KR100304047B1 - System for connecting to internet and PSTN using one phone line - Google Patents

Abstract

The present invention provides an internet and dial-up system that can facilitate the user's convenience by simultaneously performing an internet connection and a telephone call through a single telephone line, wherein data transmitted from the first computer and the first telephone, respectively, is transmitted. Modulate the signal and voice signal into a signal that can be connected to the first telephone network, and transmit the signal and voice signal to the first telephone network, and demodulate the data and voice signals that are connected through the first telephone network into signals that can be connected to the first computer and the first telephone, respectively. A remote device for transmitting the demodulated data signal and the voice signal to the first computer and the first telephone, respectively; And modulating a data signal from the Internet network received through the second computer and a voice signal connected from the second telephone through the second telephone network into a signal accessible to the first telephone network, and transmitting the same to a remote device connected to the first telephone network. And demodulate the modulated signal received from the remote device through the first telephone network into a signal accessible to the internet network and the second telephone network, respectively, and transmit the demodulated data signal to the internet network through the second computer. And a host device for transmitting a signal to a second telephone via a second telephone network.

Description

System for connecting to internet and PSTN using one phone line}

The present invention relates to an internet and a telephone access system using a single telephone line, and more particularly, to a system capable of simultaneously using the internet and a telephone using a single telephone line.

The Internet is currently composed of computer networks that connect the world. This Internet enables the transmission of information between networks with various technologies and devices using promised protocols. Is increasing. As such, various communication services are implemented or implemented based on the Internet, because the Internet has a foundation for transmitting various information.

However, since the Internet is a packet-switched network unlike the telephone exchange network, the Internet must be connected through a separate access means or an ISP (Internet Service Provider) company. Therefore, in homes and small businesses that do not use much Internet, it is common to connect a modem to a regular telephone line and access the Internet through an ISP.

However, this method is very inconvenient because the telephone cannot be used while using the Internet. Of course, there are ways to use two telephone lines, but there is a problem in that this method is difficult to adopt in places where the conditions are not good or the cost of additional lines is increased, such as in mountain wallpaper or backcountry.

Recently, services such as ISDN and ADSL, which can simultaneously use the Internet and a telephone using a single line, have been introduced.

However, in order to use a regular telephone and the Internet simultaneously in one line, it is necessary to have an expensive exchange such as ISDN or ASDL, so there is a problem that it cannot be used where no such exchange is installed.

Accordingly, the present invention has been made to solve the above problems, to provide the Internet and dial-up system that can facilitate the user's convenience by simultaneously performing the Internet connection and the telephone call through a single telephone line. There is a purpose.

1 is a block diagram of the Internet and dial-up system using a single telephone line according to an embodiment of the present invention.

2 is a configuration diagram of an embodiment of a remote device in FIG.

3 is a block diagram of an embodiment of a host device in FIG. 1;

Explanation of symbols on the main parts of the drawings

110, 170: Computer 120: Phone

130, 150: Telephone network 140: Remote device

160: Internet network 180: host device

In order to achieve the above object, the present invention provides a system for simultaneously performing an internet connection and a telephone call using a single telephone line, wherein the first telephone network receives data signals and voice signals transmitted from the first computer and the first telephone, respectively. And demodulate the demodulated data into a signal connectable to the first computer and the first telephone, respectively, by modulating the signal into a signal connectable to the first telephone network, and transmitting the data signal and the audio signal connected through the first telephone network. A remote device for transmitting a signal and a voice signal to the first computer and the first telephone, respectively; And a remote device connected to the first telephone network by modulating a data signal from an internet network received through a second computer and a voice signal connected from a second telephone through a second telephone network into a signal accessible to the first telephone network. And demodulate the modulated signal received from the remote device through the first telephone network into a signal accessible to the internet network and the second telephone network, respectively, and demodulate the demodulated data signal through the second computer. And a host device for transmitting the demodulated voice signal to the second telephone through the second telephone network.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a block diagram of the Internet and a telephone access system using a single telephone line according to an embodiment of the present invention, a remote device 140 for connecting the computer 110 and the telephone 120 to the telephone network 130. And a host device 180 for connecting voice information and data information transmitted through the telephone network 130 to the telephone network 150 and the Internet network 160, respectively.

Here, the remote device 140 is a connection device provided and used on the subscriber side.

The compatible computer 170 functions to connect signals transmitted and received between the telephone network 130 and the Internet network 160, such as a gateway.

In addition, the telephone networks 130 and 150 may be the same telephone network or may be separate telephone networks (for example, international telephone networks).

Looking at the operation of the Internet and dial-up system of the present invention having such a structure as follows.

When a user makes an internet connection with another user connected to the Internet network 160 using the computer 110 and simultaneously makes a phone call using the phone 120, the remote device 140 may use the computer 110. And synthesize the data information and voice information transmitted from the phone 120 and the phone 120 to the host device 180 through the phone network 130, and the remote device 140 also transmits the phone network 130 from the host device 180. Data information and voice information transmitted through the separation is transmitted to the computer 110 and the phone 120, respectively.

The host device 180 separates data information and voice information transmitted from the remote device 140 through the telephone network 130, transfers the voice information to another telephone through the telephone network 150, and transmits the data information to a computer ( It transmits to the Internet network 160 through 170.

FIG. 2 is a configuration diagram of an embodiment of a remote device in FIG. 1, and the configuration and operation of the remote device according to the present invention will be described in detail with reference to the embodiment.

Referring to FIG. 2, the remote device in FIG. 1 controls an Internet connection performed by the computer 110 through the telephone network 130 and the internet network 160, and hooks on the phone 120. Control unit 141 for controlling a telephone call carried out through the telephone network (130, 150) by the phone 120 in accordance with the on / off, and the telephone network 130 and the remote under the control of the controller 141 The telephone network interface 142 for connecting signals transmitted and received between the device 140, the computer interface 143 for connecting serial data transmitted and received between the computer 110 and the remote device 140, and the control unit 141. A ring signal generator 144 for generating a ring signal under control and an audio signal and a dialing signal provided by the telephone 120 are encoded and output, and the voice signal transmitted through the telephone network 130. The codec (145) for decoding and outputting the According to the control, the serial data connected through the computer interface 143 and the voice signal and the dialing signal encoded by the codec 145 are modulated into a signal that can be transmitted through the telephone network 130 and transmitted to the telephone network interface 142. The modem 146 demodulates the modulated signal received through the telephone network interface 142 into a data signal and a voice signal, and then outputs it to the computer interface 143 and the codec 145, respectively, and a ring signal generator ( Connecting the ring signal generated by the phone 144 to the phone 120, supplying power for the operation of the phone 120, and connecting the voice signal and the dialing signal transmitted from the phone 120 to the codec 145. The phone driver 147 and the hook driver 148 detect a hook on / off of the phone 120 through the phone driver 147 and transmit the hook on / off to the controller 141.

Here, for example, a DSVD modem can be used as the modem 146.

Referring to the operation of the remote device according to an embodiment of the present invention having such a structure in detail as follows.

First, the process of making a call while the user accesses the Internet through a computer will be described.

When the user attempts to connect to the Internet through the computer 110, the modem 146 modulates the data connected through the computer interface 143 from the computer 110 to the telephone network interface 142, and then the telephone network interface ( 142 connects the signal modulated by the modem 146 to the telephone network 130 under the control of the controller 141.

Through this process, when the computer 110 is connected to another user's computer connected to the Internet network 160, the telephone network interface 142 connects the signal coming through the telephone network 130 to the modem 146, The signal modulated by the modem 146 is connected to the telephone network 130.

The modem 146 demodulates the signal coming through the telephone network interface 142 and then transfers the signal to the computer 110 through the computer interface 143. The modem 146 also transfers the computer interface 143 from the computer 110. ) Modulates the incoming serial data into a signal accessible to the telephone network 130 and transmits it to the telephone network interface 142.

As described above, when the user picks up the phone 120 while the computer 110 is performing an Internet connection, the hook detection unit 148 detects the hook-off of the phone 120 to the control unit 141. To pass.

In the control unit 141, the phone number of the host device 1800 is stored in advance, and it is preferable that the user picks up the handset of the phone 120 to make a call to the host device 180. Of course, the user may select the host device every time. It is also possible to dial 180's telephone number.

When the user dials the desired phone number of the other party while the telephone apparatus is connected to the host device 180 through the telephone network 130, the codec 145 is dialed transmitted from the telephone 120 through the telephone driver 147. The signal is encoded and transmitted to the modem 146.

As such, when the encoded dialing signal is transmitted, the modem 146 is controlled by the controller 141 to modulate the encoded dialing signal into a signal accessible to the telephone network 130, and then transmits the encoded dialing signal to the telephone network interface 142. The interface 142 transmits the modulated dialing signal to the telephone network 130. In this way, the transmitted dialing signal is transmitted to the exchange connected to the telephone network 150 through the host device 180 to make a call to the user of the corresponding telephone number. The operation of the host device 180 will be described later.

Through the above-described process, when the phone 120 and another user's telephone connected to the telephone network 150 are connected in the Internet connection state of the computer 110, the modem 146 is controlled by the control unit 141. Accordingly, the modulated signal received through the telephone network interface 142 is demodulated, and data and voice signals are separated and transmitted to the computer interface 143 and the codec 145, respectively. In addition, the modem 146 under the control of the control unit 141 modulates the data transmitted through the computer interface 143 and the voice signal encoded by the codec 145 to make the telephone network 130 through the telephone network interface 142. To pass.

The codec 145 encodes a voice signal transmitted from the phone 120 through the phone driver 147 to the modem 146, and the codec 145 demodulates the voice signal by the modem 146. After decrypting the transfer to the phone 120 through the phone driver 147.

If the user hooks on the telephone 120, the hook detection unit 148 detects the hook on of the telephone 120 and transmits the hooked on to the control unit 141. The control unit 141 then connects the telephone 120 to the hook. The on-hook signal indicating that the signal is on is modulated using the modem 146 and then transmitted to the telephone network 130 through the telephone network interface 142. Then, the host device 180 detects the on-hook signal and terminates the telephone call connection with the other party.

The following describes the process of a user answering a call while accessing the Internet through a computer.

When the user is making an Internet connection through the computer 110, when a call is received from another user's telephone connected to the telephone network 150, the host device 180 detects this and calls the remote device 140. To send a ring signal. Then, the telephone network interface 142 of the remote device 140 detects the ring signal transmitted through the telephone network 130 to inform the controller 141, the controller 141 controls the ring signal generator 144 Generate a ring signal. As such, the generated ring signal is transmitted to the telephone 120 through the telephone driver 147 to generate a ring tone of the telephone 120.

At this time, when the user hears the ringtone generated and receives the call, a telephone call is performed through the above-described process.

3 is a block diagram of an embodiment of the host device of FIG. 1.

Referring to FIG. 3, the host device in FIG. 1 controls the Internet connection performed by the computer 110 through the telephone network 130 and the internet network 160, and the telephone network 130 by the phone 120. A control unit 181 for controlling a telephone call carried out through the 150, and a first telephone network interface 182 for connecting signals transmitted and received between the telephone network 130 and the host device 180 under the control of the control unit 181. And a dual-frequency signal under the control of the control unit 181 and a computer interface 183 for connecting serial data transmitted and received between the computer 170 connected to the Internet network 160 and the host device 180. The audio signal received through the dual sound multi-frequency signal generator 184, the second telephone network interface 185 for connecting the host device 180 to the telephone network 150, and the first telephone network interface 182 Decryption to the Second Telephone Network Interface A codec 186 that transmits the audio signal and the dual sound multi-frequency signal, which are transmitted to the network 185 and connected through the second telephone network interface 185, and the second telephone network interface 185 from the telephone network 150. The dual multi-frequency signal receiving unit 187 for receiving and demodulating the dual multi-frequency signal connected through the control unit 181 and the data connected through the computer interface 183 under the control of the control unit 181. The voice signal encoded by the codec 186 and the dual sound multi-frequency signal is modulated into a signal that can be transmitted through the telephone network 130, and then transmitted to the first telephone network interface 182, which is received through the first telephone network interface 182. And a modem 188 which demodulates the signal and separates the data and audio signals to the computer interface 183 and the codec 186, respectively.

The operation of the host device according to an embodiment of the present invention having such a structure will be described in detail as follows.

First, a description will be given of a process in which a user makes a phone call by making a phone call to another telephone connected to the telephone network 150 using the telephone 120 while the user is connected to the Internet using the computer 110. do.

When the user attempts to connect to the Internet through the computer 110, the modem 188 demodulates a signal received through the first telephone network interface 182 from the telephone network 130 connected to the remote device 140, and the voice signal and data. The data signal is transmitted to the computer interface 183. The computer interface 183 then transmits the demodulated data to the Internet network 160 through the compatible computer 170.

The modem 188 modulates data received from the Internet network 160 via the computer interface 183 into a signal accessible to the telephone network 130, and transmits the signal to the first telephone network interface 182 to transmit the remote device 140. By being delivered to the user's computer 110 through, the user's use of the Internet is enabled.

As described above, when the user makes a phone call to the telephone connected to the telephone network 150 using the telephone 120 while the computer 110 is using the Internet, the dialing signal is a dual tone multi-frequency signal receiver ( The data is then multiplied by 187 and transmitted to the control unit 181. Then, the control unit 181 controls the second telephone network interface 185 to send an off-hook signal to the telephone network 150, and to control the dual tone frequency signal generator 1840 to control the dual tone frequency signal according to the telephone number dialed by the user. In this way, the generated dual-tone multi-frequency signal is a switch connected to the telephone network 150 through the second telephone network interface 185 to make a call to the desired telephone number.

Through the above-described process, when the computer 110 is using the Internet and the telephone 120 and the telephone of another user connected to the telephone network 150 are connected, the modem 188 controls the controller 181. Demodulates the modulated signal connected from the telephone network 130 through the first telephone network interface 182 into data and voice signals, and separates the data and voice signals into the computer interface 183 and the codec 186, respectively. ). In addition, the modem 188 is controlled by the control unit 181 and receives the serial data received through the computer interface 183 from the Internet network 160 via the computer 170 and the audio signal encoded by the codec 186. The modulation is transmitted to the remote device 140 connected to the telephone network 130 through the first telephone network interface 182.

The codec 186 encodes an analog voice signal connected through the second telephone network interface 185 from a telephone connected to the telephone network 150 to a digital voice signal, and transmits the digital voice signal to the modem 188. The digital voice signal demodulated by the modem 188 is decoded and transmitted to the telephone connected to the telephone network 150 through the second telephone network interface 185.

Next, a process in which another user connected to the telephone network 150 makes a telephone call by making a phone call to the telephone 120 will be described.

When the computer 110 is connected to the Internet, when the second telephone network interface 185 of the host device 180 of another person connected to the telephone network 150 dials the telephone number of the telephone line connected thereto, the second telephone network interface 185 receives a ring signal from the telephone network 150. Then, the second telephone network interface 185 notifies this to the controller 181, which controls the second telephone network interface 185 and responds to the ring signal to the second telephone network interface 185 and the telephone. The call is connected between the callers.

Subsequently, the controller 181 controls the first telephone network interface 182 to off-hook and then controls the dual sound frequency signal generator 184 to control the remote device 140 stored in the control of the controller 181. Try dialing the phone number. Then, the ring signal goes to the remote device 140 and the remote device responds, and the telephone connection is established between the phone 120 and another phone connected to the telephone network 150 through the remote device 140 and the host device 180. Will be done.

Through such a process, if a call connection is made between the telephone 120 and the telephone connected to the telephone network 150, the telephone call is performed through the above-described process.

Meanwhile, even when the Internet connection using the computer 110 and the telephone call using the telephone 120 are separately performed, the Internet connection and the telephone call are performed as described above, respectively.

In the above description, an example in which a connection between a computer and a remote device, a computer and a host device is performed by a computer interface has been described, but a parallel interface is also possible, and is not limited to a specific interface method.

Although the technical spirit of the present invention has been described in detail according to the above-described preferred embodiment, it should be noted that the above-described embodiment is for the purpose of description and not of limitation. In addition, those skilled in the art will understand that various embodiments are possible within the scope of the technical idea of the present invention.

As described above, the present invention facilitates the convenience of Internet users in homes, etc. by simultaneously performing Internet access and telephone calls through a single telephone line without using a separate exchanger, etc. There is an effect that can greatly reduce the cost.

Claims (3)

In a system for simultaneously making an internet connection and making a phone call using a single telephone line, Data signals and voice signals transmitted from the first computer and the first telephone, respectively, are modulated into signals connectable to the first telephone network and transmitted to the first telephone network, and data signals and voice signals connected through the first telephone network are respectively transmitted. A remote device for demodulating into a signal connectable to the first computer and the first telephone, and transferring the demodulated data signal and the audio signal to the first computer and the first telephone, respectively; And The data signal from the Internet network received through the second computer and the voice signal connected from the second telephone through the second telephone network are respectively modulated into a signal accessible to the first telephone network to the remote device connected to the first telephone network. And demodulate the modulated signal received from the remote device through the first telephone network into a signal accessible to the internet network and the second telephone network, respectively, and demodulate the demodulated data signal to the internet network through the second computer. A host device which transmits the demodulated voice signal to the second telephone through the second telephone network. Internet and dial-up system comprising a. The method of claim 1, wherein the remote device, Control the internet connection performed by the first computer through the first telephone network and the internet network, and by the first telephone according to the hook on / off of the first telephone. A control unit controlling a telephone call performed through the first and second telephone networks; A telephone network interface for connecting signals transmitted and received between the first telephone network and the remote device under control of the controller; A computer interface for connecting data transmitted and received between the first computer and the remote device; A ring signal generator for generating a ring signal under the control of the controller; A codec for encoding and outputting an analog voice signal and a dialing signal provided by the first telephone, and decoding and outputting a digital voice signal transmitted through the first telephone network; Under the control of the control unit, the serial data received through the computer interface is modulated into a signal connectable to the first telephone network and transmitted to the telephone network interface, and the digital voice signal and the dialing signal encoded by the codec are transmitted. 1 modulates the signal into a signal that can be transmitted through a telephone network, and transmits the signal to the telephone network interface, demodulates a signal received through the telephone network interface, separates data and a digital voice signal, and then transmits the data to the computer interface. A modem which modulates a signal accessible to the first telephone and outputs the codec to the codec; A telephone driver for connecting a ring signal generated by the ring signal generator to the first telephone, and for connecting an analog voice signal and a dialing signal transmitted from the first telephone to the codec; And Hook detection unit for detecting the hook on / off of the first telephone through the telephone driving unit and delivers to the control unit Internet and dial-up system comprising a. The method of claim 1, wherein the host device, A control unit controlling an internet connection performed by the first computer through the first telephone network and the internet network, and controlling a telephone call performed through the first and second telephone networks by the first telephone; A first telephone network interface for connecting a signal transmitted and received between the first telephone network and the host device under control of the controller; A computer interface for connecting data transmitted and received between the second computer and the host device; A dual sound frequency signal generator for generating a double sound frequency signal under the control of the controller; A second telephone network interface for connecting a signal transmitted and received between the second telephone network and the host device; A codec for decoding and transmitting a voice signal connected through the first telephone network interface to the second telephone network interface, and encoding and outputting a voice signal connected through the second telephone network interface; A dual multi-frequency signal receiving unit for receiving a dual multi-frequency signal received from the first telephone network through the first telephone network interface and transmitting the dual multi-frequency signal to the controller; And Under the control of the control unit, the data received through the computer interface is modulated into a signal accessible to the first telephone network and transmitted to the first telephone network interface, and the digital voice signal encoded by the codec is transmitted to the first telephone network. Modem which modulates the signal into a transmittable signal and transmits it to the first telephone network interface, demodulates a modulated signal received through the first telephone network interface, transmits data to the computer interface, and outputs a digital voice signal to the codec. Internet and dial-up system comprising a.