JPS61195076A - Facsimile transmitter - Google Patents

Abstract

PURPOSE:To prevent an information leakage to third parties by inhibiting a transmission to the communication line of a picture signal when coincidental output is not obtained by a comparison of the holding content of a transmission destination number holding register with that of a dial number holding register. CONSTITUTION:A digitized telephone number from a character reading part 1 where the transmission destination telephone number that is written on a facsimile transmission sheet is read and digitized is inputted and held at a transmission destination number holding register 2. Also, when a facsimile is transmitted and a connection with a transmission destination is executed by a telephone dial, a digitized dial information from a dial information inputting part 3 where th information of a telephone set dial is inputted and digitized is inputted and held at a dial number holding register 4. The outputs of register 2 and 4 are compared by a comparator 5. When the outputs of the comparator 5 not coincide, a transmission control circuit 7 inhibits the transmission of the picture signal to a call circuit. Thus, the information leakage to the third parties can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to facsimile transmitters. In particular, the present invention relates to transmission control of a facsimile transmitter to prevent transmission from being sent to a facsimile receiver different from the intended destination due to an erroneous dial operation on a telephone that connects to the facsimile receiver of the destination.

〔overview〕

The present invention provides a facsimile transmitter in which a facsimile transmission paper is set, a dial on a telephone is operated to connect to a destination facsimile receiver, and the information written on the facsimile transmission paper is transmitted. By comparing and matching the destination phone number entered in the phone with the dial signal output of the phone, if they match, the transmission continues, and if they do not match, the transmission is stopped, thereby preventing erroneous phone dialing operations. This prevents the information from being leaked to a third party by sending the information to the wrong destination.

[Conventional technology]

When transmitting information by facsimile, a facsimile transmission sheet containing the information is placed in a facsimile transmitter and connected to a facsimile receiver at the destination via a telephone. Once connected, the facsimile transmitter begins transmitting and information is transmitted. Recently, many receivers are equipped with an automatic reception method, and when a request is received from the sender,
Receive that information without restriction.

[Problem that the invention seeks to solve]

However, with such conventional facsimile transmitters, as mentioned above, there is no way for the sender to check whether the transmission is being sent to the intended destination. You end up sending information to different and incorrect destinations.

Therefore, there is a drawback that there is a risk that the information may be mistakenly known to a third party.

The present invention solves the above-mentioned drawbacks, and provides a facsimile transmitter that prevents information from being leaked to a third party by transmitting information to an incorrect destination even when dialing a telephone incorrectly. purpose.

[Means for solving problems]

The present invention includes a dial information input unit that manually enters a destination number, and a transmission control that performs connection control to a communication line based on this number and transmits an image signal read from facsimile transmission paper to this communication line. A facsimile transmitter comprising a circuit, a dial number holding register that temporarily holds the destination number input in the dial information input section as a digital signal, and a destination number written in a predetermined position on the facsimile transmission paper. optically read,
A character reading section that converts the number into a digital signal and sends it out, a destination number holding register that temporarily holds the digital signal sent out by this character reading section, and a holding register for this destination number holding register and the above-mentioned dial number holding register. and a comparison means for comparing the contents, and the transmission control circuit is characterized in that the transmission control circuit includes means for prohibiting transmission of the image signal to the communication line when there is no matching output from the comparison means.

[Effect]

According to the present invention, when a facsimile transmission sheet is set and a telephone dial is operated to establish a connection with a destination facsimile transmitter, the character reading section first reads the destination address written in a predetermined position on the facsimile transmission sheet. The telephone number is optically read, converted into a digital signal and sent out, and this digital signal is temporarily held in a destination number holding register. on the other hand,
The telephone number of the destination is input in the dial information input section, and this destination telephone number is temporarily held as a digital signal in the dial number holding register. Next, a comparison circuit compares and verifies the contents of the destination number holding register with the contents of the dial number holding register. If the comparison result in the transmission control circuit is a match, the transmission is continued; if the comparison result is a match, the transmission is stopped. As a result of the above, it is possible to prevent information from being transmitted to a wrong destination and leaking to a third party in the event of an incorrect dialing operation on the telephone.

〔Example〕

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

FIG. 1 is a block diagram of a transmission control section of a facsimile transmitter according to an embodiment of the present invention. FIG. 2 is a diagram showing the format of the facsimile transmission paper of the facsimile transmitter of the present invention, in which 11 is a frame for writing the destination telephone number, and 1
2 is the transmission information description range. In FIG. 1, the telephone number written in the box 11 for writing the destination telephone number on the facsimile transmission paper shown in FIG. The telephone number received is connected to the input of the destination number holding register and is held there. Also, when transmitting a facsimile, when connecting to the destination using the telephone dial, the telephone dial information is input and digitized (for example, the impulses generated by the dial are counted and converted to binary coded decimal code).Dial information input Digitized dial information from section 3 is connected to the input of dial number holding register 4 and held there. The output of destination number holding register 2 and the output of dial number holding register 4 are connected to respective inputs of comparison circuit 5, and the output of destination number holding register 2 and the output of dial number holding register 4 are compared. The match or mismatch signal from the comparator circuit 5 is connected to the inputs of a display circuit 6 and a transmitter circuit 7, which display the match or mismatch to the operator. The display circuit 6 displays a message such as "Continue sending" or "Sending" if they match, and displays a message such as "Destination dialing is incorrect" or "Check the dial again" if they do not match. (including sounding the buzzer). The transmission control circuit 7 controls the facsimile transmitter to continue when there is a match, and stops the facsimile transmitter when there is a mismatch.

The operation of such a facsimile transmitter will be explained. First, the telephone number of the destination is written in the telephone number entry box 11 of the facsimile transmission sheet shown in FIG. It is assumed that the transmission information has already been written on this facsimile transmission paper. Place the facsimile transmission paper in the facsimile transmitter and operate the dial on the telephone to connect to the destination facsimile receiver. At this time, the dial information input unit 3 shown in FIG. 1 inputs the output of the dial signal of the telephone. The dial information input section 3 converts the signal level to a signal level suitable for the circuit within the transmission control section, and counts the input impulse-like dial information using a binary counter. For example, when the rOJ is operated for the first time in the case of Tokyo area code "03", 10 impulses are transmitted, so the counter counts "1o". When counting is completed, the contents of the counter are transferred to the dial number holding register 4. The dial number holding register 4 is composed of a binary coded decimal storage circuit having the same number of digits as the telephone number. Similarly, the dial information input section 3 counts the three impulses transmitted when the area code "3" is operated, and outputs the output of the counter to the dial number holding register 4. The dial number holding register 4 holds the second dial number in the second digit binary coded decimal storage circuit. Similarly, all the numerical values of the telephone number obtained by dialing the destination telephone are stored in the dialed number holding register 4.

Next, in order to transmit the information set on the facsimile transmitter, a "send" instruction is given to the transmitter, and the facsimile transmitter scans the facsimile transmission paper and starts transmission. As the scanning progresses, the character reading section 1 reads the telephone number written in the destination telephone number enlarged frame, digitizes it (converts it into a binary coded decimal code), and sets it in the destination number holding register 2. The destination number holding register has memory circuits equal to the number of digits of the telephone number.

The contents of destination number register 2 are sent to comparison circuit 5.

It is set in the dial number holding register 4 first.

The telephone number dialed is also sent to the comparison circuit 5,
The contents of both registers, that is, the telephone number written on the facsimile transmission paper and the dialed telephone number are compared.

As a result of the comparison, if they match, the comparison circuit 5 outputs a match signal, and if they do not match, it outputs a mismatch signal. The match signal or mismatch signal is sent to display circuit 6 and transmission control circuit 7. If a match signal is output, the display circuit 6 displays "continue transmission" to the operator, informing the operator that the number written on the facsimile transmission paper and the dialed number match.

At the same time, the transmission control circuit 7 controls the facsimile transmission to continue, and the transmission is performed. If a mismatch signal is output, the display circuit 6 notifies the operator that the telephone number written on the facsimile transmission paper and the dialed telephone number do not match by displaying "Destination dialing is incorrect" and sounding a buzzer. . At the same time, the transmission control circuit 7 controls the facsimile transmission to be stopped.

As mentioned above, before sending a facsimile, a check is made to see if the destination's phone number written on the sending paper matches the phone number dialed for connection, so there is no possibility that the fax will be sent to an unintended destination. In other words, information can be prevented from leaking.

〔Effect of the invention〕

As explained above, the present invention is capable of checking whether or not the facsimile is being sent to the intended destination indicated by the telephone number written on the facsimile transmission sheet before transmission, and continuing or stopping the transmission. It has an excellent effect of preventing information from being leaked to third parties.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a transmission control section of a facsimile transmitter according to an embodiment of the present invention. FIG. 2 is a diagram showing the format of the facsimile transmitter of the present invention. DESCRIPTION OF SYMBOLS 1... Character reading section, 2... Destination number holding register, 3... Dial information input section, 4... Dial number holding register, 5... Comparison circuit, 6... Display circuit, 7... Transmission control circuit, 11... Destination telephone number entry frame, 12... Transmission information description range.

Claims (1)

[Claims] (1) A dial information input section for inputting the destination number, and controlling the connection to the communication line based on this number;
In a facsimile transmitter equipped with a transmission control circuit that transmits an image signal read from facsimile transmission paper to this communication line, a dial number that temporarily holds the destination number input in the dial information input section as a digital signal. A holding register, a character reading section that optically reads the destination number written in a predetermined position on the facsimile transmission paper, converts the number into a digital signal and sends it out, and a digital signal sent out by the character reading section. The transmission control circuit includes a destination number holding register that is temporarily held, and a comparison means that compares the contents held in the destination number holding register and the dial number holding register, and the transmission control circuit is configured to perform a process when there is no matching output in the comparison means. A facsimile transmitter characterized in that it includes means for prohibiting transmission of image signals to communications.