JPH0654934B2 - Fax machine - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine, and more particularly to a facsimile machine configured to audibly monitor a communication state.

[Prior art]

There are various methods for failure diagnosis of the facsimile machine, and one of them is a method of monitoring the signal being communicated by the facsimile machine.

However, the Facsimile device generally does not have the function of exchanging a signal being communicated with an audible tone.

Therefore, a separate tester must be connected to the fax machine when it is desired to audibly monitor the signal being communicated.

A conventional example in which such a structure is adopted is shown in FIG.

In FIG. 1, reference numeral 1 indicates a line, which is connected to the network control device 2.

The network control device 2 is connected to the telephone 2a and the modem 3
It is connected to the CPU (central processing unit) 4 via.

Reference numeral 5 is a document reading section, reference numeral 6 is a received image information recording section, and reference numeral 7 is a memory.

Each of these parts is controlled by the CPU 4.

On the other hand, the reference numeral 8 is a tester, which is also controlled by the CPU 4 and has a role of extracting a signal during communication.

The output from the tester 8 is amplified by the amplifier 9 and can be monitored as an audible sound through the speaker 10.

However, when such a structure is adopted, there is a drawback that a completely separate testing machine is required, which not only becomes economically burdensome, but also the connecting work of the testing machine is extremely complicated.

〔Purpose〕

An object of the present invention is to provide a facsimile device which can confirm whether the other party is a person or a facsimile device when the device is used for both a telephone and a facsimile.

Therefore, it is possible to output the signal on the line as an audible sound from the speaker. However, if the signal on the line is always output from the speaker, the image signal is output from the speaker during the facsimile communication, and the unpleasant sound is continuously output.

When using the device exclusively for facsimile,
Sometimes you don't have to identify the other person. Even in that case, if the signal on the line is output from the speaker, an unpleasant sound is also output.

The present invention solves the above-mentioned problems, and it is possible to set whether or not to output the signal on the line from the monitor means as well as to simply output the signal on the line as an audible sound from the monitor means. It is an object of the present invention to provide a facsimile apparatus that monitors a signal on a line for a predetermined period after the start of communication when the signal is monitored by the monitoring means.

〔Example〕

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

[First Embodiment] FIG. 2 illustrates a first embodiment of the present invention. In the drawing, the same or corresponding parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted.

In the figure, reference numeral SW1 is a switch connected between the network control device 2 and the amplifier 9, which determines whether or not the signal being communicated is sent to the amplifier.
Opening and closing of 1 is controlled by another switch SW2.

Since the present embodiment is configured as described above, if the switch SW1 is turned on by the switch SW2, the signal being communicated can be monitored by the speaker 10 via the amplifier 9, which is simple. Fault diagnosis can be performed.

The specific control of this embodiment is performed as shown in the flow chart of FIG.

That is, after initialization is performed in step S1, it is determined in step S2 whether or not the switch SW2 is turned on.

Then, if it is on, the switch SW1 is closed in step S3, and if it is not on, the switch SW1 is opened and the control ends.

On the other hand, if the switch SW1 is closed, the process proceeds to step S5, the signal during communication of transmission or reception is monitored, and the process proceeds to step S6.

In step S6, it is determined whether or not a fixed time for monitoring has elapsed. If it has elapsed, the control ends, and if it has not elapsed, the monitoring operation continues.

[Second Embodiment] FIG. 4 illustrates a second embodiment of the present invention. In this embodiment, the switch SW1 is configured to be controlled by the CPU 4, and the monitor is A control switch SW2 for deciding whether or not to execute is connected to the CPU 4 side.

Since the present embodiment is configured as described above, when it is desired to audibly monitor the signal during communication, when the switch SW2 is turned on, the CPU 4 detects this state and the switch SW1 is turned on. To do.

Even if the switch SW1 is controlled by the CPU 4 as described above, the signal being communicated can be audibly monitored as in the first embodiment.

[Third Embodiment] FIG. 5 explains a third embodiment of the present invention, and shows a case where signal lines are separate for transmission and reception.

In this embodiment, the switch SW1 is under the control of the CPU 4 as in the second embodiment.

An amplifier 12 is also connected to a signal line for transmission between the switch SW1 and the network control device 2 and a signal line for transmission between the amplifier and the modem 3.

The control operation when such a structure is adopted is performed as shown in FIG.

That is, it is determined whether or not the switch SW2, which determines whether or not to perform monitoring in step R1, is on, whether during transmission or during reception.

If it is not on, the control is terminated, and if it is on, the switch SW1 is closed at step R2, the signal during communication of transmission or reception is monitored at step R3, the process proceeds to R4, and the monitor is kept constant. It is determined whether or not the process has been performed until the time has elapsed.

When the fixed time has not elapsed, the above operation is repeated, and when the fixed time has elapsed, the routine proceeds to step R5, the switch SW1 is opened, and the control ends.

Even if such a structure is adopted, the signal tone being communicated can be audibly monitored as in the above-described embodiment.

〔effect〕

As is apparent from the above description, according to the present invention, the operator is provided with the setting means for setting whether or not the signal on the line is to be monitored, and according to the setting of the setting means, the monitor means is provided with the signal on the line. If it is set not to monitor, the signal is not supplied from the supply means to the monitor means, and if the signal on the line is monitored, the signal is supplied from the supply means to the monitor means to start communication. Since the signal supply to the monitoring means is stopped after the elapse of a predetermined period from, the device can be used exclusively for the facsimile, and if there is no need to monitor the signal on the line, it is possible to avoid hearing a jarring sound. On the other hand, if the device is used as both a telephone and a facsimile and it is necessary to monitor the signal on the line, the type of the other party can be confirmed, and the facsimile communication start status can be confirmed. Can, moreover, there is no need to hear over a long period of time the harsh sound, there is an excellent effect that it is not necessary to perform the unnecessary monitor.

[Brief description of drawings]

FIG. 1 is a block diagram for explaining the conventional structure, FIG. 2 is a block diagram for showing the first embodiment of the present invention, FIG. 3 is a flow chart for explaining the control operation of the first embodiment, and FIG. FIG. 5 is a block diagram for explaining the second embodiment of the present invention, FIG. 5 is a block diagram for explaining the third embodiment of the present invention, and FIG. 6 is a flow for explaining the control operation of the third embodiment. It is a chart. 1 ... Line, 2 ... Network control device 3 ... Modem, 4 ... CPU 5 ... Reading unit, 6 ... Recording unit 7 ... Memory, 9 ... Amplifier 10 ... Speaker, SW1, SW2 ... Switch

Claims (1)

[Claims] 1. A modem for demodulating an image signal and a procedure signal for receiving via a public line, monitor means for audibly monitoring a signal received by the modem and coming from the public line, and the monitor. Setting means for setting whether or not the means is to monitor the signal received from the public line, supply means for supplying the signal received from the public line to the monitor means, and the public line to the monitor means by the setting means When it is set not to monitor the signal received from the monitor unit, the supply unit controls the monitor unit not to supply the signal to the monitor unit. On the other hand, the setting unit receives the monitor unit from the public line. When it is set to monitor a signal, the supply means is controlled so that the monitor means receives a signal from a public line for a predetermined period from the start of communication. Facsimile apparatus characterized by comprising a control means for the signal supplied to the controls to stop the signal supply to the predetermined period of time has elapsed after the monitoring means.