JPS63211843A - Confidential communication system for facsimile communication system - Google Patents

Abstract

PURPOSE:To prevent a confidential text from being observed by a wrong called subscriber even if the text is sent in error by transferring a confidential picture signal to a destination subscriber when a personal identification number for a sender and that for the destination subscriber are coincident. CONSTITUTION:In case of raising a confidential text reception request to receive a confidential communication text, a destination terminal equipment 1b dials the personal identification number of a sender terminal equipment 1a and the pass word of the destination terminal equipment 1b, and an exchange 2 uses a sender subscriber personal dentification number collating device 11 so as to collate the pass word registered in the sender subscriber data file 12 with the pass word to the sender terminal 1a inputted therewith. Moreover, a destination subscriber personal identification number collating device 3 collates the pass word registered in the destination subscriber data file 4 with the inputted personal identification number to the destination terminal 1b. When the pass words are coincident in both the collation devices 3, 11, the pass word of the sender subscriber is added together with the sender/destination subscriber numbers and sent to a facsimile store and forward exchange 14 via a confidential communication reception request signal controller 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication system for facsimile communication, particularly to a confidential communication system.

[Conventional technology]

FIG. 2 shows a conventional confidential communication method in a facsimile communication system. In the conventional confidential communication system, the sending terminal 1a, the exchange 2, . When the communication path between the facsimile reception control devices 8 is established, the facsimile reception control device 8 performs an image signal reception operation, and the facsimile control signal transmission and reception device 6 receives the destination subscriber number (in this case, the receiving terminal 1b). Receive. The central processing unit 5 of the facsimile storage/conversion device 15 stores the image signal from the transmitting terminal 1a into the confidential communication image signal file 9 corresponding to the destination subscriber number. after that,
The central processing unit 5 sends a notification image signal to the receiving terminal 1b from the facsimile transmission control unit 7 to the effect that a confidential call has been made. Thereupon, the receiving terminal 1b of the destination subscriber dials and sends the dial to the exchange 2 to request a confidential call reception operation. Switchboard 2
Then, the dialed-in password is compared with the password registered in the receiving subscriber data file 4, and if they match, the receiving terminal 1b, exchange 2, and facsimile transmission control device 7
A communication path is established between the two terminals, and a confidential communication image signal is received at the receiving terminal 1b.

[Problem that the invention seeks to solve]

As mentioned above, in the conventional confidential communication method of facsimile communication, as long as the receiving subscriber matches the PIN number corresponding to his/her terminal, he or she can freely retrieve the confidential communication even if it is not addressed to the subscriber himself/herself. It cannot be said that this is a communication method targeted at individuals in the sense of the term; in other words, even if a confidential call is received to the desired receiving terminal, if the receiving terminal's confidential reception pin number matches, the call may be received by an undesired subscriber. Strictly speaking, the drawback is that it is not a private communication method for individuals.

SUMMARY OF THE INVENTION An object of the present invention is to provide a confidential communication system for a facsimile communication system that solves these problems.

[Means for solving problems]

The present invention is directed to a secure communication system for a facsimile communication system in which a facsimile terminal, an exchange, and a facsimile storage/conversion device are connected. A picture signal file for confidential communication, a calling subscriber data file for registering the calling terminal's PIN, a receiving subscriber data file for registering the receiving terminal's PIN, and the calling terminal's PIN sent from the receiving terminal. an originating subscriber PIN number verification device that compares the PIN number of the terminating terminal sent from the terminating terminal with the PIN number registered in the terminating subscriber data file; and a receiving subscriber's personal identification number verification device that checks the personal identification number of the receiving subscriber when making a confidential call from the originating terminal. The receiving terminal sends the calling terminal's PIN number and the receiving terminal's PIN number to the exchange when sending a request for confidential reception, and the exchange transfers these PIN numbers to the calling subscriber's PIN number. Verify the subscriber number of the receiving terminal and the PIN number of the calling terminal to the facsimile storage and conversion device when there is a match in both the verification devices. The facsimile storage/conversion device is characterized in that it reads the confidential communication image signal file and transfers the confidential image signal to the receiving terminal.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a confidential communication system for facsimile communication, which is an embodiment of the present invention. In Figure 1, l
a is a facsimile terminal on the originating side, 1b is a facsimile terminal on the receiving side, 2 is an exchange, 3 is a called subscriber's PIN verification device, 4 is a called subscriber data file for registering the PIN for the called subscriber, and 5 is a facsimile storage/conversion device. The central processing unit of the device, 6 is a facsimile communication control signal transmitting/receiving device, 7 is a facsimile transmission control device, 8 is a facsimile reception control device, and 9 is a key information for the calling subscriber's PIN number corresponding to the destination subscriber number when making a confidential call. 10 is a confidential communication image signal control device that controls this file 9; 11 is a calling subscriber PIN verification device; and 12 is a calling subscriber that registers a PIN for the calling subscriber. A default file 13 is a confidential communication reception request signal control device that adds the calling subscriber's password together with the incoming subscriber information to control the confidential communication reception request signal. It consists of

In FIG. 1, due to the confidential call operation from the facsimile terminal 1a, the exchange 2 receives the facsimile terminal la,
．． After setting a communication path between the facsimile reception control devices 8, the facsimile reception control device 8 performs an image signal reception operation, while the facsimile communication control signal transmission and reception device 6 transmits the destination subscriber number (in this case, the receiving terminal 1b ). The central processing unit 5 stores a confidential image signal in the image signal file 9 for confidential communication using the PIN number of the calling terminal as key information, even if the destination terminal is not supported. After the storage is completed, the central processing unit 5 retrieves the destination called subscriber number previously received via the facsimile communication control signal transmitting/receiving device 6, and instructs the exchange 2 to establish a communication path to the called subscriber terminal 1b. Make a request.

After establishing the communication path, the central processing unit 5 transmits a notification to the receiving terminal 1b via the facsimile transmission control unit 7 that there is a confidential communication. When the receiving terminal 1b sends a confidential receipt request to receive a confidential message, it dials the PIN number for the calling terminal 1a and the PIN number for the receiving terminal 1b, and the exchange m2 dials the PIN number registered in the calling subscriber data file 12. The input subscriber password verification device 11 verifies the input password for the calling terminal 1a. Further, the terminating subscriber PIN verification device 3 verifies the PIN number registered in the terminating subscriber data file 4 and the input PIN number for the terminating terminal 1b.

When there is a match between the PIN numbers in both of these verification devices 3 and 11, the controller 1 adds the PIN number of the calling subscriber together with the calling subscriber number and sends a confidential communication receipt request signal to the control device 1.
3 to the facsimile storage and conversion device 14.

The central processing unit 5 reads the confidential communication image signal file 9 from the confidential communication image signal control device 0 using the transmitted incoming subscriber number and calling subscriber's PIN as key information, and reads the confidential communication image signal file 9 from the facsimile storage conversion device 14. ．． The image signal is transferred to the receiving terminal 1b via the communication path between the exchange 22 and the receiving terminal 1b.

〔Effect of the invention〕

As explained above, the present invention stores a confidential image signal in facsimile communication using the destination incoming subscriber number and the calling subscriber's PIN as key information, and when requesting confidential reception, the calling subscriber number entered by the subscriber is stored as key information. The PIN number for the subscriber and the PIN code for the called subscriber are compared with the PIN numbers registered in the data of each calling and called subscriber, and when they match, a confidential image signal is transferred to the destination called subscriber. As a result, even if a confidential message is sent to the wrong recipient, it will not be seen unless the recipient knows the calling subscriber's personal identification number. Furthermore, even if a person who is not the recipient of the confidential message retrieves the confidential message from the receiving subscriber terminal, the personal identification number will not be seen because the password is different, and this has the effect of providing good serviceability and convenience as a confidential service for individuals.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional confidential communication system. 1a...Calling side facsimile terminal 1b...Calling side facsimile terminal 2...Exchange 3...Calling subscriber's PIN verification device 4...Calling subscriber data file 5...Facsimile Central processing unit 6 of storage/conversion device...Signal transmission/reception device for facsimile communication control

Claims (1)

[Claims] (1) In a confidential communication system for a facsimile communication system that connects a facsimile terminal, an exchange, and a facsimile storage/conversion device, the confidential communication method stores image signals using the calling terminal's PIN as key information in correspondence with the subscriber number of the receiving terminal. A communication image signal file, a calling subscriber data file for registering the calling terminal's PIN, a receiving subscriber data file for registering the receiving terminal's PIN, and the calling terminal's PIN sent from the receiving terminal. , an originating subscriber PIN verification device that compares the PIN number registered in the originating subscriber data file with the PIN number of the terminating subscriber, which is sent from the terminating terminal; and a receiving subscriber's personal identification number verification device that checks the personal identification number of the receiving subscriber when making a confidential call from the calling terminal, and after storing the confidential image signal in the confidential communication image signal file, the facsimile storage conversion device Notify that there has been a confidential communication,
When the receiving terminal sends a confidential receipt request, it sends the calling terminal's PIN number and the terminating terminal's PIN number to the exchange, and the exchange verifies these PIN numbers with the calling subscriber PIN verification device and the terminating subscriber PIN verification device. When there is a match in both verification devices, the facsimile storage and conversion device sends the subscriber number of the receiving terminal and the pin number of the calling terminal to the facsimile storage and conversion device, and the facsimile storage and conversion device receives the confidential communication image signal. A confidential communication method for a facsimile communication system that is characterized by reading a file and transmitting a confidential image signal to a receiving terminal.