JP2002024250A - Information providing service method, and information provision supplying device and information provision receiving device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information providing service method which can provide information meeting desires of more viewers. SOLUTION: A digital broadcast sent by multiplex streaming from a television broadcasting station 12 through a broadcasting satellite 10 is received by a transmitter receiver 14 and displayed by a television 15. This digital broadcast is received by an information imparting center 16 as well. The center 16 analyzes the syntax of a document for data broadcasting to extract a noun. Detailed information based upon this noun is retrieved through the Internet, etc., and stored in a program information database 46, and the noun is displayed as a category or keyword on the television 15. A viewer selects the displayed category or keyword and the detailed information corresponding to the selected category or keyword is provided on the screen of the television 15 from the program information database 46.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information providing service method using digital broadcasting.

[0002]

2. Description of the Related Art Currently, CS (Com) using a communication satellite is used.
digital broadcasting has been started, and BS digital broadcasting using a broadcasting satellite will be started in the future. Digital broadcasting can transmit a larger amount of data than conventional analog broadcasting. For this reason, CS broadcasts are multi-channel. On the other hand, BS (Broadcast)
In satellite broadcasting, digital high-definition and data broadcasting services with high image quality and high sound quality will be provided. Currently, EPG (electronic program guide), program-related information, and the like are considered as the data broadcasting service.

[0003]

However, while watching a television program, a viewer of the television program may generate another desire from the phrase used therein. For example, there is a case where a user is watching "handmade udon" in a travel program in the Shikoku region and wants to know information about a udon shop near the place where the user is watching. In this way, the viewer's desire is based on the phrase ("udon" in the above example) used in the TV program, but with the program itself ("the Shikoku region travel program" in the above example). May not be directly related.

[0004] However, information created by a broadcasting station and provided on a screen, such as EPG and program-related information, is directly related to the content of the program being broadcasted (for example, in the above-described example, local information of a local area). Most of them are specialty products and detailed information on the stores that handle the products.) Therefore, it is not possible to sufficiently respond to the needs of each viewer, and it is not possible to sufficiently satisfy the needs of the viewers.

Accordingly, an object of the present invention is to provide an information providing service method capable of providing information according to the needs of more viewers.

[0006]

According to an aspect of the present invention, a category or a keyword is extracted from digital information transmitted by digital broadcasting, and a category or a keyword related to the category or the keyword is extracted. The detailed information is searched for and obtained from information other than the information transmitted by digital broadcasting, and is delivered to display the detailed information on a television screen.

[0007] Therefore, categories or keywords are extracted based on terms used in television programs transmitted in digital broadcasting. The audience ’s desires that occurred during viewing were
Since many are based on words from television programs, it is possible to provide information that satisfies the needs of more viewers than simply providing information transmitted from a broadcasting station.

According to a second aspect of the present invention, in the information providing service method according to the first aspect, the detailed information is distributed in a format displayed on a screen together with the digital information or a digital broadcast television program. Things.

Therefore, detailed information can be obtained without paying attention to the digital information or the TV program, that is, while watching the digital information or the TV program. Therefore, information can be provided so that the viewer simultaneously satisfies the desire to view a television program or the like and the desire to obtain detailed information thereof.

According to a third aspect of the present invention, in the information providing service method according to the first or second aspect, while searching for the detailed information, a category or a keyword is obtained from a digital broadcast received thereafter. Is extracted.

[0011] Therefore, since the category and the keyword can be obtained from the phrase used in the newly received digital broadcast, the category or the keyword corresponding to the phrase that starts the viewer's desire can be appropriately obtained.

According to a fourth aspect of the present invention, there is provided the information providing service method according to any one of the first to third aspects, wherein the category or keyword displayed on the television screen together with the digital information and the television program is provided to the viewer. Information corresponding to the selected category or keyword is the detailed information.

[0013] Therefore, by selecting a category or a keyword extracted from digital information transmitted by digital broadcasting, a viewer can immediately provide information corresponding to the viewer's desire at that time. Therefore, it is possible to provide information according to the individual needs of each viewer.

According to a fifth aspect of the present invention, in the information providing service method according to the fourth aspect, before the viewer selects a category or a keyword, the television program being viewed together with the category or the keyword is selected. Is distributed as detailed information.

[0015] The homepage of a television program contains information on a wider range than the content broadcasted on the television screen, such as the content of the past or scheduled broadcast of the television program. Therefore, detailed information that the viewer wants may be obtained without selecting a category and a keyword, and information that can quickly satisfy the viewer's desire can be provided.

According to a sixth aspect of the present invention, in the information providing service method according to any one of the first to fifth aspects, while the viewer selects the category or the keyword, the detailed information thereof is stored in the storage unit. The information providing service method according to any one of claims 1 to 5, wherein the detailed information is distributed from the storage unit according to the selected category or keyword. is there.

Therefore, when the detailed information is selected, the detailed information which has already been searched and stored in the storage section may be extracted from the storage section, so that the detailed information can be promptly provided to the viewer. Can be. Therefore, detailed information according to the needs of the viewer can be promptly provided.

According to a seventh aspect of the present invention, in the information providing service method according to any one of the fourth to sixth aspects, the detailed information is commercial advertisement information. Therefore, of the detailed information related to the selected keyword or category, only commercial advertisement information of interest to the viewer (this is a so-called narrowly defined advertisement including information of product advertisement) can be displayed. Therefore, it is possible to provide commercial advertisement information according to the viewer.

According to an eighth aspect of the present invention, in the information providing service method according to any one of the first to seventh aspects, the category and the keyword are obtained by parsing a sentence included in the digital information to form a noun. This is what was obtained by extraction. Therefore, since it is a noun extracted from the text included in the digital information, it is related to the TV program,
More specific words that are not abstract can be used as categories and keywords. Therefore, the viewer can easily select a category or a keyword close to the information desired by the viewer, and search for detailed information becomes easier. Therefore, information that meets the needs of the viewer can be easily provided.

According to a ninth aspect of the present invention, in the information providing service method according to any one of the first to eighth aspects, the category and the keyword displayed on the screen are words or phrases specified in advance by a digital broadcast viewer. It is said that it was a match. Therefore, unnecessary information is removed from the enormous amount of information retrieved based on the extracted keywords and categories, and only information corresponding to the preference of the viewer is extracted and displayed. Information can be provided more quickly.

The invention according to claim 10 is the invention according to claims 1 to 9
The detailed information is displayed in a predetermined display width so as to be scrollable up and down. Therefore, there is no need to scroll left and right, and the screen displaying the detailed information can be viewed simply by scrolling up and down, and the information can be provided on an easy-to-view screen.

According to the eleventh aspect of the present invention, there are provided the first to the first aspects.
0, the category, the keyword, or the detailed information is displayed on the television screen while being automatically scrolled. Therefore, by scrolling, new categories, keywords or detailed information can be added little by little. The category, keyword, or detailed information is displayed for a predetermined time, but the display end time can be easily predicted.
The viewer can more reliably select the keyword or detailed information, and can provide information more suited to the viewer's desire.

The twelfth aspect of the present invention relates to the first to first aspects.
2. The information providing service method according to claim 1, wherein the category and the keyword are displayed on a television screen while a television program is being broadcast. Therefore, when the viewer does not need detailed information, he or she can view only digital information or a television program on a large screen.

According to a thirteenth aspect of the present invention, there is provided an extracting unit for extracting a category or a keyword from digital information transmitted by digital broadcasting, a searching unit for searching for detailed information related to the extracted category or the keyword, A conversion unit for converting the detailed information retrieved by the retrieval unit to be displayed on a television. Therefore, it is possible to easily provide information satisfying more viewers together with digital broadcasting.

[0025] According to a fourteenth aspect of the present invention, the first receiving section for receiving a digital broadcast, the second receiving section for receiving information data supplied via a communication network, and the first receiving section. An information providing receiving device comprising at least an exchange unit for exchanging a part of the received digital broadcast data with the received data received by the second receiving unit. Therefore, it is possible to easily receive and display information satisfying more viewers together with the digital broadcast.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of an information providing service method embodying the present invention will be described below with reference to FIGS. 1 to 12. First, a system for performing the information providing service method will be described.

(Overall Configuration) As shown in FIG. 1, a television broadcast is transmitted from a transmitting antenna 11 of one or a plurality of television broadcasting stations 12 to a broadcasting satellite 10. The television broadcast station 12 is connected to the Internet 19 and has established a homepage for television programs.

A broadcasting satellite 1 is located outside a house or apartment house.
0, a parabolic antenna 13 is attached to the transmitter / receiver 14 in the room.
(Corresponding to an information provision receiving device), and
Is provided with a television 15 for displaying video and a mouse 15a for inputting a viewer's instruction.

An information providing center 16 (corresponding to an information providing / supplying device) is provided on the ground, and a parabolic antenna 17 pointing to the broadcasting satellite 10 is attached to the information providing center 16 as well. . The information providing center 16 can communicate with the transceiver 14 via a known communication network 18 such as a telephone line. Further, the information providing center 16 is connected to the Internet 19,
The homepage of the television broadcasting station 12 and other homepages can be accessed.

(Transceiver 14) The transceiver 14 shown in FIG. 2 includes a receiving unit and a transmitting unit. The transmission unit includes an operation input unit 33 that receives data from an input device such as the mouse 15a, and a data transmission unit 27. The data transmission unit 27 includes an operation input unit 33
Is input and decoded, and transmitted to the information providing center 16 via the communication network 18.

The receiving section includes a satellite broadcasting receiving section 21 as a first receiving section, a data receiving section 23 as a second receiving section, a stream dividing / combining section 24 as an exchange section, and a reception screen switching section 25. , An output unit 32 and the like. The satellite broadcast receiving unit 21 receives digital broadcast data transmitted from the television broadcast station 12 via the parabolic antenna 13. This digital broadcast data is a state where video data with audio, EPG data and digital information data are divided and multiplexed on a time axis called a transport stream as shown in FIG. 4 (hereinafter referred to as a multiplexed stream). Sent. The data receiving unit 23 receives data from the information providing center 16 via the communication network 18. The stream division / synthesis unit 24 converts the digital information data in the digital broadcast data received by the satellite broadcast
The data is exchanged with the data of the detailed information received by the data receiving unit 23, and combined with the EPG and the video with sound to synthesize the multiplexed stream. The reception screen switching unit 25 includes the satellite broadcast reception unit 2
1 and the multiplexed stream generated by the stream division / combination unit 24.
The output unit 32 displays data transmitted from the reception screen switching unit 25, such as EPG and audio-attached video, on the television 15 via a BML browser.

(Information providing center 16) Information providing center 1
6, a personal information management unit 35, a data generation unit 40, and a program information management unit 50 as a search unit as shown in FIG.
And a data transmission unit 48. The data transmission unit 48 encodes and decodes data generated by a transmission data generation unit 44 described later or broadcast data from the satellite broadcast reception unit 41, and transmits the data to the transceiver 14 via the communication network 18.

The personal information management unit 35 includes a data receiving unit 39
And a personal information database 38 and a command unit 37. The data receiving unit 39 receives the data transmitted from the transceiver 14 via the communication network 18, and thereby displays a command signal for displaying the information document generated by the information providing center 16 on the screen of the television 15 or a personal signal. A command signal for extracting information is transmitted to the command unit 37. The command unit 37 stores items related to the personal information transmitted from the personal information management unit 35 in the personal information database 38, and reads the personal information such as a display format from the personal information database 38. In the personal information database 38,
For example, information set by the viewer, such as a display format defining keywords, categories, and arrangement of detailed information to be displayed on the screen of the television 15 and keywords and categories, is stored.

The data generation unit 40 includes the parabolic antenna 1
7 is composed of a satellite broadcast receiving section 41, a syntax analyzing section 42 and a designated word extracting section 43 which are extracting sections, and a transmission data generating section 44 which is a converting section. The satellite broadcast receiving unit 41 extracts the data broadcast document and the EPG document from the multiplexed stream received via the parabolic antenna 17 and supplies them to the syntax analysis unit 42 and the program information management unit 50, respectively. Also, this satellite broadcast receiving unit 41
Is bypassed by the data transmission unit 48, and when a problem occurs in information data to be created by the transmission data generation unit 44 described later, the data received by the satellite broadcast reception unit 41 is transmitted to the data transmission unit 48. Supply.

The parsing unit 42 extracts a sentence displayed on the screen from the data broadcast document, parses the sentence,
The words and phrases included in this are extracted. Designated phrase extraction unit 4
Reference numeral 3 denotes a phrase stored in the personal information database 38 (that is, a phrase of interest to the viewer) and a parsing unit 4
By comparing the phrase extracted in step 2 with the phrase extracted by the syntax analysis unit 42, a phrase that is of interest to the viewer is selected as a specified phrase. In addition, the transmission data generation unit 44 includes a specified word from the specified word extraction unit 43 and a detailed information search unit 47 described later.
Then, data information to be displayed on the screen is generated based on the detailed information from the display unit and the information on the display format from the command unit 37.

The program information management unit 50 includes a program information registration unit 45 and a program information database 46 serving as a storage unit.
And the detailed information search unit 47. Based on the EPG document received from the satellite broadcast receiving unit 41 and the designated phrase selected by the designated phrase extracting unit 43, the program information registration unit 45 transmits specific information (eg, commentary on the phrase) from the Internet 19 or the like. And its address information) are extracted and stored in the program information database 46. The detailed information search unit 47 reads out detailed information (in the above example, information on the address, etc.) stored in the program information database 46. The program information database 46 stores not only information on a designated phrase obtained through the Internet 19 (information obtained by accessing an address) but also information on the designated phrase, for example, by manually inputting information on the region. Is stored.

Next, an information providing service method of the present invention using the above-described system will be described with reference to FIGS. (Initial setting) Before viewing a television broadcast, while watching a television screen as shown in FIG. 5A, the category, keyword, and display format of the viewer's preference (the location of what information to arrange). Format), the mouse 15 of the TV 15
The selection is made by the viewer according to the operation of a (step S10 in FIG. 6).

For example, a video image of a television program is displayed at the upper right display position P, a data broadcast display position D is displayed at the lower right, a keyword and category display position K is displayed at the upper left, and a detailed information display position I is displayed at the lower left. When it is desired to select the display format (number 1) to be displayed, the cursor 51 is positioned at this "number 1" as shown in FIG. 5A, and the selection is made by pressing the enter button of the mouse 15a.

Next, as shown in FIG. 5B, the viewer selects a category and a keyword by operating the mouse 15a of the television 15. For example, when it is desired to select the shopping and gourmet categories, the cursor 51 is moved to the position A and the enter button is pressed. Then, the cursor 51 moves to the category number. Then, the cursor 51 is moved to the shopping number (21) and the enter button is pressed, and the cursor 51 is moved to the gourmet number (39).
And press the ENTER button. When the cursor 51 is moved to the end position and determined, the cursor 51
And then enter a state of inputting a keyword.

With the cursor 51 moved to B,
For example, when the enter button is pressed, “a input” and “b end”
Can be selected. Then, "a input" is selected by the enter button, a table of the Japanese syllabary is displayed, the cursor 51 is moved up, down, left and right, and the enter button is pressed, thereby inputting a keyword one by one. When the keyword input is completed, the cursor 51 is positioned at “b end”, and the enter button is pressed to end. Then, since the cursor 51 moves to “C end”, the determination button is pressed here to end. If there are various interests and the viewer does not want to limit the range of the category or the keyword, the item of “A category” or “B keyword” is skipped and only the display format of the screen is set.

The display format, category, and keyword thus selected or set are sent to the personal information managing unit 35 of the information providing center 16 via the transceiver 14 and the communication network 18 (step S11). Personal Information Management Department 3
At 5, the transmitted information (the display format of No. 1 in FIG. 5 (a), information on categories and keywords related to shopping and gourmet) is stored in the personal information database 38 (step S12).

(Collecting of program information of the information adding center 16)
The BS digital broadcast transmitted from the television broadcast station 12 via the broadcast satellite 10 is a multiplexed stream of audio-attached video, EPG, and data information. The information providing center 16 receives the multiplexed BS broadcast by the satellite broadcast receiving unit 21 via the parabolic antenna 13 (step S20 in FIG. 8). Then, the satellite broadcast receiving unit 21
First, the multiplexed stream is separated, and the data of the video with audio, the data of the EPG document, and the data of the data broadcast document are separated (step 21). Next, the program information management unit 50
(Step S2).
2).

The program information registration unit 45 extracts predetermined items such as a program name, a broadcast time, and a guest name from the data of the EPG document (step S23). For example, the program name of “Nihon Teriyaki Cooking Show” is “July 30 from 16:00 to 16
Half hour ", and if a guest named" **** "is to appear on it,
The items “July 30 from 16 o'clock to 16:30” and “****” are extracted. In addition, the homepage address of this program “http: www.ntv.co.jp/Nihon Terikido's Cooking Show /” is searched by the search engine of the Internet 19. These extracted predetermined items are indexed, and the program information database 4
6 (step S24).

Thereafter, the collection of the program information described above is repeated. (Display of Category and Keyword) For example, when the digital broadcast transmitted from the television broadcast station 12 is to be viewed as it is, the satellite digital broadcast receiving section 21 receives the BS digital broadcast via the parabolic antenna 13 (see FIG. 9). This is supplied to the television 15 via the reception screen switching unit 25 (Step S30). For example, as shown in FIG. 7, a data broadcast of a weather forecast is displayed at a display position W, and a television program is displayed at a display position P.
At the same time, it is displayed on the television 15 (step S3
1) Assume that the viewer is watching.

When the viewer desires detailed information related to the television program while watching the television program, the mouse 15a
Is transmitted to the transceiver 14 to display detailed information on the program being viewed (step S32). The command data is supplied to the command unit 37 of the information providing center 16 via the transceiver 14 and the communication network 18. Then, based on the command data, the command unit 37
Extracts the categories, keywords, display formats, and the like set as described above from the personal information database 38 (step S33). The extracted category and keyword are supplied to the designated phrase extraction unit 43, and the display format is supplied to the transmission data generation unit 44.

In the information providing center 16, the BS digital broadcast is transmitted from the satellite broadcast receiving section 41 via the parabolic antenna 17.
(Step S35), the multiplexed stream is separated (step S36), and a data broadcast document is selected (step S37). The syntax analysis section 42 performs syntax analysis on the sentence in the data broadcast document (step S37). For example, if the data broadcast document contains the sentence “Today we will add eggs to Potov”, “Today”, “Ha”, “Potov”, “To”, “Eggs”, “A”, and “Attach” Decompose for each part of speech, such as "masu". Next, only nouns are extracted from here (step S38). In the above example, the nouns “today”, “potov”, and “egg” are extracted.
Next, in accordance with the supply signal from the command unit 37, of the nouns extracted here (“today”, “Potov”, and “egg”), the designated words or individuals included in the category registered in the personal information database 38. A designated word that matches the keyword registered in the information database 38 is selected (step S39). For example, since the category of “gourmet” is registered as described above, “Potov” and “egg” are selected. The specified phrase is supplied to the transmission data generation unit 44 and the detailed information search unit 47.

The detailed information search section 47 accesses the Internet 19 and uses a search engine or the like to search for a URL (Uniform Resource) related to the specified phrase.
Locators) (step S41).
Then, in the search list of the searched URLs, designated nouns are indexed and stored in the program information database 46 (step S42). For example, the URL related to “Potov” is “http: //www.nic.
epotofu. ne. jp "etc., and" egg "
As a URL related to “http://www.to.
daytamago. ne. jp "" http: // w
ww. Tokubaiegg. co. If "jp" or the like is retrieved, these are stored in the program information database 46.

The transmission data generator 44 matches the display format extracted from the personal information database 38 with the contents of the homepage of the program being viewed, the contents of the data broadcast document transmitted from the television broadcasting station 12, and the category. Alternatively, a BML (Broadcast Marku) can be displayed in such a manner that the keyword and the above-mentioned designated phrase can be combined and displayed.
An information document of (p Language) is generated (step S44). The generated information document is supplied from the data transmission unit 48 to the transceiver 14 via the communication network 18.

In the transceiver 14, the data receiving unit 23 receives the information document and receives the BS digital broadcast transmitted in the multiplexed stream. The stream dividing / synthesizing unit 24 of the transceiver 14 exchanges the data broadcast document in the received multiplexed stream with the information document transmitted through the communication network 18 to generate a new multiplexed stream. (Step S45). The new multiplexed stream is supplied to the television 15 by switching of the reception screen switching unit 25, and is displayed on the screen of the television 15.
Then, as shown in FIG. 10, the video of the television program is displayed at the display position P of the screen of the television 15, the category and the keyword are displayed at the display position K, and the homepage information of the television program being viewed is displayed at the display position I. Is displayed, and the data information is displayed at the display position D (step S46). The categories and keywords ("Potov" and "Eggs") displayed at this time are scrolled to the left, and the homepage information of the TV program being viewed is
It is displayed so that it can be manually scrolled up and down with the mouse 15a.

(Display of Detailed Information) Next, the “egg” of the specified words “potof” or “egg” displayed on the television screen
Is instructed by the viewer via the mouse 15a (step S50 in FIG. 11). Then, the keyword “egg” selected by the viewer is supplied to the command unit 37 of the information providing center 16 via the transceiver 14 and the communication network 18. The command unit 37 stores information that the selected word is “egg” in the personal information database 38 (step S51) and supplies the information to the detailed information search unit 47. In the detailed information search unit 47, a URL related to the selected word “egg” (for example, “http:
// www. todaytamago. ne. jp "
“Http: //www.tokubaiegg.c
o. jp ”) is extracted from the program information database 46 (step S5).
2). Then, a display format is extracted from the personal information database 38 (step S53).
The extracted search list, the keywords and categories obtained from the digital broadcast document (the document received after the above-described “Potov” and “egg” documents), and the digital broadcast document that has just been received are combined. It is created in BML format as an information document (step S54). Then, the created information document is supplied to the transceiver 14 via the communication network 18.

In the transceiver 14, the data document is received by the data receiving unit 23, and the BS digital broadcast transmitted in the multiplexed stream is received (step S5).
5). The stream division / synthesis unit 24 of the transceiver 14 exchanges the data broadcast document in the received multiplexed stream with the information document transmitted via the communication network 18 to obtain a multiplexed stream ( Step S5
6). Then, the multiplexed stream is supplied to the television 15, and the digital broadcast, the EPG and the information document included in the multiplexed stream are displayed on the screen of the television 15 (step S58).

The screen of the television 15 is, for example, a screen as shown in FIG. That is, the video with sound that the viewer is watching is displayed at the display position P as a television program, and the data broadcast transmitted from the television broadcasting station 12 together with the television program is located below the display position P of the television program. It is displayed at the display position D. The category and the keyword are displayed at a display position K at the upper left of the TV screen,
The search list is displayed at the display position I of the detailed information below the category and the keyword, and can be scrolled up and down by moving the mouse 15a. The categories and keywords displayed on the screen are
It is always scrolled to the left. The data broadcast transmitted from the television broadcasting station 12 may include commercial advertisement information of a television program sponsor.

Next, in the URL search list displayed on the television 15, for example, the viewer operates the mouse 15a to select the item "sale egg" (step S6).
0). This information is supplied to the detailed information search unit 47 via the transceiver 14, and a URL corresponding to the "sale egg", for example, "http://www.to"
kubayegg. co. jp ", access this and download the document of this URL (step S
61).

Then, the display format is extracted again from the personal information database 38 (step S62), and in accordance with this format, the contents of the URL detailed information and the digital broadcasting The contents of the document and the keywords and categories obtained from the digital broadcast document are created in the BML format as information documents (step S63). Then, the created information document is supplied to the transceiver 14 via the communication network 18, and the received digital broadcast digital data and the transmitted digital data are transmitted via the communication network 18 in the same manner as in step S 56 described above. The data is replaced with the information document data to form a multiplexed stream (step S64). This multiplexed stream is supplied to the television 15, and the detailed information (in the above-described example, information of “sale egg”) is displayed at the display position I as shown in FIG. This detailed information is commercial advertisement information, and the mouse 15
"a" is displayed so as to be scrollable in the vertical direction.
At this time, the video of the television program continues to be displayed at the display position P of the screen of the television 15, the category and the keyword continue to be displayed while being scrolled at the display position K, and the data information continues to be displayed at the display position D ( Step S6
5).

Here, for example, when the user wants to purchase “Eggs of 98 yen per 10 L-size supermarkets” displayed on the screen of the television 15, the “Purchase” displayed on the screen is displayed. By clicking, the egg can be purchased by the viewer.

Thereafter, when the broadcasting of the television program is completed, the information in the program information database 46 is deleted. According to the information providing service of the above embodiment, the following effects can be obtained.

(A) A category or a keyword is extracted from digital information transmitted by digital broadcasting, detailed information related to the category or the keyword is searched, and the detailed information is distributed to be displayed on a television screen. I do. As a result, detailed information can be extracted based on phrases transmitted in digital broadcasting and used in television programs, so that more viewers desire than simply providing program-related information provided by a broadcasting station. Information service that satisfies the requirements.

(B) As shown in FIGS. 10 and 12, the detailed information is displayed on a screen together with digital information or a digital broadcast television program, and the homepage of the television program being viewed and Distribute detailed information according to category or keyword. Therefore, the detailed information and the like and the television program can be viewed on the same screen, so that the detailed information can be obtained without keeping an eye on the television program and the like. Therefore, the viewer can simultaneously satisfy the desire to watch a television program or the like and the desire to obtain detailed information thereof.

(C) While searching for detailed information, a category or keyword is extracted from the digital broadcast received next. Therefore, a category and a keyword can be sequentially obtained from a phrase used in digital broadcasting, and a category or a keyword corresponding to a phrase that starts a viewer's desire can be appropriately obtained.

(D) The category or keyword displayed on the television screen together with the digital information and the television program is selected by the viewer of the digital broadcast, and information corresponding to the selected category or keyword is distributed so as to be displayed on the screen. I do. Therefore, when the viewer selects a category or keyword extracted from the digital information transmitted by digital broadcasting, information corresponding to the viewer's desire can be provided immediately. Therefore, information according to each viewer's desire can be quickly provided.

(E) Before the viewer selects a category and a keyword, detailed information extracted from the homepage of the television program is displayed together with the category and the keyword. Therefore, since a wide range of information related to the television program is included, detailed information that the viewer wants may be obtained without selecting a category and a keyword.

(F) While the category or keyword is being selected by the viewer, the detailed information is stored in the personal information database 38, and the detailed information is stored in the personal information database 38 according to the selected category or keyword. To deliver. Therefore, when the detailed information is selected, the detailed information which has already been searched and stored in the storage unit may be extracted from the storage unit, so that the detailed information can be promptly provided to the viewer. Therefore, detailed information according to the needs of the viewer can be promptly provided.

(G) Since the commercial information is included in the detailed information corresponding to the category or keyword of interest to the viewer, commercial information according to the interest of each viewer can be provided.

(H) The categories and keywords are obtained by parsing a sentence included in the digital information and extracting nouns. Therefore, unnecessary information is removed from the enormous amount of information searched based on the extracted keywords and categories, and only information corresponding to the viewer's preference is extracted and displayed. Information can be provided more quickly.

(I) Of the categories and keywords extracted from the digital information, only the words corresponding to the categories and keywords specified in advance by the viewer of the digital broadcast are displayed on the screen. Therefore, unnecessary information is removed from the enormous amount of information retrieved based on the extracted keywords and categories, and only information corresponding to the preference of the viewer is extracted and displayed. Information can be provided more quickly.

(J) Since the detailed information is just adapted to the width of the display position I for displaying the detailed information,
You can see the screen without scrolling left and right. Therefore, a large amount of detailed information can be provided to the viewer in a state that is easy for the viewer to see.

(K) The category, keyword or detailed information is displayed on the television screen while being automatically scrolled. Therefore, by scrolling, new categories, keywords or detailed information can be added little by little. The category, keyword, or detailed information is displayed for a predetermined time, but the display end time can be easily predicted, so that the viewer can more reliably select the category, keyword, or detailed information.

(L) The categories and keywords are displayed on the television screen during the broadcast of the television program according to the instructions of the viewer. If the viewer does not want detailed information, the digital information is displayed. Alternatively, only a television program can be viewed on a large screen.

(N) Since the category and the keyword selected by the viewer are stored in the personal information database 38, the category and the keyword according to the preference of the viewer can be grasped, and the category and the keyword corresponding to the viewer's desire can be grasped. Information can be provided.

(M) When the detailed information is commercial advertisement information, after displaying the detailed information, the user can purchase the product “egg” on the display screen of the detailed information. Even if the user is watching a TV program, the user can immediately purchase necessary products.

(Modification) The above embodiment may be modified as follows. In the above embodiment, in the information adding center 16,
Although the category or the keyword is extracted from the digital information transmitted by the digital broadcast, the category or the keyword may be supplied to the information providing center 16 by performing the extraction by the transceiver 14. That is, the information addition center 16 may have only a function of managing detailed information according to the category or the keyword.

In the above-described embodiment, a screen as shown in FIG. 5 is displayed to allow the viewer to input a category, a keyword, and a display position. Of course, a screen other than the screen shown in FIG. You may make it select. For example, a display screen such as a television program screen and a detailed information screen may be moved up and down and left and right to make the position variable, and the size thereof may also be made variable.

In the above embodiment, the category and the keyword are scrolled in the horizontal direction. However, the category and the keyword may be scrolled in the vertical direction or may be displayed for a fixed time.

In the above embodiment, the detailed information is manually sucrose up and down. However, the sucrose may be automatically performed. In the above embodiment, the viewer first selects the category or keyword of his / her interest and their display position. However, the category, keyword and their display position are set in advance, If desired, these categories, keywords and display positions may be changed.

In the above-described embodiment, the category, the keyword, or the detailed information is displayed on the TV screen displaying data information such as weather and the TV program together. However, only the TV program or the EPG is displayed on the TV screen. The category, keyword, or detailed information may be displayed from the state.

In the above embodiment, the category and the detailed information can be displayed on the television screen during the broadcast of the television program according to the instruction of the viewer. However, the category, the keyword and the detailed information are always displayed on the television program or the like. May be displayed together with the display.

In the above embodiment, the description has been made assuming that the television 15 is provided in the transceiver 14.
And the television 15, the transceiver 14 may be built in the television 15, or may be provided as an option in the BS tuner.

In the above embodiment, the display format of the digital information, the television program, the category, the keyword, and the detailed information is set in advance by the viewer as an initial setting. In addition, the setting may be changed according to the viewer's preference during the broadcast. In this case, the viewer can arrange the category, the keyword, and the detailed information at a position easy for the viewer to see, so that the category or the keyword related to the required detailed information can be more easily selected.

In the above embodiment, the categories and keywords that match the viewer's preferences are registered in the personal information database 38. However, the categories and keywords that do not match the viewer's preferences are registered in the personal information database 38. May not be the designated phrase.

In the above embodiment, the viewer's instruction is given by the mouse 15a and this signal is supplied to the operation input unit 33 of the transceiver 14, but it may be supplied to the operation input unit 33 by a remote controller or a joystick. It may be performed by voice input.

In the above embodiment, the keyword is extracted from the data broadcast document. However, the category or the keyword may be extracted from the sentence included in the video or audio of the digital broadcast. Good.

In the above embodiment, only keywords were extracted from the data broadcast document. However, a category may be derived from the data broadcast document, or a category may be derived from the extracted keywords.

In the above embodiment, the URL search list is displayed after the viewer selects a category or keyword, but various detailed information is immediately displayed without displaying the search list. You may do so.

In the above embodiment, the detailed information of the television program stored in the program information database 46 is deleted after the broadcasting of the television program ends. However,
After the end of the television program, the detailed information related thereto may be temporarily stored. In this case, after a while, when the detailed information at that time becomes necessary, the information can be obtained. In addition, a command from the viewer to save detailed information (for example, to save the ingredients and preparation procedure in a cooking program) is sent to the information adding center 16.
The detailed information may be stored only when is received.

In the above embodiment, the detailed information mainly obtained from the Internet is provided. However, the information stored in the information providing center 16 by manual input, such as information limited to the area, may be provided. It may be.

In the above embodiment, the communication network 18 for transmitting and receiving between the transmitter / receiver 14 and the information providing center 16 has been described as a telephone line. Alternatively, a cable network such as a cable television or satellite communication may be used as the communication network 18. Is also good.

In the above-described embodiment, the digital broadcast transmitted via the broadcast satellite 10 has been described. However, the present invention is also applicable to digital broadcast based on terrestrial waves transmitted via a television tower or the like, digital broadcast on a cable television, or the like. can do.

Next, technical ideas other than those described in the claims which can be understood from the above embodiment and other examples will be described below together with their effects. (1) Information extracting a category or a keyword from digital information transmitted by digital broadcasting, searching for detailed information related to the category or the keyword, and displaying the detailed information on a television screen. Providing device.

Therefore, according to the invention described in (1), it is possible to provide the receiver side with the function of the above-mentioned information addition center, and to obtain the same effect as that of distribution from the information addition center.

(2) The information providing service method according to any one of claims 1 to 3, wherein only commercial advertisement information that matches a category or a keyword selected by the viewer in advance is displayed on the television screen.

Therefore, according to the invention described in (2), only the commercial advertisement information that the viewer is interested in is displayed, so that the commercial advertisement information that meets the viewer's desire can be easily provided. .

(3) A category or keyword is extracted from digital information transmitted by digital broadcasting, and detailed information related to this category or keyword is retrieved and obtained from information other than information transmitted by digital broadcasting. Before or after, including commercial advertising information in the detailed information related to the category or keyword selected by the viewer,
A service providing method, wherein a product is purchased on a television screen in the commercial advertisement information.

Therefore, according to the invention described in the item (3), not only the detailed information but also what the viewer needs immediately can be purchased on the spot while watching the television program.

[0094]

As described above in detail, according to the information providing service method of the present invention, more information is provided to the viewers than the information unilaterally provided to the viewers by digital broadcasting. Information can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an overall configuration of a system in which an information providing service method according to an embodiment of the present invention is used.

FIG. 2 is a schematic diagram illustrating a configuration of a receiver according to an embodiment.

FIG. 3 is a schematic diagram showing a configuration of an information providing center according to the embodiment.

FIG. 4 is an explanatory diagram illustrating a multiplexed stream.

FIG. 5 is a television screen showing an example when performing initial setting.

FIG. 6 is a flowchart showing a procedure of initial setting.

FIG. 7 is a television screen displaying only data broadcasting and television programs.

FIG. 8 is a flowchart showing a procedure for collecting program information.

FIG. 9 is a flowchart showing a procedure for displaying categories and keywords.

FIG. 10 is a television screen displaying a category, a keyword, and a homepage together with a television program and a data broadcast.

FIG. 11 is a flowchart showing a procedure for displaying detailed information.

FIG. 12 is a television screen displaying a category, a keyword, and detailed information together with a television program and a data broadcast.

FIG. 13 is a television screen when purchasing a product on detailed information.

[Explanation of symbols]

14 ... Transceiver as information providing receiving device, 15 ... TV, 16 ... Information providing center as information providing and supplying device, 1
8: communication network, 21: satellite broadcast receiving unit which is the first receiving unit,
23: a data receiving unit as a second receiving unit; 24, a stream dividing / synthesizing unit as an exchange unit; 38, a personal information database as a storage unit; 42, a parsing unit as an extracting unit;
43: a designated phrase extracting unit 43, 44 as an extracting unit; a transmission data generating unit as a converting unit; 50, a program information managing unit as a searching unit.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) G06F 15/00 310 G06F 15/00 310A H04N 7/08 H04N 7/173 640A 7/081 7/08 Z 7 / 173 640 F term (reference) 5B075 NK31 PP13 PP22 PQ02 PQ05 PQ46 PQ66 UU34 5B085 BE07 5C063 AB03 AB07 AC01 AC05 AC10 CA23 CA36 EA01 EB33 EB37 EB38 5C064 BA01 BB07 BC07 BC18 BC20 BD02 BD07 BD08 BD14

Claims (14)

[Claims] 1. A category or keyword is extracted from digital information transmitted by digital broadcasting, and detailed information related to the category or keyword is retrieved and obtained from information other than information transmitted by digital broadcasting. An information providing service method comprising: distributing detailed information to be displayed on a television screen. 2. The information providing service method according to claim 1, wherein the detailed information is distributed in a format displayed on a screen together with the digital information or a digital broadcast television program. 3. The information providing service method according to claim 1, wherein a category or a keyword is extracted from a digital broadcast received after the detailed information is searched. 4. The detailed information is information corresponding to a category or keyword selected by a viewer among the categories or keywords displayed on the television screen together with the digital information and the television program. The information providing service method according to any one of the above. 5. Before a viewer selects a category or keyword, together with these categories or keywords,
5. The information providing service method according to claim 4, wherein information such as a homepage of a television program being viewed is distributed as detailed information. 6. A method for storing detailed information in a storage unit while a viewer selects the category or keyword, and distributing the detailed information from the storage unit according to the selected category or keyword. The information providing service method according to claim 4 or 5, wherein 7. The information providing service method according to claim 4, wherein the detailed information is commercial advertisement information. 8. The information providing service method according to claim 1, wherein the category and the keyword are obtained by parsing a sentence included in the digital information and extracting a noun. 9. The information providing service method according to claim 1, wherein the category and the keyword displayed on the screen are adapted to a phrase specified in advance by a viewer of the digital broadcast. 10. The detailed information is displayed so as to be scrollable up and down in a predetermined display width.
9. The information providing service method according to any one of 9. 11. The information providing service method according to claim 1, wherein said category, keyword, or detailed information is displayed on said television screen while being automatically scrolled. 12. The information providing service method according to claim 1, wherein the category and the keyword are displayed on a television screen while a television program is being broadcast. 13. An extraction unit for extracting a category or a keyword from digital information transmitted by digital broadcasting, a search unit for searching for detailed information related to the extracted category or keyword, and a search unit for searching for detailed information related to the extracted category or keyword. An information providing / supplying device comprising at least a conversion unit for converting detailed information to be displayed on a television. 14. A first receiving unit for receiving a digital broadcast, and a second receiving unit for receiving information data supplied via a communication network.
An information providing transmission / reception comprising at least a receiving unit, and an exchange unit for exchanging a part of the digital broadcast data received by the first receiving unit with the received data received by the second receiving unit. apparatus.