JPS6363261A - Data communication control equipment - Google Patents

Abstract

PURPOSE:To eliminate malfunction due to a manual switching by automatically transmitting a communicated data stop setting request signal as a call request to a connection destination when a handset is picked up to attain an originating state and switching to a telephone set from a data terminal equipment. CONSTITUTION:If the handset of the telephone set 1 is picked up in the middle of originating data, a control circuit 6 detects whether an hook switch 11 is hooked off or not with the aid of a hook state detection means 62. The control circuit 6 asks a communication control means 61 whether data is transmitted or not. If a stop is feasible, the circuit 6 interrupts the data transmission, and informs an operator of the effect. The control circuit 6 checks that no data is transmitted, and transmits the data communication stop getting request signal to a telecommunication line 7 from a stop setting request signal transmission means 65. When the connection destination data communication control equipment of the telecommunication line 7 interrupts the data transmission with the aid of the stop setting request signal, the control circuit 6 knows that the communication control means 61 stops data reception. A reception signal identification means 68 receives a stop acceptance signal. Due to the stop of reception, the control circuit 6 instructs a switch drive means 64, switches and connects the connection destination of the telecommunication line 7 from the data communication equipment to the telephone set 1, and forms a channel.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a data communication control device that utilizes a telephone line, and particularly relates to a data communication control device that temporarily suspends data communication and switches to a telephone call using a telephone device. Regarding a control device.

[Conventional technology]

When a conventional data communication control device wants to temporarily interrupt communication and make a call during data communication, for example, a data terminal device such as a personal computer (hereinafter referred to as a personal computer) sends a communication suspension setting request signal to the other party. After confirming that the other party would accept the call, the user lifted the handset of the telephone device and then manually switched the data communication/call switching switch on the communication control device from data communication to call mode.

Further, on the receiving side of the communication suspension setting request signal, the display mechanism of the data terminal device such as the screen of a personal computer displays the fact that the communication suspension setting request has been made to notify the recipient. If the receiver accepts this, he inputs a communication suspension approval signal from a data terminal device such as a personal computer, and transmits it to the connection destination through the data communication control device. Thereafter, the recipient manually switches from data communication to voice communication after lifting the handset of the telephone device, as described above.

Next, a conventional example will be explained with reference to FIG. FIG. 4 is a block diagram showing a conventional example. In FIG. 4, telephone bag N1 is connected to hook switch 11. It has a ringer 12 and is connected to the data communication control device 9 together with the data terminal device 2. The data communication control device 9 includes the data communication circuit 4. Switching circuit 95
．． and a control circuit 96. The data communication circuit 4 connects data exchanged by the data terminal device 2 to a communication line.9 The control circuit 96 exchanges information with the data communication circuit 4 and controls data communication. Further, the switching circuit 95 is connected to the control circuit 96.
The data terminal device 2 connected to the communication line 7 via the data communication circuit 4 is switched and connected to the telephone device 1 under the control of the controller.

When the operator wishes to temporarily suspend data communication, he inputs a code corresponding to the communication suspension setting request signal from the keyboard of the data terminal device 2, and transmits it to the other party's device through the data communication circuit 4 and the communication line 7. After confirming that the communication suspension approval signal has been received from the other party's device by checking the display on the data terminal device 2, etc., the operator lifts the handset of the telephone device 1, sets the hook switch 11 to the off-hook state, and then turns the switching circuit 95 on. It was possible to switch calls from side B to side A. If the operator mistakenly switches the switching circuit 95 to side A before receiving the communication suspension approval signal, the other party's data communication control device detects the signal interruption, considers it to be a communication abnormality, and disconnects the telephone line. Put it away.

Furthermore, if the operator switches the switching circuit 95 to the A side after receiving the communication suspension approval signal and before lifting the handset, the hook switch 11 will be in the on-footer state, and the communication will be considered to have ended and the telephone line will be disconnected. It ends up.

[Means for solving problems]

The conventional data communication control device described above simply connects the telephone device to a switching circuit, and the telephone device is installed independently without monitoring or control, so the operator has to operate it according to a predetermined complicated procedure. Not only is this necessary, but there is also the problem that the telephone line connection may be erroneously disconnected due to an error in the procedure.

An object of the present invention is to provide a data communication control device that solves the above problems.

[Means for solving problems]

The data communication control device of the present invention connects a telephone device and a data terminal device to a communication line to control data communication, and includes hook state detection means for detecting a hook switch state of the telephone device; a stop setting request signal sending means for sending a data communication pause setting request signal when the hook state detecting means detects an off-hook state during data communication; a received signal identifying means for identifying a signal received from a connection destination; The calling side includes switching driving means for driving a switching circuit to switch and connect the communication line from the data terminal device to the telephone device when the received signal identifying device receives and identifies a data communication suspension approval signal. Another invention is a data communication control device for controlling data communication by connecting a telephone device and a data terminal device to a communication line,
hook state detection means for detecting a hook switch state of the telephone device; received signal identification means for identifying a signal received from a connection destination; ringer driving means for driving a ringer of the device to emit a ringing tone;
a suspension acknowledgment signal sending means for transmitting a suspension acknowledgment signal to the communication line when the hook state detection means detects an off-hook state while the ringer driving means is driving the ringer; The called side includes switching driving means for driving a circuit to switch and connect the communication line from the data terminal device to the telephone device. Furthermore, in another invention, when the received signal identifying means identifies a data communication pause setting request and at least a predetermined time has elapsed since the ringer driving means drove the ringer, the hook state detection is performed. The apparatus includes suspension refusal signal sending means for sending a data communication suspension refusal signal to the communication line when the means detects an off-hook state.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. In FIG. 1, a telephone device 1 and a data terminal device 2 are connected to a communication line 7 via a data communication control device 3. In FIG. The telephone device 1 has a hook switch 11 and a ringer 12. The hook switch 11 sends to the communication line 7 an on-hook state in which the telephone device 1 is waiting for a call or a response, or an off-hook state in which the telephone device 1 is in a call or response. The ringer 12 receives a ringing signal from the communication line 7 and generates a ringing sound.

The data terminal device 2 is, for example, a personal computer (hereinafter referred to as a personal computer), and has an operation type and a display means. The data communication control device 3 includes a data communication circuit 4. Switching circuit 5. and a control circuit 6. The data communication circuit 4 converts and restores data sent and received by the data terminal device 2 into signals transferred via the communication line 7. The switching circuit 5 connects the telephone device 1 directly and the data terminal device 2 via the data communication circuit 4, and connects the telephone device 1 for telephone communication and the data terminal device 2 for data communication to the communication line 7. . The control circuit 6 includes communication control means 61, hook state detection means 62. Ringer drive means 63, switching drive means 64. Pause setting request signal sending means 65. Pause approval signal sending means 66
, a suspension refusal signal sending means 67, and a received signal identifying means 68, and the telephone device 1. Data communication circuit 4. and the switching circuit 5 to control data communication. The communication control means 61 is connected to the data communication circuit 4 and controls the data communication procedure. The hook state detection means 62 is directly coupled to the hook switch 11 of the telephone device 1, and detects, for example, the opening of the DC circuit in the communication path as an off-hook state, and the disconnection of the DC circuit as an off-hook state. Ringer drive means 6
Reference numeral 3 denotes a switching circuit 5 which sends a ringing signal when the connection with the communication line 7 is disconnected, drives the ringer 12, and generates a ringing sound. The switching driving means 64 drives the switching circuit 5 to connect the communication line 7 to either the telephone device 1 or the data terminal device 2. The pause setting request signal sending means 65 sends a pause setting request signal to the communication line 7 when the hook state detecting means 62 detects the off-hook state of the telephone device 1 during data communication. The suspension approval signal sending means 66 sends a suspension approval signal when the suspension setting request signal is received from the communication line 7 during data communication and the hook state detection means 62 detects an off-hook state to which the telephone device 1 has responded. The pause rejection signal sending means 67 sends out a pause rejection signal when the on-hook state continues without responding after a predetermined time has passed even after receiving the pause setting request signal. Received signal identification means 68
receives and identifies signals transmitted through the communication line 7, including the above signals.

Next, with reference to FIGS. 2 and 3 as well as FIG. 1, the main operating procedures of the control circuit shown in FIG. 1 will be explained.

FIG. 2 is a flowchart showing an example of the operating procedure when data communication is suspended and a call is requested in FIG. When the operator picks up the handset of the telephone device 1 to request a call during data communication (operation procedure 1), the control circuit 6 causes the hook state detection means 62 to detect the off-hook state of the hook switch 11 (operation procedure 2). ), the control circuit 6 checks with the communication control means 61 whether or not data is being transmitted (operation procedure 3), and if data is being transmitted, checks whether transmission can be paused (operation procedure 4), and it is possible to suspend the transmission. In this case, the data transmission is interrupted and the message "Transmission Interrupted" is displayed (operation step 5) to notify the operator. The control circuit 6 confirms that there is no data transmission and sends a data communication suspension setting request signal from the suspension setting request signal sending means 65 to the communication line 7 (operation procedure 6).

When the data communication control device to which the communication line 7 is connected interrupts data transmission due to the pause setting request signal, the control circuit 6 detects that the communication control means 61 has stopped receiving data (operation procedure 7), and the received signal identification means 68 receives a suspension acknowledgment signal (operation step 9) that determines that the connection destination is ready (operation step 8).
), upon receiving this suspension approval signal, the control circuit 6 instructs the switching driving means 64 to switch the connection destination of the communication line 7 from the data terminal device 2 to the telephone device 1 by the switching circuit 5 (operation procedure 10). and close the communication path. If there is no data transmission in operation step 3, the procedure is skipped to operation step 6. If the connection destination is not ready in operation step 8, the received signal identifying means 68 receives a suspension refusal signal (operation step 11), and displays "Suspension Rejection" on the data communication control device 3 (not shown). Notify operator.

FIG. 3 is a flowchart showing an example of the operating procedure when a call is requested with data communication suspended in FIG. 1. In Figure 3, during data communication (operation procedure 21)
When the received signal identifying means 68 of the control circuit 6 receives a pause setting request signal from the communication line 7 (operation procedure 22), the data communication control device 3 can suspend transmission if data is being transmitted (operation procedure 23). (operation step 24), data transmission is interrupted and "transmission pause" is displayed (operation step 25).
)do. The control circuit 6 activates the ringer 1 of the telephone device 1 by the ringer drive means 63 when the communication control means 61 interrupts data transmission upon reception of the pause setting request signal in the operation procedure 22.
2 (operation hand +ilI 26) to generate a ringing sound. After hearing the ringer's ringing sound, the telephone device 1 responds (operation step 27), and the control circuit 6 detects that the handset has been picked up and the hook switch 11 is in the off-hook state.
is detected by the hook state detection means 62 (operation procedure 28),
A suspension acknowledgment signal is sent to the communication line 7 by the suspension acknowledgment signal sending means 66 (operation procedure 29). After the control circuit 6 sends out the suspension approval signal, the switching driving means 64 drives the switching circuit 5 to switch and connect the communication line 7 to the telephone device 1 (operation procedure 30). Therefore, the telephone device on the calling side that requested a call and the telephone device on the called side that requested the call can communicate via the communication line. When data transmission is stopped in operation step 23, control circuit 6 immediately executes operation step 26 for driving ringer 12. If there is no response in operation step 27, wait for a predetermined period of time (operation step 31), and then
sends a pause refusal signal (operation step 32). In the above embodiment, an example of a block diagram is shown in which the control circuit shown in FIG. good. Although the hook state detecting means and the ringer driving means are shown and described as being connected to the communication line of the telephone device, the hook state detecting means is directly connected to the hook switch, and the ringer driving means is directly connected to the ringer for detection or driving. can do.

In the flowcharts of FIGS. 2 and 3, the order of the operation blocks may be changed as long as they can perform the same function, for example, both operation steps 25 and 26 may operate at the same time. The present invention is not limited by the description of the above embodiments.

〔Effect of the invention〕

As explained above, the present invention is equipped with a hook state detection means for detecting the state of a hook switch, and when the handset is lifted to make a call, it automatically sends a request signal for suspending the data being communicated as a call request. and when this signal is received, the ringer of the telephone device is activated to ring.
When responding to this ringing sound, a signal acknowledging the suspension of the data being communicated is sent as a response signal, and the data terminal device is automatically switched to the telephone device, which improves operation by eliminating malfunctions caused by manual switching. be.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a block diagram showing one embodiment of the data communication control device of the present invention, FIGS. 2 and 3 are flowcharts showing an example of the main operation procedure of FIG. The figure is a block diagram showing an example of the conventional technology. 1...Telephone device, 2...Data terminal device, 3...
Data communication control device, 4... Data communication circuit, 5...
・Switching circuit, 6... Control circuit, 7... Communication line, 1
1... Hook switch, 12... Ringer-161.
...Communication control means, 62...Hook state detection means, 6
3... Ringer drive means, 64... Switching drive means,
65, 66. 67... Signal sending means, 68... Signal identifying means. Ward 1

Claims (3)

[Claims] (1) In a data communication control device that connects a telephone device and a data terminal device to a communication line to control data communication, the hook state detection means detects the hook switch state of the telephone device, and the hook state detection means detects the hook switch state of the telephone device. a pause setting request signal sending means for sending a data communication pause setting request signal when an off-hook state is detected during communication; a received signal identifying means for identifying a signal received from a connection destination; 1. A data communication control device comprising, on a calling side, switching driving means for driving a switching circuit to switch and connect a communication line from a data terminal device to a telephone device when receiving and identifying a suspension approval signal. (2) A data communication control device that connects a telephone device and a data terminal device to a communication line to control data communication, which includes a hook state detection means for detecting a hook switch state of the telephone device, and a hook state detection means for detecting a hook switch state of the telephone device, and a hook state detection means for detecting a hook switch state of the telephone device, and a ringer driving means for driving a ringer of a telephone device to emit a ring tone when receiving an identification of a data communication pause setting request signal from the received signal identifying means; a suspension approval signal sending means for sending a suspension approval signal to a communication line when the hook state detection means detects an off-hook state while driving the ringer; and after the suspension approval signal is sent, driving a switching circuit to connect the communication line. 1. A data communication control device comprising, on a called side, switching driving means for switching and connecting a data terminal device to a telephone device. (3) When the received signal identifying means identifies a data communication pause setting request and at least a predetermined time has elapsed since the ringer driving means drove the ringer, the hook state detecting means detects an on-hook state. 2. The data communication control device according to claim 2, further comprising suspension refusal signal sending means for sending a data communication suspension refusal signal to the communication line when the data communication is detected.