JPH05252293A - System for securing operating channel for data communication system utilizing plural lines - Google Patents

Abstract

PURPOSE:To obtain the operating channel security system in which plural channels used in the ultrahigh speed communication mode are secured easily and efficiently. CONSTITUTION:A dial number of plural channels used in the ultrahigh speed communication mode is set in advance in a dial number storage section 22a by manual input or the like. A system control section 10a makes a request of dialing a dial number set by the dial number storage section 22a to a plural- line control section 13a. The plural-line control section 13a informs the connection result information after dialing to the system control section 10a. The system control section 10a gives identification information representing it to a channel whose connection is failed. Redial information check section 23a checks the dial number with the identification information added thereto and the system control section 10a makes a request of redialing with the dial number checked to the plural-line control section 13a. As a result, the probability of securing plural channels used for the ultrahigh speed communication is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a used channel securing system for data communication by a plurality of lines, and more particularly to a used channel securing system for securing a channel used for data communication using a plurality of lines.

[0002]

2. Description of the Related Art Conventionally, when transmitting and receiving data between communication devices such as facsimile machines, since only one communication line can be used at the same time, one communication data is serially transmitted by one line. Therefore,
When transmitting image data having a large amount of information such as newspapers and magazines, there is a problem that the transmission time is extremely long.

However, in recent years, a comprehensive service digital network (hereinafter abbreviated as ISDN) has been constructed, and it has become easy to use a plurality of communication lines at the same time.

ISDN is a conventional service (telephone,
While a communication network for each purpose was required for data, telex, etc.), a single user network interface integrated and transmitted a plurality of different services. -It is a communication network that has the advantage that access circuits for each screw can be integrated into one.

With the spread of ISDN, there is an idea in recent years that communication is performed using a plurality of lines.

[0006]

However, up to now, regarding the data communication system using a plurality of lines as described above, the communication system is disclosed only in an extremely abstract manner, and the specific communication system is clear. It wasn't.

For example, when image data is transmitted using a plurality of lines, no consideration has been given to how to specifically secure a plurality of lines to be used, that is, a plurality of channels.

In view of the above-mentioned problems of the prior art, an object of the present invention is to secure a used channel that can easily and efficiently secure a plurality of channels used when performing communication using a plurality of lines. To provide a method.

[0009]

In order to achieve the above object, the invention of claim 1 is a dial number storage section for storing dial numbers of a plurality of channels for ultra high speed communication,
While making a call request for the plurality of channels and receiving notification of the line connection result, the identification information of the line connection success and failure of the ultra high speed communication is attached to each of the plurality of channels in the dial number storage unit. It is characterized in that it comprises means and means for requesting a recalling call to a channel to which unsuccessful identification information is attached.

Further, the invention of claim 2 is a means for storing the first priority dial number and the second priority dial number for ultra high speed communication in the dial number storage section, and the first priority dial number is issued first. It is characterized in that it is provided with means for making a call with the second priority dial number for those who call and cannot connect to the line.

According to a third aspect of the present invention, when there is an incoming call of ultra high-speed communication, there is a called party information storage unit that stores the called party information, and when there is a channel that is normally received at the time of the incoming call, the normal reception ends. Sometimes, means for checking whether or not there is an incoming call for ultra-high speed communication in the called party information storage section, and when it is determined that there is an incoming call for ultra-high speed communication, an incoming call is received from the called party that matches the called party information. It is characterized in that it is provided with means for receiving and responding to the channel only when there is.

The invention of claim 4 is characterized in that it comprises means for receiving ultra-high-speed communication in a polling procedure based on the call destination information stored in the call destination information storage section.

The invention of claim 5 is characterized in that it comprises means for sending a super-high-speed communication receivable notification to the transmitting side based on the calling party information stored in the calling party information storage section.

[0014]

According to the invention of claim 1, when the planned number of lines for ultra high speed communication cannot be secured by the first call, the ultra high speed communication is started on the secured line and the connection cannot be established. The call is re-established for the line that was opened. As a result, the probability of securing the planned number of lines is improved.

According to the second aspect of the present invention, the first priority dial number is used to make a call first, and if the line connection cannot be established, the second priority dial number is used.

According to the third aspect of the invention, the receiving side stores the call destination information of the ultra-high speed communication, and at the end of the normal communication, checks whether or not the call destination information is stored. Then, when the call destination information is stored, the response is made only when there is an incoming call from the call destination. As a result, the receiving side does not respond to an incoming call from another call destination and does not become busy, so that the probability of securing the planned number of lines for ultra-high speed communication is improved.

According to the invention of claim 4, at the end of the normal communication, the receiving side receives the ultra high speed communication in the polling procedure based on the callee information of the ultra high speed communication.

According to the invention of claim 5, at the end of the normal communication, the receiving side sends an ultra high speed communication receivable notification to the transmitting side based on the callee information of the ultra high speed communication.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings. First, a schematic configuration of a facsimile apparatus to which the present invention is applied will be described with reference to FIGS. 2 and 3. 2 shows the configuration of the transmitting station, and FIG. 3 shows the configuration of the receiving station.
Usually, the transmitting station and the receiving station are housed in a single facsimile machine, and many components are shared at the time of transmission and at the time of reception. In addition, a subscript a is attached to the transmitting station and a subscript b is attached to the receiving station to distinguish them from each other.

In FIG. 2, the operation unit 11a has operation keys such as a numeric keypad and a function selection key, a display unit, etc., and the system control unit 1 receives information according to the contents of operation by the operator.
Output to 0a. The system control unit 10a controls the entire facsimile device.

The image input unit 14a reads the document information on the document 1 and converts it into communication data of an electric signal, and outputs this to the encoding unit 15a. The encoding unit 15a encodes the communication data and outputs it to the file storage unit 16a.

The file storage unit 16a stores the encoded communication data as an image file. The file division unit 17a divides the communication data stored in the file storage unit 16a into a plurality of block data and outputs the block data. As shown in FIG. 4, the divided block control unit 18a manages the divided block data such as document No., page No., block No., block data size, image quality, and paper size. Is added and output.

The block delivery control unit 33a delivers each block data to each protocol control unit 21a-1 to 21a-n. Each protocol control unit 21a-1 to 21a-n
Transmits the delivered block data to the receiving station by a normal protocol process. Multiple communication controller 12a
Controls the protocol control units 21a-1 to 21a-n.

The multiple line control unit 13a makes a call request to the line control unit 20a corresponding to the notified line. The line control units 20a-1 to 20a-n automatically dial and call the receiving station when there is a transmission instruction by one-touch dialing or speed dialing, and execute a process of connecting a line with the receiving station. .. The result is notified to the multiple line control unit 13a.

The line switching unit 19a is the system control unit 10
In response to an instruction from a, each protocol control unit 21a-1
21a-n and the line control units 20a-1 to 20a-n are appropriately connected. The multiple line control unit 13a controls each of the line control units 20a-1 to 20a-n.

On the other hand, in FIG. 3, the file synthesizing unit 32
b is a combination of a plurality of block data delivered from the divided block control unit 18b based on the management information,
Output to the file storage unit 16b. The decryption unit 31b
The communication data stored in the file storage unit 16b is decrypted. The image output unit 30b records the decrypted communication data and restores the original 1.

An embodiment of the present invention will be described in detail with reference to FIG. In FIG. 1, the dial number storage unit 22a
In, the dial numbers of a plurality of channels are registered manually in advance for ultra-high speed communication.

During ultra-high speed communication, the system controller 10a
Instructs the multi-line control unit 13a to make a call to the preset number of channels for ultra-high speed communication. Upon receiving this instruction, the plural line control unit 13a makes a call request to the line control unit 20a having the number of channels. The line control unit 20a, which has received the call request, performs a call connection process suitable for each line interface and returns the connection result to the multiple line control unit 13a.

The plural-line control unit 13a informs the system control unit 10a of the connection result by associating it with the dial number of the call destination of each line control unit. The system control unit 10a uses the received result information as the dial number storage unit 2
Store in 2a.

FIG. 5 shows an example of data stored in the dial number storage section 22a. In the illustrated example, the number of channels preset for ultra-high speed communication is n lines,
Identification information of 0 is set in the channel secured result column, and identification information of 1 is set in the channel that is not successfully connected. Also, in the dial number column,
The telephone number of each channel is set.

Next, the system control unit 10a secures a protocol control unit corresponding to the connected line, controls the line switching unit 19a, and connects the protocol control unit 21a and the line control unit 20a. Then, the communication is started using the connected line.

In parallel with this, the redial information check unit 23a of the system control unit 10a checks whether or not the line reservation result information of the dial number storage unit 22a includes a line requiring redial. .. If there is a line that requires redial, the system control unit releases the line once and requests a redial call. When there is a request for re-calling, the multiple line control unit 13a
Instructs the relevant line control unit to make a call.
When the line is connected to the partner device by this re-call, this line participates in the ultra high-speed communication.

The above re-call may be repeated a predetermined number of times or may be repeated until the ultra high speed communication is completed.

As described above, according to this embodiment, since the channel which is not connected to the partner device is connected by the re-calling, the number of lines required for the ultra-high speed communication is close to or all the lines. The effect is that the number of lines can be secured.

6 and 7 are flow charts for explaining the operation of the system control unit 10a in the first embodiment.

In step S1, the system control unit 10a makes a call request for a preset number of lines to the multiple line control unit 13a. In step S2, it is determined whether or not a call result has been received from the multiple line control unit 13a, and when the call result is received, the process proceeds to step S3, where the line control that secures a line in the multiple communication control unit 12a is performed. Request protocol activation for department.

Next, in step S4, the line control unit N that could not secure a line in the dial number storage unit 22a.
O. The line reservation result of is set to 1. In step S5, a request to stop the line for which the line could not be secured is issued to the multiple line control unit 13a.

In step S6, the system controller 10a
Judges whether or not it has received the consistency result of the line control unit that has secured the line, and if it has received the consistency result, the process proceeds to step S7, and the protocol consistency of all the secured lines is confirmed. Make a decision as to whether it is good or not. If this determination is affirmative, the process proceeds to step S8, and if not, the process proceeds to step S11.

In step S8, ultrahigh-speed communication is started using the line having the good protocol compatibility. On the other hand, in step S11, a stop request is issued to the line for which the protocol consistency is not obtained. In step S12, it is determined whether or not all the lines requested to make a call in step S1 have been released. If the determination is negative, that is, if there is a line with protocol consistency, go to step S8. Go ahead and carry out ultra-high speed communication on the secured line. If the determination in step S12 is affirmative, that is, if all of the call-requested lines are released, the process ends.

In step S9 following step S8, it is determined whether or not the ultra-high speed communication is completed. If the result is negative, the process proceeds to step S10 and the line reservation result of the dial number storage unit 22a is set to 1 Check whether there is a line requiring redial. If there is a line that requires redial, the process proceeds to step S13 in FIG. 7, and if there is no line that requires redial, the process returns to step S9. If the determination in step S9 is affirmative, step S in FIG.
Proceed to 21.

In step S13 of FIG. 7, the multiple line control unit 13a makes a call request to the line of the line reservation information 1 of the dial number storage unit 22a. Step S1
In 4, it is judged whether or not the call result is received. If the judgment is negative, the process proceeds to step S15, and it is judged whether or not the ultra high speed communication is ended. On the other hand, if the determination is affirmative, the process proceeds to step S16 to request the plural communication control unit 12a to activate the protocol for the line control unit that secures the line. Then, steps S17 and S1
8 and proceed to S19. The processing of these steps is
This is the same as steps S4, S5, and S6. If the determination in step S19 is affirmative, then step S19
Returning to step 7, the protocol consistency is judged. And
If the protocol consistency is good, participate in ultra-high speed communication.

When the determinations in steps S9, S15 and S20 are affirmative, the process proceeds to step S21, and a stop request is issued to the multiple communication control unit 12a and the multiple line control unit 13a. Then, the series of processes is ended.

Next, a second embodiment of the present invention will be described. The difference of this embodiment from the first embodiment is that, as shown in FIG. 8, the first priority dial number and the second priority dial number (back dial) are stored in the dial number column of the dial number storage unit 22a. ) And are manually registered in advance, and when the first call is made, the first priority dial number is used, and when the line connection is unsuccessful,
The point is that a call is made using the second priority dial number.

Further, the only difference between the flowchart of the first embodiment (FIGS. 6 and 7) and the flowchart of this embodiment is steps S1 and S13. These steps S1 and S13 are the same as step S1 shown in FIG.
It changes to 1a and step S13a. In step S1a, the multi-line control unit 13a makes a call to the first priority dial number having a preset number of lines. In step S13a, the plural line control unit 13a is requested to make a call request to the second priority dial number having the line reservation information of 1 in the dial number storage unit.

According to the second embodiment, when the preset number of channels cannot be secured, the back dial is called, so that the probability of securing the preset number of channels is increased. You can

Next, a third embodiment of the present invention will be described. In this embodiment, as shown in FIG. 10, a callee information storage unit 22b is connected to the system control unit 10b on the receiving station side, and the callee information storage unit 22b receives an incoming call for ultra-high-speed communication. Register the dial number that was there, and when the communication currently being communicated ends, prepare for an incoming call of ultra high speed communication,
It does not accept other incoming calls.

Next, the operation of the system control section 10b will be described with reference to the flowchart of FIG.

In step S0, when there is an incoming call for normal reception, the system control unit 10b instructs the line control unit that received the incoming call to start normal reception. In step S1,
It is determined whether or not the normal reception is completed. When the determination is negative, the process proceeds to step S2 to determine whether or not there is an incoming call. If there is an incoming call, step S
In step 3, it is determined whether or not the incoming call is an incoming call for ultra-high speed communication. If the communication is ultra-high speed communication, the process proceeds to step S4 to store the information of the call destination in the call destination information storage unit 22b.

This calling party information can be sent to the called party by putting the ID of the calling party on the NSS in the protocol of the line that has been successfully connected.

Next, when the determination in step S1 is affirmative, the process proceeds to step S5, and the called party information storage section 22 is called.
It is determined whether or not the callee information is stored in b. If this determination is affirmative, the process proceeds to step S6 and it is determined whether or not there is an incoming call. Step S
At 7, if this incoming call is an incoming call for ultra-high-speed communication, it is determined whether the called party for the ultra-high-speed communication matches the called party information.

If it is determined in step S8 that the calling party information matches, the process proceeds to step S9, and the line control unit is instructed to start receiving the ultra high speed communication. Then, in step S10, when the reception of the ultra-high-speed communication ends, the series of operations ends. On the other hand, if there is an incoming call in step S6 but not an incoming call for ultra-high speed communication, or if there is an incoming call for ultra-high speed communication in step S7 but the callers do not match, then the incoming call is answered. Without waiting, continue the standby state.

As a result of the above operation, when the receiving side receives an incoming call for ultra-high-speed communication, if the line control unit in communication ends the incoming call, it will not accept the incoming call from another transmitting station. If there is a redial from the call destination of the ultra high-speed communication, it can be surely responded to this. Therefore, according to the present embodiment, there is an effect that the preset number of channels can be secured with high probability.

Next, a fourth embodiment of the present invention will be described with reference to the flowchart of FIG.

The difference of this embodiment from the third embodiment is that when the normal reception is completed, the call destination of the ultra high speed communication is called by polling and the ultra high speed communication is started.

Steps S0 to S5 are the same as in FIG. Following step S5, in the present embodiment, processing of taking out the call destination information from the call destination information storage unit 22b and making a call is performed (step S11). Next, the process proceeds to step S12, and reception of ultra-high speed communication is started by the polling procedure.

It is natural that the calling side prepares for polling from the receiving side by releasing the line that could not be connected so as to be ready for polling reception.

As described above, according to this embodiment, when the receiving station finishes the normal reception, the information of the call destination is taken out from the call destination information storage unit 22b and the polling reception is performed. There is an effect that the number of channels set in advance for communication can be secured with high probability.

Next, a fifth embodiment of the present invention will be described. The feature of this embodiment lies in the following points. That is, when the calling side of the ultra-high-speed communication cannot secure a predetermined number of channels, it releases the channel once and waits for an incoming call from the receiving side. On the other hand, when the communication from the other party currently communicating is completed, the receiving side makes a call to the dialing number of the calling side that had the ultra-high speed communication, and notifies that it is in a state of being able to receive the ultra-high speed communication. .. The calling side, which has received the notification that it is ready to receive the ultra high speed communication, makes a call to the receiving side, connects the line and starts the ultra high speed communication.

The flowchart of FIG. 13 shows the operation of the system control section 10b on the receiving side.

In the figure, steps S0 to S5 and S
Since 6 to S10 are the same as those in the third embodiment, the description thereof will be omitted, and only steps S13 and S14 after step S5 will be described.

In step S13, the line control unit, which has completed the normal reception, retrieves the information of the call destination from the call destination information storage unit 22b and makes a call. Succeedingly, in a step S14, the transmitting side is notified that the super-high-speed communication can be received.

Also in this embodiment, as in the third and fourth embodiments, there is an effect that a preset number of channels for ultrahigh speed communication can be secured with high probability.

[0063]

According to the first and second aspects of the present invention, when the planned number of channels for the ultra-high speed communication cannot be secured by the first call, the call is reissued and an attempt is made to secure the line. Therefore, the probability of securing the planned number of channels is improved.

Further, according to the inventions of claims 2 to 4, the receiving side is configured to preferentially receive the incoming of the ultra-high speed communication, so that the planned number of channels for the ultra-high speed communication is secured. The probability of doing is improved.

[Brief description of drawings]

FIG. 1 is a block diagram of a main part of a first embodiment of the present invention.

FIG. 2 is a block diagram of a transmission unit of a facsimile apparatus to which a characteristic part of the first embodiment is added.

FIG. 3 is a block diagram of a receiving unit of a facsimile apparatus to which the present invention is applied.

FIG. 4 is a diagram schematically showing the structure of block data.

5 is a conceptual diagram of data stored in a dial number storage unit of FIG.

FIG. 6 is a flowchart for explaining the operation of the first exemplary embodiment of the present invention.

FIG. 7 is a continuation of the flowchart of FIG.

FIG. 8 is a conceptual diagram of other data stored in the dial number storage unit of FIG.

FIG. 9 is a diagram showing steps of a characteristic part of the second exemplary embodiment of the present invention.

FIG. 10 is a block diagram of a receiving unit of a facsimile apparatus to which a characteristic part of the third embodiment is added.

FIG. 11 is a flow chart for explaining the operation of the third embodiment of the present invention.

FIG. 12 is a flow chart for explaining the operation of the fourth embodiment of the present invention.

FIG. 13 is a flow chart for explaining the operation of the fifth embodiment of the present invention.

[Explanation of symbols]

10a, 10b ... System control unit, 11a ... Operation unit, 1
2a ... multiple communication control unit, 13a ... multiple line control unit, 14
a ... Image input unit, 15 ... Encoding unit, 16a ... File storage unit, 17a ... File dividing unit, 18a ... Divided block control unit, 19a ... Line switching unit, 20a ... Line control unit, 2
1a ... Protocol control unit, 22a ... Dial number storage unit, 22b ... Call destination information storage unit, 23a ... Redial information check unit, 30b ... Image output unit, 31b ... Decoding unit, 32b ... File combining unit, 33a ... Block Delivery control unit

Front page continuation (72) Inventor Yoshiaki Tezuka, 3-7-1, Fuchu, Iwatsuki City, Saitama Prefecture Fuji Zelocks Co., Ltd. Iwatsuki Plant (72) Inventor, Shinichiro Nagoshi 3-7-1, Fuchu, Iwatsuki City, Saitama Prefecture Rocks Co., Ltd. Iwatsuki Works (72) Inventor Hideo Kinami 3-7-1, Iwatsuki-shi, Saitama Prefecture Fuji-Zeros Co., Ltd. Iwatsuki Works (72) Kosuke Sakaki 3-7-1, Iwatsuki City, Saitama Prefecture No. Fuji Xerox Co., Ltd. Iwatsuki Plant (72) Inventor Yasuhiro Ueyama 3-7-1, Fuchu, Iwatsuki City, Saitama Prefecture Fuji Xerox Co., Ltd. Iwatsuki Plant

Claims (5)

[Claims] 1. A dial number storage unit for storing dial numbers of a plurality of channels for ultra high-speed communication, a call request for the plurality of channels, a notification of a line connection result, and the dial number. To each of the plurality of channels in the storage unit, there is provided means for attaching identification information of success and failure of line connection for ultra-high-speed communication, and means for requesting re-calling for a channel provided with identification information for unsuccessful communication. A method for securing a channel used for data communication by a plurality of lines characterized by being provided. 2. A dial number storage unit for storing a plurality of first priority dial numbers and second priority dial numbers for ultra high speed communication, and a call request for the plurality of first priority dial numbers, Upon receiving the notification of the line connection result, means for attaching the identification information of the line connection success and failure of the ultra-high-speed communication to each of the plurality of channels in the dial number storage unit, and the identification information of the unsuccessful Second to channel
A method for securing a channel used for data communication by a plurality of lines, comprising means for requesting a re-call with a priority dial number. 3. A callee information storage unit for storing callee information at the time of an incoming call of ultra-high-speed communication, and when there is a channel that is normally receiving at the time of the incoming call, at the end of the normal call, the callout A means for checking whether there is an incoming call for ultra-high-speed communication in the destination information storage section, and only when an incoming call is received from a calling party that matches the calling party information when it is determined that there is an incoming call for ultra-high-speed communication And a means for receiving and responding to the channel, a channel securing method for data communication by a plurality of lines. 4. A callee information storage unit that stores callee information when a call arrives in ultra high-speed communication, and when there is a channel that is normally receiving when the call is received, the caller is called when the normal reception ends. A means for checking whether or not there is an incoming call for ultra high speed communication in the destination information storage section, and when it is determined that there is an incoming call for ultra high speed communication, the ultra high speed communication is received by a polling procedure based on the calling party information. A method for securing a channel used for data communication by a plurality of lines, the method including: 5. A callee information storage unit that stores callee information at the time of an incoming call of ultra-high-speed communication, and when there is a channel that is normally receiving at the time of the incoming call, at the end of the normal call, the call is made. It is provided with means for checking whether or not there is an incoming call for ultra-high-speed communication in the destination information storage section, and means for sending a notification of receivable ultra-high-speed communication to the sender when it is determined that there is an incoming call for ultra-high-speed communication. A method of securing channels used for data communication over multiple lines.