KR100353597B1 - Transmitting and receiving system of chatting information, method for chatting using the same and method for researching a program rating while receiving the chatting information - Google Patents

Abstract

The present invention provides a chat information transmission / reception system, a chat method using the same, and a viewer rating survey method while receiving chat information.

The broadcast signal transmitting unit encodes chat data input via the Internet in real time and transmits the encoded chat data together with the caption data in the blanking section of the television broadcast signal. The broadcast signal receiving unit receives the transmitted TV broadcast signal and outputs a TV audio and video signal, outputs caption data and chat data included in the blanking section of the TV broadcast signal in real time, and turns on the user's request to join the chat. -Set the line to output the chat data according to the user's keyboard manipulation to the broadcast signal transmitter via the Internet. In addition, when the broadcast channel transmitter includes channel tuning channel information in the television blanking section in order to investigate the viewer rating of the broadcast channel currently being viewed, the broadcast signal receiver outputs the channel information to the broadcast signal transmitter via the Internet. You can investigate.

Description

Transmitting and receiving system of chatting information, method for chatting using the same and method for researching a program rating while receiving the chatting information}

The present invention relates to a chat information transmission / reception system, a chat method using the same, and a method of investigating a viewer rating during receiving chat information, and more particularly, to chat in a vertical blanking interval (hereinafter referred to as VBI) section of a video signal. The present invention relates to a system for transmitting and receiving information and a chat method using the same.

The Internet is a global network of on-line computers connected to governments, businesses, schools, and general networks and individuals, and is currently a network of more than 3 million computers.

The Internet began with funding from the US government in 1984, and was initially a public network limited to a limited number of people, including government and school researchers, but is now a universal network open to anyone. In Korea, computer communication companies use one-on-one information service network, Unitel, Hitel, Chollian, etc. to connect one-on-one message (e-mail) and one-to-many message delivery (Board) It offers a wide range of services, including Bulletin Board, One-Line Chat, and File Transfer.

One of the most common (popular) services of the Internet and on-line services is on-line chat (hereinafter referred to as chat).

Chat is a private method of communicating between the Internet or on-line service users, and its characteristic is that two or more users communicate by text messages in a chat room accessible through the on-line service. .

In general, only users connected to the on-line service using a telephone line and a modem can participate in the chat, and a person who participates in the chat is called a chat participant. The recent trend is to use various types of networks such as cable and cable modems and ISDN networks, not telephone lines and modems.

The conversations in the chat room are displayed in text in a Chatting window on the computer screen.

With the development of multimedia, the emergence of personal computers with the ability to play voice and audio information, the trend of combining television transmission technology and computer applications is on the rise.

In television program transmission, it has become possible to transmit additionally encoded data in the voice / video area of a television broadcast signal. For example, Korean text broadcasting for the hearing-impaired has been provided by broadcasters including KBS and SBS since MBC started service in March 1999. In particular, MBC data broadcasting, which was officially serviced in April 1999, provides various information based on HTML (Hyper Text Management Language) to the VBI area.

In the case of closed caption, VBI (Vertical Blanking Interval) is used to encode and insert characters that replace the voice part of the program. In the case of data broadcasting, VBI is used to insert a document (web document) written in HTML into a television video signal for transmission. The advantage of such data broadcasting is that it is possible to receive Internet information even without access to the Internet.

In addition, additional information can be transmitted in various ways without interfering with normal video and audio information. That is, horizontal blanking intervals, vertical blanking intervals, and the use of audio and video channels by multiplexing time or frequency. The first and last are used in color television. Here we will learn about using vertical blanking intervals.

1 is a view for explaining a scanning method of a television broadcast signal using the interlaced scanning method.

As shown in FIG. 1, one screen is composed of a total of 512 lines in which 256 fields of odd field are scanned and 256 lines of even fields are scanned. The time taken for the vertical return interval for or for the full field scan after the even field scan corresponds to 21 horizontal lines.

The first nine lines are occupied by six equalization pulses, followed by another group of vertical synchronization pulses and six equalization pulses. Thus, lines numbered from 10 to 21 can be used for other purposes. Lines 17 and 18 are used to transmit vertical-interval test signals (VITS). These images and chroma test signals examine the quality of network and station transmissions. Line 19 carries a vertical-interval reference (VIR) signal, which includes black, luminance, and chroma standards.

Line 21 is sometimes used to subtitle the video to help the hearing impaired. The first field can use all 21 lines and the second field can be used for this purpose. The transmitted NRZ information signal uses standard 7 bits + parity ASCII coding. The decoder extracts subtitle information from this vertical blanking interval and displays the letters at the bottom of the television screen.

As mentioned above, with the development of multimedia, even without using an existing TV receiver, a TV broadcasting signal can be received through a computer with a built-in TV receiving card, but a viewer who wants to participate in a broadcasting program is provided separately. Participation in the broadcast was limited due to the need to participate in the broadcast only by telephone or fax, which is a communication medium.

The technical problem of the present invention is to solve such a conventional problem, and an object of the present invention is to include the chat information of the chatter participating in the television program currently being watched in the blanking section of the television broadcast signal, and to send the demodulated message at the receiving side. By checking the text data in the chat, and if you want to participate in the chat, it provides a chat information transmission / reception system that can be connected to the online chat.

Another object of the present invention to provide a chat information transmission / reception method using the chat information transmission / reception system described above.

It is still another object of the present invention to provide a method of checking a rating while receiving the above-mentioned chat information.

1 is a view for explaining a scanning method of a television broadcast signal using the interlaced scanning method.

2 is a block diagram of a chat information transmission / reception system according to an embodiment of the present invention.

3 is a block diagram illustrating in more detail the broadcast signal receiver according to an embodiment of the present invention.

4A is a flowchart illustrating a processing path of chat data input through the chat server of FIG. 2.

4B is a flowchart for describing a processing path of channel channel information through the viewership management server of FIG. 2.

FIG. 5A is a flowchart for describing an operation of the VBI decoder of FIG. 3.

FIG. 5B is a flowchart for describing an operation of the caption processing unit of FIG. 3.

FIG. 5C is a flowchart for describing an operation of the chat processing unit of FIG. 3.

5D is a flowchart for describing an operation of a channel manager of FIG. 3.

6 is a flowchart illustrating a chat data transmission / reception method and an audience rating research method in a broadcast signal receiver according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

50: Internet 55, 60: ISP

100: broadcast signal transmitter 110: chat server

120: viewership management server 130: encoder

140: VBI inserter 150: broadcast signal transmitter

200: broadcast signal receiver 210: receiver

220: signal separation unit 230: subtitle processing unit

240: chat processing unit 242: chat decoder

244 controller 246 chat character encoder

248: keyboard press detector 250: channel management unit

260: communication processing unit 270: communication device (modem)

The chat information transmission / reception system according to one feature for realizing the object of the present invention is a chat information transmission / reception system for transmitting / receiving chat information via an internet television broadcasting system. A broadcast signal transmitter for encoding the chat data input through the Internet in real time and including the encoded chat data together with the caption data in a blanking section of a television broadcast signal and transmitting the same; And Receives the television broadcast signal and separately outputs audio and video signals, and outputs the caption data and the chat data included in the blanking section of the television broadcast signal in real time, and when the user participates in the chat, the broadcast signal. It includes a broadcast signal receiver for outputting the chat data according to the user's keyboard operation through the Internet connection with the transmitter, the broadcast signal transmitter, The broadcast signal transmitter, A chat server receiving chat data from a chat participant and providing a chat service in real time, an encoder for converting the chat data output from the chat server into a format for broadcasting and broadcasting, a personal information table corresponding to a user ID, An audience rating management server that manages / analyzes the selected channel information based on the selected channel information provided from the broadcast signal receiver and the personal information table to search the viewer ratings for each channel and outputs the searched viewer rating information for each channel to the encoder; And an inserter for adding the broadcast transmission chat data to a blanking section of a television program video signal including subtitle data, and a broadcast signal transmitter for RF transmitting a television broadcast signal to which chat data is added from the inserter.

In addition, a chat information transmission / reception method according to one aspect for realizing another object of the present invention is a chat information transmission / reception method for transmitting / receiving chat information via an Internet television broadcasting system. (a) receiving a television broadcast signal; (b) separating and outputting an audio signal, a video signal, and caption data from the received television broadcast signal; (c) Checking the current connection state, in case of the on-line state, receives the chat data through the modem and displays the chat data on the chat display window on the computer screen, and in the off-line state, the chat data is included in the television broadcast signal. Checking whether the message is included, feeding back to the step (a) if the chat data is not included, and displaying the chat data on a chat display window on the computer screen if the chat data is included; (d) checking whether there is a user's request to join the chat, and checking whether the user is in an online connection when there is a user's chat; (e) outputting the corresponding chat information according to the user's keyboard operation when the user is in the on-line state in the step (d); And (f) in the case of the off-line state in step (d), requesting on-line connection, connecting to the on-line state, and then feeding back to the step (e).

In addition, according to one aspect for realizing another object of the present invention, the method for investigating audience rating during chat information, the method for investigating audience rating during signal reception through Internet TV broadcasting system, (a) receiving a television broadcast signal; (b) separating and outputting an audio signal, a video signal, and caption data from the received television broadcast signal; (c) Checking the current connection state, in case of the on-line state, receives the chat data through the modem and displays the chat data on the chat display window on the computer screen, and in the off-line state, the chat data is included in the television broadcast signal. Checking whether the message is included, feeding back to the step (a) if the chat data is not included, and displaying the chat data on a chat display window on the computer screen if the chat data is included; (d) checking whether there is a user's request to join the chat, and checking whether the user is in an online connection when there is a user's chat; (e) outputting the corresponding chat information according to the user's keyboard operation when the user is in the on-line state in the step (d); (f) in the case of the off-line state in step (d), requesting on-line connection, connecting to the on-line state, and outputting the corresponding chat information; (g) checking whether the channel information is received and checking whether the channel is changed and the current viewing channel when the channel information is received; (h) reading the changed channel information and transmitting the changed channel information when the channel channel information is received in step (g) and when the channel change is checked; And (i) performing viewer rating analysis for each layer by using the channel information transmitted in step (h) and information of a user registered in advance.

According to such a chat information transmission / reception system, a chat method using the same, and a viewer rating survey method while receiving chat information, when receiving a TV broadcast signal that is currently being viewed, chat information or a program facilitator between viewers participating in the program besides video and audio signals And chat information with viewers, viewers who want to participate in the chat can actively participate in the program through on-line connection, and broadcasters, program providers, can investigate the viewership rate of the channel being watched. .

Then, embodiments will be described so that those skilled in the art can easily implement the present invention.

2 is a block diagram of a chat information transmission / reception system according to an embodiment of the present invention.

As shown in FIG. 2, the chat information transmission / reception system according to an embodiment of the present invention includes the Internet 50, an Internet Service Provider (ISP) 55 and 60 that provides an Internet connection service, and a broadcast signal transmitter 100. And a broadcast signal receiving unit 200.

The broadcast signal transmitter 100 includes a chat server 110, an encoder 130, a viewership management server 120, and a VBI inserter 140. The broadcast signal transmitter 100 encodes the chat data input via the Internet in real time to broadcast a television broadcast signal. The chat data encoded in the VBI section of the video stream together with the caption data is transmitted to the broadcast signal receiver 200.

More specifically, the chat server 110 performs a chat related function while communicating with a chat client (chat processor) on the receiver side. For example, the chat-related function provided by the present invention may be used as a method of participating in a broadcast program when receiving a specific TV program (for example, TV discussion program), which can communicate 1: 1 or 1: multiple conversations and pictures. Whiteboards, sending messages with your intentions, and sending files. In addition, there are various functions, but general functions will be omitted. In addition, the chat server 110 has a function to create and manage chat rooms (chat rooms). Of course, at this time, the user participating in the broadcast chat is a natural netizens verified the quality through a predetermined procedure.

The viewership management server 120 is provided with channel information (eg, user ID, viewing time, channel number, etc.) received from the channel manager and refers to the personal information table corresponding to the user ID to provide various information such as region / age / occupation. Count your viewership by category. In addition, if necessary, a command to transmit the channel channel information can be transmitted to the receiving device.

Encoder 130 receives the chat data from the chat server 110 processes the data for transmission with the television program, and then applies it to the VBI inserter 140, or the station rating management server 120 broadcasts to the receiver It receives the channel information transmission command and processes it and applies it to the VBI inserter 140.

The VBI inserter 140 inserts chat data applied from the encoder 130 into the VBI line of the broadcast signal and outputs the chat data to the broadcast signal transmitter 150.

The broadcast signal transmitter 150 converts the converted RF signal into an RF signal for wireless transmission of a broadcast signal including subtitle data, chat data, viewership survey information, and the like from the VBI inserter 140 to the VBI section. Send via

The signal output from the broadcast signal transmitter is transmitted by including chat information, subtitle information, and viewer rating survey information in a VBI section of a television broadcast signal, but may be transmitted by including such information in a horizontal blanking interval (HBI) section of a broadcast signal. It is self-evident. In addition, some signals of the broadcast signal may be removed and the above-mentioned information may be included in the removed block and transmitted. The detailed description thereof is already known, and thus description thereof will be omitted.

The broadcast signal receiving unit 200 includes a TV receiving card for receiving a television broadcast signal, a computer including a communication device (modem) for computer communication, or a STB (Set Top Box) having a communication function and a TV function. .

In more detail, the broadcast signal receiver 200 includes a receiver 210, a signal separator 220, a subtitle processor 230, a chat processor 240, a channel manager 250, a communication processor 260, and a communication device 270. Receiving the RF received television broadcast signal and outputting general television video and audio signals to a TV window and a speaker on a computer screen, respectively, and caption data and chat data included in a VBI section of the television broadcast signal. The subtitle window and the chat window are output respectively.

3 is a block diagram illustrating in more detail the broadcast signal receiver according to an embodiment of the present invention.

As shown in FIG. 3, the receiver 210 demodulates an RF broadcast signal received through an antenna and outputs the demodulated signal to the signal separator 220.

The signal separator 220 separates the audio signal and the video signal from the demodulated broadcast signal, outputs the audio signal to the speaker side, and outputs the video signal to the TV display window of the computer screen for display. In addition, the caption data, the chat data, and the channel select command signal are separated from the demodulated broadcast signal and provided to the caption processor 230, the chat processor 240, and the channel manager 250, respectively.

The subtitle processor 230 includes a Korean subtitle decoder 232 and an English subtitle decoder 234. When the subtitle data provided from the signal separation unit 220 is a Korean subtitle, the Korean subtitle protocol is performed through the Korean subtitle decoder 232. After interpreting according to the subtitle display window of the computer screen, and in the case of English subtitles are interpreted according to the English subtitle protocol through the English subtitle decoder 234 and displayed on the subtitle display window of the computer screen.

The chat processor 240 receives a chat data from the signal separator 220, including a chat decoder 242, a controller 244, and a chat character encoder 246, and outputs the chat data to a chat window on a computer screen. When the chat data is input from the chat data, the text data corresponding to the chat data is output to the chat window on the computer screen and the protocol encoder / decoder 260, respectively.

In more detail, the chat decoder 242 receives encrypted chat data from the signal separator 220 and decrypts the chat data to provide it to the controller 244. The controller 244 receives the decrypted chat data from the chat decoder 242 and outputs the chat data to be displayed on the chat window of the computer screen. Also, when the chat data of the user is input from the keyboard, the controller 244 displays the chat data on the computer screen. To control. When the chat data of the user is input from the keyboard, the chat character encoder 246 encodes the chat data and outputs it to the protocol encoder / decoder 260.

The channel manager 250 receives the channel change information and the current received channel information through the protocol encoder / decoder 260 under the on-line condition when a request command to transmit the channel channel information is received from the signal separator 220. send.

The protocol encoder / decoder 260 checks whether the current modem state is on-line state or off-line state and outputs it to the chat character encoder, and receives channel change information and current reception channel information from the channel manager 250. The encoding is provided to the modem 270, and as the keyboard pressing detection signal is applied from the keyboard pressing detector 248, the user's chat data output from the chat character encoder 246 is encoded and provided to the modem 270.

When the modem 270 receives a signal for checking the current state from the protocol encoder / decoder 260, the modem 270 outputs a response signal thereof to the protocol encoder / decoder 260 through a path opposite to the input path. Chat data provided from the encoder / decoder 260 is converted into a format suitable for transmission via a predetermined transmission line, and chat of the broadcast signal transmitter 100 via the ISP 60 and the Internet 50 for an Internet connection service. Output to server 110.

In the above description, an example in which chat data is included in a broadcast signal output from the broadcast signal transmitter and displayed on a user's computer screen is described. However, when a user chats online or receives on-line service, a general television is provided. The broadcast signal may be transmitted via a wireless path and displayed on a computer screen, and the chat data may be transmitted via a wired path.

In this case, too, it is natural that the chat data is transmitted to the chat server through the chat processor 240 and the communication processor 260, and the channel selection information managed by the channel manager is transmitted to the viewer rating management server of the broadcaster.

At this time, when the channel management unit transmits the channel information, the channel may be changed when the receiver receives the channel channel information transmission command sent by the viewership management server, and the receiver is receiving the on-line service such as on-line connection and chatting. It can be at various times, such as when.

Hereinafter, operations of the components of the broadcast signal transmitter according to the embodiment of the present invention will be described.

4A is a flowchart illustrating a processing path of chat data input through the chat server 110 from the broadcast signal transmitter 100.

2 and 4A, chat data of a chat participant input via the Internet 50 and an ISP 55 for connecting an Internet service is provided to the chat server 110 (step S310), The received chat data is provided to the encoder 130 and converted into a broadcast format (step S320).

Subsequently, the chat data converted into the broadcast format is added to the VBI section of the television broadcast signal, converted into an RF signal through a broadcast signal transmitter, and then transmitted through an antenna (step S330).

4B is a flowchart for describing a processing path of channel selection channel information through the viewership management server 120 in the broadcast signal transmitter 100.

2 and 4B, the channel selection channel information input through the Internet 50 and the ISP 55 for connecting the Internet service is received by the viewership management server 120 (step S410), and the chat participant ID is input. Based on the schedule classification (eg, occupation, age, region, etc.) as a reference, the viewer rating is calculated for each chat participant classification (steps S420 and S430).

5A is a flowchart for describing an operation of the signal separator 220 in the broadcast signal receiver.

3 and 5A, the RF demodulated broadcast signal is received from the receiver 210 to separate the general broadcast signal and the VBI data coded in the VBI section, and the audio signal of the general broadcast signal is provided to the speaker. The signal is provided to the TV display window of the computer screen, and the subtitle data, chat data, and viewership survey data coded in the VBI section are separated, and the subtitle data is output to the subtitle display window on the computer screen, and the chat data is provided to the chat processing unit. The viewership survey data is provided to the channel manager (step S510).

Subsequently, it is checked whether the decoded VBI data is caption data (step S520), and if it is caption data, it is applied to the caption processing unit to display caption data (step S525).

In addition, it is checked whether the decoded VBI data is chat data (step S530), and if it is chat data, it is applied to the chat processing unit to display the chat data in real time (step S535).

Subsequently, it is checked whether or not the channel selection command is transmitted (step S540). In the case of the channel selection command, the channel management unit is applied to output information on the channel currently being watched (step S545).

5B is a flowchart illustrating an operation of a caption processing unit in the broadcast receiving unit.

3 and 5B, decoded subtitle information is provided from the VBI decoder (step S610).

Subsequently, it is checked whether or not the Korean subtitle is used (step S620). If the Korean subtitle is interpreted according to the Korean subtitle protocol, the interpreted Korean subtitle data is provided to the subtitle display window of the computer screen for display.

Subsequently, it is checked whether the English subtitle is checked (step S630), and in the case of the English subtitle, the analyzed English subtitle data is provided on the computer screen's subtitle display window after being analyzed according to the English subtitle protocol (step S635).

5C is a flowchart for describing an operation of a chat processing unit in a broadcast receiving unit.

3 and 5C, it is checked whether the current state is on-line (step S710), and if the current state is off-line, decoded chat information is provided from the VBI decoder (step S715).

If the current state is the on-line state, it is checked whether there is a keyboard input from the user (step S720), and if there is a keyboard input, the chat character is transmitted through the communication processing unit (step S725).

After step S715 and step S725, it is displayed on the chat text display window (step S730).

5D is a flowchart illustrating an operation of a channel manager in the broadcast receiver.

3 and 5D, it is checked whether the current state is an on-line state (step S810), and in the case of an on-line state, it is checked whether a transmission command signal for transmitting channel channel information is input (step S820). When the channel selection channel transmission command is received, the channel change information and the current reception channel information are transmitted through the communication processing unit (step S830).

6 is a flowchart illustrating a chat data transmission / reception method and an audience rating research method in a broadcast signal receiver according to an embodiment of the present invention.

2 to 6, a television broadcast signal input through an antenna is first received (step S10), and a video signal, an audio signal, and a vertical blanking interval signal are separated from the received television broadcast signal (step S20).

The video signal and the audio signal separated in step S20 are demodulated and output to the television display window and speaker side of the computer screen, respectively (step S35).

In addition, it is checked whether or not the Korean subtitle data is included in the blanking section signal separated in step S20 (step S40). If the Korean subtitle data is included, the Korean subtitle data is demodulated and output to the subtitle window on the computer screen ( Step S45).

It is checked whether or not the English subtitle data is included in the blanking section signal separated in step S40 (step S50). If the English subtitle data is included, the English subtitle data is demodulated and output to the subtitle window on the computer screen (step S50). S55).

Then, it is checked whether it is currently on-line state (step S60), and in case of the on-line state, chat data is received through the set modem (step S65). In case of off-line state, the chat data is displayed in the blanking section signal. If it is included and checks whether it is included, it feeds back to step S10 (step S70).

Subsequently, the chat data input through the modem or the chat data included in the blanking section is output to the chat window of the computer screen to display the chat data in association with the currently broadcast program (step S80).

Subsequently, it is checked whether or not the chat data is input through the user's keyboard, and if it is not input, the feedback is fed back to step S10 (step S90).

In step S90, when the chat data is input through the user's keyboard, it is checked whether the current state is on-line state (step S100), and in the off-line state, the connection is made on-line via a modem (step S105). ).

In step S100, when it is in the on-line state and in the on-line in step S105, the user's chat data is transmitted (step S110).

Then, it is checked whether or not the channel selection channel information is received in the blanking interval signal (step S120). When the channel selection channel information is received, it is checked whether the channel has been changed by the user (step S130).

When the channel selection channel information is received in step S120 and the channel is changed in step S130, the changed channel information is read (step S140), and the changed channel information is transmitted through the set on-line (step S150).

Subsequently, when the channel is not changed in step S130 and after the changed channel information is transmitted, it is checked whether the channel is terminated.

In the embodiment of the present invention, the chat information is included and transmitted in the vertical blanking section of the broadcast signal. However, the chat information may be included in the horizontal blanking section of the broadcast signal.

As mentioned above, by including and transmitting chat information, which is one of on-line services, in a vertical or horizontal blanking section of a video signal, the user additionally receives chat information related to a television broadcast currently being broadcast. In addition, when the user wants to participate in the chat, the user can actively participate in the broadcast program by transmitting the chat data of the viewer through the provided modem.

In addition, the broadcasting program transmitting side, preferably the broadcasting station can automatically check the current audience rating by transmitting a signal for investigating the viewer rating in the vertical or horizontal blanking section of the video signal, the program production using this It can be used for, and also can actively induce broadcast participation from the user.

In addition, the viewer receives a TV broadcast signal that is currently being broadcast through a computer including a TV receiving card and a modem, and receives chat information linked thereto through a set modem. It can be transmitted to a program provider that transmits a broadcast signal through the Internet.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the invention as set forth in the claims below. It will be appreciated.

As described above, according to the present invention, a user can enjoy chatting online while watching a TV program, and a user who is not on-line can also view chat contents between other users and participate in a chat. If you are online, you can join the chat.

In addition, broadcasters can investigate viewer ratings for users who watch television on-line, and also receive immediate responses from viewers in real time, thereby actively inducing viewers to participate in broadcasting.

In addition, broadcasters can immediately receive on-line opinions from viewers that are received through mail, fax, and PC bulletin boards. It can also induce debate among viewers and show content of discussion to an unspecified number of viewers. In addition, it is possible to investigate the ratings during broadcasting on-line, and to increase the accuracy of the ratings survey.

Claims (11)

(Correction) In a chat information transmission / reception system for transmitting / receiving chat information through an internet television broadcasting system, A broadcast signal transmitter for encoding the chat data input through the Internet in real time and including the encoded chat data together with the caption data in a blanking section of a television broadcast signal and transmitting the same; And Receives the television broadcast signal and separately outputs audio and video signals, and outputs the caption data and the chat data included in the blanking section of the television broadcast signal in real time, and when the user participates in the chat, the broadcast signal. It includes a broadcast signal receiver for outputting the chat data according to the user's keyboard operation through the Internet connection with the transmitter, the broadcast signal transmitter, The broadcast signal transmitter, A chat server receiving chat data from a chat participant and providing a chat service in real time, an encoder for converting the chat data output from the chat server into a format for broadcasting and broadcasting, a personal information table corresponding to a user ID, An audience rating management server that manages / analyzes the selected channel information based on the selected channel information provided from the broadcast signal receiver and the personal information table to search the viewer ratings for each channel and outputs the searched viewer rating information for each channel to the encoder; And an inserter for adding the broadcast transmission chat data to a blanking section of a television program video signal including subtitle data, and a broadcast signal transmitter for RF transmission of a television broadcast signal to which chat data is added from the inserter. Characteristic chat information transmission / reception system. (delete) (Correction) The chat information transmitting / receiving system according to claim 1, wherein the inserter is a VBI inserter that adds the broadcast transmission chat data to a vertical blanking section of the television broadcast signal. (Correction) The chat information transmitting / receiving system according to claim 1, wherein the inserter is an HBI inserter that adds the broadcast transmission chat data to a horizontal blanking section of the television broadcast signal. (Correction) The method of claim 1, wherein the viewership management server receives the channel information provided from the broadcast receiving unit to aggregate the receiving channel by a specific classification based on the chat participant ID and the personal information table to increase the viewer rating by the chat participant classification Chat information transmission / reception system, characterized in that the calculation. (Secondary correction) The method according to claim 1 or 3 or 4 or 5 , The broadcast signal receiver, A receiver which receives a television broadcast signal applied from an antenna, adjusts, demodulates, and outputs a channel; A blanking section decoder for receiving a television broadcast signal from the receiver and separately outputting the audio signal, the video signal, the caption data, and the chat data; A caption processing unit displaying the caption data on a caption display window; Computer communication media for accessing the Internet; The chat processing unit which displays the chat data applied from the blanking section decoder on the chat display window, receives chat data from the keyboard and displays the chat data on the display window in the on-line state and transmits the chat data to the chat server through the computer communication medium. ; A channel manager which stores the channel change made on the receiver in a storage device and transmits the changed channel information to the viewership management server through a communication module at a time required by a broadcaster or when connected in an on-line state; And When the user attempts an on-line connection, an on-line connection is automatically performed according to a communication device connected to the receiver, and chat data and channel change data are provided from the chat processing unit and the channel manager, respectively, through the communication device. Chat information transmission / reception system comprising a communication processing unit for transmitting. 7. The method of claim 6, wherein the blanking section decoder decodes the data of the blanking section of the signal input from the broadcast receiving unit and applies the caption data to the caption processing unit, and if the chat data is the chat data, to the chat management unit. Chat information transmission / reception system for applying to the channel management unit when a channel command is authorized. (Correction) The method according to claim 6, wherein the caption processing unit A Korean subtitle decoder which receives Korean subtitle data from the blanking section decoder and interprets the subtitle data according to the Korean subtitle protocol; An English subtitle decoder that receives the English subtitle data from the blanking section decoder and interprets the subtitle data according to the English subtitle protocol; And Chat information transmission / reception system comprising a subtitle display window for displaying the Korean subtitles and English subtitles. The method of claim 6, wherein the chat processing unit A chat decoder configured to receive and decode coded chat data from the blanking interval decoder; A chat controller which outputs chat data decoded from the chat decoder to a chat display window of a computer, and also outputs a corresponding chat character according to a user's keyboard operation; And And a chat encoder for encoding the chat text provided from a keyboard to output the coded chat text. (Correction) A chat information transmission / reception method for transmitting / receiving chat information through an internet television broadcasting system, (a) receiving a television broadcast signal; (b) separating and outputting an audio signal, a video signal, and caption data from the received television broadcast signal; (c) Checking the current connection state, in case of the on-line state, receives the chat data through the modem and displays the chat data on the chat display window on the computer screen, and in the off-line state, the chat data is included in the television broadcast signal. Checking whether the message is included, feeding back to the step (a) if the chat data is not included, and displaying the chat data on a chat display window on the computer screen if the chat data is included; (d) checking whether there is a user's request to join the chat, and checking whether the user is in an online connection when there is a user's chat; (e) outputting the corresponding chat information according to the user's keyboard operation when the user is in the on-line state in the step (d); And (f) in the case of the off-line state in step (d), requesting on-line connection, connecting to the on-line state, and feeding back to the step (e) Chat information transmission / reception method comprising a. (Correction) A method of checking a rating while receiving a signal through an internet television broadcasting system, (a) receiving a television broadcast signal; (b) separating and outputting an audio signal, a video signal, and caption data from the received television broadcast signal; (c) Checking the current connection state, in case of the on-line state, receives the chat data through the modem and displays the chat data on the chat display window on the computer screen, and in the off-line state, the chat data is included in the television broadcast signal. Checking whether the message is included, feeding back to the step (a) if the chat data is not included, and displaying the chat data on a chat display window on the computer screen if the chat data is included; (d) checking whether there is a user's request to join the chat, and checking whether the user is in an online connection when there is a user's chat; (e) outputting the corresponding chat information according to the user's keyboard operation when the user is in the on-line state in the step (d); (f) in the case of the off-line state in step (d), requesting on-line connection, connecting to the on-line state, and outputting the corresponding chat information; (g) checking whether the channel information is received and checking whether the channel is changed and the current viewing channel when the channel information is received; (h) reading the changed channel information and transmitting the changed channel information when the channel channel information is received in step (g) and when the channel change is checked; And (i) performing viewer rating analysis for each layer by using the channel information transmitted in step (h) and information of a user registered in advance; Receiving audience information chat method comprising a.