JP3223471B2 - Communication device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device connected to a digital network , and more particularly to a communication device capable of performing bulk communication using two channels.

[0002]

2. Description of the Related Art A facsimile apparatus connected to an ISDN network can simultaneously use 2B channels.
Simultaneous operation of two types of media becomes possible. For example, G
Calls can be made during 4 facsimile transmissions. In addition, bulk communication in which one medium simultaneously uses 2B channels is also possible.

[0003]

However, the above-described conventional facsimile apparatus has a problem that it is impossible to make a telephone call during bulk communication of a G4 facsimile.

[0004] The present invention is the light of the conventional problems, and an object thereof is to provide a communication device capable of communicating the telephone in response to the detection of off-hook even during bulk communication.

[0005]

In order to achieve the above object, the present invention relates to a communication apparatus connected to a digital network and capable of performing bulk communication using two channels. Off-hook detecting means for detecting off-hook of the device, and off-hook detection during the bulk communication
Depending on the temporarily freed to bulk communication interruption means for temporarily interrupting of the bulk communication one channel of said two channels, after release of said one channel, communication means for communicating telephone It is provided with.

[0006]

According to the present invention having the above structure, for example, G4
If the off-hook of the handset is detected during the facsimile bulk communication, the G4 facsimile bulk communication is temporarily suspended, that is, switched to the 1B channel communication, so that the telephone can be immediately called without waiting for the end of the G4 facsimile bulk communication. Can communicate.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a facsimile apparatus according to an embodiment of the present invention.

The facsimile apparatus 1 includes a CPU 2 for controlling the operation of the entire apparatus, a ROM 3 for storing a control program according to a control procedure described later, and a work area of the program stored in the ROM 3 and a flag for error processing. It has a RAM 4 used as a temporary save area.

An image scanner unit 5 for reading input information such as a manuscript as an image, an input unit 6 having operation buttons (not shown) for inputting information at the time of transmission such as a destination, and an off-hook of a handset And a communication control unit 7 connected to an external ISDN line 20 for the facsimile machine 1 to transmit and receive data to and from the outside, together with the CPU 2, ROM 3 and RAM 4 connected to the bus line 30. I have.

Similarly, an image storage memory 9 for storing transmission image data, a call control unit 10 for controlling a calling and receiving protocol, and a printing unit 11 for printing an image on a recording sheet.
And an image communication unit 12 that encodes image information read by the image scanner unit 5 and controls image communication with the outside.
And a telephone communication unit 13 for controlling telephone communication are connected to the bus line 30.

Next, a control procedure of the facsimile machine 1 configured as described above will be described with reference to FIG.

FIG. 2 shows one example during bulk communication according to the present embodiment.
9 is a flowchart illustrating a procedure for releasing a B channel.

In step S1 of FIG. 1, bulk communication of a G4 facsimile (FAX) is started, and bulk communication is being performed. In the next step S2, the off-hook of the handset is monitored, and if the off-hook is detected, the process proceeds to step S3.
In step S3, the other party's dial number input by the operator is stored in the RAM 4. Next, the process proceeds to step S4, in which the other party's G4FA is used using the user information notification (UUI) which is one of the services of ISDN (INS64).
X, and sends a request to suspend bulk communication. The interruption of the bulk communication means switching from communication on the 2B channel to communication on the 1B channel.

Then, the process proceeds to step S5, where the other party G4F
It waits for a “response” of the bulk communication interruption from the AX. If a response to the interruption of bulk communication is not returned from the partner G4 FAX in step S5, the process proceeds to step S6. In step S6, the outgoing telephone call is interrupted and the state returns to the bulk communication state again, and steps S2 to S5 are repeated.

In step S5, if a "response" of the bulk communication interruption is received from the partner G4 FAX, step S7
Proceed to. In step S7, 1 in the D channel procedure
Release the B channel. If the 1B channel has been released, the flow advances to step S8 to execute a telephone calling procedure. Then, the process proceeds to step S9, and waits for a "answer" from the other party's telephone. If a "response" is received, the communication state is established. That is, G4FAX communication is performed in the 1B channel, and telephone communication is performed in the other 1B channel.

As described above, according to the present embodiment, when it is desired to make a telephone call during bulk communication of G4 facsimile, bulk communication is temporarily interrupted, that is, by switching to communication on the 1B channel, communication of two media is performed. It can be executed simultaneously, and telephone communication can be performed immediately without waiting for the end of bulk communication of G4 facsimile.

[0018]

As described above in detail, according to the present invention, in a communication apparatus connected to a digital network and capable of performing bulk communication on two channels, a handset is set to off-hook during the bulk communication. and off-hook detecting means for detecting a response to the off-hook detection in the bulk communication
Te, and bulk communication interruption means for temporarily interrupting of the bulk communication temporarily releasing one channel of said two channels, after release of said one channel, and a communication means for communicating telephone For example, if you want to make a call during bulk communication of a G4 facsimile,
If can temporarily interrupt the bulk communication, two media of communication can be executed at the same time, easily even in bulk communications
It is possible to call.

[Brief description of the drawings]

FIG. 1 is a block diagram of a facsimile apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a control procedure of the facsimile apparatus according to the embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 facsimile device 2 CPU 3 ROM 4 RAM 5 image scanner unit 6 input unit 7 off-hook detection unit 8 communication control unit 9 image storage memory 10 call control unit 11 printing unit 12 image communication unit 13 telephone communication unit

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04L 12/00-12/26 H04L 12/50-12/66 H04M 1/00 H04M 1/24-1/253 H04M 1 / 58-1/62 H04M 1/66-1/82 H04M 3/42 H04M 3/424-3/436 H04M 11/00-11/10 H04N 1/32-1/36 H04N 1/42-1/44

Claims (1)

(57) [Claims] 1. A communication device connected to a digital network and capable of performing bulk communication on two channels, an off-hook detecting means for detecting an off-hook of a handset during the bulk communication, and an off-hook during the bulk communication According to the detection , the two
And bulk communication interruption means for temporarily interrupting of the bulk communication one channel among the channels temporarily released, after release of said one channel, that a communication means for communicating telephone Characteristic communication device.