JPS61148942A - Communication control equipment - Google Patents

Abstract

PURPOSE:To contribute to constitution of a communication system without waste with simple constitution by providing separately reception means when control information is a PB signal and a reception means when the control information is a signal of a communication means different from the PB signal. CONSTITUTION:A communication control equipment 3 consists of the 1st reception means 4, the 2nd reception means 5 and a call means 6. The 1st line group 1(CH1-CHn) used when the control information transmitted from a facsimile equipment FX to an FX storage exchange is a PB signal, and the 2nd line group 2(CHn+1-CHn+m) used when the control information transmitted from the FX equipment to the FX storage exchange is a signal in a communication means different from the PB signal are connected to the device 3. The calling means 6 are connected to the line groups 1 and 2 and acts like acquiring alternately an idle line of the line groups 1 and 2 at the calling from the FX storage exchange to the FX equipment.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention provides 1, for example, when transmitting image information from a facsimile device to a 71 facsimile storage and forwarding device, control information such as routing destination information and transmission time of this image information. The present invention relates to a communication control device suitable for a system that communicates information associated with the image information.

[Technical background of the invention and its problems]

As a method for attaching control information to main information such as one-stroke information as described above, the following two methods are used in facsimile communication.
The street stuff is known.

One of them is to communicate control information using a %PB signal (push button signal) as shown in Figure 5. -This is possible by performing the following operations.That is, as shown in Fig. 5, the second step is to call and respond to the other party's device using the telephone, and the second step is to send the PB damage signal and control information. The information communication procedure consists of step (2) in which 300 baud control signals and image information at a predetermined speed are communicated.

The other one is the fax i9 as shown in Figure 6.
Control information is included in the N8F signal and NSS signal of the communication procedure for communication. In this method, the information communication procedure consists of a first step in which the other party's device is called and answered by a telephone, and a second step in which control signals at 300 baud and visual insults at a predetermined speed are communicated.

Conventionally, two types of communication control devices have been known that can handle only the respective signals, taking into account the above-mentioned two-way communication method. However, these communication control devices are inconvenient because they can only receive control information using 10,000 methods.

Therefore, a communication control device 100 as shown in FIG. 7 was devised. Communication control device 100: has one line 1018.10
1,,101. , . . . , 101n are connected, and communication with a terminal (not shown) is possible. A signal sent from the terminal is received by the receiving section 102 and sent to a center (not shown). Further, 103 indicates a line control unit.

This line control unit 103 has functions such as capturing a vacant line and transmitting various signals when a call is made from the center to a terminal.

In such a communication control device 10G, the line 101
,,101. ．． 101$, Is the control information sent from the foam end via -1101n based on the FB scratch signal?J'
It is unclear whether the signal is in a communication procedure different from the B signal.

Therefore, the receiving unit 102k has a function of determining for each line whether the PB defect signal is received or the FB defect signal is a signal within a different communication procedure, and the function of receiving each signal. It was necessary. For this reason, the disadvantage is that the circuit configuration of the receiving section 102 is complicated and large-scale. Moreover, in recent years, the receiving section 102 has been constructed of an i-electronic radiator, which has the disadvantage that its program is complex and enormous.Furthermore, in the communication control device 100, There are no restrictions on incoming calls.

Line 101, 101 . , 101
．． , -1101n, so long as the line is free, calls can be received. Therefore, the frequency of use of the lines was uneven, and the lines could not be used evenly. Also, when calling from the center to a terminal using the line control unit 103 Vc, there is no restriction on seizing an empty line.
In general, there was a tendency for lines with younger line numbers to be captured, which exacerbated the above-mentioned imbalance in the frequency of line use.

[Purpose of the invention]

The present invention has been made in view of the drawbacks of the conventional communication control device as described above, and its purpose is to have a simple configuration, and even if control information includes a PB defect signal, communication procedures different from that of the PB defect signal can be achieved. It is an object of the present invention to provide a communication control device that can accurately receive even one signal within the network, equalize the frequency of use of lines, and contribute to the construction of an efficient communication system.

[Summary of the invention]

Therefore, in the present invention, a receiving means when the control information is an FB defect signal and a receiving means when the control information is a PB defect signal is a signal in a different communication procedure are provided separately, and the respective receiving means are provided separately. A line group is independently connected to the receiving means to separate the incoming routes of the two signals, and when a call is made, the line group for FB signals and the empty line of other line groups are used alternately. Thus, the above objectives have been achieved.

[Embodiments of the invention]

The present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram of one embodiment of the present invention.

In the figure, 3 indicates a communication control device. The communication control device 3 includes a first receiving means 4, a second receiving means 5, and a calling means 6. The communication control device 3 includes a first line group 1 (lines CHI, CH2, . . . ...,
CHn) and a second group of lines used when the control information sent from the 7y Kushimi device to the 71 Kushimi store and forward device is a PB signal in a different communication procedure - here, a 300 baud control signal. 2 (line (: Hn
+ 1°CHn + 2, -1CHn 10 m) are connected. In the figure, in addition to the first line group 1 and the second line group 2 shown on the left side, lines CHn and C
Hn +m, -1CHI is shown on the right.

The lines shown on the right side make it easy to see when the line is captured when making a call (this is shown for illustrative purposes only, and does not indicate lines other than the first line group 1 and the second line group 2). ◎ Furthermore, the 10 lines in the first line group and the 20 lines in the second line group use the representative selection method. If signals are used, it is possible to make a call using one type of dial number assigned to the first line group ICIIJ!Also, when calling the facsimile storage and forwarding device from the facsimile machine, 300 is added to the control information.
If the baud control signal is used, the second line group 2
It is possible to make a call using one type of dial number assigned to .

When a call arrives on the first line group IK, the first receiving means 4 receives the signal and sends the signal to the facsimile storage and forwarding device. When a call arrives on the second line group 2, the second receiving means 5 receives the signal and sends the signal to the facsimile storage and forwarding device 71. Also, the facsimile storage and forwarding device sends a call to the facsimile device. When this is done, the calling means 6 performs acquisition so as to alternately use either the idle line in the first line group l or the idle line in the second line #2 based on the call request.

Such a communication control device 3 is actually configured as shown in FIG.

4 people indicate the first receiving means compatible with 1-line CHI,
5A indicates a second receiving means corresponding to one line CHn+1. The first receiving means 4AK is provided with a line control section 401, and the line control section 301 sends a signal for starting and restoring the line network to the line CHI. Reference numeral 302 indicates a control unit, which controls the fifth part according to the facsimile transmission control procedure.
The control in step ① in Fig. 6 is performed. 303 indicates a PB signal recognition unit. The FB signal recognition unit 303
, P indicating control information arriving via the line control unit 301
It receives and recognizes the B signal, converts it into predetermined information, and outputs it to the interface circuit 304. In addition, the control unit 302 and P
The B signal recognition unit 303 sends and receives signals, and
Confirmation is performed at the time of switching between the stage and the 2nd stage, and at the time of switching between the 2nd stage and the 2nd stage, and the start and end of each operation is controlled. The ink 7 process circuit 304 is connected to the control unit 302 and F
The B signal recognition unit 3o3 is connected to the bus 4 of the central processing unit 401.
02, and corresponds to the fact that the data format speeds are different between each. The central processing unit 401 is the first receiving means 4A.

The second receiving means 5A is controlled to control each part so that information can be communicated according to the communication procedure shown in FIGS. 5 and 6 when a call is received. Further, when making a call, the central processing unit 401 functions as a calling means 6 that seizes a line according to a 7o-chart program as shown in FIG. 3 in the main memory.

When making a call, in step 501 it is checked whether the line group used last time was the first or second line group, and in step 1502
Then, it is checked whether there is an idle line in the second line group 2, which is different from the previous line. If there is an idle line, the trap selects a line to be selected among the idle lines according to a predetermined rule in step 503.

In this example, line CHn, line CHn + m
1 time m CHn -1, line CHn + m-1, -
Cyclically, in the order of 1-line CHI, the line next to the previously used line is selected. For example, last time 1 line CHn-
If i (or n+m-1) is being used, line CHn-i-1 (CHn+m-1-1) is selected this time (if this is not empty, the next line is selected). If there is no idle line in step 502, it is checked in step 504 whether there is an idle line in other line groups, and if there is an idle line, the process proceeds to step 503. Further, if there is no free line in step 504, the program of this flowchart is repeated until a free line is available.

When the calling line is selected in this way, the central processing unit 4
01 controls the control unit 302 via the interface circuit 304 of the receiving means corresponding to the line,
Place a call to the desired facsimile machine. When making a call, the lines are cyclically selected in the order shown on the right side of FIG. This is the same as the four receiving means.

m1, in a line network not shown, the line group l of tal and the second
A call is made to arrive at line group 2 in accordance with the program of the flowchart of FIG. 4 using the representative selection method.

That is, in step 601, it is checked whether the representative dial number of the first line group 1 or the representative dial number of the second line group 20 has arrived. If it is the representative dial number of the first line group 1, it is checked in step 602 whether there is an idle line in the first line group l, and if there is an idle line, in step 603, starting from the last used line, The idle line is checked cyclically in the order of line CHI, line @CH2, -..., CHn, and the call is received on the first idle line found.

Further, if it is the representative dial number of the second surface line group 2, operations similar to steps 602 and 603 described above are performed in steps 604 and 605, and when there is no idle line, K returns to step 606.
A busy tone is returned to the calling party.

According to this embodiment configured in this way, it is sufficient to have the required number of first receiving means and second receiving means.
Compared to the conventional communication control device, which is entirely composed of the first receiving means, the present invention has a simpler structure and can accurately receive the PR signal and the 300 baud control signal. Moreover, the control by the line network and the control by the calling means average out the frequency of use of the lines, eliminate lines that are rarely used, and improve the efficiency of system utilization.

In the embodiment, a line exclusively for incoming calls is not provided, but for example, one or more lines in the first line group and the second line group are reserved exclusively for incoming calls, and one or more lines are reserved for incoming calls. It is also possible to ensure that all lines are not blocked, so that incoming calls from facsimile machines can be received accurately.

〔Effect of the invention〕

As described above, according to the present invention, although the configuration is simple, even if the control signal is a PB signal or a signal in a communication procedure different from the PB multiple signal, it is possible to accurately receive these signals. In addition, it is possible to control line acquisition at the time of one call and equalize the frequency of use of the parent line.

Furthermore, since it is possible to operate only one of the receiving means, even in a system where the terminal communicates control information using PB signals (PB signals are signals with different communication procedures), only the other receiving means can be turned off and used. There is no waste.

Moreover, if this device is used in consideration of the case where control information will be communicated using two types of signals in the future, it will be easy to change the system later.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
FIGS. 3 and 4 are block diagrams showing the details of the figures, and FIGS.
The figure shows a control information communication system, and FIG. 7 is a block diagram of a conventional example. l・-First line group 2...Second line group 3・-Communication control device 4.4A=-First receiving means 5.5 people-Second
Receiving means 6... Calling means 301--Line control section
302...Control unit 363--FB signal recognition unit
” 304-Interface circuit

Claims (2)

[Claims] (1) In a communication control device of a system that communicates control information accompanying main information by either a PB signal or a signal in a communication procedure different from the PB signal, the control information sent from the terminal to the center is the PB signal. a first receiving means that is connected to the first line group used in some cases and receives control information of the PB signal; and the control information transmitted from the terminal to the center is a signal in a communication procedure different from the PB signal. a second receiving means that is connected to a second line group that is sometimes used and receives a signal in a communication procedure different from the PB signal, and connected to the first line group and the second line group; 1. A communication control device comprising: calling means for alternately seizing idle lines of the first line group and the second line group when making a call from a center to a terminal. (2) A representative selection method is adopted for the first line group and the second line group, and calls are received on empty lines in a predetermined order. communication control device.