JPH10322529A - Communication terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set access data reference inhibition beforehand and to prevent unauthorized access to a secret area by setting the reference permission /inhibition of access data for respective areas for a storage part storing the access data for respective memory areas. SOLUTION: When a mail box inside an image memory 4 is specified through a communication channel L, image data are confidentially received and stored. The stored image data are read by inputting an identification code decided for the mail box in an operation part 8 and recorded in a recording part 10. The mail box is specified by transmission access data from the channel L, and at the time of receiving the access data, a main control part 1 refers to the access data stored for the respective boxes inside a RAM 5, permits the access when both match and makes confidential reception to the box possible. Since an F code function is used for the access data, the mail box is specified by the respective signals of a sub address and a password in the pre-procedure of facsimile communication.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a communication terminal device having a memory area for storing a plurality of communication data, and capable of storing, referencing, and extracting communication data specifying each area.

[0002]

2. Description of the Related Art Conventionally, some facsimile apparatuses, which are one type of communication terminal apparatuses, have a confidential function. This confidential function is that when a confidential request is received from the sender,
The received image data is not printed out on recording paper, but is stored in a designated memory area called a confidential box.
Only when a predetermined password corresponding to the confidential box is input, the stored data is taken out and printed out. According to this,
Only a specific person who knows the password can know the contents of the image data, so that the confidentiality of the data can be maintained.

Further, recently, a standard for realizing this confidential function has been recommended (recommendation T.30). FIG.
Describes the communication procedure according to this standard. Here, a function called F-CODE (F code) is used to access a mailbox on the receiving side such as a confidential box. FIG. 6A shows that the calling side stores transmission data in the mailbox. If you do (confidential transmission),
FIG. 6B shows a case where the calling side receives data stored in the mailbox (polling reception).

In the confidential transmission shown in FIG. 6A, when the called side (receiving side) detects CNG (calling tone) (1), it sends out a CED (called station identification signal) (2). Subsequently, NSF (non-standard function signal), CSI (calling terminal identification signal) and DIS (digital identification signal) are transmitted (3). Then, PWD (password (transmission) signal), SUB (sub address signal),
TSI (transmission terminal identification signal) and DCS (digital command signal) are transmitted (4).

The transmission and reception of the signals in (3) and (4) fulfill the F code function, and the calling side (transmitting side) is
When the setting of the sub address capability and the password capability is detected from the inside, the password (PWD) and the sub address (SUB) are sent out as a response to access the called mailbox. Here, the sub-address is set in a one-to-one relationship with each mailbox in advance, and each mailbox is accessed (data storage, reference, and retrieval).
The password is data set in advance for each mailbox and used to restrict access to the mailbox.

[0006] That is, a mailbox is designated by a sub-address, but if the password transmitted at the same time does not match a preset password, access to the designated mailbox is prohibited. In addition,
Since a plurality of passwords can be set for one mailbox, access to the mailbox is permitted if any of the set passwords is transmitted. Also, since no password can be set, access to the mailbox can be permitted even when transmission without a password or when any password is transmitted.

Subsequently, upon receiving the TCF (training check signal) (5), the called side returns a CFR (reception preparation confirmation signal) (6) and receives the image data (PIX) (7). . The received data is stored in a mailbox specified by the subaddress and the access of which is permitted by the password. In this case, after receiving the image data, the MPS (multi-page signal) is received (8), the MCF (message confirmation signal) is returned (9), and the image data of the next page (second page) is received. (10).

Then, upon receiving EOP (procedure end signal) (11) and confirming that all image data has been received, MCF is returned (12) and DCN (disconnect command signal) is received (13). , End the communication. After that, the called side can input the predetermined password, retrieve the image data from the mailbox, and print out the image on recording paper.

On the other hand, in the case of the polling reception shown in FIG. 6B, when the called side (transmitting side) detects CNG, (2)
1) Send CED (22), followed by NSF, CS
I and DIS are sent (23). Then, for these signals, PWD (password (polling) signal),
SEP (selection polling signal), CIG (calling terminal identification signal), and DTC (digital transmission command signal) are transmitted (24).

The transmission and reception of the signals in (23) and (24) perform the F code function, and the calling side (receiving side) transmits
When the setting with the sub-address capability and the password capability is detected from within the IS, the setting with both capabilities is similarly performed in the DTC, and the password (P) for polling reception is set.
WD) and the selection polling signal (SEP) to access the mailbox.

Subsequently, the called side sends DCS and TCF (25) and (26), and receives CFR (27), and then sends image data (PIX) (28). The transmission data is specified by the subaddress and is extracted from the mailbox to which access is permitted by the selection polling signal. Here, after transmitting the image data, the MPS is transmitted (29), the MCF is returned (30), and the image data of the next page (second page) is transmitted (31). When transmission of all image data is completed, EOP is transmitted (32), and MCF is received (3).
3) Send DCN (34) and end communication.

[0012] In order to realize such communication, a sub-address (SUB) is provided for each mailbox on the called side.
And a password (PWD) are registered as access data. When a signal of a subaddress and a password is received from the calling side, the registered contents are referred to to determine whether to permit / prohibit access to the mailbox. I have.

[0013]

However, in the above-described conventional communication terminal device, anyone can display access data for judging permission / prohibition of access to a mailbox on a display device for all boxes. The access is prohibited because the data can be printed out on the recording paper or referred to, and even if the mailbox you want to keep confidential is based on the referenced access data, data storage, reference, etc. Could be done.

The present invention has been made in view of such circumstances, and has as its object to provide a communication terminal device capable of prohibiting access data access to each of a plurality of memory areas.

[0015]

According to a first aspect of the present invention, there is provided a communication terminal device, comprising: a storage unit for storing access data for each memory area; An operation unit for setting permission / prohibition for each area is provided, and access data to an area set to prohibition of reference by this operation unit cannot be referred to. With this,
By prohibiting access data reference, it is possible to prevent unauthorized access to an area that is to be kept secret.

Here, the memory area includes a mailbox and the like, and communication data is stored, and the stored data is referred to and taken out according to a designation from the calling side. In addition, the called side can display the stored data on a display unit or print out the data on a recording paper by key operation or the like so that the data can be referred to or taken out. The access data includes a sub-address number registered for each of the plurality of mailboxes,
There are password numbers.

According to a second aspect of the present invention, the access data stored in the storage unit of the first aspect is returned when a reference request from another communication terminal device through a communication line is received. At this time, only the access data for which reference permission is set by the operation unit may be returned, or all the access data for which reference permission / prohibition is set may be returned.

According to a third aspect of the present invention, in the first or second aspect, a password can be input from the operation unit or another communication terminal device, and the input password is determined in advance. When the password matches the password, the access data for all areas stored in the storage unit can be referred to. That is, by inputting a predetermined security code from the operation unit, all access data can be referred to, and if a signal of the predetermined security code is transmitted from another communication terminal device through a communication line. , You can see all access data.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a communication terminal device according to the present invention. here,
The configuration of the facsimile machine F is shown as an example,
The present invention is not limited to this, but includes a plurality of memory areas in the device, and stores, refers to, communication data specifying each area.
Any communication terminal device capable of taking out data may be used, and for example, a personal computer having a data communication function may be used.

In FIG. 1, reference numeral 1 denotes a CPU and the like.
A main control unit for controlling the following units, 2 is an NCU that performs network control such as transmission of a dial signal to the communication line L, 3 is a modem that modulates and demodulates signals for facsimile communication of image data, and 4 is An image memory that includes a plurality of memory areas as mailboxes and enables storage of image data in each mailbox; and a RAM that stores access data to each area in the image memory 4 as a storage unit of the present invention; 6 is a ROM storing a processing program in advance,
Reference numeral 7 denotes a display unit composed of a liquid crystal screen and LEDs, 8 denotes an operation unit composed of various operation keys and switches, 9 denotes a reading unit that reads image data of a set document, and 10 denotes image data on a recording paper. Is a recording unit that prints out. The main control unit 1 includes processing circuits for facsimile communication control, encoding / decoding of image data, and the like.

The facsimile apparatus F encodes image data read by the reading unit 9 and transmits the encoded image data through the communication line L, while decoding the image data received through the communication line L and prints out the image data from the recording unit 10. In operation, when one of the mailboxes in the image memory 4 is designated through the communication line L, confidential reception processing for storing image data in the designated mailbox is performed. The confidentially received image data is read out and recorded by the recording unit 10 only when a predetermined password is input to each mailbox by the operation unit 8.

The designation of the mailbox is performed by the access data transmitted through the communication line L. When the access data is received, the main control unit 1 sets the access data stored in the RAM 5 for each box. Referring to the data, if the two data match, access is permitted, and confidential reception in this box is enabled.
The access data includes a sub-address number and a password number registered corresponding to each of a plurality of mailboxes in order to use the F-code function. That is,
In a pre-procedure for facsimile communication, a mailbox is specified by a SUB (sub address signal) and a PWD (password signal), and access permission / prohibition is determined based on the mailbox (see FIG. 6A).

In addition to the confidential reception function, the mailbox has a polling reception function of receiving stored data using an F-code, a bulletin board function of enabling only reference of stored data, and other functions. It is also used for a relay function for temporarily storing data for relay transmission to a communication terminal device. In the present invention, the permission / prohibition of access to the access data stored in the RAM 5 can be set for each mailbox by operating the operation unit 8 in advance. With this setting, the access data for the mailbox set to be prohibited from being displayed is displayed on the display unit 7,
Since there is no printing output from the recording unit 10, it is possible to prevent unauthorized access to the mailbox that is desired to be kept secret.

Further, in order to refer to all the access data, it is possible to input a predetermined password from the operation unit 8. When the input personal identification code matches the personal identification code stored in the RAM 5 in advance, display of access data for all mailboxes on the display part 7 and / or recording by the recording part 10 are enabled. . As a result, only a specific person who knows the password can refer to all access data.

Further, by returning the access data stored in the RAM 5 when a reference request is received from another communication terminal device via the communication line L, access data from another communication terminal device can be referred to. And For example, if the other communication terminal device is a facsimile device,
The reference request may be set in the signal of the pre-procedure of the facsimile communication, and the access data to the facsimile apparatus F can be known from a remote place. Note that the access data returned at this time may be only data for which reference permission is set,
All data for which prohibition is set may be used. In the latter case, the reference-prohibited data is replaced with data such as hidden characters so that other communication terminal devices cannot refer to the data.

Also, when referring to the access data from another communication terminal device, a signal of a predetermined password is transmitted from the other communication terminal device through the communication line L in order to refer to all the access data. On condition. The transmitted security code is RA
When the password matches the password stored in M5, display of access data for all mailboxes on the display unit 7 and / or recording from the recording unit 10 is enabled.

FIG. 2 is a flowchart showing the operation of setting the reference permission / inhibition for the access data. Here, the mailbox is called an F-code box, and a sub-address and a password are registered as access data for the box number and the box name, and at the same time, whether access to the access data by list output is permitted or prohibited is determined. Is registered.

First, according to the instruction displayed on the display unit 7, access data is registered in each box by operating the operation unit 8 (100). Then, permission / prohibition of list output is registered for each box. When registration of output prohibition is registered, a secret code or a telephone number of the other party is entered together with access data in order to enable output only by a specific person. Register (101-103).

Here, the telephone number of the destination is registered.
This is because the telephone number of the other party is used as a personal identification code in response to a reference request for access data from another communication terminal device. The telephone number of the other party may be detected from the TSI (transmission terminal identification signal). When the detected telephone number matches the telephone number stored in the RAM 5 in advance,
Allows access data replies to all mailboxes.

FIG. 3 shows an example of a registration state of the access data. Here, a case is shown where only the box number “2” is registered as reference prohibition. If both or both of the security code and the other party's telephone number are registered, reference prohibition is registered. If neither is registered, the registration of the reference permission is performed. In this case, the security code and the telephone number of the other party are registered for each of the boxes for which the reference is prohibited, but one or a plurality of security codes and telephone numbers common to all the boxes for which the reference is prohibited are registered. You may make it register.

The sub-address number is data set in advance for each mailbox in a one-to-one manner, and is used for accessing (storing, referencing, and retrieving data) each mailbox. Is data set in advance for each mailbox and used for restricting access to the mailbox.

That is, although the mailbox is specified by the subaddress, the transmitted password is
If the password does not match the preset password, access to the specified mailbox is prohibited. Also, since a plurality of passwords can be set, access to the mailbox is permitted if the same password as any one of the preset passwords is transmitted. It is also possible not to set a password, as in box number “30”. In this case, even if a password is not sent or any password is sent, the mailbox will not be set. Allow access for

Next, the operation at the time of referring to the access data will be described with reference to the flowchart of FIG. here,
The user must input the personal identification code. When the input personal identification code matches the personal identification code stored in the RAM 5 in advance, reference of access data to all mailboxes is permitted. Permission is granted only to access data for which permission has been registered.

FIG. 4A shows a case where a password is input from the operation unit 8. By comparing the input personal identification code with a preset personal identification code, access data to be printed out from the recording unit 10 as a list is determined (200 to 204). FIG. 4B shows a case in which another communication terminal device (remote FAX) requests access data reference. Using a phone number as a PIN code,
By comparing the telephone number of the device that has made the reference request with a preset telephone number, access data returned via the communication line L is determined as list data (210 to 214).

FIG. 5 shows an example in which access data is output as a list. The F-code box list output from the recording unit 10 when no password is input or when the password input in FIG. 4A does not match the preset password. 13 shows an example of Lst. Also, this list Lst
Is an output of the contents of the access data shown in FIG. 3. The access data (sub-address number and password number) of the box in which reference prohibition is registered is “*”.
Is recorded.

Although the list recorded from the recording unit 10 is shown here, the data displayed on the display unit 7 and the data returned to another communication terminal device can also be in such a format. Even if a person who does not know the personal identification code refers to the access data, the access data of the box to be kept secret is not known, and this mailbox is not accessed for updating data.

[0037]

As can be understood from the above description, in the communication terminal device according to the first to third aspects of the present invention, reference permission / inhibition of access data for each of a plurality of memory areas can be set. If the access data for the area that is to be kept secret is set to prohibition of reference, the access data is used without permission and the data in this secret area is not updated or referred to.

In particular, according to the second aspect, access data for which permission / inhibition of reference has been set can be easily confirmed from a remote communication terminal device on the side of actually accessing through a communication line. According to the third aspect of the present invention, access data to all areas can be referred to only when a security code that matches a predetermined security code is input. Cannot access the area for which the reference prohibition is set, and data confidentiality is maintained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of a configuration of a communication terminal device of the present invention.

FIG. 2 is a flowchart showing a basic operation of the communication terminal device of the present invention (registration).

FIG. 3 is a diagram showing an example of a configuration of registered access data.

FIG. 4 is a flowchart showing a basic operation of the communication terminal device of the present invention (see FIG. 4).

FIG. 5 is a diagram illustrating an example of a configuration of access data referred to;

FIG. 6 is a diagram showing a communication procedure of the communication terminal device of the present invention.

[Explanation of symbols]

 F: communication terminal device (facsimile device) 1: main control unit 4: image memory 5: RAM 7: display unit 8: operation unit 10: recording unit L・ Communication line

Claims (3)

[Claims] A communication terminal device capable of storing, referencing, and retrieving communication data specifying respective areas of a plurality of memory areas, a storage section storing access data for each of the areas, A communication terminal device for setting access permission / prohibition of access data for each area, wherein access data to an area set to prohibit reference by the operation section cannot be referred to. . 2. The access data stored in the storage unit,
2. The communication terminal device according to claim 1, wherein when a reference request is received from another communication terminal device via a communication line, a reply is sent to the other communication terminal device. 3. A security code can be input from the operation unit or the other communication terminal device, and when the input security code matches a predetermined security code, the storage unit stores the security code. 3. The communication terminal device according to claim 1, wherein the access data for all the areas stored in the communication terminal can be referred to.