KR20010105042A - Multiple telecommunication coupling device - Google Patents

Abstract

The present invention relates to a multi-connection device of a communication terminal, and is connected to a communication terminal 100 capable of transmitting and receiving various information through a public telephone network, connected to a public telephone network or the Internet network according to a predetermined selection signal to transmit and receive data. The connecting means 200 and the analog signal transmitted to the connecting means 200 is converted into a digital signal and then compressed to deliver the Internet network, and the compressed data received from the Internet network is restored and converted into an analog signal. Data processing means 300 for transmitting to the communication terminal 100 via the connection means 200, and connected to the Internet network for transmitting and receiving digital data exchanged with the data processing means 300 using an Internet protocol. Internet connection means 400 is configured to selectively the general public network or Internet network without a separate PC of the general communication terminal The result is that the effect that lets you easily use the Internet phone to make phone calls.

Description

Multiple telecommunication coupling device of a communication terminal

The present invention relates to a multi-communication connection device of a general communication terminal, and in particular, a general telephone, a fax, a mobile phone, a private exchange, and other information appliances are connected to any one of the existing public telephone network and the Internet network to transmit and receive information The present invention relates to a multi-communication connection device of a communication terminal.

In general terms, a network is broadly defined as a system in which components are interconnected, and are represented by nodes representing the components of these networks and links connecting these nodes. can do.

A communication network is required when providing communication services to a large number of users distributed in a large area. The communication services appear in the form of traffic, which is a flow of information or messages through the communication network.

Thus, introducing the concept of traffic, a communication network is a system in which devices and facilities that are designed to carry traffic originating from various communication services are interconnected.

If the network is classified in terms of traffic, the public switching network (PSTN) and packet switching (PSTN), which are used for general telephones that transmit voice signals using circuit switching, are used. It can be broadly classified into a packet-switched data network (PSDN) used for an internet network for transmitting data.

A public telephone network refers to a circuit-based public telecommunication network based on a circuit-switched system. The public telephone network has a long history of development, the widest coverage, and forms the basis of all public telecommunication networks.

Packet communication is a communication method for transmitting and exchanging digital data information in the form of a packet. Unlike a circuit-switched network, information is not intermittently flowed in bit units, but is intermittently transmitted in packet units.

In this respect, digital transmission and packet transmission are compared to digital transmission as a regular and continuous flow of digital bits, whereas packet transmission is prepared for irregular and intermittent flow of packets consisting of digital bits.

In this case, it is not necessary to continuously occupy a specific channel for packet forwarding. From this, characteristic differences between circuit switching of a public telephone network and packet data network appear.

Since packet communication has been introduced and developed for communication of digital data connecting computers and computer terminal devices, it has a close relationship with data communication and computer communication.

For packet communication to be established, the methods of transmission, exchange, network operation, etc. should be well organized for packet communication. That is, the methods regarding packet structure, packet forwarding, network connection, transmission path, etc. should be clearly defined.

As such, the communication protocol specified for packet communication is called a protocol.

In general, since packet communication is applied to a complex situation composed of numerous systems and networks, the communication process is very complicated.

On the other hand, ISDN (Intergrated Services Digital Network) is a digital communication network that integrates and provides various services.

In other words, ISDN is an integrated service digital communication network that can develop not only voice but also image and data services by advancing voice communication, and integrates services such as telephone, facsimile, teletex, remote metering, telewriting, and data terminal. do.

Typical features of ISDN include the fact that the subscriber and the communication network are connected through one circuit so that various services can be comprehensively provided, and the connection between the subscriber and the communication network is digital.

In other words, the subscriber network is digitalized, and various services are integrated thereon, and thus, there is an advantage in that various services such as voice and non-voice can be integrated and processed.

Therefore, in ISDN, circuit switching and packet switching can be provided simultaneously, and transmission is digital. ISDN provides a common access point for existing circuit-switched and packet-switched networks, and has the advantage of allowing various information resources in the network to be shared.

Conventional communication terminals such as telephones and fax machines can only transmit and receive voice signals as analog data through public telephone networks connected to telephone stations through two- or four-wire telephone cables that are inserted in the premises. There was a cost proportional to.

In addition, with the recent development of the Internet technology, in order to reduce the telephone cost incurred by the use of the conventional communication terminal through the public telephone network, the use of the 'Internet phone' using the Internet protocol is gradually increasing. Since the voice signal is transmitted and received using the packet-switched network of, there is an advantage that the telephone can be used without additional cost only if the Internet is connected.

Such Internet telephony proceeds with its own system construction for each service provider, lacks interoperability and compatibility between service providers, not only the service area range is limited, but also the service quality falls.

In addition, these Internet phones can be used only if a personal computer capable of connecting to the Internet and a sound card of more than a predetermined standard and separate earphones can be used, there is a problem that can not use the conventional communication terminal.

In addition, such an Internet phone has a problem in that no first-time user or non-user other than the user who can freely connect the Internet through a conventional personal computer cannot use the Internet phone.

In addition, CTI is installed as an enterprise unit for integrating computers and telephones and using the telephone system efficiently. By adopting Voice over IP (VoIP) equipment for these CTIs, not only data communication through the existing Internet dedicated network but also With the technology that supports voice signals at the same time, it is possible to make calls at the cost of general local calls regardless of local and international calls.

However, such voice data integration equipment integrates voice and data through a network such as a LAN without using a conventional public telephone network. Thus, when the traffic of the network increases, the call quality becomes poor so that voice information cannot be recognized. have.

In addition, such voice data integration equipment has a problem that the telephone line used in the prior art becomes useless because it uses a network for scanning.

Accordingly, the present invention is to solve the above problems, by connecting a general telephone, a fax, a mobile phone, a private exchange, and other information appliances to any one of the existing public telephone network and the Internet network to transmit and receive information The present invention relates to a multiple communication connection device of a communication terminal.

The multi-communication connection device of the communication terminal of the present invention for achieving the above object is connected to a communication terminal capable of transmitting and receiving various information through a public telephone network, connected to the public telephone network or the Internet network according to a predetermined selection signal A connection means for transmitting and receiving data, and converting an analog signal transmitted from the connection means into a digital signal and compressing it to deliver an internet network, and restoring the compressed data received from the internet network to convert it into an analog signal. Data processing means for transmitting to the communication terminal via the means, and Internet network access means connected to the Internet network for transmitting and receiving digital data exchanged with the data processing means using the Internet protocol.

The data processing unit may further include an analog digital converter for converting an analog transmission signal transmitted from the connection unit into a digital signal, a compressor for compressing and outputting the digital signal transmitted from the analog digital converter, and the compressed data. A transmission unit comprising a transmission buffer which processes and stores the data appropriately according to a purpose; It consists of a receiving buffer for temporarily storing and outputting the received data, a decompressor for restoring and outputting the compressed data stored in the receiving buffer to the original, and a digital analog converter for converting the digital data transferred to the decompressor into analog data. Characterized in that it comprises a receiver.

According to the present invention having the above-described configuration, by connecting the communication terminal used in the prior art, the user can not only use the ordinary telephone through the existing public telephone network, but also the user easily connected to the multi-connection device Internet connection There is an effect that the telephone transmission and reception through the Internet through the means.

1 is a block diagram showing a multiple communication connection device of a communication terminal according to an embodiment of the present invention;

2A is a schematic diagram for explaining the concept of ADSL,

Figure 2b is a schematic diagram for explaining the connection state of the ADSL modem.

3 is a block diagram showing a multi-communication connection apparatus of a communication terminal according to another embodiment of the present invention;

4 is a view for explaining an embodiment of a multiple communication connection device according to the present invention;

5 is a state diagram for explaining a transmission state of the embodiment of the present invention;

6 is a state diagram for explaining a reception state of an embodiment of the present invention;

7A is a view showing an embodiment connected to a multiple communication connection device and a private exchange of the present invention;

7b is a view showing another embodiment connected to a multiple communication connection device and a private exchange of the present invention;

7c is a view showing another embodiment connected to a multiple communication connection device and a private exchange of the present invention;

* Explanation of symbols for the main parts of the drawings *

100: communication terminal

200: connection means

300: data processing means 310: transmitter

312: analog digital converter 314: compressor

316: transmission buffer

320: receiving unit 322: receiving buffer

324: Restorer 326: Digital Analog Converter

400: Internet network access means

500: switching means

700: private exchange 720: server system

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

1 is a block diagram showing an embodiment of a multi-communication connection apparatus of a communication terminal according to the present invention, which is connected to a communication terminal 100 capable of transmitting and receiving various information through a public telephone network, to a predetermined selection signal. According to the connection means 200 to transmit and receive data by connecting to a public telephone network or the Internet network, and converts the analog signal transmitted from the connection means 200 to a digital signal and then delivers the Internet network to the Internet network Data processing means 300 for restoring the compressed data received from the digital signal to the communication terminal 100 through the connection means 200, and digital data exchanged with the data processing means 300. Internet connection means 400 is connected to the Internet network to transmit and receive using the Internet protocol.

Here, the communication terminal 100 is a device for transmitting and receiving information through a general public telephone network, such as a base station terminal connected to a public telephone network by wirelessly communicating with a conventional wired / wireless telephone, a fax machine, a private exchange, an information electric device, a mobile phone, and the like, which are conventionally used. Including, each of these devices may be used alone or connected, and a plurality of devices may be combined and used as needed.

In addition, the connection means 200 is a control signal transmitted from the communication terminal 100, that is, the control signal input to a special code key of the communication terminal or by the control input means included in the communication terminal 100 by air A telephone network or the data processing means 300 and the Internet network access means 400 to be selectively connected to the Internet network.

In addition, the data processing means 300 is a transmission unit 310 and the Internet network access means 400 for converting the analog data received through the connection means 200 to the digital transmission to the Internet network access means 400 It is configured to convert the digital data transmitted from the analog to the analog output to the communication terminal 100 via the connection means 200.

At this time, the transmitting unit 310 is composed of an analog digital converter (ADC, 312), the compressor 314, and the air transfer buffer 316, the analog digital converter 312 is transmitted from the connection means 200 When the converted analog signal is converted into a digital signal and outputted, the digital signal is compressed to reduce the transmission time in the compressor 314 as much as possible and temporarily stored in the transmission buffer 316 to be output to the Internet network access means 400. do.

On the other hand, the receiver 320 temporarily stores the digital data transmitted from the Internet network access means 400 in the reception buffer 322, and the stored data is appropriately processed according to the purpose, and then restored by the restorer 324. After the compressed data is restored to its original state, the digital analog converter 326 converts the data back into analog data and outputs the analog data.

At this time, the reception buffer 322 serves to eliminate jitter, and serves to make the delay constant by compensating for the variation delay for each data.

The Internet network access means 400 includes an Internet connection device such as an Ethernet connection device such as a serial communication device, a parallel communication device, a modem, an ISDN terminal, an ADSL modem, a cable modem, a dedicated line terminal, a LAN card, and the like. Internet connection control unit for controlling and transmitting and receiving data using an Internet protocol in a state directly connected to a predetermined Internet service provider or Internet network, digital data transmitted from the data processing means 300 It allows you to send the data through the Internet.

The Internet connection controller is for controlling the Internet access device. When the telephone call is requested through the Internet network, the Internet connection control unit checks the connection state of the Internet access device. It is controlled to maintain internet connection with internet service provider, TCP / IP protocol and PPP protocol.

At this time, the Internet connection control unit is preferably implemented using a built-in small O / S such as embedded Linux, if necessary, may operate as a web server with a fixed IP.

The serial communication device is a device for transmitting and receiving digital data directly in a synchronous or asynchronous manner without a separate device, and the parallel communication device is a device for transmitting and receiving digital data directly without a separate device in a synchronous or asynchronous manner.

In addition, the modem is connected to the modem network and the SLIP protocol or the PPP protocol of the Internet access device 400 using a public telephone network to connect to the Internet network, so that it can be easily connected using a common public telephone network Do it.

ISDN terminal provides fast data communication speed of 64K / 128Kbps, integrated service for simultaneous data communication and voice communication, and various additional service functions, so that voice, text, data, and video services are integrated into one network. Until now, separate communication networks were required to provide various kinds of communication services, but ISDN can convert all types of information to digital and transmit them to one network.

The equipment used for this ISDN is a TA (termianl adapter), which can be connected to the outside through the RS-232C port to provide data communication, and can directly connect a general telephone rather than an ISDN dedicated telephone to use a telephone call. It is widely regarded as the most common equipment for using ISDN.

Therefore, in the case of using the ISDN equipment, the connection means 200 connects the general telephone call using the public telephone network with the output line connected to the general telephone connection terminal of the ISDN. 300) can connect the output line with ISDN terminal and RS-232C to send and receive data.

In addition, ADSL means a low frequency (4KHz) voice signal and a high frequency (1MHz band) data signal as shown in FIG. 2A on a conventional telephone line, and as shown in FIG. By disconnecting the signal and terminating the signal by using a voice exchange (or telephone) and a data exchange (or home computer), you can enjoy voice calls and high-speed internet communications at the same time, and Internet communications are much faster than existing modem speeds. .

Therefore, when the Internet access means 400 uses an ADSL modem, the output line is connected to the telephone connection terminal of the splitter when the telephone line is connected to the public telephone network, and the data connection terminal of the splitter is used when the telephone line is connected via the Internet network. You can make a call using an internet phone.

In addition, when the Internet access means 400 uses a cable modem and a dedicated line connection device, a telephone line for a separate public telephone network connection is required, and an Ethernet connection device such as a LAN card and the like are directly connected to the Internet network. When connected, separate telephone lines and devices for Internet access are required.

In addition, each of the Internet access means 400 may be installed independently of each other, or may be used by connecting them selectively by installing multiple types of multiple.

3 is a diagram illustrating another embodiment of the present invention, in which a communication terminal 100 for transmitting and receiving information using a public telephone network and a signal transmitted from the communication terminal 100 are selectively switched according to a control signal. The connecting means 200, the voice signal transmitted from the connecting means 200 is converted into digital data so that it can be transmitted through the Internet network, and the digital data received through the Internet network to restore data to the voice signal Processing means 300, the Internet network connection means 400 connected to the Internet network for transmitting and receiving digital data output from the data processing means 300, the voice signal output from the communication terminal 100 directly public A network that connects to a telephone network or the data packetized by the data processing means 300 to the Internet network through the Internet network access means 400. Marching is comprised of means 500.

The connecting means 200 connects the communication terminal 100 and the switching means 500 to each other according to a predetermined control signal, or connects the communication terminal 100 to the data processing means 300. .

In addition, the data processing means 300 processes the data transmitted from the switching means 500 and the transmitter 310 for processing the data transmitted through the connection means 200 to the switching means 500 It consists of a receiver 320 for transmitting to the connection means (200).

The transmitter 310 is composed of an analog digital converter (ADC, 312), a compressor 314, and a transmission buffer 316, the analog digital converter 312 is transmitted from the connection means 200 When the analog signal is converted into a digital signal and outputted, the digital signal is compressed by the compressor 314, properly processed for use, and then stored in the transmission buffer 316 and passed through the switching means 500 to the Internet network. It is output to the Internet network access means 400 to be transmitted through.

On the other hand, the receiver 320 stores the digital data output from the switching means 500 in the reception buffer 322, the stored data is properly processed according to the application and then decompressed in the decompressor 324 After the restoration, the digital analog converter 326 converts the analog audio signal back to the analog voice signal and outputs the analog voice signal.

In one embodiment of the switching means 500, the output line is connected to a normal telephone line line and the other output line is configured to be connected to, for example, a modem, when receiving data from the connecting means 200 When making a direct call to a public telephone network and receiving data from the data processing means 300, a telephone call through an internnet network can be selectively performed through the modem.

On the other hand, when the switching means 500 receives a signal from the public telephone network, the phone immediately transmits the data to the connection means 200 to make a telephone call, and receives data from the Internet network access means 400. In this case, the digital data is transferred to the data processing means 300 to convert the analog data into a telephone call.

4 is a view for explaining another embodiment according to the present invention, using a general telephone 110 as a communication terminal, connecting the multi-connecting apparatus 10 of the present invention to the general telephone 110, the Internet An embodiment in the case of using a modem as a connection device of the network connection means 400 will be described.

Here, the operation state of the multiple connection device of the present invention when the user transmits will be described with reference to the state diagram of the connection means 200 shown in FIG.

The S0 state is a call on a regular telephone without picking up the handset from the initial state. When the handset is picked up, the state transitions to the S1 state waiting for a predetermined special code input. Transition to the initial state of,

If you do not enter a special code with a phone number is not entered at this time since the normal phone connection attempts to transition to the state of S0 again.

When a phone number is input with a predetermined special code, an attempt is made to connect the telephone through the Internet network.

At this time, the special code is detected by the connection means 200 to maintain the connection state to the Internet network by operating the modem of the Internet network access means, connected to the other party's phone 120 corresponding to the corresponding telephone number through the PSTN network Or through a multiple connection device of the present invention.

On the other hand, the reception operation of the multiple connection device of the present invention will be described with reference to the state diagram of the connection means 200 shown in FIG.

The S0 state is an initial state where a handset is not lifted and a call can be made to a general telephone.

At this time, when the ring signal sounds to the general telephone 110 and picks up the handset, it transitions to the S1 state waiting for a predetermined special code.

When a predetermined special code is detected in the S1 state, the state transitions to the S2 state, which is an internet telephone call state, and when the receiver is left as it is, it returns to the S0 state.

In addition, if a predetermined special code is not detected even after a certain period of time, the state transitions to the initial state S0, and a state of making a phone call is made.

If it detects a certain special code, it corresponds to the state of making an Internet call. If you release the handset, the phone returns to the initial state S0 and the Internet call is cut off. If the handset is not cut, the packet data from the local server is processed. The voice signal is converted and received.

Here, the special code is a code that is least likely to be artificially used by other ordinary telephones, and can be made by a combination of the modem's available codes and time intervals.

7A, 7B, and 7C show respective embodiments in the case where the communication terminal 100 is connected and used in connection with the private exchanges PBX and 700, respectively, and FIG. 7A shows each telephone connected to the private exchange. In the case of using the multiple connection device of the present invention to connect to, Figure 7b is connected to the multiple connection device having a plurality of transmission lines to the private exchange to use the Internet phone without a separate device to the user in the private exchange or general In the case of using a telephone, FIG. 7C is a case where all the public payphone networks are connected to the private exchange 700, and the internet network is connected through a separate internet network.

Here, in the embodiment shown in Figure 7b, the connection means 200 preferably includes a call connection control to exchange signals with the private exchange 700.

In addition to the above description, any information communication terminal device capable of providing information through a public telephone network and an internet network, for example, may also include a base station that wirelessly transmits and receives a mobile phone to a general telephone network or another mobile phone.

According to the present invention, by using a communication terminal such as a general telephone, a fax machine, an information appliance, or a private exchange, it is possible to selectively transmit and receive a call by connecting a public public telephone network and the Internet network, and thus it is almost inexpensive in normal times. It is possible to make a call using an internet network which is not used, or improve the convenience of use, such as being able to make a call directly to a general telephone network when the network traffic increases and the sound quality of the internet phone is reduced.

In addition, it is possible to increase the user's convenience by allowing an Internet phone to be connected and used without a personal computer.

In the case of enterprise, even if a separate LAN is not set up, additional construction burden is required, such as internet telephony can be implemented using existing private switching network.

Claims (8)

A connection means 200 connected to a communication terminal 100 capable of transmitting and receiving various information through a public telephone network, connecting to a public telephone network or an internet network according to a predetermined selection signal, and transmitting and receiving data; After converting the analog signal transmitted to the connecting means 200 into a digital signal and compressing to deliver the Internet network, and restores the compressed data received from the Internet network to convert into an analog signal through the connecting means 200 through the medium Data processing means 300 for transmitting to the communication terminal 100, Multi-communication connection device of the communication terminal consisting of an Internet network connection means 400 is connected to the Internet network for transmitting and receiving digital data to and from the data processing means 300 using the Internet protocol. The method of claim 1, The data processing means 300, the analog digital converter 312 for converting the analog transmission signal transmitted from the connection means 200 into a digital signal, and the digital signal transmitted from the analog digital converter 312 A transmission unit (310) comprising a compressor (314) for compressing and outputting, and a transmission buffer (316) for processing and storing the compressed data appropriately for use. The reception buffer 322 temporarily stores and outputs the received data, the decompressor 324 for restoring and outputting the compressed data stored in the reception buffer 322, and digital data transferred to the decompressor. Multi-communication connection device of a communication terminal, characterized in that consisting of a receiver 320 consisting of a digital analog converter 326 to convert to. The method according to claim 1 or 2, The communication terminal 100 includes at least one selected from a general telephone, a fax machine, a private exchange, an information terminal, and a base station terminal. The method according to claim 1 or 2, The Internet connection means 400 is a multiplexing device of a communication terminal, characterized in that it comprises at least one selected from a modem, ISDN terminal, ADSL modem, cable modem, network interface. Communication terminal 100 for transmitting and receiving information using a public telephone network, connecting means 200 for selectively converting a signal transmitted from the communication terminal 100 in accordance with a control signal, the connection means 200 The data processing means 300 converts the voice signal transmitted from the digital data to be transmitted through the Internet network and restores the digital data received through the Internet network to the voice signal. The data processing means is connected to the Internet network. Internet network connection means 400 for transmitting and receiving digital data output from the 300, the voice signal output from the communication terminal 100 is directly connected to a public telephone network or packetized by the data processing means 300 Multiple connection length of the communication terminal consisting of a switching means 500 for connecting the data to the Internet via the Internet network connection means 400 . The method of claim 5, The data processing means 300, the analog digital converter 312 for converting the analog transmission signal transmitted from the connection means 200 into a digital signal, and the digital signal transmitted from the analog digital converter 312 A transmission unit (310) comprising a compressor (314) for compressing and outputting, and a transmission buffer (316) for processing and storing the compressed data appropriately for use. The reception buffer 322 temporarily stores and outputs the received data, the decompressor 324 for restoring and outputting the compressed data stored in the reception buffer 322, and digital data transferred to the decompressor. Multi-communication connection device of a communication terminal, characterized in that consisting of a receiver 320 consisting of a digital analog converter 326 to convert to. The method according to any one of claims 5 to 6, The communication terminal 100 includes at least one selected from a general telephone, a fax machine, a private exchange, an information terminal, and a base station terminal. The method according to any one of claims 5 to 6, The Internet connection means 400 is a multiplexing device of a communication terminal, characterized in that it comprises at least one selected from a modem, ISDN terminal, ADSL modem, cable modem, network interface.