JPH0292061A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To attain 2-line simultaneous communication with both of the 1st and 2nd channels or single communication with either of them as required by utilizing a so-called catch function if an incoming call by voice information comes from the 2nd information channel during the busy state of the 1st information channel. CONSTITUTION:When an incoming call arrives from the 2nd information channel during being busy with the 1st information channel, an incoming tone is informed from an incoming tone generating section 24 to a handset 21 via an adder 221. The operator operates an operation control section 1 to disconnect the handset 21 from the 1st information channel 271 and a holding tone is sent from a holding tone generating section 25. Then the handset 21 is connected to the 2nd information channel 272 via adders 221, 222.

Description

[Detailed description of the invention] [Object of the invention] (Industrial application field)
The present invention relates to an improvement in a facsimile machine that enables simultaneous voice and image communication by using a facsimile system.

(Prior Art) In conventionally well-known facsimile devices, the lines to which they are connected are limited to public telephone lines or DOX lines, and therefore voice communication and image communication cannot be carried out at the same time.

In the case of connection lines such as public telephone lines and DDX lines, the bandwidth is only available for one channel of information, and if you try to transmit audio and image information over this, the information will deteriorate and the information transfer will be delayed. This is because the speed decreases and the service quality deteriorates.

On the other hand, in anticipation of the introduction of I5DN in the future, facsimile machines that are capable of simultaneously transmitting voice and images are being developed recently.

Such a facsimile machine has two network control units that can operate independently, and a network interface unit that allocates the operations of these network control units to different information channels of a single digital comprehensive service network line. , comprising an audio control unit that controls an audio circuit and a facsimile control unit that controls an image circuit, and connects the audio circuit and the image circuit to the digital comprehensive service via the two network control units and the network interface unit. Simultaneous communication of voice and images is possible by assigning them to separate information channels of the network line.

(Problem to be Solved by the Invention) However, even with this facsimile machine that enables simultaneous voice and image communication, it is possible to use either one of the two network control units to transmit voice over one information channel. If a new incoming call request for voice communication arrives from another device on another information channel while communicating with Therefore, the other party's other machine has no choice but to be busy during that time.

On the other hand, while voice communication is being performed on one information channel using one of the two network control units, a new call for voice communication is received from another device on another information channel. Even if a request arrives, if it is an incoming call via an inter-network connection from the general switched telephone network to the L5DN, there is a possibility that it is not just voice communication but also image communication, and in this case, voice and image are combined. Even though they can transmit at the same time, they cannot help but be busy.

The present invention has been made to solve the above-mentioned problems, and its purpose is to use a separate information channel during a call in a facsimile procedure that allows simultaneous voice and image communication of this kind. When a new voice communication call arrives from another device, by performing a so-called catch operation, the call can be made immediately without making the other party wait.Moreover, this voice communication call is transferred from the general switched telephone network to the 15DN. In the case of image communication via network connection to
An object of the present invention is to provide a facsimile device that enables switching to simultaneous voice and image communication.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides two channels in the voice control section corresponding to each of the two network control sections.
The facsimile controller has two facsimile procedures, one for the digital integrated service network and one for the general switched telephone network, and the second information means for switching said voice circuit from a first information chitnel to a second information chitnel when an incoming call is received from a channel; and when said voice information is a facsimile procedure from a general switched telephone network, said voice circuit is The present invention is characterized by comprising means for returning the second information channel to the first information channel and switching the second information channel from the audio circuit to the facsimile control section.

(Function) According to such a configuration, when a call is received on the second information channel during a call on the first information channel, if this is a voice communication, a so-called catch function is used to immediately respond to the other party. be able to.

Further, even in the case of voice communication @ incoming call, if this is image information via inter-network connection from the membrane switched telephone network to the 15DN, simultaneous communication of voice and image can be performed.

(Embodiment) FIG. 1 is a block diagram showing an embodiment of a facsimile apparatus according to the present invention, and FIG. 2 is a 10-step diagram showing details of the voice communication control section in FIG. 1.

In FIG. 1, operation ffl1l 1111
The unit 1 is composed of a numeric keypad, function keys, various displays, etc., and is used to receive various input operations necessary for voice communication and image communication.

The voice control unit 2 performs various controls necessary for voice communication in accordance with various commands given from the operation control unit 1, and the voice control unit 2 has a built-in handset and receiver. There is.

F A
This FAX control section 3 has a built-in scanner, printer, transmission control section, files, etc. In particular, two facsimile procedures are built into the FAX control unit 3: one for the digital integrated service network and one for the general switched telephone network.

The two network control units 4.5 are capable of operating independently of each other, and both are connected to the voice control unit 2°FAX 1b.
It is possible to deal with both 111 and 3.

The network interface unit 6 is configured to be able to allocate the operations of the network control unit 4.5 described above to separate information channels of the -15DN lines 7.

Regarding the basic configuration explained above, this kind of l
Since this facsimile device is well known as a 5DN line compatible facsimile device from various documents, a detailed explanation will be omitted.

Next, details of the voice communication control section 2 will be explained with reference to FIG. 2.

The handset 21 has an adder 221 → adder 222 → d-MJ of analog switch 231 → PCM codec 261
A transmission/reception line leading to the first information 1-17 channel (corresponding to the network control unit 4) 271 via the adder 221
→ Adder 222 → Between d and b of analog switch 232 →
It has two transmission and reception lines, including a transmission and reception line that leads to a second information channel (corresponding to the a control unit 5) 272 via a PCM codec 262.

The adder 222 mixes the ring tone obtained from the ring tone generator 24 into these transmission/reception lines.

Similarly, in the analog switches 231 and 232, the holding tone obtained from the holding tone generating section 25 is mixed.

Furthermore, the information obtained from the PCM codec 261 or 262 is transmitted to the PCM codec via the analog switch 231 or 232.
1 analog signal connection section 28 to F A X ff1lJ
It is possible to transfer it to wJ section 3.

Next, the operation of the facsimile machine having the configuration shown in FIGS. 1 and 2 will be explained.

First, the intra-shell call origination and call reception operations will be explained.

In order to make a call, the operator performs operations such as selecting a service and inputting a dial number using the operation control unit 1 according to the displayed operation guidance.

Then, if the determined service is an image communication service, the operation control unit 1 controls the image communication control unit 3.
If the determined service is a voice communication service, the operation control unit 1 activates the process for the voice communication control unit 2.

Voice control unit 2. When each process is activated, the FAX control unit 3 sends a call request to the network control unit 4.5.

Then, the network control section 4.5 performs a predetermined calling procedure through the network interface section 6.

The network interface unit 6 is connected to the 15DN circuit a7, and can simultaneously pass image and audio information to multiple information channels, which is a feature of the 15DN. In other words, the two network control units 4 and 5 are independent from each other. It has been made possible to operate.

Next, general operations when a call arrives will be explained.

When an incoming call is notified from the 15DN line 7, the network interface unit 6 determines whether the incoming call is a FAX @ call or a telephone call, and if it is an incoming FAX call, the network control unit 5 is notified. If there is an incoming telephone call, each notification is sent to the network control unit 4.

Then, in the case of an incoming fax call, l! I Il, IJ
The 111 unit 5 further notifies the FAX control unit 3 to that effect, and image communication processing is thereby performed.

Further, in the case of an incoming telephone call, the network control section 4 further notifies the voice control section 2 of this fact, and thereby voice communication processing is performed.

In this way, operations can be performed independently for both FAX@ calls and incoming telephone calls.

Next, the operation when there is an incoming call from the second information channel during a call on the first information channel will be explained.

When a call is in progress on the first information channel, only the d-b of the analog switch 231 is on, and the handset 21 → adder 221.222 → analog switch 23
A path is set between d and b of No. 1 → PCM codec 261 → first information channel 271.

Here, when there is an incoming call on the second information channel 272, the ring tone generator 24 notifies the handset 21 of the ring tone via the adder 221.

Then, when the operator operates the operation control unit 1, the ringtone generation unit 24 stops its operation, and the analog switch 231 is turned off between d and b.
The period a and b is turned on, the handset 21 is disconnected from the first information channel 271, and the hold tone generator 25 outputs the hold tone.

At the same time, analog switch 232 is turned on between d and b, and handset 21 is connected to second information channel 272 via adders 221 and 222.

In this state, if the audio information on the second information channel is normal audio, the operator can either continue the conversation, return to the conversation with the first information channel, or superimpose the voices of both parties. It is possible to arbitrarily select whether to make a champion call.

On the other hand, if the operator determines that the voice information on the second information channel is a facsimile signal from the general switched telephone network, the analog switch 232 is turned off between d and b, and b- C is turned on, connection is made to the FAX control unit 3 through the analog signal connection unit 28, and image communication is then performed according to the facsimile procedure of the general switched telephone network.

At the same time, the hold-on generating section 25 is stopped, and the analog switch 231 between a and b is turned off.

The line between d and b is turned on, and the handset 21 is connected to the first information channel 271 via adders 221 and 222, thereby returning to the original talking state.

When the facsimile communication is finished, the analog switch 23
2 is turned off between b and c, and the initial state is restored.

In this way, according to the device of this embodiment, when a call arrives from the second information channel during a conversation on the first information channel, the so-called catch function is used to respond to the incoming call. You can immediately make a call to the other party involved.

Additionally, if the voice information related to the incoming call is a facsimile signal from the general switched telephone network, it will be immediately faxed.
l'l l! By transferring the information to the first part 3, simultaneous communication of audio and images can be realized.

〔Effect of the invention〕

As is clear from the above description, according to the facsimile apparatus of the present invention, when there is a call using voice information from the second information channel during a call on the first information channel,
Using the so-called catch function, you can immediately start a conversation with the other party related to the incoming call, and if necessary, call the other party. It is possible to make a two-line call simultaneously with both of the second channels, or to make a single call with either one of them.

Additionally, if the voice information related to the incoming call is a facsimile signal from the general switched telephone network, the F.A.
X IIIJ Part III can be activated to enable simultaneous audio and image communication.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the overall configuration of a facsimile apparatus according to the present invention, and FIG. 2 is a block diagram showing details of a voice communication control section in the same apparatus. 1... Operation control section, 2... Audio control section,
3...FAX control unit, 4, 5...Network control unit, 6...
・Network interface section, 7...l5DN circuit aゎFigure 2

Claims (1)

[Scope of Claims] Two network control units that can operate independently, a network interface unit that allocates the operations of these network control units to different information channels of one digital comprehensive service network line, and an audio circuit. A voice control unit for controlling an image circuit, and a facsimile control unit for controlling an image circuit, the voice circuit and the image circuit being connected to separate lines of the digital comprehensive service network via the two network control units and the network interface unit. In a facsimile device that enables simultaneous voice and image communication by being assigned to an information channel of the facsimile device, the voice control unit includes two PCM codecs corresponding to each of the two network control units; The control unit has two built-in facsimile procedures, one for the digital integrated service network and one for the general switched telephone network, and when a call is received from the second information channel while the first information channel is talking, means for switching the audio circuit from the first information channel to the second information channel; and when the audio information is a facsimile procedure from the general switched telephone network, means for switching the audio circuit from the second information channel to the first information channel; channel and switching the second information channel from the voice circuit to the facsimile control unit.This makes it possible to catch an incoming voice communication call from another channel during a call, and also to switch the second information channel from the voice circuit to the facsimile control unit. A facsimile device characterized in that it is also capable of receiving image communications through an inter-network connection from a switched telephone network to a digital comprehensive service network.