JPH01305653A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To attain pass-word communication function even with reception from a device, which does not have the analyzing and sending function of a prescribed procedure signal, by canceling pass-word check function by opponent pass-word data, which are included in the procedure signal, with using a pass- word signal by a PB signal. CONSTITUTION:Before the giving and receiving of the order signal, when a PB pass-word detecting circuit 24 detects the pass-word signal by the PB signal from an opponent equipment, the pass-word signal is sent to a second comparing circuit 26 and compared with self-pass-word data. Then, when the signal is coincident with the data, a switch 27 is disconnected. When they are not coincident, the switch is connected. Accordingly, when the pass-word signal by the PB signal is coincident, regardless of the coincidence of noncoincidence between the opponent pass-word data and self-pass-word data in the order signal, a noncoincidence signal PBNG does not arrive at a receiving order control circuit 23 but communication procedure continues and moves to the reception of a picture signal. Thus, the pass-word communication function can be executed even if the condition is not between the devices of a same maker which can decode and send a non-standard signal.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile device, and more particularly to a facsimile device that sends and receives procedure signals in accordance with CCITT Recommendation T3 Recommendation Type 30 prior to communication of image signals.

[Conventional technology]

Most conventional facsimile machines have an automatic reception function, which is a well-known technology, and if the device is set to automatic reception mode, it will automatically start up with a ring signal and start receiving regardless of the recipient. The receiving side may also receive unnecessary information. In particular, when the number of tie-left mails that are increasing these days is being sent frequently, relatively expensive recording paper is wasted, and necessary information is not being sent or received, especially when a call is busy.

[Problem to be solved by the invention]

In the conventional facsimile machine described above, as a countermeasure to the above problem, a password is set on both the sending and receiving sides, and this password is set in a non-standard signal of the CCITT recommendation T3 recommendation procedure signal, and the password does not match. Some devices are equipped with a password communication function that interrupts communication and prevents image signals from being received.

However, since the password communication function uses non-standard signals, its effective range is limited to communication between devices of the same manufacturer that decode and transmit the same signals.

[Means to solve the problem]

The facsimile device of the present invention is activated by a paging signal from a calling party, and, in accordance with CCJTT Recommendation 1-30, exchanges a procedure signal with the calling party prior to communicating an image signal, and sends and receives a procedure signal to the party included in the procedure signal. a reception procedure control circuit that detects password data and prohibits reception of the image signal when a mismatch signal is received; and a reception procedure control circuit that compares the other party's password data with a preset self-pass-to-data, and when the comparison result is a mismatch, the above-mentioned a first comparison circuit that outputs a mismatch signal;
a PB password detection circuit that detects a password based on a PB double signal from the calling side; and a path for comparing the password and the self-password data, and when the comparison results match, the mismatch signal to the reception procedure control circuit. and a second comparison circuit that shuts off.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

As shown in FIG.
The reception procedure control circuit 23 detects the calling signal RNG from
Start. The receiving procedure control circuit 23 exchanges procedure signals with the calling party's machine (not shown) via the modem 21, detects the party's password data included in the procedure signal as a non-standard signal, and sends it to the first comparison circuit. Send on 25th. The comparison port 1i 1825 compares the other party's password data with the self-password data set in advance in the self-password 1 to setting circuit 28 and supplied to the comparison circuit 25, and if they do not match, the data is sent to the reception procedure control circuit 23 through the switch 27. Send a mismatch signal PSNG. When the reception procedure control circuit 23 detects the mismatch signal PSNG, it interrupts communication and does not receive the image signal.

On the other hand, if the PB password detection circuit 24 detects a password signal based on the PB double signal from the other party's device prior to exchanging the procedure signals described above, this password signal is
The signal is sent to the comparison circuit 26. Comparison circuit 26 compares the password signal and self-password data, turns off switch 27 when they match, and turns on switch 27 when they do not match.

As a result of the above operation, if the password signals based on the PB double signal match, the mismatch signal PSNG, regardless of whether the other party's password data in the procedure signal and the own password data match or do not reach the reception procedure control circuit 23. First, the communication procedure continues and the process moves to receiving the image signal. Further, if the password signal from the PB double signal does not match or is not received, the communication procedure is interrupted and the image signal is not received only if it does not match the password data of the other party in the procedure signal.

〔Effect of the invention〕

As explained above, the present invention does not have the function of analyzing and sending a specific procedure signal by canceling the password check function based on the other party's password data included in the procedure signal using the password signal based on the PB double signal. This has the effect of realizing a password communication function even when receiving data from a device.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention. 10...V〆line, 2]...Modem, 22...Call signal detection circuit, 23 -Reception procedure control circuit, 24...P
B password detection circuit, 25.26 ・Comparison circuit, 27
... switch, 28 ... self-password setting circuit,
PSNG/mismatch signal, RNG/discharge signal.

Claims (1)

[Claims] It is activated by a paging signal from the calling party and complies with CCITT Recommendation T3.
0, prior to communication of the image signal, a procedure signal is exchanged with the calling party, and when the other party's password data included in the procedure signal is detected and a mismatch signal is received, reception of the image signal is prohibited. a procedure control circuit; a first comparison circuit that compares the other party's password data with preset self-password data and outputs the disagreement signal when the comparison result does not match; and a first comparison circuit that outputs the disagreement signal when the comparison result does not match; A second comparison circuit that compares the password with the self-password data and blocks the path of the mismatch signal to the reception procedure control circuit when the comparison result matches. A facsimile device featuring: