JPH03121648A - Isdn facsimile equipment - Google Patents

Abstract

PURPOSE:To surely inform it to the operator of a receiver that information is a picture information received from overseas by adding picture or country name information notifying the reception from overseas to a received picture. CONSTITUTION:A control section 1, a system memory 2, a parameter memory 3, a character generator 4, a clock circuit 5, a scanner 6, a plotter 7, an operation display section 8, a coding decoding section 9, a picture element density conversion section 10, a picture storage device 11, a D-channel transmission control section 14, a CODEC 15, a B-channel transmission control section 16, a group 3 facsimile MODEM 17, and a changeover device 18 are connected to an internal bus 21. Moreover, an identification picture displaying the incoming call from overseas or the picture displaying the name of the country of a country number is inserted to the reception picture. Thus, the operator clearly recognizes it that the picture is sent from an oversea facsimile equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ISDN facsimile device equipped with communication means for transmitting data using ISDN.

[Prior Art] Generally, in a facsimile machine, the sending side adds an image of identification information and the time of transmission so that the receiving side can identify the sending facsimile machine. Ta.

[Problem to be Solved by the Invention] However, in such a conventional 'ii, when image information is received from a facsimile device overseas, even if the operator of the receiving device reads the identification information, the image information is received from overseas. There may be cases where you are unable to recognize this, and in such cases,
For example, because there is a time difference between transmission times, the reception time may be incorrectly recognized.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an ISDN facsimile device that can reliably notify the operator of the receiving device that image information is received from overseas.

Means for Solving the Problem] The present invention displays that the call is coming from overseas when the ISDN address of the calling number information element of the call setting meso message received at the time of receiving the call includes an overseas country code. The apparatus includes a control means for inserting an identification image into a received image. Alternatively, the country code-country name table that stores the relationship between the country code of the ISDN address and the code of the character string displaying the name of the corresponding country, and the ISDN address of the calling party number information element of the call setup message received at the time of incoming call. When a country code is included, the character string code of the country name corresponding to the country code is read from the above country code-country name table, and an image of graphic characters that displays that character string code is inserted into the received image. It is equipped with control means to

[Operation] Therefore, since an image or country name is added to the received image to notify that the image is received from overseas, the operator who receives the image may be able to recognize that the image was sent from an overseas facsimile machine. It can be clearly recognized that

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

FIG. 1 shows a facsimile machine according to an embodiment of the present invention. This facsimile machine has both Group 3 facsimile machine functionality and Group 4 facsimile machine functionality.

In the figure, a control unit 1 executes operation control processing of the facsimile machine, group 3 facsimile transmission procedure processing, group 4 facsimile transmission procedure processing of the upper layer, and call procedure processing, and a system memory 2 , stores a processing program to be executed by the control unit I and various data necessary for executing the processing program, and constitutes a work area of the control unit 1. The parameter memory 3 is for storing various information specific to this facsimile machine, and is a nonvolatile semiconductor storage device such as a battery-backed SRAM (static random access memory) that can rewrite data. Consisting of

The character generator 4 is for generating image data of graphic characters to be added to the image, and is for generating image data of graphic characters to be added to the image.
is for obtaining current time information.

The scanner 6 is for reading the original image at the resolution set in the group 4 facsimile device,
The plotter 7 records and outputs images at the resolution set in the group 4 facsimile device.

The operation display section 8 is used to operate the facsimile machine, and includes various operation keys and various display devices such as a liquid crystal display for displaying guidance information to the operator.

The encoding/decoding unit 9 encodes and compresses one picture signal using a predetermined encoding method, and also decodes the encoded and compressed picture information into the original picture signal, and performs one pixel density conversion. The unit 1o is for converting the pixel densities of the images of the scanner 4 and the plotter 5 and the image that can be transmitted by the destination terminal device, when the pixel densities of the images are different.

The image storage device 11 is for storing various information such as a transmitted image signal, transmitted image information, received image information, and received image signal.

ISDN? ,/tough z-circuit 1241 ISDN
The layer 1 signal control unit 13 performs the ISDN layer 1 signal processing function and the integration of the D channel (signal channel) signal and two B channel (information channel) signals. /It is equipped with a separation function.

The D channel transmission control unit 14 uses the D channel to
This is for performing transmission control processing such as call control processing with SDN, and C0DEC15 is for performing signal conversion processing of analog signal/digital data for transmitting analog signals using the B channel of ISDN. It is.

The B channel transmission control unit 16 controls the ISDN B channel (
This is for performing transmission control processing of layers 2, 3, 4, and 5 of the group 4 facsimile transmission control processing using the information channel).

The group 3 facsimile modem 17 is for realizing the group 3 facsimile modem function, and has a low speed modem function (V,
21 modem) and a high-speed modem function (V, 29 modem, V, 27ter modem) mainly for exchanging image information.

The switch 18 is used to switch and connect the CODEC 15 to either the group 3 facsimile modem 17, the handset 19 for calling, or the speaker 20 for outputting a ring tone or the like.

Control unit 1, system memory 2, parameter memory 3, character generator 4, clock circuit 5, scanner 6, plotter 7, operation display unit 8, encoding/decoding unit 9, pixel density conversion unit 10, image storage device 11, D Channel transmission control unit 14, C0DEC 15, B channel transmission control unit 16, group 3 facsimile modem 17°, and switching device 18
are connected to an internal bus 21, and exchange of various information between these elements is mainly performed via this internal bus 21. A hook signal FS, which alerts the hook state of the handset 19, is also applied to the CPUI via the internal bus 21.

Here, the ISDN address used in ISDN will be explained.

This ISDN address is for identifying the ISDN user/network interface, and as shown in Figure 2 (a), it includes an international ISDN number of up to 15 digits and a maximum of 4 digits.
Consists of a 0-digit ISDN subaddress.

Among these, the international ISDN number is used to identify each user/network interface, and the ISDN subaddress is used to identify each user/network interface of the same international ISDN number.
It is used to identify multiple terminal devices connected to the I interface.

In addition, the international ISDN number is as shown in (b) of the same figure.
A country code is used to identify each country. It consists of a domestic area code, a domestic destination number with a network identification function, and a subscriber number below the local number similar to a public telephone line.

Therefore, by checking the country code of this international ISDN number, it is possible to know the country in which the terminal device is installed.

In addition, as shown in FIG. 3, the system memory 2 also stores a country code-country name table that is configured by pairing a country code and a character string code of graphic characters to represent the country name of the country code. is memorized.

Here, the ISDN terminal such as this facsimile machine
The call setup/call release procedure performed with the ISDN during data transmission will be explained.

That is, as shown in FIG. 4, the originating terminal first sets the terminal functions to be used, and sends a call setup message 5ETUP specifying the destination terminal to the engineering SDN to set up a call with the destination terminal. 1) The SDN sends a call setting message 5ETUP in which identification information (ISDN address) of the originating terminal and terminal functions are set to the specified destination terminal, and makes a call. Further, the ISDN sends a call setup acceptance message CALLJROC to the originating terminal to notify the call setup status.

When the destination terminal detects an incoming call, it sends a paging message ALE to the ISDN if it is ready to receive the call.
RT is continuously sent at predetermined intervals, and the SDN sends a paging message ALERT to the calling terminal to notify that it has started calling the called terminal.

When the destination terminal responds to the incoming call, it sends a response message C0NN to I
The ISDN sends a response message C0NN to the calling terminal to notify that the called terminal has accepted the call.

In addition, the ISDN sends a response confirmation message C0 to the destination terminal.
NNJCK is sent and the response of the destination terminal is confirmed, at which point an information channel (B channel) for data transmission is established between the originating terminal and the destination terminal.

As a result, data transmission between the originating terminal and the destination terminal using the information channel is executed by the transmission ml control unit 1■ set to the transmission M&capability of each terminal.

When the data transmission is finished, the originating terminal sends a disconnection message DISC to the ISDN to request release of the information channel, and the ISDN sends a disconnection message DISC to the destination terminal to notify that the information channel has been restored.

As a result, when the destination terminal responds to the ISDN with a release message REL notifying completion of channel disconnection, the ISDN sends a release message REL to the originating terminal. When the channel release is completed, the originating terminal sends a release completion message RE.
L,,-COMP is sent to the ISDN to notify the ISDN, whereby the ISDN sends a release completion message REI,
By sending COMP to the destination terminal, the information channel is released, and the information channel set between the originating terminal and the destination terminal is completely released.

In this way, an information channel is set up between the originating terminal and the destination terminal, data transmission is performed, and when the data transmission is completed, the information channel is released.

In addition, each message for ISDN call setup is
As shown in Figure 5(a), a protocol identifier identifies the protocol specifications (format, sequence, etc.) that define the layer 3 call control message, and identifies which call the message is related to. message type to identify the content of each message, essential information elements that are always added to each message, and additional information elements that are added to each message as necessary.

Note that the required information elements can be 0 or 0 depending on the message type.
1. or multiple items are set, and the additional information element is
Depending on the situation, 0, 1, or a plurality of numbers are arranged.

As shown in FIG. 5B, the call setting message 5 ETUP has "transmission capability" as an essential information element, and additional information elements include, for example, "calling number" and r-layer number J.

It has information elements such as "low layer compatibility", "high layer compatibility", and "user to user".

An outline of these information elements will be explained below.

The "Transmission Capability" information element indicates the content of the information to be transmitted.

Audio, Unrestricted Digital Information, Restricted Digital Information, 3.1
Hz audio, 7KIIz audio, or
Information transfer ability that indicates which video is.

Transfer mode indicating whether the switching function to be used is circuit switching or packet switching, information transfer rate indicating the information transfer speed, information indicating the information transfer form, and information indicating the user information protocol. Consists of etc.

The "calling number" information element contains the international ISDN number of the calling terminal, and the "terminating number" information element contains the international ISDN number of the calling terminal.
Hail N number.

The "lower layer compatibility" information element is used to check the possibility of communication with a partner terminal, and its basic content is the same as the "transmission capability" information element.

Furthermore, this "lower layer compatibility" information element includes more detailed content.

The "higher layer compatibility" information element is used to check the compatibility with the other terminal, and is used for group 2/group 3 facsimile, group 4 facsimile, mixed mode, teletex, videotex, telex,
Alternatively, it displays which message handling system is provided as a terminal function.

The "User-User" information element is used to convey information between users, and the contents of this "User-User" information element are transparently transferred to the other user without being interpreted by the ISDN. communicated.

With the above configuration, this facsimile machine makes a call and r
When the call setup message 5ETUP is transmitted from the sDN, the process shown in FIG. 6 is performed.

In other words, the "transmission capability" of the call setup message 5ETUP
Check whether the originating terminal and the functions match by referring to the information element and, if added, the contents of the "low layer compatibility" information element and "high layer compatibility" information element (judgment) 101).

When the result of decision 101 is YES, it is checked whether the received call setup message 5ETUP includes a "calling number" information element (decision 102).

When the result of decision 102 is YES, it is checked whether the country code of the international ISDN number in the contents of the "calling number" information element is for an overseas country (decision 103).

When the result of judgment 103 is YES, the country code is referred to and the character string code data of the country name column corresponding to the country code is read from the country code-country name table (process 104).

Next, the image data constituting the graphic characters corresponding to the character string code data of the read country name column is sequentially read out from the character generator 4, and the image data is stored in the country name column recording buffer (process 105). This country name pillar recording buffer is for storing image data for the country name pillar image to be inserted into the received image.

Then, the above-described call setting procedure is executed to establish a communication path with the other terminal (process 106), and a pre-transmission procedure is performed to negotiate the transmission function (process 107).

Next, image information for one page is received, the image information is decoded into the original two signals by the encoding/decoding section 9, and the image signals are temporarily stored in the system memory 2 (processing 109).

Then, information on the current time is obtained from the clock circuit 5.

Image data constituting a graphic character for displaying the current time is sequentially read out from the character generator 4, and the image data is stored in the time recording buffer (process 110). This time recording buffer is for storing image data for inserting an image at the reception time into the received image.

In this way, when the image data is collected in the country name pillar record buffer and the time record buffer, additional information image data for recording the image data in a predetermined format is added, and the image data formed thereby According to
The image signal stored in the system memory 2 is replaced (processing 10).

As a result, the image data for one page is stored in the system memory 2, so the plotter 7 is commanded to start recording the image for one page, and the process of transferring the image data to the plotter 7 is started. start (process 112);
As a result, the plotter 7 records and outputs one page of received images.

Then, when receiving one page of image information.

It is checked whether the originating terminal has notified that there is a subsequent page (decision 113), and the result of determination 113 is YE.
When it becomes S, the process returns to step 108 and the image information of the primary page is received.

Furthermore, when the result of the judgment 113 is NO, the reception of one document has been completed, so a predetermined post-transmission procedure is executed to terminate the image information transmission. 114) Process to release the communication path of the B channel. 115), recover the call (
Process 116) ends one image information reception operation.

Also, if the call setup message 5ETUP does not include the "Calling number" information element and the result of judgment 102 is No, and if the country code of the international ISDN number in the "Calling number" information element is the country code of the home country. The result of judgment 103 is N.
When it becomes o, the above-described call setting procedure is executed to establish a communication path with the other terminal (process 117), and the pre-transmission procedure is performed to negotiate the transmission function (process 118).

Next, image information for one page is received, and the image information is decoded into the original image signal by the encoding/decoding section 9.

The image signal is temporarily stored in the system memory 2 (processing 1
19).

When the image data for one page is stored in the system memory 2,
The plotter 7 is commanded to start recording an image for one page, and a process of transferring the image data to the plotter 7 is started (process 120).

As a result, the plotter 7 records and outputs one page of received images.

When the image information for one page is received, it is checked whether the originating terminal has notified that there is a subsequent page (determination 121), and if the result of determination 121 is YES, the process returns to process 119. , receives image information for the next page.

Furthermore, when the result of judgment 121 is NO, the reception of one document has been completed, so the process moves to process 114 to complete the image information transmission, release the communication path of the B channel, and restore the call. conduct.

Further, if the received call setting message 5ETUP cannot be responded to, the call setting message 5ETUP is ignored (process 122).

In this way, in this embodiment, when a call is made from a facsimile machine overseas and image information is received, the received image includes an image that displays the name of the country where the other party's facsimile machine is installed, and an image that displays the name of the country where the other party's facsimile machine is installed. Since an image displaying the reception time is inserted, the operator who receives the reception image can clearly know the country where the other party's facsimile machine is located and the reception time in terms of time.

FIGS. 7(a) to 7(c) show an example of an image displaying the name of the country where the other party's facsimile machine is installed and an image displaying the reception time in the home country to be inserted into the received A image.

In the case of (a) in the same figure, on the right side of the image of the sending identification information that was originally added to the received image, in the upper right corner of the received image, there is a fixed message that says ``Overseas Call'' to indicate that the call is coming from overseas. image and a variable image that displays the country name.
``United Kingdom'' is displayed in a frame to emphasize it. Also, the reception time is the time when the call was received.
It is displayed with a fixed image "Incoming call" added.

In the case of (b) in the same figure, a "from" symbol indicating the country name of the transmitting terminal is placed one step below the image of the transmitting identification information.
A fixed image of ``m'', an image of ``United Kingdom'' that displays the country name, a fixed image of ``Japan Time'' that suggests that the time of the call was received due to an accident, and the reception time are arranged in a line. is displayed.

In the case of (c) in the same figure, at the bottom of the received image there is a fixed image similar to the one described above, ``Incoming overseas call'' and RF.
romJ, "United Kingdom" which displays the country name, "Japan Time" which is a fixed image similar to the above, and the reception time are displayed in a line.

By the way, in the above embodiment, the country name and reception time are displayed on the received image, but if it is not necessary to display the country name, the received image may be displayed in the format shown in FIG. 8(a), for example. All you have to do is add an image that notifies you that the image is being received from overseas.

Also, if only one country name needs to be LLa.

For example, an image displaying the country name of the other party's terminal may be added in a format as shown in FIG. 4(b).

You can also select any of these display formats,
In that case, the display format to be selected is specified by, for example, an operation from the operation display section 8. It is also possible to specify not to add the image.

In the above-described embodiments, the present invention is applied to an ISDN facsimile device, but the present invention can be similarly applied to other ISDN terminal devices.

[Effects of the Invention] As explained above, according to the present invention, when an overseas country code is included in the ISDN address of the calling number information element of the call setup message received at the time of incoming call, it is determined that the call is incoming from overseas. An identification image that displays the country code or an image that displays the name of the country with the country code is inserted into the received image, so the operator can clearly identify that the image was sent from an overseas facsimile machine. Obtain the effect of being able to recognize.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a facsimile machine according to an embodiment of the present invention, FIG. 2 is a schematic diagram for explaining an ISDN address, and FIG. 3 is a schematic diagram showing an example of a country code-country name table. , Fig. 4 is a time chart showing an example of a call setting procedure in ISDN, Fig. 5 (a) is a schematic diagram showing the format of a call setting message, and Fig. 5 (b) is an example of information elements of a call setting message. FIG. 6 is a flowchart showing an example of processing when a call is received, FIG. 7(a) is a schematic diagram showing an example of an image added to a received image, and FIG. A schematic diagram showing another example, the same figure (
C) is a schematic diagram showing yet another example of an image added to a received image, FIG. 8(a) is a schematic diagram showing another example of an image added to a received image, and FIG. FIG. 7 is a schematic diagram showing yet another example of an image to be added. 1...Control unit, 2...System memory. Figure Figure 1 Figure Figure 1 (a) (b)

Claims (2)

[Claims] (1) In an ISDN facsimile device equipped with a communication means for transmitting data using ISDN, if an overseas country code is included in the ISDN address of the calling number information element of the call setup message received at the time of incoming call, An ISDN facsimile apparatus characterized by comprising a control means for inserting an identification image indicating that a call is received into a received image. (2) In an ISDN facsimile device equipped with a communication means for transmitting data using ISDN, a country code-country name table that stores the relationship between the country code of an ISDN address and a character string code indicating the name of the corresponding country; , ISD of the calling number information element of the call setup message received at the time of termination.
When an overseas country code is included in the N address, the character string code of the country name corresponding to the country code is read from the above country code-country name table, and the image of the graphic character that displays the character string code is displayed. An ISDN facsimile machine characterized by comprising a control means for inserting into a received image.