KR100313855B1 - Apparatus and method for connecting the 1:1 data communication system during voice communication by the phone - Google Patents

Abstract

The present invention relates to a modem connection apparatus and method for data communication in a communication system. In particular, when a data communication is desired during a telephone call in a 1: 1 data communication, a modem connection is made by matching a connection mode state of a modem on a transmitting and receiving side. An apparatus and method for 1: 1 data communication connection during a voice call to execute a call.

According to the present invention, when a data communication or a video phone call with a counterpart is to be performed during a voice call, the data charge or a video phone call can be continuously connected without hanging up the phone, thereby reducing the telephone charges as well as the usage. There is an effect to improve the discomfort.

Description

Apparatus and method for connecting the 1: 1 data communication system during voice communication by the phone}

The present invention relates to a modem connection apparatus and method for data communication in a communication system. In particular, when a data communication is desired during a telephone call in a 1: 1 data communication, a modem connection is made by matching a connection mode state of a modem on a transmitting and receiving side. An apparatus and method for 1: 1 data communication connection during a voice call to execute a call.

In general, in a video phone or 1: 1 data communication using a modem, the modem is connected assuming that the connection mode is set to the same on the transmitting side and the receiving side. If the other party is not ready for modem connection, the modem connection will fail. Therefore, in this case, after confirming the connection mode of the modem with a normal voice telephone, the mode of the modem is reset. Then hang up and try to connect to the modem.

Therefore, according to the related art, a telephone fee is doubled and inconvenience in use causes a problem of providing a dedicated telephone port such as a fax number.

The technical problem to be solved by the present invention is to solve the above problems, in the 1: 1 data communication through a modem, first make a voice call, and then the two parties agree to the communication connection, and then do not hang up the telephone, and the data connection standard of the modem is matched. An apparatus and method for 1: 1 data communication connection during a voice call for connecting a communication are provided.

1 is a block diagram of a 1: 1 data communication connection device during a voice call according to the present invention.

2 is a flowchart of a 1: 1 data communication connection method during a voice call according to the present invention.

In order to achieve the above technical problem, a 1: 1 1: 1 data communication connection device during a voice call according to the present invention includes a hook detector for detecting a hook on / off state of a telephone and a corresponding button value input from the telephone. DTMF detector for detecting, ring detector for detecting ring signal received through telephone network, modem for modifying / demodulating signal transmitted for data transmission / reception, and ring detector for ring connection Detects the hook on / off of the detector to set the caller and the responder of the modem, respectively, and sets the state of the caller's modem and the responder's modem when a signal corresponding to a button for data communication is input through the DTMF detector. And a central processing unit for controlling data communication and connecting a modem.

In order to achieve the above another technical problem, a method of connecting 1: 1 data communication during a voice call according to the present invention is a modem connection method for 1: 1 data communication in a state in which a caller side and a responder side are telephone-connected, (a Determining whether a predetermined button for data communication is input through DTMF detection; and (b) when a predetermined button for data communication is input as a result of the determination of step (a), the modem of the caller side And switching the state of the modem on the responder side to enable data communication.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, a data communication connection device during a voice call according to the present invention includes a central processing unit (CPU: 10), a hook detector 20, a DTMF detector 30, a modem 40, a ring detector ( 50, a telephone 60, and a telephone network 70.

Here, the CPU 10, the hook detector 20, the DTMF detector 30, the modem 40, and the ring detector 50 may be a video phone or a communication terminal 100 that supports 1: 1 data communication. Corresponds to the component of.

The hook detection unit 20 detects a hook on / off state of the hook when lifting or lowering the handset of the telephone 60.

When the button of the telephone 60 is pressed, the DTMF detection unit 30 converts the signal corresponding to the button into digital data and transmits the signal to the central processing unit 10. It also recognizes DTMF signals generated by the phone of the other party connected by voice call.

The modem 40 demodulates the data received through the telephone network and transmits the demodulated data to the central processing unit 10, modulates the data output from the central processing unit 10, and transmits the data to the telephone network to enable data communication.

When the ring detection unit 50 receives a call to the telephone 60, the ring detection unit 50 recognizes the ring signal of the exchange and transmits the information to the central processing unit 10.

The telephone network 70 is a medium for transmitting data for data communication as well as voice signals of a general telephone.

Then, the process of achieving the object of the present invention by such a configuration will be described in detail by separating the user's operation and the recognition state of the central processing unit 10 with reference to the flowchart of FIG.

In steps 201 and 202, the initial state of the central processing unit 10 is set to be recognized as the caller mode.

Then, first, when the user of the caller lifts the handset to make a call for 1: 1 data communication (step 203), the hook detection unit 20 detects the hook off of the telephone, so that the central processing unit 10 is in the hook-off state. (Step 204).

When the user presses the telephone number of the respondent to which the user wants to make a phone call (step 205), the DTMF detection unit 30 decodes the analog DTMF signal corresponding to the corresponding button and converts the analog DTMF signal into a digital signal. (Step 206).

Then, when connected to the telephone on the responder's side through the telephone network 70 and directly connected to the telephone network without performing the modem, the ring signal is transmitted by the ring detector 50 on the responder's side. Is detected (step 207), and a ring tone is generated in the speaker of the telephone (step 208).

At this time, when the user on the responder side picks up the telephone to answer the call (step 209), the hook detection unit 20 on the responder side detects the hook-off state and outputs it to the central processing unit 10 (step 219).

In this case, the central processing unit 10 recognizes the responder mode when the hookoff is detected after the ring signal is detected (step 210).

If the user on the responder's side picks up the handset after ringing, the caller's side and the responder's side are connected through the telephone network 70 (step 211).

If both parties agree to perform video phone or data communication during a voice call (step 212), they press a specific button set on the phone for video phone or data communication (step 213).

Then, the DTMF detection unit 20 detects an input of a video phone or a specific button for data communication and outputs it to the CPU 10. Then, the modem 40 on the caller side is set to the caller mode (step 216).

At the same time, the DTMF detection unit on the responder side also detects the signal for this particular button and outputs it to the CPU 10 (step 215). Then, since the modem on the side where the hook off is detected after ring signal generation in step 210 is determined to be the responder mode, the modem is connected in the responder mode (step 217).

With modems connected in caller mode and responder mode, the communication mode of the caller's modem and the responder's modem's connection mode can be set to enable data communication while exchanging information about the modem's connection mode for data transmission. The video phone or data communication is then started (step 218).

Through the above steps, it is possible to perform data communication or connection of a video phone without making a phone call after mutually agreeing by making a voice call.

As described above, according to the present invention, when a data communication or a video phone call with a counterpart is to be executed during a voice call, the telephone charge can be reduced by continuously connecting the data communication or video phone call without hanging up the phone. In addition, there is an effect to improve the inconvenience in use.

Claims (4)

A hook detector for detecting a hook on / off state of the telephone; A DTMF detection unit for detecting a corresponding button value input from the telephone; A ring detector for detecting a ring signal received through a telephone network; A modem for modulating / demodulating a signal transmitted for data transmission / reception; And When the telephone connection is established, the ring detector detects the ring signal and the hook on / off of the hook detector, and sets the caller and the responder of the modem, respectively, and a signal corresponding to the button for data communication is transmitted through the DTMF detector during the voice call. And a central processing unit for resetting the state of the caller's modem and the responder's modem to enable data communication when inputted, and controlling the modem to connect and execute data communication. 1: 1 data communication connection device on the way. 2. The method of claim 1, wherein the selection of the caller and the responder of the modem in the central processing unit selects the modem of the telephone receiver as a responder mode when a hook-off is detected after detecting a ring signal at the telephone receiver. 1: 1 data communication connection device during voice call. In the modem connection method for 1: 1 data communication with the caller side and the responder side telephoned, (a) determining, via DTMF detection, whether a predetermined button for data communication has been input while executing the voice call mode; And (b) As a result of the determination in step (a), when a predetermined button for data communication is input, the state of the caller side modem and the responder side modem is switched to enable data communication, and the data communication mode is changed. And executing the 1: 1 data communication during the voice call. 4. The method of claim 3, wherein the caller mode and the responder mode of the modem are determined as the responder mode by determining ring detection and hook-off detection at a receiving side when the telephone is connected. Connection method.