JPH01286561A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To evade troublesome manual switching by switching the talking mode and the facsimile mode automatically in response to the calling opposite party. CONSTITUTION:A facsimile equipment 10 is connected to a telephone line network 20 and a general talking telephone set 21 and other facsimile equipment 22 are connected to the telephone line network 20. If a voice signal is detected till the transmission of a DIS signal for the start of facsimile transmission after connecting the line, the talking mode is informed and when no voice signal is detected, the DIS signal is outputted to proceed the facsimile reception processing. Thus, the talking mode and the facsimile mode are switched automatically depending on the opposite party. Thus, the trouble of manual switching for each occasion is evaded.

Description

[Detailed Description of the Invention] Summary of the Invention DIS for starting facsimile transmission after line connection
If an audio signal is detected before the signal is transmitted, it will notify you that it is in call mode.

If no audio signal is detected, a DIS signal is output and the process proceeds to facsimile reception processing. Thereby, the call mode and facsimile mode are automatically switched depending on the other party.

BACKGROUND TECHNICAL FIELD OF THE INVENTION The present invention relates to a facsimile machine that decomposes a picture, character, photograph, etc. into a large number of pixels, converts it into an electrical signal, and transmits it to the receiving side, thereby reproducing a received image on the receiving side that is similar to the transmitted original image. Regarding.

BACKGROUND OF THE INVENTION 2. Description of the Related Art Facsimile machines using telephone networks have rapidly become popular in recent years, in which facsimile communications are carried out between subscribers through dial calls using subscriber telephone networks. Facsimile devices that use telephone networks include those that are exclusively used for facsimile and those that can be used for both two calls and facsimile transmission. Facsimile-only devices require a facsimile line in addition to a regular phone for making calls. Devices that can be used for both telephone calls and facsimile transmissions are those that can be manually switched to call mode or facsimile mode as necessary; can.

However, conventional devices capable of both telephone calls and facsimile transmission cannot recognize whether a dial call from the other party is from a telephone for telephone calls or from a facsimile machine.

Therefore, in order to receive a facsimile transmission signal when switched to call mode, the sender must first notify the sender by phone that a facsimile transmission is to be made.
You need to manually switch to fax mode. Furthermore, if the mode is switched to facsimile mode, the DIS signal is transmitted after one line is connected, which confuses the other party when calling from a single-call telephone.

SUMMARY OF THE INVENTION OBJECTS OF THE INVENTION An object of the present invention is to provide a facsimile device that can automatically switch between a call mode and a facsimile mode depending on the person who is calling.

Structure of the Invention 1 Operation and Effect The facsimile device according to the present invention, after connecting two lines,
facsimile start response output means for outputting a response signal for starting facsimile transmission; voice detection means for detecting that a voice signal is included in the received signal; and facsimile reception means 1 to notify that the call mode has been set. means for determining whether or not a voice is detected by the voice detection means during the period after the first line is connected and before the facsimile start response output means outputs a response signal; The apparatus is characterized by comprising control means for setting the apparatus to cause the notification means to issue a notification, and when no voice is detected by the voice detection means, to set a facsimile mode and to cause the facsimile reception means to proceed to facsimile reception processing. do.

According to this invention, after the line is connected by dialing from the other party, a facsimile start response signal (for example, D
Before transmitting the IS signal), the audio signal (for example,
When it detects that a voice signal saying "hello" is received, it assumes that the calling party is a telephone for making calls, and that the line has been connected by that call, and sets the call mode and notifies that fact. Therefore, the called party can make a call by picking up the handset. If no voice signal is detected during the above-mentioned period of time, it is assumed that the calling party is a facsimile machine, and a line connection is established by the subsequent call, and the facsimile mode is set and the facsimile transmission/reception is started. send a response signal for As a result, facsimile transmission and reception are performed between the calling party and the called party.

As described above, the call mode and facsimile mode are automatically switched depending on the state of the call from the calling party, so there is no need to manually switch the mode each time as in the past. You can take advantage of both calling and facsimile transmission functions.

DESCRIPTION OF THE EMBODIMENTS FIG. 1 is a block diagram showing the configuration of a facsimile machine using a telephone network.

Facsimile machine 10 is connected to telephone line network 20 . A general telephone 21 for telephone calls, another facsimile machine 22, etc. are connected to the telephone line network 20.

The control device 11 controls the entire operation of the facsimile device IO, and includes a switching section 13 . Voice recognition and voice response unit 14. Facsimile transmitter/receiver 1B and alarm 17
Outputs a control signal to. It also receives signals from the voice recognition and voice response section 14 and the facsimile transmission/reception section 1B. The control device 11 is a CPU.

It consists of memory, interface circuits, etc.

The telephone I2 is used to connect the facsimile device 1O to a desired other telephone or facsimile device, or to receive calls from other telephones or facsimile devices, and has functions such as off-hook, on-hook, and dialing. Telephone 12 is connected to control device 11 and switching section 13 .

A switching section 13 is provided between the telephone set 12, a voice recognition and voice response section 14, a handset 15, and a facsimile transmission/reception section 16. The switching unit 13 is the control device 1
1 under the control of a telephone 12 and a voice recognition and voice response unit 14. Handset 15 and facsimile transmitter/receiver 16
It connects any one, or in some cases, two or three of them, and switches this connection.

The voice recognition and voice response section 14 has a voice detection function and a voice output function.

The human voice (voice) has a frequency range of about 100 to 20,000 Hz. The voice recognition section is composed of, for example, a filter circuit that passes the voice frequency, a circuit that smoothes the output signal of this filter circuit, and a circuit that detects that the output signal of this smoothing circuit is equal to or higher than a predetermined level. . More simply, the voice recognition section can be constructed from a narrow band pass filter that allows passage of frequency components around IKIIz, which is the strongest frequency component in the human voice, a smoothing circuit, and a level detection (discrimination) circuit. In this way, the voice recognition unit detects the voices of the calling party such as "Moshimoshi" and "○O desu desu". When the voice recognition unit detects voice, it notifies the control device 11 of this fact.

The voice response section generates a predetermined voice, for example, a voice such as "We are currently calling, so please wait for a while" when commanded by the control device 11 as described below. Such audio can be stored in a semiconductor memory in digital format, for example, and output after D/A conversion.

The handset 15 is a normal handset and has a function of converting audio into electrical signals and electrical signals into audio.

The facsimile transmitting/receiving section 1B is also of a known type.

A function to read the information on the document to be transmitted and convert it into an image signal, a communication processing function including the transmission of the DIS signal described later,
It has functions such as printing and outputting the information represented by the received image signal on paper.

Alarm ■7 is set to 2 call mode, so handset I
This is to notify you that you should dial 5 and talk to the other party. This notification may be made by ringing a buzzer or by ringing the bell of the telephone 12 again. When the telephone 12 is to be re-ringed by the bell, there will be no need to provide the alarm 17. In addition to the ringing of a buzzer or bell, a display may be used to indicate that a call should be made.

Facsimile transmission includes call transmission, which is transmitted by a calling facsimile machine, and call reception, which is received by a calling facsimile machine. Furthermore, facsimile control means include tonal control and binary control. Tonal control is a procedure using analog signals and is mainly used in G1 and 62 aircraft. Binary control is a procedure using digital signals, and is mainly used in the 03 aircraft.

FIG. 2 shows a sequence processing procedure based on binary control of facsimile transmission by call transmission, and the processing of the facsimile machine on the called side is mainly executed by the facsimile transmitting/receiving section 16.

Off-hook at the calling facsimile machine.

After the called facsimile device is called by sending a dial signal, the called facsimile device goes off-hook and one line is connected. Then, the called facsimile machine emits a Dis signal (Dlgltal Identlf), which is usually called a beep, and indicates its own operation mode (Group 1.G1; Group 2.G2. Group 3.03).
'1cation Signal) to the calling facsimile machine (self mode transmission). When the calling facsimile machine receives the DIS signal, it can detect the operating mode of the called facsimile machine, and therefore sets a transmission mode corresponding to the operating mode of the called facsimile machine (mode setting). Next, the calling facsimile machine uses DOS (Digital Command Sl
gnal) to select the function given to the called facsimile machine. This includes, for example, the scanning line density (
3.85 lines/second or 7.7 lines/second) or a coding method that increases the redundancy of facsimile signals (Modified Huffman: Modlf'lcd Hurfflan coding method or Modified Read: Modif'ie
d READ encoding method).

After this, the calling facsimile machine sets the modem to 300 bits/S to 4800 bits/S or 2400 bits/S.
, and set the automatic equalization layer through training. Furthermore, the calling side facsimile machine uses TCP (Tral).
nlng Check) signal to check the reception status of the digital signal.

When the called facsimile machine receives the TCP signal without error, it sends a CFR (Conf'ir) to the calling facsimile machine.
If there is an error in the 0TCF signal that transmits the 0TCF signal, the called facsimile machine requests retraining. When the calling facsimile machine receives the CFR signal, it transmits the training signal again. Thereafter, the calling facsimile machine transmits the image signal to be transmitted to the called facsimile machine. At the end of the image signal, an RTC (Return to Control) signal is output to return the modem to 300 bits/s.

When the calling facsimile machine changes the functionality of the called facsimile machine, it sends E OM (End of Me).
ssage) signal and end the communication.
OP (End or Procedure) signal is sent, and when there is a subsequent page, MPS (Multi
-page Signal).

The called party's facsimile machine sends an MCF upon termination of the communication.
(Message Con1'irmatlon) is sent to the calling facsimile machine, and the calling facsimile machine receives the MCF and goes on-hook, thereby disconnecting the line. This completes all facsimile transmission processing.

FIG. 3 is a flow chart showing the overall operational procedure when the facsimile device 10 operates as a called device. This process is mainly executed by the control device 11.

The facsimile machine 10 has a facsimile mode in which a facsimile transmitting/receiving section 16 performs facsimile transmission and reception, and a call mode in which a user uses a handset 15 to have a conversation.

If the device on the calling side is a telephone for telephone calls, the operator enters the dial number; if the device on the other end is a facsimile machine, the operator enters the dial number and presses the start button; or automatically. The dialed number is sent to the facsimile machine of the called party.
O is called and the bell rings (step 31).
. Next, the line is connected by off-hook (step 32). At this time, the voice recognition and voice response section 14 and the facsimile transmission/reception section 16 are connected to the switching section 1.
3 to the telephone 12. Handset 15
may be disconnected at this time or may be connected to the telephone set 12 at all times.

If the calling device is a facsimile device, it is waiting for a DIS signal sent from the called facsimile device IO, which has a certain allowable waiting time.

If the calling facsimile machine receives the DIS signal during this waiting time, facsimile communication is started as described with reference to FIG. Furthermore, if the device on the calling side is a telephone for telephone calls, it should make a voice call such as ``Hoshimoshi'' or ``I'm roo''. This voice call often occurs as soon as a line is connected.

Therefore, when one line is connected, the above-mentioned voice such as "Moshimoshi" is heard by the voice recognition unit during a short period of time corresponding to the waiting time for receiving the DIS signal allowed by the facsimile machine on the calling side. 14, it is determined whether or not it has been detected (
Step 33).

Until the line is connected and the DNS signal is output (DI
If no audio signal is detected (the sending of the S signal may be delayed within the allowable waiting time described above), then (step 3)
(NO in Step 3, YES in Step 34), it was determined that the line was connected due to the call from the facsimile machine, and the switching unit 13 disconnected the voice recognition and voice response unit 14 from the telephone 12 and connected the facsimile transmitting/receiving unit 1G. The facsimile mode is set by waiting as is, and a DNS signal is output from the facsimile transmitting/receiving section 16 in order to respond to start facsimile communication (step 35). Next, the process moves to the facsimile reception process described using FIG. 2 (step 36).

When reception of the facsimile is completed, on-hook is performed and the line is disconnected (step 37).

If the voice recognition unit 14 detects voice after the line is connected and before outputting the DIS signal (step 3
3: YES), it is determined that the line is connected due to the call from the telephone, the facsimile transmitting/receiving section 16 is disconnected, and the voice recognition and voice response section 14 is maintained connected to the telephone 12, and Handset 1
5 is disconnected, it is connected to the telephone 12 and the 1 call mode is set. Then, as described above, a call is notified by the re-ringing 7 annunciator 17 using the bell (step 38). At this time, the voice response unit 14 generates a voice saying, for example, "We are currently calling. Please wait for a while" and transmits it to the calling party.

If the handset 15 is taken off-hook by being picked up within a predetermined time (YES at step 40), it is possible to have a conversation with the calling party.

When the conversation ends and the receiver is placed on the hook switch, an on-footer is performed and the line is disconnected (step 37).

If the handset 15 is not picked up after making a call for a predetermined period of time (YES in step 39), the voice response section 14 outputs a voice saying "I am not home at this time. Please answer the call" and the caller 9 (Step 4)
1). The line is then disconnected (step 37).

[Brief explanation of the drawing]

Figure 1 is a block diagram showing the electrical configuration of a facsimile machine that uses a telephone network, Figure 2 is a diagram showing the procedure for sequence control of facsimile transmission by call transmission, and Figure 3 is the overall operation of the facsimile machine. 3 is a flow chart showing the processing procedure. lO...Facsimile machine. 11...Control device. 14...Voice recognition and voice response unit. 16...Facsimile transmission/reception section. 17...Alarm. Patent applicant Tateishi Electric Co., Ltd. Agent Patent attorney Kenji Ushiku (one other person) Diagram 2 Proceedings Memorandum of Complaint (self-motivated) July 19, 1988

Claims (1)

[Scope of Claims] Facsimile start response output means for outputting a response signal for starting facsimile transmission after line connection, voice detection means for detecting that a voice signal is included in the received signal, facsimile reception means , a notification means for notifying that the call mode has been set; a means for determining whether or not a voice is detected by the voice detection means after the line is connected until the facsimile start response output means outputs a response signal; and voice detection. When there is a voice detected by the voice detection means, the call mode is set and the notification means is notified, and when there is no voice detected by the voice detection means, the facsimile
A facsimile device comprising means for setting a mode and controlling the facsimile receiving means to proceed to facsimile reception processing.