JP2531927B2 - Data 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 data communication device having a communication means.

[0002]

2. Description of the Related Art A conventional apparatus of this type, for example, a facsimile apparatus incorporating a telephone function will be described below. Usually, a facsimile machine has a function of switching between a manual incoming call and an automatic incoming call. Then, when there is an incoming call when the manual incoming call mode is set, the bell of the telephone is ringed to notify the operator that the incoming call has arrived. On the other hand, if there is an incoming call when the automatic incoming call mode is set, after the bell of the telephone rings about once or twice, the facsimile machine automatically receives the incoming call and proceeds to the communication operation.

There has been a problem that a call cannot be made when the calling side makes a call for the purpose of communication and the called side facsimile apparatus is set to the automatic receiving mode. And
There was the drawback that you would be charged because the line was connected even though you could not make a call. Further, there is a drawback that facsimile communication cannot be performed when the calling side makes a call for the purpose of communication and the called side facsimile device is set to the manual receiving mode or when there is no operator on the called side. Also, if the called party has an operator, the operator answers the call once,
There was the trouble of starting the facsimile communication operation.

As described above, the current telephone network is
As it is built for the purpose of providing telephone service,
A terminal identification function is not provided when connecting a telephone and a non-telephone terminal to one subscriber line. Here, the terminal identification function is a state in which a telephone and a non-telephone terminal are connected to one telephone line, and a call from the telephone is received by the telephone and a call from the non-telephone terminal is received by the non-telephone terminal. It is ready.
For this reason, the Telecommunications Technology Council has examined how to implement the "terminal identification function in the telephone network." The examination results are as follows. The form for realizing the "terminal identification function in the telephone network" is roughly classified into a system compatible with the network side and a system compatible with the terminal side. There are number information transmission method, call signal transmission method,
An END-TO-END signal transmission system has been proposed, and it has been decided to adopt a number information transmission system. The method supported by the terminal side is an identification adapter (MSS: Multi
(Services Switcher) is used to identify the terminal in the charging state.

Now, let us consider a case in which the terminal information is identified by utilizing the number information transmission method among the corresponding methods on the network side. This method will be described. A method image of the number information transmission method is shown in FIG. In FIG. 4, reference numeral 2 is an exchange having a dial-in function. The exchange 2 uses the telephone number l (for example, 03-123-111
1) Alternatively, telephone number m (for example, 03-123-1
When there is an incoming call at 112), a call signal is generated on the signal line 2a, and the terminal equipment or the like (in this case, the controller 4) is instructed that there is an incoming call. The controller 4 communicates with the exchange 2 (the connection sequence between the exchange and the terminal equipment will be described later), and the telephone number 1 (for example, 03-12
3-1111) or the telephone number m (for example, 03-123-1112). Then, when there is an incoming call to the telephone number l, the controller 4 generates a call signal on the signal line 8a and causes the telephone 8 to ring. Further, when there is an incoming call to the telephone number m, the controller 4 sends a calling signal to the signal line 6a to automatically make the facsimile machine 6 (embedded in the telephone set) (the facsimile machine is set to the automatic incoming call mode). Available). 6 is a facsimile machine with a built-in telephone,
8 is a telephone. If the calling side is a telephone, the telephone number is 1 (for example, 03-123-1111). If the calling side is a facsimile device, the telephone number is m (for example, 03-1).
23-1112), the intended call or communication is established.

Next, a connection sequence between the exchange having the dial-in function and the terminal equipment will be described. FIG. 5 shows a connection operation sequence flow chart.
The following timing is set on the exchange side to perform the connection sequence. (A) Calling signal sending timing In the exchange, there is a timing of about 100 ms from the inversion of L ₁ and L ₂ to the sending of a calling signal described later. (B) primary response signal arrives waiting time exchange, from the inversion until the primary response signal arrival L _1, L _2,
Wait for 6 seconds. If no signal arrives during this time, disconnection is entered. (C) Timing for starting transmission of extension designation signal When the exchange receives the primary response signal, the exchange sends the extension designation signal to the terminal equipment after 0.6 seconds. (D) Timing of waiting for arrival of extension designation reception signal The exchange will wait 0.3 seconds after the extension designation signal is sent to the terminal equipment.
The extension specified reception completion signal is received after the second. The waiting time is up to 2.1 seconds after the transmission of the extension designation signal is completed. During this period, if the extension designation reception completion signal has not arrived, the exchange enters disconnection. (E) Secondary Response Signal Reception Timing The exchange receives the secondary response signal 0.3 seconds or later after receiving the extension designation reception completion signal. Terminal equipment, etc. shall not send the secondary response signal before 0.3 seconds.

[0007]

Considering the configuration of the terminal equipment and the like described above, there are drawbacks described below.

First, the controller 4 must have a function of generating a calling signal to the facsimile apparatus 6 (facsimile apparatus currently on the market) built in the telephone and the telephone 8. Further, it is necessary to send out two office lines from the controller 4 to the facsimile device 6 with a built-in telephone and the telephone 8.

Further, since the terminal equipment and the like are composed of the controller 4, the facsimile device 6 with a built-in telephone, and the telephone 8, there is a drawback that the device becomes large. Further, since the telephone function is duplicated in the facsimile device 6 and the telephone 8 having a built-in telephone, there is a disadvantage that it is useless.

Further, when an incoming call is received by the facsimile apparatus, the automatic incoming call operation is performed.
There was a drawback that the bell rang about twice or so and it was troublesome.

In view of the above-mentioned problems, the present invention sends data from the exchange to the connected facsimile apparatus 6 and telephone 8 without using the controller 4 having the function of generating a calling signal. A data communication device that identifies whether the extension designation signal is a call extension designation signal or a communication extension designation signal and, depending on the result, supplements the DC loop on the call means side or the communication means side. The purpose is to provide.

[0012]

In order to solve the above-mentioned problems and achieve the object, a data communication apparatus of the present invention comprises a call means for making a call, a communication means for making a data communication, and a call means of the call means. A first capturing means for capturing a DC loop based on the hook state, a second capturing means for capturing a DC loop based on the data communication operation of the communication means, and an extension designating signal sent from the exchange for a telephone extension. With a means for identifying whether it is a designated signal or an extension designated signal for communication, and with respect to a calling signal sent from the exchange,
After the DC loop is captured by the second capturing means and the extension designation signal sent from the exchange is received, the DC loop captured by the second capturing means is disconnected and the extension designating signal for communication is obtained by the identifying means. Is identified, the first capturing means newly captures the DC loop, and when the identifying means identifies the communication extension designation signal, the second capturing means captures the DC loop again. It is characterized by doing.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram showing an outline of the communication system of this embodiment.

In FIG. 1, the exchange 12 has the same function as the exchange 2 of FIG. Then, the signal line 12a
Is one station line.

Reference numeral 14 denotes terminal equipment having a telephone function, a communication function and a control function, which is housed in an integrated casing. This 14 corresponds to the controller 4, the facsimile device 6 and the telephone 8 in FIG. 4, and it is important to integrate these terminal equipments.

FIG. 2 is a block diagram showing the configuration of the facsimile machine with a built-in telephone of this embodiment.

In FIG. 2, reference numeral 2 is a CML for controlling whether the office line is connected to a facsimile communication unit or a telephone function unit.
It is a relay. The signal lines 2a and 2b are telephone lines.
When the signal of the signal level "0" is output to the signal line 20a, the signal lines 2a and 2b are connected to the signal lines 4a and 4b. Further, when the signal of the signal level “1” is output to the signal line 2 a, the signal lines 2 a and 2 b are connected to the signal line 10
a, 10b.

Reference numeral 4 is a telephone line network. When the handset is on-hook, the signal of signal level "0" is output to the signal line 4c. When the handset is on-hook, the signal of signal level "1" is output to the signal line 4c.

Reference numeral 6 is a handset.

Reference numeral 8 is a circuit for detecting whether or not a calling signal is present on the signal lines 4a and 4b. When a call signal is coming to the signal lines 4a and 4b, the signal level "1" is given to the signal line 8a.
The signal of is output. Further, when the call signal is not input to the signal lines 4a and 4b, the signal of the signal level "0" is output to the signal line 8a.

Reference numeral 9 is a RET coil forming a DC loop.

Reference numeral 10 is a hybrid circuit for separating a transmission system signal and a reception system signal. The transmission signal output to the signal line 12a is output to the signal lines 10a and 10b. On the other hand, the reception signal output to the signal lines 10a and 10b is output to the signal line 10c.

Reference numeral 12 is a facsimile transmission unit composed of reading, encoding and modulation.

Reference numeral 14 is a facsimile receiving section which receives the signal output to the signal line 10c, and is constituted by demodulation, decoding and recording.

Reference numeral 16 is a circuit for inputting the signal output to the signal line 10c and outputting the value of the detected PB signal to the signal line 16a while detecting the PB signal.

Reference numeral 18 is a circuit for ringing a bell to notify the operator that the telephone function has received an incoming call. 18 does not ring the bell when the signal of the signal level "0" is output to the signal line 20b. Also, 1
Reference numeral 8 causes a bell to ring when a signal having a signal level "1" is output to the signal line 20b.

Reference numeral 20 is a control circuit for performing the control described below. One telephone line is connected to the facsimile device with a built-in telephone function of the present invention.
Allocate two. For example, 03-123-1111 is a telephone number for selecting a calling function, and 03-123-11
Reference numeral 12 is a telephone number for selecting a communication function.

The exchange is telephone number 03-123-111
1 or if there is an incoming call on 03-123-1112,
A call signal is generated on the signal lines 2a and 2b. When the terminal of this embodiment detects a calling signal, it turns on the CML relay.
Then, the DC loop is closed by RET9. After that, when there is an incoming call at 03-123-1111, the exchange outputs the PB signal of "1". Also, if there is an incoming call from 03-123-1112 from the exchange,
The PB signal of "2" is output. The terminal device of the present invention is C
Turn off ML and open DC loop. After that, the terminal device is PB
When the signal "1" is detected, a bell is sounded to notify the operator that an incoming call is coming for the purpose of a call.
When the terminal device outputs the PB signal “0”, the terminal device automatically makes an incoming call without sounding and starts communication.

FIG. 3 shows a control flow chart of the control circuit 20 of FIG.

In FIG. 3, step S30 represents the beginning.

In step S32, the signal line 20a
The signal of the signal level "0" is output to and the CML is turned off.

In step S34, the signal line 20b
The signal of the signal level "0" is output to and the bell does not ring.

In step S36, it is determined whether the signal on the signal line 8a is output and the ringing signal is received. When the call signal is not detected, other processing (step S38) is performed. When the calling signal is received, the process proceeds to step S40.

In step S40, the signal line 20a
The signal of the signal level "1" is output to and the CML is turned on. Then, the DC loop is closed by RET9 and the primary response is performed.

In step S42, the signal line 16a
Signal is input, and what the received PB signal is is detected.

In step S44, step S42
, The detected PB signal is 1 or 0
It is determined whether there is an incoming call at 3-123-1111, that is, whether the caller has made a call for the purpose of talking. When the detected PB signal is 1, the caller is making a call for the purpose of talking. In that case, the process proceeds to step S46. The detected PB signal is 2, that is, 03-123.
If there is an incoming call at -1112, that is, if the caller is making a call for the purpose of talking, the process proceeds to step S56.

In step S46, the signal line 20a
Output a signal of signal level "0" to the CML, turn off the CML,
Open the DC loop. This is an extension designation reception completion signal.

In step S48, the signal line 20b
A signal level "1" is output to the bell and the bell is rung to notify the operator that an incoming call has been made for the purpose of talking.

In step S50, the signal on the signal line 4c is input and it is determined whether the signal is off-hook. When it goes off-hook, the process proceeds to step S52. Off-hook closes the DC loop. This is the secondary response signal.

In step S52, the signal line 20b
A signal of signal level "0" is output to and the bell ringing is stopped.

Step S54 represents a call.

In step S56, the signal line 20a
Output a signal of signal level "0" to the CML, turn off the CML,
Open the DC loop. This is an extension designation reception completion signal.

In step S58, the wait time is 0.5 seconds.

In step S60, the signal of the signal level "1" is output to the signal line 20a, the CML is turned on, and the DC loop is closed. This is the secondary response signal.

In step S62, the facsimile machine is activated without any ringing to start the facsimile communication.

Step S64 represents communication.

In this embodiment, the communication function is as follows.
Although the facsimile communication function has been considered, it is not limited to the facsimile communication function and may be used for personal computer communication or the like.

As described above, let us consider a case in which the exchange having the dial-in function is connected to the facsimile apparatus having the telephone function of this embodiment. At this time, according to the present embodiment, a compact and wasteless terminal device which is integrated in one housing by integrating a telephone function capable of switching communication and a call on the communication side, a communication function, and a connection sequence function with an exchange is integrated. Offering is now possible.

[0050]

As described above, according to the present invention,
With respect to the ringing signal sent from the exchange, the second capturing means captures the DC loop, and after receiving the extension designation signal transmitted from the exchange, the DC loop captured by the second capturing means is disconnected to make a call. If the extension designation signal of is identified,
When the first capturing means newly captures the DC loop and the extension designation signal for communication is identified, the second capturing means captures the DC loop again, so that the facsimile apparatus 6 with a built-in telephone is connected. Identify whether the extension designation signal sent from the exchange is the extension designation signal for communication or the extension designation signal for communication without using the controller 4 having the function of generating a ringing signal to the telephone set 8. Then, depending on the result, the DC loop can be captured on the communication means side or the communication means side.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a communication system according to an embodiment.

FIG. 2 is a block diagram of a facsimile apparatus with a built-in telephone according to the present embodiment.

FIG. 3 is a control flowchart of a control circuit 20 of FIG.

FIG. 4 is an image diagram of a number information transmission system.

FIG. 5 is a connection operation sequence flow chart.

[Explanation of symbols]

 2 CML relay 4 Telephone network 6 Handset 8 Incoming detection circuit 10 Hybrid circuit 12 Facsimile transmission unit 14 Facsimile reception unit 16 PB signal detection circuit 18 Bell ringing generation circuit 20 Control circuit

Claims (1)

(57) [Claims] 1. A call means for making a call, a communication means for performing data communication, a first capturing means for capturing a DC loop based on a hook state of the call means, and a data communication operation of the call means. And a second capturing means for capturing the DC loop, and an identifying means for identifying whether the extension designation signal sent from the exchange is the extension designation signal for communication or the extension designation signal for communication. With respect to the ringing signal transmitted, the second capturing means captures the DC loop, and after receiving the extension designation signal transmitted from the exchange, disconnects the DC loop captured by the second capturing means, When the means identifies the extension designation signal for a call, the first capturing means newly captures a DC loop, and when the identification means identifies the extension designation signal for communication, 2 catches A data communication device characterized in that the capturing means captures the DC loop again.