KR100745614B1 - Modem - Google Patents

Abstract

The present invention relates to a communication modem device capable of blocking virus intrusion and hacking in a communication line.

The present invention is a communication modem connected to a PC, the main control unit (1) for controlling the ADSL modem control unit through the address latch and data bus buffer, the noise of the signal received under the control of the main control unit (1) And an ADSL DMT transceiver 2 for compensating for signal distortion and performing demodulation / demodulation, under the control of the main controller 1, and connected to the ADSL DMT transceiver 2, an ATM for ADSL physical media transmission. Under the control of the ATM transmission convergence unit 3 and the main control unit 1 performing the transmission convergence function of the physical layer, and connected to the ATM transmission convergence unit 3, the subscriber to perform the end-to-end ATM service In order to support the interface, the ATM interface unit 4 performing the TC and PMD functions of the ATM physical layer and the control signals of the main controller 1 can be transmitted to the DSP processor through the address latch and the data bus buffer. The address latch and data bus buffer 6, which transmits the control signal of the IDMA bus interface 5, the main control unit 1, to each component unit, is controlled by the main control unit 1, and via a communication modem. Hacking blocking chipset 7 to check and block intrusion hacking operation, and virus checking and treatment chipset for checking, treating and returning viruses transmitted through the communication modem under the control of the main control unit 1. It is a communication modem device capable of preventing virus intrusion and hacking, characterized in that consisting of).

Modem, virus, communication

Description

Modem device capable of virus and hacking checking

1 is a block diagram of an ADSL modem according to the present invention.

2 is a block diagram of receiving an Internet service provided by an ISP (Internet Service Provider) using a telephone modem.

3 is a system block diagram of an ADSL modem.

4 is a diagram illustrating an internet service network configuration through ISDN.

5 is a block diagram of an internet service network through ADSL.

6 is a block diagram of an internet service network using a cable TV network.

1 --- Main Control Unit 2 --- DMT Transceiver

3 --- ATM Transmit Convergence 4 --- ATM Interface

5 --- IDMA Bus Interface 6 --- Address Latch and Databus Buffer

7 --- hacking prevention chipset 8 --- virus checking and treatment chipset

The present invention relates to a communication modem device capable of blocking virus intrusion and hacking in a communication line, in particular, checking a virus using a communication modem device having a virus checking chip and a hacking checking chip inside the communication modem. And a device for treating and blocking hacking.

Recently, the Internet, which is in the spotlight as a variety of information collection and transmission means, is becoming an important service of information and communication. The importance of the Internet is so important that it determines the nation's competitiveness, and developed countries are making constant efforts to revitalize the Internet. In recent years, there have been movements of school informatization, regional informatization, national informatization, and national life informatization based on the Internet. However, in spite of such enthusiasm, the problems of using the Internet in Korea are the problem of the language used, the lack of internet contents and application services, and the other problems are the problems of accessing the Internet service. Currently, technologies such as Digital Subscriber Line (xDSL), Integrated Services Digital Network (ISDN), and Cable Modem (XDNL) are being developed in order to solve such high-speed Internet access problems.

In addition, as Internet services require high-speed information movement and connection speed in accordance with the trend of increasing the capacity of PCs and multimedia, there is increasing interest in solutions for high-speed Internet access. In particular, as the demand for services requiring a large amount of data transmission, such as Internet broadcasting, Internet telephony, VOD, etc., increases, efforts for high-speed Internet access are urgently needed. Accordingly, various technologies capable of high-speed data transmission through existing telephone lines have been tried, and technologies such as high-speed Internet services using idle resources of broadcasting networks, which have been previously recognized only as broadcast media, have been developed according to the convergence trend of broadcasting and communication. It has been developed and is in preparation for testing and commercial service.                         

Currently, most of the Internet users except LAN users such as companies or research institutes receive Internet services provided by ISPs (Internet Service Providers) using a telephone modem (see FIG. 2). Telephone modems range from low speed modems of 2.4Kbps to 56kbps modems as well as 64kbps modems. Sending a high speed digital signal to an existing telephone signal is theoretically limited. The telephone modem transmits and receives digital signals using modem technology in the 4KHz analog voice signal frequency band of the telephone line. However, the existing technology cannot transmit data at rates higher than 54 Kbps at a transmission bandwidth of 4 KHz. Therefore, high-speed modem technologies using a telephone line but using a wider bandwidth than a conventional telephone voice signal have been developed. This technology is xDSL technology.

  By connecting the xDSL modem to the subscriber side of the telephone line and the switch office of the telephone network, high-speed data communication from 160Kbps to 52Mbps is possible. xDSL is a general term for devices that can provide high speed digital service using DSL, SDSL, HDSL, ADSL and VDSL. A telephone line is basically two thin copper wires for transmitting human voice. The telephone modem currently used for PC communication is a device that sends a digital signal to a telephone voice (analog) signal of 4KHz. How fast a digital signal can be carried on an analog signal is basically determined by the frequency bandwidth (transmission capability) and the modulation scheme of the analog signal. xDSL technology increases the digital transmission speed by increasing the analog bandwidth of the telephone line to solve the problem of narrow bandwidth, which is a problem of the telephone line. Telephone lines can theoretically transmit analog signals with bandwidths wider than the voice bandwidth of 4KHz. However, the higher the transmission speed, the shorter the distance that can be transmitted and the better the quality of the line. Accordingly, various transmission speeds and transmission methods are being developed according to transmission distance and transmission rate application fields.

Among them, the ADSL system is connected to a broadband public network through an ATM switch 41 as shown in the system block diagram of the ADSL modem of FIG. 3 (International Signaling Point (ISP), a server, and the Internet. Send and receive bidirectional data. Thus, the ADSL system 42 is controlled and managed by the ADSL network management system to interface the bidirectional data of the broadband public network to the ATM switch 41. The POTS splitter 43 multiplexes the data from the public switched telephone network (PSTN) and the data through the ATM switching network to the ADSL system 42. In addition, the data from the ADSL system 42 separates the data of the public payphone from the ADSL data. Thus, the POTS separation unit 43 transmits data of the general public telephone to the public telephone 44 from the transmitted data, and transmits ADSL data and control signals to the PCs 46 and 48 through the external ADSL modems 45 and 47. send.

In addition, ISDN service, which is currently commercially available, has two data transfer speeds of 64Kbps and 128Kbps, which is up to four times faster than 28.8Kbps of existing telephone lines. The distinctive feature of the ISDN service is that telephone, facsimile and computer communication can be used simultaneously on a single telephone line. If you use ISDN, you need a connection device for ISDN. As a connection device, an NT (Network Termination) for connecting a telephone, a PC, a video terminal, etc. and a separate S interface device are required for PC communication of 64 Kbps (see FIG. 4).

ADSL technology, which has recently been attracting attention, is a technology that extends the transmission distance by using up-down asymmetry technology and enables data communication at a downlink speed of 1.5 to 9Mbps and an uplink speed of 16 to 640Kbps. This is a method designed to overcome the problem of xDSL technology in which many telephone lines are gathered at the telephone station and the transmission quality is greatly degraded due to interference between up and down signals between them. Suitable. For ADSL service, ADSL concentrator is required at the telephone company, and high-speed data network must be established separately from the existing telephone network. The subscriber must also have a separate ADSL modem (see Figure 5).

Cable modem is a device that provides high speed data communication through cable TV (CATV) network. The cable modem performs data communication using one TV signal band (downlink channel) transmitted from the broadcasting station to the subscriber and one uplink channel transmitted from the subscriber to the broadcasting station. The transmission rate of the downlink channel from the broadcasting station to the subscriber can be up to 36Mbps, and the transmission rate of the uplink channel transmitted from the subscriber to the broadcasting station can be up to 10Mbps (see FIG. 6).

High-speed information infrastructure will be formed around cable TV local broadcasting stations. Therefore, the cable TV local broadcasting station will be able to provide various multimedia services such as internet-based internet phone, internet video phone, video-on-demand, home shopping and video conferencing as well as cable TV service. In addition, linking local broadcasting stations with a high-speed information communication network may form an information infrastructure in which the whole country is bounded by a high-speed LAN.                         

As such, the number of users accessing the Internet by using various communication networks and equipments is increasing exponentially, and the amount of information transmitted thereby is enormously increasing.

However, the side effects of the rapid development of information and communication networks are also appearing. The most representative examples of the examples are computer virus damage, computer hacking damage and side effects.

In order to prevent such side effects, large businesses and major organizations that connect to servers such as enterprises, government offices, and research institutes are using their own expensive devices and programs to prevent such damages. However, due to the recent rapid development of the Internet, the virus has been spreading beyond the diskette or other storage media, and is now spreading due to network connection, e-mail by the communication network and data download from the Internet site. . If the virus is invaded via e-mail or the Internet, its propagation speed is instantaneous and the damage is enormous. Therefore, in the case of the virus checking method using a program (software), it was possible to check when transferring and copying by a storage device such as a diskette, but in recent years, most PC users such as electronic communication, e-mail, etc. Since the use of a program that is automatically recognized and delivered when the mail is delivered, there is a problem that the probability of preventing or combating the virus is very low if the virus is to be transmitted by means of delivery such as email or the Internet.                         

In addition, the use of a PC using a network or the Internet network, such as the recent hacking technology has been continuously developed it is very difficult to prevent this situation. Moreover, in recent years, many people do not even know that they have been hacked, and lately, they often find out if the damage caused by the leakage of information has occurred directly, and it is very difficult to prevent them from personal PC users.

Accordingly, the present invention is to solve the problems of the prior art as described above, the PC user using the communication network to check the computer virus invading through the communication network through the communication modem in the modem of the communication delivery terminal device to find and treat the virus It is a technical problem to provide a communication modem apparatus that can be used.

In addition, the present invention is to solve the problems of the prior art as described above to provide a communication modem device that allows a PC user using a communication network to find a hacker invading through the communication network using a communication modem and immediately block it. We assume person problem.

In addition, the present invention solves the problems of the prior art as described above, the PC user automatically upgrades the antivirus program and the hacking block program without performing the upgrade of the antivirus program and the hacking block program using a communication modem. It is a technical problem to provide a communication modem device capable of being used.

Hereinafter, the present invention will be described in detail.

The present invention provides a communication modem connected to a PC,

Main control unit (1) for integrally controlling the ADSL modem control device through the address latch and data bus buffer,

ADSL DMT transceiver 2 for compensating for the noise and signal distortion of the received signal under the control of the main controller 1 and performing modulation / demodulation;

An ATM transmission converging unit 3 under the control of the main controller 1, connected to the ADSL DMT transceiver 2, and performing a transmission convergence function of an ATM physical layer for ADSL physical medium transmission;

An ATM that is controlled by the main controller 1 and connected to the ATM transmission converging unit 3 and performs a TC and PMD function of an ATM physical layer to support a subscriber interface to perform an end-to-end ATM service. Interface unit (4),

An IDMA bus interface 5 which allows the control signal of the main controller 1 to be transmitted to the DSP processor via an address latch and a data bus buffer;

An address latch and a data bus buffer 6 serving to transmit control signals of the main controller 1 to each component,

Under the control of the main control unit 1, the hacking blocking chipset (7) for blocking the hacking operation invading through the communication modem,

Under the control of the main control unit 1, virus intrusion and hacking blocking is possible, characterized in that consisting of a virus check and treatment chipset 8 to check, treat and return the virus transmitted through the communication modem. Communication modem device.

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

1 is a block diagram of an ADSL modem of an embodiment according to the present invention.

As shown in FIG. 1, in the ADSL communication modem, the main control unit 1 which controls the ADSL modem control device through the address latch and the data bus buffer is integrated into the system through the address latch and the data bus buffer 6. A central processing unit (11) for controlling overall, a dynamic random access memory (DRAM) (12) for storing data processed by the central processing unit (11), and the central processing unit (11) An erasable programmable read only memory (EPROM) 13 for storing a program to be stored, and a rewritable flash memory 14 for storing data of the central processing unit 11; The central processing unit 11 is composed of a serial input / output unit 15 to input / output with the external block.

The ADSL DMT transceiver 2 performs a control function based on a real-time processing operating system under the control of the main controller 1, and analyzes and inserts an OAM (Operation And Maintenance) cell. And the DSP (Digital Signal Process) processor 21 for setting the initialization and operation mode of the chip, and the noise and signal distortion of the signal to be transmitted / received to and from the ATM network under the control of the DSP processor 21. An analog front-end unit connected to the filter and line driver 22 for compensating and converting a digital signal and an analog signal under the control of the DSP processor 21. Discrete Multitone Modulation (DMT) signal connected to the (AFE, Analog Front-End) 23 and the analog front-end unit 23 and performing a modulation / demodulation function under the control of the DSP processor 21. Processing unit 24 and the DMT scene Connected to the call processing unit 24, and under the control of the DSP processor 21 performs a framing by processing the bidirectional data processing with the ATM transmission convergence unit 40 in a first in first out (FIFO) method It consists of a framer and an interface unit 25.

The ATM transmission converging unit 3 performs a transmission convergence (TC) function of the ATM physical layer for ADSL physical medium transmission.

In addition, the ATM interface unit 4 performs the TC and PMD functions of the ATM physical layer to support an Asynchronous Transfer Mode Forum (ATMF) 25Mbps subscriber interface, and may use an IDT77105 device of IDT Corporation. It also implements logic for accessing the utility bus interface, the control bus interface of IDT.

The IDMA bus interface 5 allows the control signal of the main controller 1 to be transmitted to the DSP processor 21 via the address latch and data bus buffer 6.

The address latch and the data bus buffer 6 serve to transmit control signals of the main controller 1 to each component.

The hacking blocking chipset 7 is controlled by the main control unit 1 and blocks the hacking operation invading through the communication modem. This means that for any data communication system connected online to the data communication network, the hacker uses a hacking program to connect to the database of the data communication system, thereby destroying, modifying or downloading the resources contained in the database and illegally exploiting it. Therefore, in recent years, the establishment of a hacking prevention system (FIREWALL) for hacking prevention in the data communication system has been required significantly.

In other words, the hacking blocking chip set 7 used in the present invention detects the hacker's access to the PC through the communication network and sends a signal to the central processing unit of the main controller 1, in which case the main controller receives the signal. It immediately blocks the transmission of signals and information to the PC.

In this case, the hacking blocking chipset 7 may operate a three-stage blocking function of high, medium, and low when a hacker intrudes through a communication transmission means to a PC using a communication network.

In addition, the hacking blocking chipset 7 includes a memory unit in itself, so that the upgrade of data for hacking blocking can be automatically upgraded from the hacking blocking management server.

The virus checking and treatment chipset 8 is controlled by the main control unit 1, and checks, treats, and returns the virus invaded and transmitted through the communication modem.

Computer viruses are designed to rapidly spread programs or e-mails containing viruses by using an environment that is recently connected online to a data communication network, thereby destroying or damaging resources and computer hardware contained in the propagated database. . Therefore, in recent years, it is highly required to prevent and cure virus penetration through computer viruses through communication means.

That is, the virus checking and treatment chipset 8 used in the present invention detects a computer virus when accessing a PC through a communication network in the modem itself, and sends a signal to the central processing unit 11 of the main controller 1. In this case, the main controller blocks the transmission of the corresponding signal and information to the PC.

At this time, the virus checking and treatment chip set 8 includes a memory unit in itself, so that the upgrade of data for computer virus checking and treatment can be automatically upgraded from the computer virus checking and treatment management server.

Reference numeral 31 is an LED (Light Emitting Diode) display 31 which displays the processing result of the ADSL modem control apparatus performed through the address latch and the data bus buffer 6.

Reference numeral 32 denotes a utility bus interface that allows the control signal of the main controller 1 to be transmitted to the ATM interface 50 through an address latch and a data bus buffer.

Although preferred embodiments of the present invention have been described above, the present invention may use various changes, modifications, and equivalents. That is, in the communication modem made by the present invention, a hacking blocking chipset 7 which checks and blocks a hacking operation invading through the communication modem and a virus checking that checks, treats, and returns the virus transmitted through the modem. And the application of the treatment chipset 8 to the communication modem is not limited to the ADSL communication modem, but may include xDSL (Digital Subscriber Line) modems, integrated services digital network (ISDN) modems, cables, such as telephony modems, VDSL modems, and SDSL modems. It is possible to apply to the modem (Cable Modem).

In addition, it is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

According to the present invention, a computer virus invading through a communication network through a communication modem is checked by a modem, which is a communication transmission terminal device, before being transmitted to a PC.

In addition, according to the present invention, it is possible to find a hacker who intrudes through a communication network before invading the PC and immediately block it.

In addition, according to the present invention, it is possible for the PC user to automatically upgrade the antivirus program and the hacking block program without using the communication modem to manually upgrade the antivirus program and the hacking block program.

Claims (5)

In a communication modem connected to a PC, The main controller 1 controls the ADSL modem control unit through the address latch and the data bus buffer, and compensates the noise and signal distortion of the received signal under the control of the main controller 1, and performs modulation / demodulation. ATM transmission convergence under the control of the ADSL DMT transceiver 2 and the main controller 1, connected to the ADSL DMT transceiver 2, and performing the ATM convergence function of the ATM physical layer for ADSL physical media transmission. Part 3, under the control of the main control unit 1, is connected to the ATM transmission convergence unit 3, TC and PMD of the ATM physical layer to support the subscriber interface to perform end-to-end ATM service The ATM interface unit 4, which performs a function, the IDMA bus interface 5, which allows the control signals of the main control unit 1 to be transmitted to the DSP processor through an address latch and a data bus buffer, My An address latch and data bus buffer 6 which transmits a signal to each component, and a hacking blocking chipset 7 under the control of the main control unit 1 and blocking a hacking operation invading through a communication modem 7 ), Under the control of the main control unit 1, virus intrusion prevention and hacking blocking, which comprises a virus checking and treatment chipset 8 for checking, treating and conveying the virus transmitted through the communication modem. Possible communication modem device. The communication modem apparatus of claim 1, wherein the communication modem is applied to any one of a telephone communication modem, a VDSL modem, an SDSL modem, an ISDN modem, and a cable modem. The hacking blocking chipset (7) is a three-step blocking function of high, medium, low when a hacker intrudes through a communication transmission means to a PC using a communication network. Communication modem device capable of preventing virus intrusion and hacking, characterized in that the application. The communication modem device as set forth in claim 1, wherein the hacking blocking chipset (7) is configured to automatically upgrade the data for hacking blocking from the hacking blocking management server. The method of claim 1, wherein the virus checking and treatment chipset (8) has a memory unit in itself to upgrade the data for computer virus checking and treatment to upgrade automatically from the computer virus checking and treatment management server A communication modem device capable of preventing virus penetration and blocking hacking.

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