JP2502279B2 - Communication device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a communication device including a communication unit for performing data communication and a communication unit for performing a call.

(Prior Art) Conventionally, a data communication device such as a facsimile device is provided with a telephone in order to call the telephone line of the other party. With this telephone, it is possible to make a call when data communication is not being performed.

However, even if I wanted to talk to the other party during data communication, I could not make a call during data communication because there was only one line. Various methods of multiplexing data and voice on one line have been proposed, but they are not preferable because the time required for data communication becomes long and the communication quality deteriorates.

(Object) An object of the present invention is to enable a telephone call and a data communication at the same time, and to simplify the configuration without complicating an operation for making a call.

(Structure of Embodiment) FIG. 1 shows a basic block diagram of this embodiment. In the figure, reference numeral 1 designates a facsimile machine with a built-in telephone, which is connected to two telephone lines L1 and L2. 2 is a network control unit, lines L1 and L2
Control connection switching of. Reference numeral 8 is a control unit for controlling the entire apparatus, which is composed of a CPU, ROM, RAM and the like. No. 3 is a bell and rings by a calling signal. Reference numeral 4 is a handset for making a call, and 5 is a calling portion for making a call, which is connected to the terminal T4. Reference numeral 7 denotes a polarity detection unit for detecting the polarity reversal of the lines L1 and L2, and reference numeral 6 denotes a facsimile communication unit for performing operations such as sending a read image and recording a received image. Reference numeral 9 is a hook detection unit for detecting the hook state of the handset 4, and reference numeral 10 is a transmission switch operated by the user when an image is to be sent to the other party during the call.

The network control unit 2 includes terminals T1 and T2 connected to the lines L1 and L2, a terminal T3 connected to the handset 4 and the bell 3, a terminal T4 connected to the calling unit 5 and the polarity detection unit 7, and a facsimile unit. It has a terminal T5 connected to the communication unit 6, and the terminal T1 is the terminal T3 or
Can be connected to T4 but not to terminal T5. Therefore line L1
Is used exclusively for telephone calls. Also, terminal T2 is terminal T4 or T5
Can be connected to, but not to terminal T3. Therefore line L2
Is used exclusively for communication of image data.

Further, since the calling unit 5 and the polarity detection unit 7 are commonly connected to both lines L1 and L2, it is possible to call both lines and detect the polarity reversal of both lines.

The operation of the above configuration will be described with reference to the flow charts of FIGS. 2 and 3. FIG. 2 shows the main flow, and FIG. 3 shows the control flow during a call.

First, in FIG. 2, the output of the hook detector 9 is detected at step S1, and if the hook is on, the process proceeds to step S2.
The connection status between terminals T1 and T3 and between T2 and T5 is maintained.

In other words, the call line L1 is used when not calling or communicating.
Is connected to the handset 4 and the bell 3 to keep the bell 3 ringing whenever there is a call signal. Further, since the facsimile communication line L2 is connected to the facsimile communication portion 9, the facsimile communication portion 9 is kept ready for reception whenever the facsimile communication portion 9 is called.

When the hook is turned off when there is no call in the handset, the process proceeds to step S3, the terminals T1 and T4 are connected, and the calling section 5 makes a call (dial) to the communication partner (step S).
Five). Then, when the polarity detecting section 7 detects that the other party has responded in step S6, the terminal T1 is connected to the terminal T3 again. Calls can be made in this state. When the call ends at step S9, the device returns to the standby state.

Next, the control flow of the step S8 during a call will be described with reference to FIG.

In FIG. 3, when the transmission switch 10 is turned on at step S11, that is, when a document is transmitted during a call, the process proceeds to step S12 to connect terminals T2-T4. Therefore, the communication line L2 is connected to the calling unit 5 and the polarity detection unit 7. Then, in S13, a call is made to the communication partner, the fax communication terminal, via the line L2. At this time, the telephone line L1 is the handset 4
Since it is still connected to, it is possible to make a call to the communication line L2 during a call. Then, in step S14, when the partner facsimile communication unit is captured and the polarity is reversed, the polarity detection unit 7
Detects it and connects terminals T2-T5 at S15. Then, in step S16, facsimile transmission is performed. At this time, the operator can talk using the communication line L1.

By the way, the dialed numbers of the handset 4 and the facsimile communication unit 6 are set separately, and since L1 and L2 are separate lines, there is no reception of calls from other facsimiles during facsimile communication. , Do not accept calls from other telephones during a call. Therefore, data does not flow to the handset 4 and voice does not flow to the communication unit 6.

In addition, facsimile transmission is also possible when not in a call, and the operations from S11 to S17 in FIG. 3 are performed.

Since the handset 4 is not connected to the line L1 during the call, the ring back tone cannot be heard by the operator. Therefore, even when the calling unit 5 makes a call to the call line L1, the terminal T1−
You may connect between T3. Also, the pseudo ring back tone may be heard on the handset during a call.

Further, in the present embodiment, the facsimile is taken as an example of the data communication means, but a communication device for code information of a sentence can be similarly configured.

In addition, the data communication means and the call means are integrated,
Each may be a separate body. In that case, the calling portion may be provided in either one.

(Effect) As described above, according to the present invention, when there is no call on the first line, the first line and the dial signal transmitting means are connected according to the off-hook of the handset, and the dial signal is transmitted. After that, the first line and the handset are controlled to be connected, and further, the second line and the dial signal sending means are operated in response to the operation of the switch for instructing the start of the data communication during the call by the handset. By controlling the connection so that the second line and the data communication unit are connected after the dial signal is sent, the dial signal sending unit is connected between the first line for call and the second line for data communication. When making a call for a call while sharing a call, it is possible to make a call without a feeling of discomfort by the same operation as a normal telephone, and when it is necessary to perform data communication during a call, The times It is possible to simplify the operation for making a call by the dial signal transmitting means shared by the line and the second line.

[Brief description of drawings]

FIG. 1 is a basic block diagram of a telephone built-in type facsimile device, and FIGS. 2 and 3 are control flow charts showing the operation of the device of FIG. In the figure, L1 is a telephone line, L2 is a facsimile communication line,
Reference numeral 2 is a network control unit, 4 is a handset, 5 is a calling unit, and 6 is a facsimile communication unit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-57-18153 (JP, A) Actually opened 55-157360 (JP, U) Actually opened 59-78767 (JP, U)

Claims (1)

(57) [Claims] 1. A handset for making a call, a data communication means for performing data communication, a sending means for sending a dial signal, and first and second lines for the handset, the data communication means, and the sending means. Connection means for selectively connecting to the first line, a switch for instructing the start of data communication by the data communication means, and the first line in response to the off-hook of the handset when the first line is not called. The transmitting means is connected, and the control means controls the connecting means so that the first line and the handset are connected after the dial signal is transmitted by the transmitting means. The second line and the sending means are connected in response to the operation of the switch during a call by the handset, and after the sending means sends the dial signal, the second line and the data communication are connected. Communication device for controlling said connection means so as to means is connected.