KR100408300B1 - Real time fax transmitting limit method using dual lines function - Google Patents

Abstract

Method for limiting real-time fax transmission of a dual line fax apparatus having a first line, a second CPU for controlling transmission and reception of a first line and a second line, and a dual line control unit for interfacing between the first and second CPUs according to the present invention, When the user sets a fax transmission mode to the first CPU through a panel input unit, the first CPU transmitting a transmission mode and a counterpart fax number input by the user to the second CPU; The second CPU transmitting a fax number of the other party introduced through the connected second line to a fax security center and requesting a fax transmission permission; The FAX security center determines whether the received FAX side can be transmitted and transmits a FAX transmission permission authentication or a no signal to the second CPU; And transmitting, by the first CPU, image data to the other party's fax apparatus through the first line when a fax transmission permission authentication signal is received from the second CPU.

According to the present invention, when a fax transmission process is performed on one of the dual lines, that is, line 1, the fax user transmits the other party's fax number to the fax security center via the other line 2, obtains the transmission permission authentication, and then performs the transmission. You can check in real time whether transmission is possible.

Description

Real time fax transmitting limit method using dual lines function}

The present invention relates to a method for limiting real-time fax transmission, and more particularly, to a method for limiting real-time fax transmission using a dual line function in a system having a fax function for security.

1 is a flowchart illustrating a security maintenance method for fax transmission using a conventional dual line connected fax apparatus.

In general, as a method of maintaining the security of the image data transmitted from the fax machine, as shown in FIG. 1, the security manager registers transmission restriction information, that is, a fax number that cannot be transmitted and a fax number that requires a password, and then ( In step 100, when the user enters the other party's fax number when the user wants to send a fax (step 110), the fax apparatus checks whether the fax number is impossible to send and informs the user that the transmission is impossible through the display window (130). step). If it is not a fax number that cannot be transmitted, it is checked whether a password is required for password input (step 140). If a password is required, a password is requested through a display window and it is checked whether or not the password matches the registered password (150 to 150). Step 170). If the passwords match, the dual data transmits the image data through the corresponding line 1 or line 2 (step 180).

However, in the case of the transmission restriction method, when new security information is added to restrict transmission, the security administrator must input the fax restriction information in advance for each set of fax equipment. Resetting takes time, so there was a problem that fax transmission could not be properly limited in real time.

In addition, once the image data and the other party's fax number are transmitted to the fax security center before the image data is transmitted to the desired counterpart through each line of the dual line, the fax security center confirms the fax number information and then inquires the transmission. There is a transmission restriction method in which image data is sent back to the fax apparatus connected to the line, and the user's fax apparatus receives the image data and the transmission permission and then transmits the image data to the other party.

In the case of using the transmission restriction method by the FAX Security Center, after receiving the image data which takes a relatively long time in the line set in the FAX transmission mode to receive the transmission permission, the image data is transmitted to the Security Center and then received again. By transmitting back to the other side, there is a problem that the communication cost and time consuming.

The present invention was created in order to solve the above problems, it is possible to limit the transmission in real time even if you do not enter the transmission restriction information in the fax device, and to reduce the communication cost and time when the transmission authorization request to the fax security center The purpose of the present invention is to provide a method for restricting real-time fax transmission using the dual line function.

1 is a flowchart illustrating a security maintenance method in general fax transmission.

Figure 2 is a block diagram of a dual line fax machine for explaining a real-time fax transmission restriction method using the dual line function of the present invention.

FIG. 3 is a flowchart for explaining a method of restricting a fax transmission in the apparatus shown in FIG. 2.

Dual line fax device having a first line, a second CPU for controlling transmission and reception of the first line and the second line according to the present invention for achieving the above object, and a dual line control unit for interfacing between the first and second CPUs. To limit real-time fax transmission in

When the user sets a fax transmission mode to the first CPU through a panel input unit, the first CPU transmitting a transmission mode and a counterpart fax number input by the user to the second CPU;

The second CPU transmitting a fax number of the other party introduced through the connected second line to a fax security center and requesting a fax transmission permission;

The FAX security center determines whether the received FAX side can be transmitted and transmits a FAX transmission permission authentication or a no signal to the second CPU; And

And transmitting, by the first CPU, image data to the other party's fax apparatus through the first line when the FAX authorization permission signal is input from the second CPU.

The method may further include informing the user that fax transmission is impossible through the display unit of the fax apparatus when the fax transmission impossible signal is transmitted from the fax security center.

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

FIG. 2 is a block diagram of a dual line fax machine for explaining the real time transmission limiting method of the present invention, and FIG. 3 is a flowchart of the transmission limiting method in the apparatus shown in FIG.

First, the fax apparatus connected to the dual line shown in FIG. 3 scans or prints an original, and a master board unit 20 which processes transmission and reception of image data through line 1 and a slave which processes image data through line 2. The board part 22 is divided.

The master board unit 20 includes a first CPU 204 for overall control of the system according to a control program set in the first memory 210, a first modem 204 and a first interface interfaced with the first CPU 204. A panel input unit 20 having a first line interface unit (LIU) 214 for interfacing the modem 204 with a telephone line, a key matrix including a function key for setting various function keys, and a display unit for displaying an operation state of the system. When the transmission or copy mode is set from the panel input unit and the panel input unit 20, the scanner 206 and the first CPU 204, which are controlled by the first CPU 204, scan the characters or pictures on the input paper and convert them into image data. A first memory 210 that stores a control program controlled by the user, and also stores received or read image data, or temporarily stores data according to performance of a function provided by the system, and a first CUP of received or read image data. Control of 204 The printer 212 receives and prints, and the slave board unit 22 has an interface with a second CPU 224, a second modem 228, and a line 2 having a function corresponding to the components of the master board unit 20. A dual line controller 222 using a shared memory 226 to interface the slave board 22 and the master board 20 to control the dual line. It includes.

In the flowchart of FIG. 3, when the user sets the transmission mode by inputting the other party's fax number to be transmitted to the first line through the panel input unit 202 (step 300), the first CPU 204 of the master board unit 20 is inputted. The fax number is transmitted to the dual line controller 222.

The dual line controller 222 transfers the incoming fax number to the second CPU 224 in the slave board 22 and the fax number of the sender and the transmission mode signal (step 302). When the line connected to the master board unit 20 is called Line 1 and the line connected to the slave board unit 22 is called Line 2, the second CPU 224 receiving the fax number and the transmission mode signal receives the second modem. The transmission permission authentication request signal and the fax number converted from the digital signal into the analog signal are transmitted to the FAX security authentication center (not shown) via the line 2 through step 228 and the second LIU 234 (step 304).

The fax security authentication center determines whether a fax number can be transmitted by injecting a transmission permission authentication signal and a fax number (step 306), and if it is determined that transmission to the received fax number is possible (step 308), the FAX authentication signal is transmitted. The second LIU 234 of the slave board unit 22 is transmitted through the line 2.

The second CPU 224 of the slave side transmits a transmission permission authentication signal or a transmission not allowed signal introduced through the line 2 to the first CPU 204 of the master board unit 20 through the dual line controller 222 and the first CPU. In operation 204, if the incoming signal is a non-transmission signal, the display unit of the panel input unit 202 indicates that the transmission is impossible and informs the user.

In addition, when the signal flowing into the first CPU 204 is a transmission permission authentication signal, the scanner 206 is controlled to read image data of the input document and store the image data in the first memory 210 and then store the first modem 208. And the first LIU 214 to convert the analog signal and then transmit the image data to the other party's fax apparatus on Line 1.

The real-time transmission control method in a fax apparatus having a dual line according to the present invention is a counterpart side of a fax security center through another line 2 simultaneously or in advance when a fax transmission process is performed on one of the dual lines, that is, line 1. By sending a fax number and receiving a transmission authorization, the transmission can be performed in real time to check whether the fax user can send even if the transmission restriction information is not entered in the fax machine. Therefore, communication cost and time can be saved.

Claims (2)

In the real-time transmission control method in a dual line fax device having a first line, a second CPU for controlling transmission and reception of the first line and the second line, and a dual line control unit for interfacing between the first and the second CPU, When the user sets a fax transmission mode to the first CPU through a panel input unit, the first CPU transmitting a transmission mode and a counterpart fax number input by the user to the second CPU; The second CPU transmitting a fax number of the other party introduced through the connected second line to a fax security center and requesting a fax transmission permission; The FAX security center determines whether the received FAX side can be transmitted and transmits a FAX transmission permission authentication or a no signal to the second CPU; And And transmitting, by the first CPU, image data to the other party's fax apparatus through a first line when a fax transmission permission authentication signal is received from the second CPU. The method of claim 1, further comprising the step of informing the user that the fax transmission is impossible through the display unit of the fax device when the fax transmission signal is transmitted from the fax security center. Transmission control method.