KR100406631B1 - Apparatus and method for providing and obtaining goods information through broadcast signal - Google Patents

Abstract

The present invention relates to a method and apparatus for providing product information through a broadcast signal and a method and device for acquiring the product information through the same, selecting a specific product in a scene of the broadcast program and providing information on the broadcast signal of the digital data. The terminal stores only the information on the newly received product in the received product information, so that the viewer selects a desired product from the received product information at the time of watching the broadcast program or after the end of the viewing, thereby providing additional information about the product. By requesting and acquiring website access information of the Internet which can be obtained from a designated site, it is possible to obtain additional detailed information about a desired product through the obtained access information.

Description

Providing product information through a broadcast signal and a method and device for obtaining product information through the same {Apparatus and method for providing and obtaining goods information through broadcast signal}

The present invention relates to an apparatus and method for providing product information related to screen contents of a broadcast program to a broadcast signal provided through airwaves or the Internet, and obtaining additional information about the product required for shopping from the provided product information. will be.

Due to the development and popularization of communication technology, communication lines have been established in the house, and users can access the desired internet site anytime and get the necessary information whenever they need it. By delivering information, the Internet is used as a marketing tool.

Furthermore, video equipment products such as televisions have their own communication functions or communication functions through devices such as set-tops, thereby enabling two-way communication between video devices as well as computers. It was used as. That is, operators have proposed a method of adding the product information to the broadcast signal received by the video device so as to select the product information and use it for marketing of the desired product.

Among such marketing methods, currently known methods include transmitting information capable of distinguishing products associated with the broadcast signal, for example, a product name and a product classification code, together with a broadcast signal, and the viewer watching the broadcast signal. On the other hand, when a specific key is input, the video signal at that time is output on a still screen, and the product names are also output in the form of a list from among the product classification information associated with the screen.

Then, the viewer selects a desired product from the output list, and when an arbitrary product is selected, the video apparatus transmits a classification code of the corresponding product to a designated website or a website of a general broadcasting station through a connected communication line. Receive access information of the site through the communication line that can show additional detailed information such as purchase information, such as appearance, price, etc. for the product.

Upon receiving this connection information, the video device automatically transmits the connection information via a communication line or by user's selection, thereby accessing a site where a viewer can purchase a selected product and making necessary shopping. .

However, in the method of providing shopping information through the video screen as described above, since the viewer takes a considerable time to receive information for shopping for a particular product, there is a long problem that a viewing disorder occurs, and the purchase desire is Although the generated products are displayed on the video screen of the broadcast program, there is a problem in that the viewer cannot obtain purchase information about the product or cannot shop the product unless the viewer wants to stop watching the program currently being viewed.

The present invention provides the product information through the broadcast signal and the product information obtained through the broadcast signal to more quickly obtain the purchase information for the product when the desired product is displayed on the video screen while watching the broadcast over the air or the Internet It is an object of the present invention to provide a method and apparatus.

It is still another object of the present invention to provide product information associated with a video screen so as to obtain purchase information on a desired product through communication without interrupting the viewing while watching a broadcast over the air or the Internet, It is to provide a method and apparatus for acquiring purchase information and the like of a desired product using the provided information.

1 illustrates a configuration of an embodiment of an apparatus for providing product information through a broadcast signal according to the present invention.

2 illustrates an example of a form in which broadcast signal data and product information data are generated and stored;

3 illustrates a state in which a digital broadcast receiver for receiving image data according to the present invention is connected and connected to the Internet.

4 illustrates a configuration of a digital broadcast receiver according to the present invention.

FIG. 5 is a diagram illustrating functions of a demux and a section filter of the digital broadcast receiver of FIG. 4.

6 illustrates an example of storing access information and product information received according to the present invention;

FIG. 7 illustrates an example of a product selection screen output by using the stored data of FIG. 6.

8 shows another example of storing the access information and product information received according to the present invention,

9 illustrates an example of a product selection screen output by using the stored data of FIG. 8;

10 shows another example of storing the access information and product information received according to the present invention,

FIG. 11 illustrates an example of a product selection screen output by using the storage data of FIG. 10.

12 illustrates a state in which a web receiver receiving image data according to the present invention is connected to the Internet.

FIG. 13 illustrates a configuration of a web player which is an embodiment of a terminal for receiving a broadcast signal according to the present invention.

FIG. 14 illustrates the functions of the stream decoder and the guide information component of the web player of FIG.

※ Explanation of code for main part of drawing

10: tuner section 11: channel decoder section

12: demux 13: video decoder

14: video memory 15: video encoder

16: Audio decoder unit 17: D / A converter

18: section filter unit 19: service information memory

20: guide information component 21: control unit

22: flash memory 23: RAM memory

24: network connection unit 51: video signal acquisition unit

52: product information component 53: encoder

54: storage unit 55: multiplexer

56: control unit 100: digital television

110: network connection / processing unit 111: stream decoder

112: video decoder 113: video memory

114: audio decoder 115: guide information component

116: additional information memory 117: control unit

118: RAM memory 119: Flash memory

200: air station 300n: server

400: WebTV 500: Internet Station

In order to achieve the above object, the present invention provides product information and a method and device for acquiring product information through the same. In providing product information with an image signal, additional detailed information such as purchase information about the product may be acquired. It is characterized by providing access information together.

Product information providing and product information acquisition method and apparatus according to the present invention for achieving the above object, the product is continuously received at the terminal, such as a computer or a television that provides the product information with the image signal, receiving the When the information is compared with the previously received product information and determined as product information for a new product, it is another feature in that it is added to the previously stored product information and stored, and the stored product information is provided at the user's request.

Hereinafter, exemplary embodiments of a method and apparatus for providing product information through the broadcast signal and obtaining the product information through the same according to the present invention will be described in detail with reference to the accompanying drawings.

1 illustrates a configuration of an embodiment of an apparatus for providing product information through a broadcast signal according to the present invention.

The apparatus of FIG. 1 includes a video signal acquisition unit 51 for acquiring a video signal from a medium on which a video signal is recorded, and a format in which a reception device can decode the video signal acquired from the video signal acquisition unit 51. An encoder 53 for encoding, a product information construction unit 52 for obtaining product information from a medium on which product information is recorded, output image data of the encoder 53, and output data of the product information construction unit 52; A storage unit 54 for storing the data, a multiplexer 55 for muxing and outputting the video data stream and the product information stored in the storage unit according to a time code for interworking; The video signal acquisition unit 51 encodes a segment of the video signal acquired, and encodes a time code for linking the section of the encoded video signal with the contents of the corresponding product information. Is configured to include a control unit 56 that the pre-addition to the beam.

The commodity information configuration unit 52 may obtain commodity information to be transmitted in addition to the video signal from information input by an operator through a key input means, without using a recording medium. The product information may include information for recognizing the product to viewers, for example, a product name, a scene associated with the product, an icon or the name of the cast, and site address information for obtaining the product information. It is configured to include detailed information such as.

The process of muxing the video signal and the product information by the apparatus of FIG. 1 is performed as follows.

First, the image signal acquisition unit 51 obtains an image signal through a recording medium, and outputs to the encoder 53 only a section designated by the controller 56 among the obtained image signals. The rear encoder 53 encodes the input video signal into data having a predetermined format and stores the received video signal in the storage unit 54. When this process is finished, the controller 56, in response to an operation command for selecting a product of the operator, is related to the previously encoded video screen, that is, the image of the product information acquired by the product information configuration unit 52. Outputs product information related to the output or output product so that the information is also stored in the storage unit 54.

When both pieces of information are stored as described above, the controller 56 generates and adds a time code for interlocking the encoded image section data and the product information data corresponding to the section in time. Through this process, the storage unit 54 stores data configured as shown in FIG. 2.

On the other hand, while the above data encoding process is in progress or after the encoding process is finished, the multiplexer 55 sequentially encodes the encoded image section data among the data stored in the storage unit 54. If the time code is detected, the product information of the same time code as the time code is transmitted, followed by the subsequent transmission of the video section data. By this process, the data stored as shown in FIG. 2 is multiplexed and transmitted in the order of DST # 1, product information # 1, DST # 2, and product information # 2. At this time, the time code for adjusting the transmission time is not transmitted by the multiplexer 55.

The image data and the product information multiplexed by the multiplexer 55 may be broadcast by being stored in a separate recording medium instead of being immediately transmitted, and then read and transmitted from the recording medium at the start of broadcasting.

According to the receiver, the data stream mixed by the multiplexer 55 may be modulated by high frequency after channel coding, if necessary, and transmitted over the air, and in the case of broadcasting through the Internet, an appropriate transmission format may be connected to the terminal. Are sent to the network.

In addition to the above-mentioned transmission method of the product information, the product information may be inserted into a field acceptable in the digital television broadcast format, for example, a service information field and transmitted.

Hereinafter, a process of acquiring additional information of a product, which is performed by a terminal receiving a video signal including product information, broadcasted over the air by the above-described method, will be described in detail.

3 is a diagram illustrating a state in which a digital broadcast receiver for receiving image data according to the present invention is connected to the Internet, wherein the digital broadcast receiver 100 is wirelessly transmitted from the broadcasting station 200 as described above. Receiving a digital broadcast signal including a screen to display a high-definition image, and connected to the various servers 300 connected through the Internet, for example, providing a product information, or a plurality of servers capable of electronic commerce Is connected via internet.

The digital broadcast receiver 100 may be configured as a digital television, the configuration of which is illustrated in FIG. 4. Looking at the configuration, the tuner unit 10 for tuning the signal of a specific frequency band of the digital broadcast signal band received through the broadcast receiving antenna (Ant); A channel decoder 11 for decoding and outputting data of a dual channel selected by restoring a multi-channel signal multiplexed and inserted into a signal of a specific frequency band tuned by the tuner 10. A demux 12 for dividing the video data, the audio data, and the service information data including the product information into different paths and outputting them separately; A video decoder 13 for decoding the video data output from the demux 12 and restoring and outputting the original uncompressed video data; A video memory (14) for temporarily storing the decoded video data or data necessary for a decoding operation; An image encoder (15) for encoding and decoding the decoded video data into an NTSC or PAL video signal suitable for an image display; An audio decoder 16 for restoring and outputting audio data output from the demux 12 into original uncompressed audio data; A D / A converter 17 for converting the decoded audio data into an analog signal suitable for an audio output; On the basis of the attribute of the service information data output from the demux 12, the output is separated into program specification information (PSI), electronic program guide information (EPG), and URL information ( URL: Universal Resource Locator) for a product. A section filter unit 18; A service information memory 19 for separately storing the program specification information, the electronic program guide information, and the UEL information, which are separately output; A guide information construction unit 20 for searching and reading the classified and stored service information and organizing the data into a guide image screen; A TCP / IP (Transport Control Protocol / Internet Protocol) program and a web browser program, the network connection unit 24 being connected to the Internet; A control unit 21 for controlling the operation of the constituent means according to an input key requested from a user; It comprises a flash memory 22 and a RAM memory 23 for storing data necessary for the operation control in the control unit 21.

In the digital television 100 configured as described above, the tuner unit 10 transmits a digital broadcast signal of a specific frequency band among the broadcast signals received through the broadcast reception antenna according to the set channel number of the received broadcast. Tuned and input to the channel decoder section 11. The channel decoder 11 demodulates the tuned signal, restores the digital data having about 4 to 8 channels multiplexed therein, and then applies the control signal according to the current setting channel number applied from the controller 21. By selecting one broadcast channel from the recovered digital data, only the digital broadcast signal of the selected broadcast channel is decoded and output to the demux 12.

On the other hand, as shown in FIG. 5, the digital broadcast data output from the channel decoder 11 includes video data (V), audio data (A), and service information data (S) including product information. In the form of interleaving, the demux 12 grasps the property by the header information of the data, and accordingly outputs the data into a video data stream, an audio data stream, and a service information data stream.

Accordingly, the video decoder 13 decodes the video data separated from the demux 12 and reconstructs the original uncompressed video data, and the image encoder 15 receives the same. After encoding the video signal of the NSTC or PAL method suitable for the video display, it is output. At this time, if the restored video data is an infra-coded picture, the video decoder 13 stores the restored data in the video memory 14 as it is. Alternatively, when there is a still picture inserted separately from the broadcast program, the video decoder 13 does not decode it and outputs the same to the video encoder 15. 14).

In addition, the audio decoder 16 decodes the audio data separated and output from the demux 12 and restores the original uncompressed audio data, and the D / A converter 17 performs this. The analog audio signal is converted and output.

Meanwhile, the section filter unit 18 separates and outputs service information data separately output from the demux 12 into program specification information, electronic program guide information, and UEL information about a product according to the type of information. In the service information memory 19, the type of the service information is included in the header information of the transmission packet constituting the service information data separately output from the demux 12. Since the type information that can be identified is transmitted, the section filter unit 18 searches for and confirms the type information in the header information, and then stores and stores the service information included in the payload field for each type. Done.

If the type of the transmission packet is a transmission packet corresponding to the UAL information on the product, the payload field provides information or detailed purchase information on a specific product in the scene displayed on the digital television 100. It includes the UEL information about the website, the product code, and various additional information about the product, for example, data constituting a product name (Item_name).

In addition, the additional information may be configured in various ways. For example, entry information of a base image or a still image in which a specific product having UAL information is included in a scene, and icon data corresponding to the specific product may be included. In addition, the base image or base image entry information, and the position coordinate information of a specific product to be able to select and specify a specific product highlighted or marked in the base image or still image Can be.

Accordingly, in the service information memory 19, program specification information, electronic program guide information, and UL information separated and output from the section filter unit 18 are separately stored, as well as the UL information, a product code, and associated therewith. Various additional information is also stored.

Hereinafter, various embodiments of accessing a website for providing additional information on a specific product on a screen outputted to a digital television using the UEL information, product code, and additional information stored as described above will be attached. It will be described in detail with reference to the drawings.

FIG. 6 shows an example of additional information composed of URL information (URL_info), a product code, and a brand name stored in the service information memory 19. As shown in FIG.

The product code is to prevent duplication of the UAL information and the like for a specific product transmitted in a digital broadcast signal. For example, in the section filter unit 18, when the transmission packet separated and output from the demux 12 is a transmission packet corresponding to the UAL information, the product code included in the payload field is checked, and the After determining whether the product code is already stored in the service information memory 19 and whether it overlaps with the product code, the product code and the product name, and the The UL information can be prevented from being redundantly stored unnecessarily.

When a user who watches the digital television 100 inputs a specific key, for example, a web surfing key, while watching a broadcast program or after the broadcast program is terminated, the control unit 21, The video decoder 13 may be controlled to stop decoding of data of a broadcast program, read a product code, a product name, and a UL information stored in the service information memory 19, and the user may select and confirm the information. In order to ensure that the information is provided to the guide information configuring unit 20, the display unit 20 is displayed on a part of the screen of the digital television 100. As illustrated in FIG. 7, the video screen output by the guide information structuring unit 20 displays a product name of a specific product and associated UAL information in a list selection menu. It is possible to select a specific product by using an up / down key and the like, and the UL information may not be displayed on the screen as necessary, thereby allowing more brand names to be displayed on one screen.

Accordingly, the user can select a specific product desired by the user on a guide screen. When the user makes a selection, the controller 21 confirms the UEL information stored in association with the specific brand name selected by the user. A website that provides detailed information or purchase information on a selected product by operating the network connection unit 24 equipped with a TCP / IP program to switch to a communicable state with the Internet and then providing the URL information to the Internet. Receive web document data from The content of the received web document is interpreted by the web browser function of the network connection unit 24, and the data of the interpreted content is provided to the guide information constructing unit 20 and outputted as an image screen. This desired product, i.e., a product of interest on the scene displayed on the screen during viewing, can be searched more quickly on the Internet website immediately during viewing or after the end of viewing.

FIG. 8 shows another example of additional information composed of the URL information (URL_info) stored in the service information memory 19, an entry of a base image or still image data, and an image icon of a product. The image icon is intended to more easily identify a specific product in the still image screen, which may of course be replaced with a brand name.

When the user watching the digital television 100 inputs a specific key, for example, a web surfing key, while watching a broadcast program or after the broadcast program is terminated, as in the above-described embodiment, The controller 21 stops decoding the broadcast program, controls the guide information configuring unit 20, and stores the information of FIG. 8 stored in the service information memory 19 up to that point in time. 100) on the screen. In addition, the controller 21 controls the video encoder 19 to display the latest base image or still image data stored in the video memory 14, and simultaneously displays the displayed base. The icon data and the UEL information of the product group having the image or still image and the entry information (or order information) are read and provided to the guide information configuring unit 20 so as to be superimposed on the screen as a selection menu. In this manner, the guide screen shown in FIG. 9 is output. On this output screen, the user can select and specify a specific product through an up / down key or the like.

Accordingly, when the user selects a desired product icon on the screen displayed in the still image, the controller 21 checks the UEL information stored in association with the specific product icon selected by the user, and then uses the information as described above. In the same process as described above, the web document including the additional information on the product is received and the information included therein is transmitted to the viewer.

For reference, the UEL information displayed on the guide screen of FIG. 9 may be prevented from being displayed on the screen as needed. Also, if the user desired product is not on the currently displayed screen, another screen, that is, the previous screen may be requested. The controller 21 checks the entry information of the image preceding the base image or the still image which is now displayed in the information of FIG. 8, and uses the same to display the previous base image or the still image stored in the video memory 14. Display the screen, and also displays the UEL information about the goods displayed on it.

Alternatively, when scrolling the product icon by using the '△, ▽' button shown in Fig. 9, when the boundary line is reached, information about the previous or next still image and the product associated with the screen is displayed. It can also be displayed.

Fig. 10 shows another example of additional information consisting of UAL information URL_info stored in the service information memory 19, entry of base image or still image data, and positional coordinate information on the screen on which the product is displayed. It is shown. In the embodiment of FIG. 10, only the position coordinate information is different from the example of the additional information of FIG. 8.

Meanwhile, in order to more effectively achieve the embodiment of FIG. 10, it is preferable that a still image expressed in the form of highlight or marking is separately provided from a broadcasting station in an area of a product having information about the product. . 11 is an example of a still image displayed on a screen by marking a product having product information in an image according to this embodiment.

In the embodiment of FIG. 10, as in the embodiment of the information of FIG. 8, when a viewer requests, the still image is displayed on the screen together with information on products related to the still image. At this time, a cursor is also generated to allow the viewer to select a product on the screen so that the viewer can also overlap the display.

Accordingly, when the user selects a specific product that is highlighted or marked by using a cursor displayed according to the movement in the still image, the controller 21 grasps the coordinates of the selected position, and then When the distance between the coordinates is compared with the respective position coordinate values of the stored data of FIG. 10 and the coordinates are within a certain distance, after confirming the stored UEL information associated with the position coordinate information, the confirmed UEL information is used. In the same manner as in the above-described embodiment, the web site is accessed to receive a web document of a desired product and output to the viewer.

Hereinafter, when a digital video signal including product information is broadcasted through the Internet, a process of acquiring purchase information of goods, which is performed by a terminal receiving the same, will be described in detail.

12 illustrates a configuration in which a Web TV, which is a terminal for receiving an image signal, is connected to the Internet. The Web TV 400 is provided with the box, to receive the Internet broadcasting signal including the product information display and output the video image provided from the Internet broadcast station 500, and at the same time, connecting a plurality of servers connected through the Internet (300 ₁ 300 _n ), for example, has a function of providing product information or connecting to a plurality of servers capable of electronic commerce via the Internet.

13, the web broadcast signal 400 is provided from the internet broadcasting station 500 in a multicasting or unicasting manner, and the internet broadcasting signal. A network connection / processing unit (110) for receiving information about a particular product in the scene of the product and internet access information of the product, and restoring the data into separate data; A stream decoder 111 for channel decoding the separated Internet broadcast data and separating and outputting the separated Internet broadcast data into an audio and video stream; A video decoder (112) for decoding the separated video stream and outputting the video signal; A video memory 113 for storing video data or still image data necessary for restoring the video signal; An audio decoder (114) for decoding the separated audio stream and outputting the audio signal as an audio signal; An additional information memory 116 for storing information about the goods and internet connection information of the goods in association; A guide information constructing unit (115) for generating and displaying a guide image screen for searching and reading the stored information to select the Internet access information; A controller 117 for controlling the operation of the constituent means according to an input key requested from a user; And a flash memory 119 and a RAM memory 118 in which data necessary for controlling the operation of the controller 117 and a web browser program are stored.

When the video data stream casted through the Internet is a data format of a media player of a window, the stream decoder 111, the video decoder 112, and the audio decoder 114 are centered. It may be replaced by a media player program executed by a processing unit (CPU).

Hereinafter, various embodiments in which the webactive configured as described above is connected to a website providing information on a specific product on a screen on which an image is output are described in detail with reference to the accompanying drawings. do.

First, the network connection / processing unit 110 separately outputs a data stream received through the Internet into an internet broadcast data stream, which is moving image data, and a product information data stream, according to a predetermined protocol. The separated video data stream is output to the stream decoder 111, and the separated product information data stream is output to the guide information configuring unit 115.

On the other hand, the stream decoder 111, after channel decoding the video data stream, as shown in Figure 14, based on the attribute information, respectively separated into compressed audio and video data, the compressed audio Data is converted into an audio signal by the audio decoder 114, and the compressed video data is converted into a video signal by the video decoder 112 and outputted. The video decoder 112 is controlled by the controller. Under operation control of 117, among the video data to be processed, base image data can be selectively stored in the video memory 113, wherein entry information for indexing the stored base image data is the guide information. Provided to the configuration unit 115 and recorded in association with the product group in the product information received at that time. When a separate still image for selection is included and received, the video decoder 112 stores the still image data in the video memory 113 without decoding and outputting the same as a stream of a moving image, and indexes it. The entry information for providing to the guide information configuration unit 115 is provided.

The guide information configuring unit 115 extracts only the product information from the product information data stream and stores the product information in the additional information memory 116 or retrieves the selected information through a screen of the web player 400. It will be provided as a guide video to ensure that.

When product information is transmitted together with a video signal by Internet broadcasting, which is different from the digital broadcasting of airwaves, the product information and the connection information associated with the image output screen are not included in the product information or the video information. May be provided. Accordingly, in the embodiment where the web broadcaster 400 is provided with the product information without the connection information as described above, at the time when the product information is received, the basis image before or after the closest to the time point is received. Alternatively, the guide information configuring unit 115 is controlled to estimate a still image as an image screen associated with the product information, generate connection information with the image, and store the product together with the product information in the additional information memory 116. Done. In this case, when the connection information is stored in the additional information memory 116, it is necessary for an embodiment of providing a guide screen for selecting a product together with a video screen related to the product that has been watched or watched. As in the embodiment of Fig. 7, it is not necessary to present a brand name to be selected as a guide screen and to present a screen which is not related to the product to be selected as a background screen.

Similarly to over-the-air broadcasting in Internet broadcasting, when product information is provided together with the product code, information about the same product is prevented from being duplicated and stored in the additional information memory 116. .

Similar to the digital television 100 described above, the web player 400 of FIG. 13 may provide the viewer with the received product information in various forms. That is, when the product name, the product code, and the UL information are provided as the product information, the product information is stored in the additional information memory 116 as shown in FIG. 6, and when the viewer requests the guide information component 115 to FIG. 7. Provides a guide screen of the form When the icon data and the UAL information are provided, the data is stored as shown in FIG. 8, and the selection screen is generated and provided in the form as shown in FIG. 9. When the coordinate information and the UAL information are provided, the product information as shown in FIG. 10 is provided. When the viewer requests the video, the product selection screen shown in FIG. 11 is generated and output.

When the viewer selects a certain product on the selection screen, the controller 117 controls the network connection / processing unit 110 to transmit the UAL information to the Internet according to the corresponding protocol, and then flash memory ( The web browser program of 119). Accordingly, when the requested web document is transmitted from the site of the UAL, the network connection / processing unit 110 delivers it to the web browser driven by the controller 117, and the web browser transmits the received web document. By analyzing and converting the video signal of the video or video through the video decoder 112 and the audio decoder 114 and outputting it on the screen, the viewer who requests information about the product during or after the viewing of the Internet broadcast Allows you to identify additional information, such as purchase information for the product.

In all the above-described embodiments, the UAL information on the Internet that the viewer can request and receive specific information about the product is provided together with the product information, but such access information is provided at different times. It may be provided in a separate procedure upon request.

The following embodiment provides the connection information of the UAL through a separate process as described above, and will be described based on the operation of the digital television 100 of FIG. 4.

The digital television 100 stores the product information received together with the broadcast signal in the service information memory 19 so that the viewer can shop after the viewing ends without interruption of the current program viewing. At this time, in order to prevent the product information from being duplicated and stored, the received product code is checked. That is, as described above, the section filter unit 18 compares the currently received product code with the product code of the product information in the service information memory 19 previously received and stored, and does not store the product code if it is already received. If there is no code, the product information having the newly received product code is stored in the service information memory 19.

As product recognition information used for comparative storage of such product information, various information other than a product code may be selected and used. That is, the trade name may be used as the product recognition information for checking the duplicate storage. However, if the product name is used as it is, even though it is a different product, it may not be distinguished, and the name of the place where the product was located or the name of the caster wearing the product may be used together as product identification information.

For example, product recognition information may be used in the form of 'pants (kim amu)', 'pants (bak amu),' computer (cheol's room) '.

In this way, while the product information is stored in the service information memory 19 without the UAL connection information, while the viewer is watching the broadcast program or after the broadcast program is terminated, a specific key, for example, web surfing (Web When the surfing key is input, as in the above-described embodiment, the controller 21 stops decoding the broadcast program and controls the guide information configuration unit 20 to control the service information memory 19. The merchandise information stored up to that point is displayed on the screen of the digital television 100.

When the viewer selects a product in the state in which the product information is output as described above, a site that has already been designated through the network connection unit 24 through the network connection unit 24, the product identification information product code, the product name, or the product information with the parallel information. For example, it transmits to a broadcasting station site which broadcasts a program. Accordingly, the server of the broadcasting station site checks the product recognition information, retrieves the connection address of the site where the additional information on the product can be obtained, and returns the connection information to the network connection unit 24 of the digital television 100 through the Internet. To provide.

Receiving the access information, the control unit 21 transmits the access information back to the Internet through the network connection unit 24 so as to receive necessary information from a site for obtaining additional information such as purchase information for the previously selected product. The received information is output as an image showing information required by the web browser function of the network connection unit 24 and the guide information configuration unit 20.

The broadcasting station site may provide brief information on the requested product, that is, simple additional information such as a picture or price of the product, upon providing the URL information on the requested product. In this case, the control unit 21 displays the additional information on the screen, and when the request for detailed information on the product is performed, using the received access information, the controller 21 may perform the process of acquiring additional information necessary at a desired site. have.

As mentioned above, preferred embodiments of the present invention are disclosed for the purpose of illustration, and those skilled in the art can improve and change various other embodiments within the spirit and technical scope of the present invention disclosed in the appended claims below. , Replacement or addition would be possible.

According to the present invention, the product information provided through the broadcast signal and the method and device for acquiring the product information through the same according to the present invention can more quickly acquire the information on the product in the scene of the broadcast program while watching the broadcast program. Further, without stopping the viewing in the middle, after the end of the viewing can check the goods in the scene of the broadcast program, and can obtain additional information about the product, Internet shopping through the broadcast program is faster and easier.

Claims (6)

A first step of receiving a digital broadcast signal; A second step of separately extracting recognition information on a specific product included in the image of the digital broadcast signal; And Acquiring product information through a broadcast signal comprising a third step of comparing the separated and extracted product information with information about a specific stored product and selectively adding and storing the separated and extracted product information according to the comparison result Way. 2. The method of claim 1, wherein the second step further extracts and extracts access information about a website for obtaining additional information about the product, in addition to the recognition information about the specific product. Way. The method according to claim 1, further comprising a fourth step of displaying the identification information on the stored specific product on the screen for the user's selection. The method of claim 3, further comprising: a fifth step of acquiring access information of a corresponding website for the selected product when an arbitrary product is selected through the identification information of the specific product displayed on the screen. Product information acquisition method through a broadcast signal. The method of claim 4, wherein in the fifth step, access information is obtained from information previously received and stored in the storage means. The method of claim 4, wherein in the fifth step, access information about the selected product is obtained from a specific website.