the memory unit to the receiving side facsimile apparatus having no image reception confirmation response signal based on the presence / absence information is provided. The effect is that the broadcast transmission can be retransmitted only to the non-delivery receiving station that could not normally receive the broadcast image data.

According to another aspect of the present invention, it is necessary to store the broadcast image data, and to determine whether or not the image reception confirmation response signal from the receiving side facsimile device indicating the normal reception during the broadcast communication and the resend information are required. A memory unit for recording and managing the presence / absence information and the required number of times of retransmission for each receiving side facsimile device, and a response signal recorded in the memory unit in response to an image reception confirmation response signal from each receiving side facsimile device. The presence / absence information is set to “Yes”, and based on the presence / absence information, the presence / absence information of the necessity of retransmission, and the necessary number of times of retransmission, only the required number of times of retransmission are stored in the receiving side facsimile apparatus which does not need an image reception confirmation response signal. Since it has a broadcast communication control unit that retransmits the broadcast image data stored in the unit,
In addition to the effects similar to those described above, there is an effect that control can be performed with flexibility in the procedure of retransmission.

[Brief description of drawings]

FIG. 1 is an overall block diagram showing an electric system of a facsimile apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram showing a data structure for simultaneous communication retransmission in a memory unit according to an embodiment of the present invention.

FIG. 3 is a diagram showing a communication protocol of an image reception confirmation response according to an embodiment of the present invention.

FIG. 4 is a main flowchart of a broadcast (transmission) retransmission procedure according to an embodiment of the present invention.

FIG. 5 is a flowchart of a subroutine for simultaneous broadcast retransmission according to an embodiment of the present invention.

FIG. 6 is a flowchart of a subroutine for turning on a simultaneous command according to an embodiment of the present invention.

FIG. 7 is a flowchart of a subroutine for turning off a simultaneous command according to an embodiment of the present invention.

FIG. 8 is a diagram showing a main part of a data structure for simultaneous communication retransmission in a memory unit according to another embodiment of the present invention.

FIG. 9 is a flowchart of a main process in another embodiment of the present invention.

FIG. 10 is an overall block diagram showing an electric system of a conventional facsimile apparatus.

FIG. 11 is a diagram showing a conventional simultaneous communication protocol.

FIG. 12 is a main flowchart of conventional simultaneous communication (transmission).

[Explanation of symbols]

 1 CPU 2 CPU peripheral circuit 3 Modem 4 Reading control unit 5 Recording control unit 6 Compression / expansion circuit (BC / BE) unit 7 Line control circuit (NCU) unit 8 Operation panel control unit 9 Switch unit 10 Thermal head 11 Image sensor 12 Telephone line 13 CPU bus 21 Broadcast control unit 22 Memory unit 23 Line control line

Claims (2)

[Claims] 1. A facsimile device having a broadcast communication function for transmitting the same image data to a plurality of receiving facsimile devices, while storing the broadcast image data,
A memory unit for recording and managing information on the presence / absence of an image reception confirmation response signal from the reception side facsimile device indicating normal reception during simultaneous communication, and an image reception confirmation response from each reception side facsimile device In response to the signal, the presence / absence information of the response signal recorded in the memory section is set to "yes", and based on this presence / absence information, the broadcast data stored in the memory section is sent to the receiving side facsimile apparatus having no image reception confirmation response signal. A broadcast communication control method for a facsimile apparatus, comprising: a broadcast communication control unit for retransmitting transmitted image data. 2. A facsimile device having a broadcast communication function for transmitting the same image data to a plurality of receiving side facsimile devices, while storing the broadcast image data,
A memory unit for recording and managing the presence / absence information of the image reception confirmation response signal from the receiving side facsimile device indicating the normal reception during the simultaneous communication, the presence / absence information of the necessity of retransmission, and the necessary number of times of retransmission for each receiving side facsimile device. The presence / absence information of the response signal recorded in the memory unit in response to the image reception confirmation response signal from each receiving side facsimile device is set to Yes, and the presence / absence information, the necessity information for retransmission and the necessary number of times of retransmission are set. On the basis of the above, there is provided a broadcast communication control unit that retransmits the broadcast image data stored in the memory unit for the required number of retransmissions while there is no image reception confirmation response signal for the receiving side facsimile apparatus that needs retransmission. Simultaneous communication control method for facsimile machines.