JP2524707B2 - Compound communication terminal - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a composite communication terminal device having a plurality of different communication functions such as a facsimile, a teletex, and a personal computer.

[Prior Art] In recent years, a communication terminal apparatus using a public telephone line network as a transmission line has become more multifunctional, for example, a composite communication including a facsimile function, a teletex function, a personal computer communication function, and a telephone (call) function. Terminal devices are being put to practical use.

If you combine multiple communication functions like this,
It is necessary to identify which communication function was selected when the other party called.

To this end, for example, it is possible to identify which communication function is selected by executing all the processes of the first part of the transmission control procedure of each communication function in parallel. It becomes very complicated, and it is difficult to apply it to the addition or deletion of the communication function of the device.

[Object] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a composite communication terminal device capable of setting a target communication device function by a simple process.

[Configuration] The present invention relates to a composite communication terminal device having a plurality of different communication functions such as a facsimile, a teletex, and a personal computer, and an operation unit for inputting destination information and selecting a communication function for data communication. Data for converting the data format of the data to be communicated into the format of the data format corresponding to the selected communication function, with the network control unit that executes the calling processing or the incoming processing from the communication line based on the destination information. After sending a communication function setting signal corresponding to the communication function selected by the operation unit at the time of transmission to the conversion unit and setting the communication mode, and after confirming that the setting of the communication mode with the destination is complete While sending the specified data, at the time of reception, it discriminates the communication function setting signal sent from the calling side and uses this communication function setting signal. A system control unit for selecting a corresponding communication function, setting a communication mode, and shifting to a data receiving operation, and a data format of data to be communicated and a data format corresponding to the communication function selected by the operation unit. If they are different from each other, the data is converted into the format of the data by the data conversion unit and then transmitted.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a communication terminal device according to an embodiment of the present invention. This communication terminal device is a compound communication terminal device having a telephone function, a facsimile function, a teletex function, and a personal computer communication function (hereinafter referred to as a personal computer communication function).

In the figure, a scanner 1 reads an original image at a predetermined resolution, a plotter 2 records an image at a predetermined resolution, and an external storage device 3 stores a large amount of data such as a magnetic disk device. It is a device.

The system control unit 4 is for controlling the entire communication terminal device, and executes each communication function and various other data processing. It should be noted that if a system having a parallel processing function capable of providing a multitasking environment to the operator is used as the system control unit 4, the processing of the communication function can be realized in the background, so that the usability of this communication terminal device is very high. improves.

The buzzer circuit 5 is for calling the operator of this communication terminal device a special attention when an emergency communication is received, and the keyboard 6 and the screen display unit 7 are for the operator to operate this communication terminal device. The memory 8 constitutes a work area of the system control unit 4 and stores transmission / reception information, and the encoding / decoding unit 9 is for transmitting image information in a compressed state.

The communication control unit 10 is for executing transmission control procedure processing in each of facsimile communication, teletex communication and personal computer communication, and the modem 11 transmits digital data using a public telephone line network which is an analog line. It modulates and demodulates as much as possible, and has all the operation modes required for each communication function.

The network control device 12 is for connecting this communication terminal device to a public telephone line network, and further has an automatic call originating / receiving function. The network control device 12 also includes a telephone terminal whose ringer ringing is controlled by the system control unit 4.
13 are connected.

Among these elements, the scanner 1, plotter 2, external storage device 3, keyboard 6, screen display unit 7, memory 8, encoding / decoding unit 9, and communication control unit 10 are connected via the system bus 15. It is connected to the system control unit 4. In addition, the exchange of data between these respective elements is performed via the system bus 15.

FIG. 2 shows an outline of the network control device 12 and the telephone terminal 13.

In the figure, of the two lines L1 and L2 connected to the public telephone line network, the line L1 is directly connected to one common contact of the DC closing relay 21, and the line L2 is for detecting off-hook. It is connected to the other common contact of the DC closing relay 21 via the off-hook detection circuit 22.

The DC closing relay 21 is a ringing detection circuit 23 for detecting ringing and a bush dial signal for connecting the lines L1 and L2 by switching to the telephone terminal 13 or the modem 11 side and connecting to the telephone terminal 13. DTMF (Dual T
A DTMF detection circuit 24 for detecting a one multi frequency) signal is connected in parallel to the telephone terminal 13.

A 2-wire / 4-wire conversion circuit 25 is interposed between the DC closing relay 21 and the modem 11, and the transmission signal from the modem 11 and the modem 11 are connected.
It is separated from the received signal to the DTMF
A DTMF generation circuit 26 for generating a signal is connected.

The telephone terminal 13 is provided with a call circuit 31 for realizing a call using a handset, and a ringer circuit 32 for notifying an operator of an incoming call. In this way, the telephone terminal 13 is not provided with a means for generating a selection signal (that is, a push dial signal), so that the push dial signal is generated from the DTMF generating circuit 26.

Further, the signal S1 output from the off-hook detection circuit 22 at the time of off-hook detection, the signal S2 output from the ringing detection circuit 23 at the time of ringing detection, and the DTMF detection circuit 24.
The data DD representing the DTMF signal detected by is added to the system control unit 4.

Further, from the system control section 4, the signal S3 for switching the DC closing relay 21 and the DTMF generated by the DTMF generating circuit 26 are generated.
Data DC for setting signals and ringer circuit 32
The signal S4 for ringing is output.

Next, an outline of an example of the operation of this communication terminal device will be described.

For example, the control program executed by the system control unit 4 and various data necessary for the control program are stored in the system control unit 4 from the external storage device 3 when the communication terminal device is activated.
Then, the system control unit 4 displays the main menu and the like on the screen display unit 7.

In this main menu, a list of various processes that the communication terminal device can execute at that time is displayed, which allows the operator to operate the keyboard 6 as appropriate (for example, enter the number assigned to the desired process). By doing so, desired processing can be executed.

For example, when the telephone function is selected, the system control unit 4 inputs various parameters necessary to realize the function (in this case, information such as abbreviated number for designating a destination). When a predetermined message for prompting is displayed on the screen display unit 7 and the operator inputs the address information in response to this, the telephone number corresponding to the address information is output to the network control device 12 to call the address. .

In addition, when the operator is made to input the destination information, an internal (for example, the external storage device 3 or the system control unit 4)
It is also possible to display the telephone directory information stored in the non-volatile storage device etc.) and call the destination selected in the telephone directory information. At this time, the telephone directory information may include not only telephone information but also facsimile communication, teletex communication, or personal computer communication destination information and its communication mode type. In that case, the system control unit 4 can determine the communication mode to be applied to the designated destination, so that it is possible to save the trouble of selecting the communication mode from the main menu.

When the operator selects the facsimile communication, the system control unit 4 checks whether the transmission document is set on the scanner 1 or whether the transmission document is formed by the operator, and when the transmission information can be confirmed. In the same manner as described above, the destination information is input and other parameters necessary for facsimile communication (for example, designated transmission time, presence / absence of confidential mode, designation of broadcast transmission, etc.) are set.

At this time, when the operator sets a document created by the document creating function (word processing function) of this communication terminal device as a transmission document, the system control unit 4 converts the transmission document into raster data and sends it to the destination. To transmit.

If the operator selects teletex communication,
After designating the document to be transmitted, the destination information is entered in the same manner as described above. In this case, since the code data is transmitted, conversion into raster data is unnecessary.

When the operator selects personal computer communication, the destination information is input and the destination is called in the same manner as described above. Note that in personal computer communication, data is exchanged interactively with a destination, so when transmitting document information, a transmission original is designated during communication.

Further, when the processing for creating the above-mentioned telephone directory information, documents, etc. is selected, the processing shifts to each processing.

Here, the above-mentioned communication terminal device (composite communication terminal device)
In the following, a method of setting communication modes used mutually will be described.

This communication mode setting includes an identification signal transmitted from the calling device to the called device to set the communication function,
An identification confirmation signal that responds to the calling device that the setting of the communication function corresponding to the identification signal is completed is used.

A multi-digit DTMF signal is used as the identification signal, and "* 0" and "*" correspond to the telephone function, facsimile function, teletex function and personal computer communication function.
Two-digit signals “1”, “* 2”, and “* 3” are set respectively. Further, emergency communication can be designated, and in such a case, a 3-digit signal with "5" added to the end is set as the identification signal.

Also, as the identification confirmation signal, a 2-digit DTMF of "00"
The signal is used. Therefore, the calling device can judge that the setting of the communication mode is completed when the "00" is received.

As described above, when the operator on the calling device side selects the communication function and inputs the destination information, the system control unit 4 of the calling device executes the processing shown in FIGS. 3 (a) and 3 (b). The destination is called and the communication function to be used is set to perform data transmission.

First, the system control unit 4 switches the DC closing relay 21 of the network control device 12 to the modem 11 side, and sequentially outputs the data of each digit of the designated telephone number of the destination to the DTMF generation circuit 26. Call the specified destination (Process 10
1) Set 45 seconds in the internal timer to start this timer (process 102), and monitor whether the destination responds before this timer overflows (decision)
103, 104). Here, if the timer overflows before the destination responds (YES in the determination 104), the process 10 is performed.
Return to 1 and call again.

When the destination responds and the line is established, and the result of judgment 103 is YES, the variable N for setting the limit of the number of times the identification signal is sent is set to 3, which is the maximum value of the number of times of sending (process 10).
5) By the judgments 106, 107, 108, 109, the communication function set by the operator at that time is identified.

If the telephone terminal is specified and the result of judgment 106 is YES,
At that time, it is further judged whether or not an emergency designation is made (decision 110). When the result of this judgment 110 is NO, 2-digit data of "* 0" is sequentially selected to select the telephone function.
It is output to the DTMF generation circuit 26 (process 111), and the result of judgment 110 is
If YES, select with the telephone function and the three-digit data of "* 05" indicating that it is an emergency communication is sequentially DTMF
Output to the generation circuit 26 (process 112).

When facsimile communication is designated and the result of judgment 107 is YES, it is further judged whether or not an emergency command is issued at that time (decision 113). When the result of judgment 113 is NO, the telephone function is selected. The 2-digit data "* 1" is sequentially output to the DTMF generation circuit 26 (process 114), and the determination 113 is made.
When the result is YES, the three-digit data "* 15" representing the emergency communication, which is selected by the telephone function, is sequentially output to the DTMF generation circuit 26 (process 115).

If Teletex communication is designated and the result of judgment 108 is YES, it is further judged whether or not emergency designation is made at that time (decision 116), and when the result of judgment 116 is NO, the telephone function is selected. 2 digit data of "* 2" is sequentially output to the DTMF generation circuit 26 (process 117), and the determination 116
When the result is YES, the three-digit data "* 25" representing the emergency communication is selected by the telephone function and is sequentially output to the DTMF generating circuit 26 (process 118).

If personal computer communication is specified and the result of judgment 109 is YES, it is further judged whether or not an emergency designation is made at that time (decision 119). When the result of judgment 119 is NO, the telephone function is selected. The 2-digit data of "* 3" is sequentially output to the DTMF generation circuit 26 (process 120), and when the result of judgment 119 is YES, it is selected by the telephone function and it is an emergency communication. Digit data sequentially
Output to the DTMF generation circuit 26 (process 121).

If the result of determination 109 is NO, this process is immediately exited.

In this way, when the identification signal is sent to the destination, the system control unit 4 sets the internal timer to 1 second and activates this timer (process 122), until the timer overflows. Then, the detection data DD of the DTMF detection circuit 24 is monitored to see if the identification confirmation signal "00" has been received (decisions 123 and 124).

When the identification confirmation signal is received before the timer overflows and the result of the determination 123 is YES, the system control unit 4 has enabled communication in the communication mode set by the operator at that time, so the determinations 125, 126, 127
After identifying which communication mode is set by, perform each communication process 128,129,130,131 to communicate with the destination, and when the communication is completed, switch the DC closing relay 21 to the telephone terminal 13 side. The line is disconnected and the process is exited.

When the identification confirmation signal cannot be received and the timer overflows and the result of determination 124 is YES, the variable N is decremented and its value is decremented by 1 (process 132), and the value of the variable N is non-negative. Check if it is (decision 13
3) If the result of the determination 133 is YES, the process returns to the determination 106, and the identification signal representing the communication mode set at that time is generated again.

Then, when the destination does not respond properly and the result of the determination 133 is NO, for example, the buzzer circuit 5 is sounded,
The situation concerning the predetermined position on the screen display unit 7 is forcibly displayed, the operator is notified of that fact (process 134), the line is disconnected in the same manner as described above, and this process is terminated.

FIG. 4 shows a processing example of the call receiving device. In this case, a state other than that in which the communication terminal device is making a call corresponds to the called device. That is, the start portion of this process is executed in the background process in parallel with the foreground process being executed by the operator.

First, the system control unit 4 on the called device side monitors the occurrence of the ringing detection circuit 23 by detecting the generation of the detection signal S2 (decision 201), and if the result of this judgment 201 is YES, the direct current is detected. Switch the closing relay 21 to the modem 11 side to connect the line.

Then, the internal timer is set to 3 seconds and this timer is started (process 202), the detection data DD of the DTMF detection circuit 24 is monitored, and any one of the identifications is made until this timer overflows. It is monitored whether a signal has been received (decisions 203 and 204).

If the identification signal is received before the timer overflows and the result of judgment 203 is YES, the contents of the upper two digits of the received identification signal are "* 0", "* 1", "* 2", "*".
3 ”is identified (determination 205,206,207,20
8).

When the result of decision 205 is YES, it is further identified whether the received identification signal is “* 5” (decision 20).
9) If the result of this judgment 209 is YES, it means that the communication is urgent, so that the buzzer circuit 5 is sounded and an emergency communication display for displaying the emergency reception by telephone is displayed on the screen display unit 7 (process 201), and the DTMF is displayed. Two-digit data "00" is sequentially transferred to the generation circuit 26 and an identification confirmation signal is returned to the calling device (process 211). When the result of the determination 209 is NO, the process 210 is bypassed and the process 211 is executed.

Then, the detection signal S1 of the off-hook detection circuit 22 is monitored, and the ringer circuit 32 of the telephone terminal 13 is rung until the operator picks up the handset of the telephone terminal 13 and goes off-hook (process 212), and a predetermined telephone call process 213 is performed. Run.

When the result of determination 206 is YES, it is further determined whether or not the received identification signal is “* 15” (determination 21
4) If the result of this determination 214 is YES, it means that the communication is urgent, so the same urgent communication display as described above is displayed (process).
215), and responds to the calling device with an identification confirmation signal in the same manner as described above (process 216). When the result of the determination 214 is NO, the process 215 is bypassed and the process 216 is executed. Then, a predetermined facsimile communication process 217 is executed.

When the result of determination 207 is YES, it is further determined whether or not the received identification signal is “* 25” (determination 21
8) If the result of this determination 218 is YES, it means that the communication is urgent, so the same urgent communication display as above is displayed (processing).
219), and returns an identification confirmation signal to the calling device in the same manner as described above (process 220). When the result of the determination 218 is NO, the process 219 is bypassed and the process 220 is executed. Then, a predetermined teletex communication process 221 is executed.

When the result of determination 208 is YES, it is further determined whether or not the received identification signal is “* 35” (determination 22
2) If the result of this determination 222 is YES, it means that the communication is urgent, so the same urgent communication display as above is displayed (processing
223), and returns an identification confirmation signal to the calling device in the same manner as described above (process 224). When the result of the determination 222 is NO, the process 223 is bypassed and the process 224 is executed. Then, a predetermined personal computer communication process 225 is executed.

Further, when the identification signal cannot be received until the timer overflows and the result of the determination 204 is YES, and when the received identification signal is not the predetermined one, the determination signal is determined 208.
If the result is NO, the operator is called (process 226).

Then, when ending the processing 213, 217, 221, 225, 226 and exiting from this processing, the DC closing relay 21 is set to the telephone terminal 13
Switch to the side and disconnect the line.

In this way, the called device sets the communication function specified by the calling device by the identification signal and executes the corresponding communication process.

Therefore, the communication mode is appropriately set between the calling device and the called device, and the communication intended by the operator of the calling device can be realized. Also, the telephone terminal 13
Since the ringer circuit 32 of the telephone terminal 13 does not ring except when a call is made by the user, it is necessary to prevent the ringer circuit 32 from ringing one by one when there is an incoming call for other communication. You can

By the way, in the above-mentioned embodiment, the description has been made of the communication terminal device having the telephone call, the facsimile communication function, the teletex communication function and the personal computer communication function in combination, but the communication terminal device having a combination of other functions. Also, the present invention can be applied.

Further, the present invention can be applied to a communication terminal device having a configuration other than the device configuration of the above-described embodiment.

[Effect] As described above, according to the present invention, an operation of inputting destination information and selecting a communication function for communicating data in a compound communication terminal device having a plurality of different communication functions such as a facsimile, a teletex, and a personal computer. Section, a network control section that executes calling processing or incoming processing from the communication line based on the input destination information, and the data format of the data to be communicated is the data format that corresponds to the selected communication function. The data conversion unit that converts the data into the specified format, and at the time of transmission, sends the communication function setting signal corresponding to the communication function selected by the operation unit to execute the communication mode setting and complete the communication mode setting with the destination. After confirming that the specified data has been sent, the specified data is sent, while at the time of reception, the communication function setting signal sent from the calling side is discriminated. , A system control unit for selecting a communication function corresponding to the communication function setting signal, setting a communication mode, and shifting to a data receiving operation, the data format of data to be communicated, and the communication function selected by the operation unit. If the data format corresponding to the above is different, the data is converted to the format of the data by the data conversion unit and then transmitted, so that the user does not care about the data format when transmitting the data, and It is possible to appropriately select a communication mode from the communication functions provided, and it is possible to easily use a plurality of communication device functions by using the same line.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating a communication terminal device according to an embodiment of the present invention, FIG. 2 is a block diagram illustrating an example of a network control device, and FIGS. 3 (a) and 3 (b) are calling devices. FIG. 4 is a flowchart showing an example of the processing of FIG. 4, and FIG. 4 ... System control part, 6 ... Keyboard, 7 ... Screen display part, 10 ... Communication control part, 12 ... Network control device, 13 ...
Telephone terminal.

Claims (1)

(57) [Claims] 1. A composite communication terminal device having a plurality of different communication functions such as a facsimile, a teletex, a personal computer, etc., an operation unit for inputting destination information and selecting a communication function for communicating data, and input destination information. A network control unit that executes a calling process or a receiving process from a communication line based on the above, and a data conversion that converts the data format of the data to be communicated into the data format that corresponds to the selected communication function. Section, when sending, send a communication function setting signal corresponding to the communication function selected by the operation section above to set the communication mode, and specify after confirming that the setting of the communication mode with the destination is completed. While receiving the communication function setting signal, the communication function setting signal sent from the calling side is discriminated at the time of reception and the communication function setting signal is received. A system control unit for selecting a corresponding communication function, setting a communication mode and shifting to a data receiving operation, and a data format of data to be communicated and a data format corresponding to the communication function selected by the operation unit. If they are different, the composite communication terminal device is characterized in that the data is converted after being converted by the data conversion unit.