JPS5927664A - Facsimile device - Google Patents

Abstract

PURPOSE:To monitor a voice band signal transmitted during the facsimile communication, by connecting an operator call voicing means to a telephone line via a high impedance circuit and a band pass filter. CONSTITUTION:A changeover switch 6 is selected to the position of a control section 3 when the conventional facsimile communication is in use and the operator call signal is applied to a speaker 8. On the other hand, in case of the maintenance service, the switch 6 is selected to the position of a filter 5, and a voice band signal incoming in superimposing on a facsimile signal via the high impedance input circuit 4, and the band pass filter 5 during the facsimile communication is separated and extracted from the facsimile signal, and outputted from the speaker 8.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a facsimile machine, and particularly to a facsimile machine that increases service and maintenance functions through a simple one-step process.

Generally, facsimile machines perform facsimile communication via telephone lines, and the frequency band of telephone lines is
300 [7, ~3. It uses a narrow frequency band of Q KHz that allows the content of communication to be monitored as voice.

On the other hand, especially in analogue facsimile communication, the communication procedure is adjusted by the frequency of the sine wave, so the communication procedure can be monitored and adjusted sufficiently by the voice monitor, but during facsimile communication, Since the 11th line has been switched to the facsimile machine side, it is no longer possible to supply the telephone with an audio signal for adjusting communication procedures. Further, conventional facsimile machines do not have a voice monitoring function for adjusting communication procedures, and have the disadvantage that other measuring equipment capable of voice monitoring must be prepared for maintenance or troubleshooting.

SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the above-mentioned drawbacks of the prior art, and to make it possible to monitor voice band signals from a telephone line by utilizing a voice means for operator calls that is already provided in a facsimile machine. An object of the present invention is to provide a facsimile device which can also perform recording according to the user's needs.

The present invention will be described in detail below with reference to the drawings.

An example of the configuration of a facsimile machine according to the present invention is shown in FIG. In the configuration shown! 1. When performing normal facsimile communication, the telephone line is connected by relay IO in the network control circuit l.
A telephone set 9 is switched and connected to a modulation/demodulation circuit (modem) 2 for a facsimile machine. However, the modulation and demodulation circuit v
'The I-coder demodulates the signal from the telephone line or modulates the carrier signal with the signal from the control unit 3 and sends it out to the telephone line, and during facsimile communication, there is a possibility that an error may occur or the communication may be terminated. In order to notify the operator of such information, the control section 3 outputs an operator call signal each time, and the signal is emitted from the speaker g via the changeover switch 6 and the speaker amplifier. That is, when the facsimile machine is in use for normal facsimile communication, the changeover switch 6 is connected to the control unit 3, and an operator call signal is supplied to the speaker g.On the other hand, during maintenance service If the selector switch 6 is connected to the bandpass filter S as necessary, the input signal will be superimposed on the facsimile signal during facsimile communication via the high impedance input circuit y and the bandpass filter S. The voice band signal can be separated and extracted from the facsimile signal and emitted from the speaker g. The selector switch 6 is controlled by the output signal of the high-impedance input circuit q itself, so that when voice band signals are superimposed on the telephone line and simultaneously enter, the selector switch 6 is automatically switched to the bandpass filter s side. It is also possible to switch the connection. It is also possible to provide a recording terminal // on the output side of the speaker amplifier 7 and record the audio band signal.

In the above configuration example, the voice band signal from the telephone line is directly monitored, but depending on the configuration of the modulation/demodulation circuit, the transmitter, or modulator, and the receiver, or demodulator, may be provided independently of each other. It is also possible to operate each separately. In that case, a bandpass filter or automatic gain control (
By supplying the voice band signal that has passed through the AGC (AGC) circuit and which has come in from the telephone line via the network control circuit/ to the speaker g via the changeover switch 6, the same eyebrow shaping effect as that achieved by the above-mentioned configuration can be achieved. You can also get it.

As is clear from the above description, according to the present invention, by simply changing the circuit configuration of a facsimile machine, it is possible to acquire the function of monitoring voice band signals transmitted over a telephone line during facsimile communication. In addition, by providing a recording terminal, you can keep a record of any problems that occur before you prepare a special measuring device! - It is possible to quickly perform emergency treatment for troubles.

[Brief explanation of the drawing]

FIG. 1 is a four-way diagram showing an example of the configuration of a facsimile IJ apparatus according to the present invention. l...Network control circuit, λ...modulation/demodulation circuit, 3...control unit, D...high impedance input circuit, S...bandpass filter, 6...changeover switch, ? ...speaker amplifier, g...speaker, ? ...Telephone, 10...Switch, l/...Recording terminal. Patent applicant Canon Co., Ltd.

Claims (1)

[Claims] A facsimile device characterized in that it is possible to monitor a voice band signal from a telephone line during facsimile communication by using a voice unit for an oherator call.