JP2004312627A - Television receiving apparatus and its program information search method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve weaknesses in a conventional method while keeping convenience in the conventional method, and to provide a program search function simple and easy to be used even in a terrestrial digital broadcast enabled television with no keyword information. <P>SOLUTION: A dictionary wherein proper nouns are stored is packaged in advance and matched with viewer's selected programs, and a matched word is presented to the viewer as a keyword. Besides the keyword information of an EPG system for sending keyword information is compared with the program information of the viewer's selected program, and a matched keyword is presented to the viewer so as to present keywords corresponding to popularity or seasons. The presented keyword is selected to search and present to the viewer a program containing a character string of the selected keyword in its program information, thereby solving a trouble that the search function is not sufficiently satisfactory for the viewer conventionally since a character string which cannot be recognized as a word is extracted by extracting the keyword by a simple algorithm divided in the boundary of KANJI, Kana, square forms of KANA, numerals or alphabets or that a character string which cannot be regarded as a keyword is extracted occasionally even when it is recognized as a word. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a television receiver equipped with an EPG (Electronic Program Guide) function and a program information search method therefor.
[0002]
[Prior art]
In a television receiver having an EPG function of an EPG system that does not transmit keyword information, a function of searching for a program desired by a viewer is to extract a keyword from program information of a program selected by the viewer and to search for a related program. There was a search function. This function can be realized based on the method described in Patent Document 1. Actually, in order to broaden the search range, in the keyword extraction method, the kanji / Hiragana / Katakana / numerical / alphabet boundary is determined from the program title of the program selected by the viewer (viewer selected program) and the detailed information of the program. A simple algorithm based on separating by is used. A keyword is extracted by this algorithm and presented to a viewer, and the viewer selects a keyword. Television receivers that perform searches using such keywords have been commercialized. This function does not search for programs from fixed keywords, but uses recent keywords extracted from the program information of the program selected by the viewer based on the program information, so timely and flexible search Can be.
[0003]
Hereinafter, a method for searching for program information in a conventional terrestrial digital broadcasting compatible television will be described with reference to FIGS.
[0004]
As shown in FIG. 18, the terrestrial digital broadcast-compatible television has a terrestrial digital tuner 20 for receiving video / audio signals of terrestrial digital broadcast, a terrestrial digital program information data acquisition unit 21 for acquiring terrestrial digital program information data, and A terrestrial digital program information data storage device 22 for storing program information data, a video / audio input switching unit 18 for switching video / audio from a terrestrial digital tuner 20 and an external device, a speaker 19 for outputting audio, A video signal processing unit 16 for processing a signal, a television control unit 13 for controlling a television receiver, a remote control code decoding unit 11 for decoding a transmission code from a remote control, and an input from the remote control code decoding unit 11 An event management unit 12 that determines an event that has occurred and issues an instruction to the television control unit 13; An on-screen display processing unit 14 for performing on-screen display in accordance with an instruction from the video control unit 13, a time management unit 15 for performing time management, a display device 17 for displaying video and on-screen, and an on-screen display processing unit 14. It comprises a signal to be output and a video synthesis processing unit 23 for synthesizing video.
[0005]
The terrestrial digital program information can be obtained from SI (Service Information) information, which is terrestrial digital program arrangement information. In order to display or search for an EPG, a terrestrial digital program information data storage device is required. 22 stores information as shown in FIG. 19 for each program. The contents are stored again each time the data is updated.
[0006]
When searching for a program, the TV control unit 13 in FIG. 18 reads data for a viewer-selected program from information in the format of FIG. 19, extracts a keyword by the keyword extraction method shown in FIG. 20, and presents it to the viewer. I do. The viewer selects the presented keyword, and searches for a program including the selected keyword from the program titles and program contents of the program information of all programs stored in the format shown in FIG. A program search is realized by presenting a search result to the viewer. The detailed flow of the program search performed by the television control unit 13 is as shown in the flowchart of FIG.
[0007]
First, in STEP 1, for an event resulting from the reception and decoding of the remote control code by the remote control code decoding unit 11, the event management unit 12 determines whether the event is an event for presenting program contents and at the same time specifies a program for presenting program contents. I do. If the event is not a program content presentation event, the process ends.
[0008]
If the event is a program content presentation event, the process proceeds to STEP 2 and the program information of the program specified by the event management unit 12 is read from the terrestrial digital program information data storage device 22.
[0009]
Next, in STEP 3, the data read from the terrestrial digital program information data storage storage device 22 is notified to the on-screen display processing unit 14 and displayed on the screen.
[0010]
Next, in STEP 4, it is determined whether the event management unit 12 has received a keyword search event through the remote control code decoding unit 11. If the event is not a keyword search event, the process ends.
[0011]
In the case of a keyword search event, the process proceeds to STEP 5 where keywords are extracted from the program title and program contents read from the terrestrial digital program information data storage storage device 22 by the keyword extraction method shown in FIG.
[0012]
Next, in STEP 6, the extracted keywords are listed, notified to the on-screen display processing unit 14, and displayed on the screen.
[0013]
Next, in STEP 7, it is determined whether or not the event management unit 12 has received a keyword selection event through the remote control code decoding unit 11. If the event is not a keyword selection event, the process ends.
[0014]
If the event is a keyword selection event, the process proceeds to STEP 8 to compare the program title and program content of the program information stored in the terrestrial digital program information data storage 22 with the selected keyword, and Search for programs that contain a character string.
[0015]
Next, in STEP 9, a list of programs extracted by the search is notified to the on-screen display processing unit 14 and displayed on the screen.
[0016]
FIG. 22 shows a transition example of screen display when a search is executed.
[0017]
In this way, the program can be searched by the conventional method.
[0018]
[Patent Document 1]
JP-A-2000-295538 (pages 9-11, FIG. 1-7)
[0019]
[Problems to be solved by the invention]
However, the above-described keyword extraction of the conventional television receiver uses a simple algorithm that extracts a character string by separating it at the boundaries of Kanji / Hiragana / Katakana / Numeric / Alphabet and uses it as a keyword. In some cases, a character string that cannot be extracted or a character string that is recognized as a word but cannot be considered as a keyword may be extracted, which not only causes discomfort to the viewer but also lowers the credibility of the function itself. I felt it.
[0020]
On the other hand, recently, there is a plan (megaport EPG) for transmitting program guide data of terrestrial analog broadcasting, BS digital broadcasting, and 110 ° CS digital broadcasting using one channel of BS digital. The program table data of the megaport EPG includes not only the program start time and the program title, but also keyword information, and it is possible not only to display the program table but also to perform a search using a keyword using this keyword information. That is, the use of the megaport EPG solves the above-mentioned problem.
[0021]
However, the transmission of program guide data for terrestrial digital broadcasting is not planned. For this reason, a terrestrial digital broadcast program guide cannot be displayed only by the megaport EPG. Therefore, the program guide data of each terrestrial digital TS (transport stream) is captured and displayed. However, since terrestrial digital TS does not have keyword information like the megaport EPG, it is not possible to search by keyword. For this reason, when performing a search by a keyword in the terrestrial digital, there is only a method of extracting and searching for a conventional keyword, and the conventional problem remains.
[0022]
The present invention has been made in view of the above points, while improving the weaknesses of the conventional method while maintaining the usability of the conventional method, and a simple and easy-to-use program search even for a terrestrial digital broadcast compatible TV without keyword information. The purpose is to provide functions.
[0023]
[Means for Solving the Problems]
The present invention does not extract a keyword by a simple algorithm, but uses a dictionary in which proper nouns are stored in advance, or keyword information of an EPG system that sends keyword information.
[0024]
In order to solve the above problems, the present invention takes the following measures.
[0025]
As a first solution, a program information search method in a television receiver according to the present invention includes the steps of: receiving and temporarily storing first program information without keyword information added; Collating the string with a proper noun character string included in the proper noun dictionary, presenting a character string that partially or entirely matches, and temporarily storing the character string based on a viewer selection character string in the presented character string. Searching for a character string of the first program information and displaying a list of applicable programs. Here, the program information of the viewer-selected program indicates one or both of the program title and the program detailed information (the same applies hereinafter).
[0026]
That is, a proper noun dictionary is prepared in advance as an aggregate of search keywords, and a character string included in the program information of the viewer-selected program is collated with a proper noun character string included in the proper noun dictionary. That is, a character string included in the program information of the viewer-selected program is searched using the character string of the proper noun as a keyword. Thereby, the search keyword can be narrowed down to a character string based on the proper noun. A search keyword narrowed down to a character string based on a proper noun is more appropriate as a keyword for searching for the first program information without keyword information added and received and temporarily stored, and is more accurate in search. It will be. That is, a character string that is not recognized as a word or a character string that is recognized as a word but cannot be regarded as a keyword can be excluded from the target of extraction. Therefore, a highly reliable program search can be realized without giving the viewer any discomfort and maintaining the conventional usability.
[0027]
As a second solution, a program information search method in a television receiver according to the present invention includes the steps of: receiving and temporarily storing first program information without keyword information added and second program information with keyword information added; Comparing the character string of the program information of the viewer-selected program with the character string of the keyword information of the temporarily stored second program information, and presenting a character string that partially or entirely matches; Searching for the temporarily stored first program information character string based on the viewer selection character string in the column, and displaying a list of applicable programs.
[0028]
In the case of the first solution, a proper noun dictionary is prepared and collation is performed using a character string of a proper noun included in the proper noun dictionary as a keyword. Using program information to which keyword information such as an EPG is added, collation is performed using a character string of the keyword information included in the second program information to which the keyword information is added as a keyword.
[0029]
In the case of the first solution, keyword matching is performed using a proper noun dictionary. Since the proper noun character strings included in the proper noun dictionary are invariable and fixed, a timely and flexible program search is performed. Can not do. On the other hand, according to the second solving means, the temporarily stored keyword information non-added second information is utilized by using the keyword information included in the program information to which the keyword information such as the megaport EPG received as needed is added. In this case, the search for one program information is performed, and the candidate for the keyword is updated as needed. Therefore, a timely and flexible program search using the keyword can be realized.
[0030]
The third solution of the present invention corresponds to a combination of the first solution and the second solution. That is, as a third solution, a program information search method in a television receiver according to the present invention receives and temporarily stores first program information to which keyword information is not added and second program information to which keyword information is added. Comparing the character string of the program information of the viewer-selected program with the character string of the proper noun included in the proper noun dictionary, and presenting a character string that partially or wholly matches; Collating the character string of the program information with the character string of the keyword information of the temporarily stored second program information, and presenting a character string that partially or entirely matches; a viewer in both of the presented character strings; Searching for the character string of the temporarily stored first program information based on the selected character string, and displaying a list of applicable programs. Here, the order relation between the step of collating with a proper noun character string and presenting a matching character string and the step of collating with the character string of keyword information of the second program information and presenting a matching character string is one of: May be first or may be simultaneous.
[0031]
According to this, the character string obtained by collating with the proper noun included in the proper noun dictionary and the character string obtained by collating with the keyword information included in the second program information added with the keyword information such as the megaport EPG are compared. Is searched for the first program information to which no keyword information is added, using both character strings as candidates. That is, in addition to a program search using timely and flexible keywords, there is a means for searching for basic keywords using a proper noun dictionary. Therefore, the range of keywords for program search can be further increased, and a wide search function can be provided to the viewer.
[0032]
The fourth to sixth solutions use a keyword ID for identifying an access position. Although the first program information does not originally have keyword information added thereto, the television receiver uses the keyword information by adding the keyword information for speeding up collation and search.
[0033]
As a fourth solution, a program information search method in a television receiver according to the present invention includes the steps of: receiving and temporarily storing first program information to which keyword information is not added; Embedding a keyword ID for identifying an access position to the dictionary; and accessing the proper noun dictionary based on the keyword ID of the program information of the viewer-selected program, and writing a proper noun character included in the proper noun dictionary Presenting a character string that partially or entirely matches from the column, and searching for the temporarily stored first program information based on the keyword ID corresponding to a viewer selection character string in the presented character string; Displaying a list of applicable programs.
[0034]
In the case of the first solving means, since the matching with the proper noun dictionary and the search for the first program information without the addition of the keyword information are performed on a character string basis, and since all the program information is targeted, it is sufficient. High speed cannot be expected. On the other hand, by using the keyword ID, the collation / search for the proper noun dictionary and the first program information can be performed based on the keyword ID, and the search time after receiving the search start request by the viewer is greatly reduced. Can be shortened.
[0035]
As a fifth solution, a program information search method in a television receiver according to the present invention includes the steps of: receiving and temporarily storing first program information without keyword information and second program information with keyword information added; Embedding a keyword ID for identifying an access position to the second program information in the first program information; and storing the temporarily stored second ID based on the keyword ID of the program information of the viewer-selected program. Accessing the program information, and presenting a character string that partially or entirely matches the character string of the keyword information included in the second program information, and corresponding to a viewer selection character string in the presented character string. Searching for the temporarily stored first program information based on the keyword ID, and displaying a list of applicable programs. To.
[0036]
In the case of the second solving means, the collation with the second program information to which the keyword information is added and the search for the first program information to which no keyword information is added are performed on a character string basis. Therefore, sufficient speedup cannot be expected. On the other hand, by using the keyword ID, the collation and search for the first and second program information can be performed based on the keyword ID, and the search time after receiving the search start request from the viewer is greatly reduced. can do.
[0037]
As a sixth solution, a program information search method in a television receiver according to the present invention includes the steps of: receiving and temporarily storing first program information to which keyword information is not added and second program information to which keyword information is added. Embedding a keyword ID for identifying an access position to a proper noun dictionary and an access position to the second program information in the first program information; And accessing the proper noun dictionary or the temporarily stored second program information based on a character string that partially or entirely matches the character string of the keyword information included in the proper noun dictionary or the second program information. Presenting, and temporarily storing based on the keyword ID corresponding to a viewer selection character string in the presented character string. Find the first program information, characterized by comprising the step of displaying a list of these programs.
[0038]
According to this, matching / searching for the proper noun dictionary and the first and second program information can be performed on the basis of the keyword ID, and the search time after receiving a search start request by the viewer can be greatly reduced. it can.
[0039]
A seventh solution is the third or sixth solution in which the proper noun dictionary and the second program information to which keyword information is added are provided with the following learning function as a more preferable aspect. . That is, characters that are not included in the set of character strings presented by matching with the proper nouns included in the proper noun dictionary among the set of character strings presented by matching with the keyword information of the second program information. Adding a column to the proper noun dictionary.
[0040]
According to this, a search keyword according to the viewer's viewing tendency is additionally stored in the proper noun dictionary sequentially, so that a timely, intelligent and wide search can be realized.
[0041]
The invention in the program information search method in the television receiver described above can be developed as follows in a television receiver.
[0042]
As a first solution, a television receiver according to the present invention includes a terrestrial digital program information data acquisition unit for acquiring terrestrial digital program information from a signal received by a terrestrial digital tuner, and a terrestrial digital program information for storing the acquired terrestrial digital program information. A storage device for storing digital program information data, an event management unit that determines an operation event and issues an instruction, and performs necessary control according to an instruction from the event management unit and controls on-screen display of a program search state. A television control unit, and a storage device for a proper noun dictionary used for keyword extraction at the time of performing a program search; and the television control unit further includes a character string of program information of a viewer-selected program from the event management unit. Is compared with the proper noun character string included in the proper noun dictionary of the proper noun dictionary storage device, and a part or all of A matching character string is displayed on the screen, and a character string of the program information of the storage device for storing digital terrestrial digital program information data is searched based on the character string selected by the viewer from the event management unit. It is configured to perform on-screen display.
[0043]
With this configuration, when searching for a program, a character string of a proper noun in the storage device for the proper noun dictionary included in the program information (program title / detailed program information) of the viewer-selected program is extracted as a keyword and selected by the viewer. Then, it has a function of performing a search and presenting a corresponding program. That is, the search keyword narrowed down to a character string based on the proper noun is more appropriate as a keyword for searching for terrestrial digital program information without keyword information added and received and temporarily stored, and is more accurate in search. It will be expensive. That is, a character string that is not recognized as a word or a character string that is recognized as a word but cannot be regarded as a keyword can be excluded from the target of extraction. Therefore, a highly reliable program search can be realized without giving the viewer any discomfort and maintaining the conventional usability.
[0044]
As a second solution, a television receiver according to the present invention comprises a terrestrial digital program information data acquisition unit for acquiring program information from a signal received by a terrestrial digital tuner, and a terrestrial digital program for accumulating the acquired terrestrial digital program information. A storage device for storing information data, an event management unit for judging an operation event and issuing an instruction, and a television control for performing required control according to an instruction from the event management unit and controlling on-screen display of a program search state A megaport EPG program information data acquisition unit for acquiring megaport EPG program information received by the BS digital tuner; and a megaport EPG program information data storage device for accumulating the acquired megaport EPG program information. The television control unit selects a viewer from the event management unit. The character string of the program information of the program is compared with the character string included in the megaport EPG program information of the megaport EPG program information data storage device, and a character string that partially or entirely matches is displayed on screen, and the event management is performed. A character string of the program information in the storage device for storing digital terrestrial program information data is searched based on a viewer-selected character string from the section, and a list of applicable programs is displayed on-screen.
[0045]
Instead of the proper noun dictionary storage device, a terrestrial digital program information data storage storage device is used. With this configuration, when searching for a program, a character string of the keyword information of the megaport EPG program information included in the program information (program title / detailed program information) of the viewer-selected program is extracted as a keyword, and the viewer is selected. It has the effect of performing a search and presenting the relevant program. Searching for temporarily stored terrestrial digital program information without keyword information by using keyword information included in megaport EPG program information to which keyword information to be received as needed is added, and keyword candidates are updated as needed. Therefore, a timely and flexible program search using a keyword can be realized.
[0046]
As a third solution, a television receiver according to the present invention comprises a terrestrial digital program information data acquisition section for acquiring terrestrial digital program information from a signal received by a terrestrial digital tuner, and a terrestrial digital program information for storing the acquired terrestrial digital program information. A storage device for storing digital program information data, an event management unit that determines an operation event and issues an instruction, and performs necessary control according to an instruction from the event management unit and controls on-screen display of a program search state. A television control unit, a storage device for a proper noun dictionary used for keyword extraction when performing a program search, a megaport EPG program information data acquisition unit for acquiring megaport EPG program information received by a BS digital tuner, and an acquired megaport EPG Megaport EPG program information data storage for storing program information Further comprising a storage device, wherein the television control unit stores a character string of a proper noun included in a proper noun dictionary of the storage device for the proper noun dictionary by storing a character string of program information of a viewer-selected program from the event management unit. And a character string included in the megaport EPG program information in the megaport EPG program information data storage storage device, and a character string that partially or entirely matches is displayed on-screen, and a viewer-selected character from the event management unit is displayed. A search is made for a character string of program information in the storage device for storing digital terrestrial program information data on the basis of a column, and a list of applicable programs is displayed on-screen.
[0047]
With this configuration, when searching for a program, both the character string of the proper noun dictionary storage device included in the program information (program title and program detailed information) of the viewer-selected program and the character string of the keyword information of the megaport EPG program information Is extracted as a keyword, the viewer is allowed to select both keywords as candidates, search is performed, and the corresponding program is presented. That is, in addition to a program search using timely and flexible keywords, a basic keyword using a proper noun dictionary can be searched. Therefore, the range of keywords for program search can be further increased, and a wide search function can be provided to the viewer.
[0048]
As a fourth solution, a television receiver according to the present invention is the television receiver according to the first solution, wherein the television control unit is included in the proper noun dictionary in the storage device for the proper noun dictionary. Means for embedding a keyword ID for identifying an access position to the proper noun dictionary in the terrestrial digital program information in the storage device for storing terrestrial digital program information data based on a character string of the proper noun to be read, Access the proper noun dictionary in the proper noun dictionary storage device based on the keyword ID of the program information of the selected program, and turn on a character string that partially or entirely matches the proper noun character string included in the proper noun dictionary. Means for screen display, based on the keyword ID corresponding to a viewer selection character string in the presentation character string The searching terrestrial digital program information terrestrial digital program information stored in the data storage memory, and a means for displaying a list of these programs.
[0049]
When the terrestrial digital program information is acquired, a keyword ID for referring to the character string of the proper noun dictionary is added to the program information of each terrestrial digital program and stored in the terrestrial digital program information data storage storage device, When searching for a program, it has an effect of searching by comparing keyword IDs. By using the keyword ID, the matching / search for the proper noun dictionary can be performed based on the keyword ID, and the search time after receiving a search start request by the viewer can be greatly reduced. Even if the program information handled increases, the increase in search processing time is reduced, and the viewer does not have to feel stressed.
[0050]
According to a fifth aspect of the invention, there is provided a television receiver according to the second aspect, wherein the television control unit is configured to control the megaport EPG in the megaport EPG program information data storage device. Means for embedding a keyword ID for identifying an access position to the megaport EPG program information in the terrestrial digital program information in the terrestrial digital program information data storage based on the keyword information of the program information; Means for accessing the megaport EPG program information based on the keyword ID of the program information of the user-selected program, and displaying on-screen a character string that partially or entirely matches the character string of the keyword information included in the megaport EPG program information And a viewer selection character in the presented character string The searching terrestrial digital program information terrestrial digital program information stored in the data storage memory, and a means for displaying a list of these programs on the basis of the keyword ID corresponding to.
[0051]
When the terrestrial digital program information is obtained, a keyword ID for referring to the keyword information of the megaport EPG is added to the program information of each terrestrial digital program and stored in the terrestrial digital program information data storage storage device. Has the effect of performing a search by comparing keyword IDs when searching for. By using the keyword ID, the collation and search for the megaport EPG program information can be performed on the basis of the keyword ID, and the search time after receiving a search start request from the viewer can be greatly reduced.
[0052]
As a sixth solution means, in the television receiver according to the present invention, in the television receiver according to the third solution means, the television control unit is included in the proper noun dictionary in the storage device for the proper noun dictionary. The terrestrial digital program information in the terrestrial digital program information data storage device based on the character string of the proper noun and the keyword information of the megaport EPG program information in the megaport EPG program information data storage device. Means for embedding a keyword ID for identifying an access position to the noun dictionary and an access position to the megaport EPG program information; and the proper noun dictionary or the megaport EPG based on the keyword ID of the program information of the viewer-selected program. Accessing program information, the proper noun dictionary Means for on-screen display of a character string that partially or entirely matches the character string of the proper noun included or the character string of the keyword information included in the megaport EPG program information, and a viewer selection character string in the presentation character string Means for searching terrestrial digital program information stored in the terrestrial digital program information data storage based on the keyword ID corresponding to the keyword ID, and displaying a list of applicable programs.
[0053]
When the terrestrial digital program information is acquired, a keyword ID for referring to the proper noun dictionary and the keyword information of the megaport EPG is added to the program information of each terrestrial digital program, and the terrestrial digital program information data storage device is stored. It has the function of storing and searching by comparing keyword IDs when searching for programs. By using the keyword ID, it is possible to collate and search the proper noun dictionary and the megaport EPG program information on the basis of the keyword ID, and it is possible to greatly reduce the search time after receiving a search start request from a viewer.
[0054]
A seventh solution is the third or sixth solution in which the proper noun dictionary and the megaport EPG program information are used together, and as a further preferred embodiment, the following learning function is provided. That is, the television control unit further includes, among a set of character strings presented in the collation with the megaport EPG program information, a set of character strings presented in the collation with the proper noun included in the proper noun dictionary. Means for adding a missing character string to the proper noun dictionary in the proper noun dictionary storage device.
[0055]
According to this, a search keyword according to the viewer's viewing tendency is additionally stored in the proper noun dictionary sequentially, so that a timely, intelligent and wide search can be realized.
[0056]
As described in detail above, it is expected that the present invention will show its true value in televisions compatible with digital terrestrial broadcasting in which broadcasting is about to start. That is, digital terrestrial broadcasting can provide about three times as many services as digital terrestrial broadcasting by digitizing. On the other hand, it is clear that the viewer has difficulty in searching for the program he / she wants to watch, and the simple program search function as in the present invention has a great effect on resolving dissatisfaction with the operability of the viewer.
[0057]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of a television receiver and a program information search method according to the present invention will be described with reference to the drawings.
[0058]
(Embodiment 1)
In the terrestrial digital broadcasting compatible television configured as shown in FIG. 1, a description will be given with reference to the processing flow of the television control unit in FIG.
[0059]
FIG. 1 is a block diagram illustrating a configuration of a terrestrial digital broadcast compatible television provided with the program information search method according to the first embodiment of the present invention.
[0060]
In FIG. 1, reference numeral 20 denotes a terrestrial digital tuner that receives video / audio signals of terrestrial digital broadcasting, 21 denotes a terrestrial digital program information data acquisition unit that acquires terrestrial digital program information data, and 22 denotes a terrestrial that stores the acquired program information data. A storage device for storing digital program information data, 18 is a video / audio input switching unit for switching video / audio from a terrestrial digital tuner 20 and an external device, 19 is a speaker for outputting audio, and 16 is a video signal processing for processing video signals. , A television control unit 13 for controlling the television receiver, 11 a remote control code decoding unit for decoding a transmission code from the remote control, and 12 a television which judges an event input from the remote control code decoding unit 11 and judges the event. The event management unit 14 issues an instruction to the control unit 13. The event management unit 14 issues an instruction from the television control unit 13. An on-screen display processing unit for performing on-screen display; 15, a time management unit for performing time management; 17, a display device for displaying images and on-screen; The video synthesizing processing unit 24 is a storage device for a proper noun dictionary used for extracting a keyword when performing a program search. The configuration of the first embodiment corresponds to a configuration in which a proper noun dictionary storage device 24 is added to the conventional configuration (FIG. 18).
[0061]
Next, the operation of the program information search method in the terrestrial digital broadcast-compatible television of the first embodiment configured as described above will be described with reference to the flowchart shown in FIG. FIG. 2 shows a conventional method in which STEP 5 in FIG. 21 in FIG. 21 is changed to STEP 51, and the others are the same.
[0062]
First, in STEP 1, for an event resulting from the reception and decoding of the remote control code by the remote control code decoding unit 11, the event management unit 12 determines whether the event is an event for presenting program contents and at the same time specifies a program for presenting program contents. I do. If the event is not a program content presentation event, the process ends.
[0063]
If the event is a program content presentation event, the process proceeds to STEP 2 and the program information of the program specified by the event management unit 12 is read from the terrestrial digital program information data storage device 22.
[0064]
Next, in STEP 3, the data read from the terrestrial digital program information data storage storage device 22 is notified to the on-screen display processing unit 14 and displayed on the screen.
[0065]
Next, in STEP 4, it is determined whether the event management unit 12 has received a keyword search event through the remote control code decoding unit 11. If the event is not a keyword search event, the process ends.
[0066]
In the case of a keyword search event, the process proceeds to STEP 51, which is a feature of the present embodiment, in which the proper noun is read from the proper noun dictionary storage device 24, and the read proper noun is added to the program title and program content of the viewer-selected program. It checks whether it is included, and extracts the included proper noun as a keyword.
[0067]
Next, in STEP 6, the extracted keywords are listed, notified to the on-screen display processing unit 14, and displayed on the screen.
[0068]
Next, in STEP 7, it is determined whether or not the event management unit 12 has received a keyword selection event through the remote control code decoding unit 11. If the event is not a keyword selection event, the process ends.
[0069]
If the event is a keyword selection event, the process proceeds to STEP 8 to compare the program title and program content of the program information stored in the terrestrial digital program information data storage 22 with the selected keyword, and Search for programs that contain a character string.
[0070]
Next, in STEP 9, a list of programs extracted by the search is notified to the on-screen display processing unit 14 and displayed on the screen.
[0071]
FIG. 3 is a diagram showing an outline of the first embodiment. Character strings included in the program titles / program contents of the terrestrial digital program information (first program information) having no keyword information are collated with the proper noun character strings (keywords 1 to M) included in the proper noun dictionary. . The matching character string is presented to the viewer as a search keyword. The viewer selects a desired one of the plurality of search keywords (character strings) presented. A search is performed on the program title and program contents of the terrestrial digital program information (first program information) by a viewer selection character string (search keyword), and the corresponding program information is displayed.
[0072]
FIG. 4 is a transition example of screen display when a search is executed. FIG. 4A shows a screen display state, in which program information of a viewer-selected program is displayed on a screen, and a "keyword search" button is displayed on the screen. When the "keyword search" button is operated, a list of matching character strings is displayed as a search keyword candidate. FIG. 4B shows a state of the processing, in which the character string of the proper noun included in the proper noun dictionary is compared with the character strings included in the program title and the program contents of the program information of the viewer-selected program.
[0073]
(Embodiment 2)
A description will be given with reference to the processing flow of the television control unit in FIG. 7 in the terrestrial digital broadcasting compatible television configured as shown in FIG.
[0074]
FIG. 5 is a block diagram showing a configuration of a terrestrial digital broadcast compatible television provided with the program information search method according to Embodiment 2 of the present invention. 5, the same reference numerals as those in FIG. 1 of the first embodiment denote the same components, and a detailed description thereof will be omitted. Briefly, 20 is a terrestrial digital tuner, 21 is a terrestrial digital program information data acquisition unit, 22 is a storage device for storing terrestrial digital program information data, 18 is a video / audio input switching unit, 19 is a speaker, and 16 is a video signal. A processing unit, 13 is a television control unit, 11 is a remote control code decoding unit, 12 is an event management unit, 14 is an on-screen display processing unit, 15 is a time management unit, 17 is a display device, and 23 is a video synthesis processing unit. 25 is a BS digital tuner that receives a BS digital broadcast video / audio signal as a new component, 26 is a megaport EPG program information data acquisition unit that acquires EPG data transmitted on a megaport channel of BS digital broadcast, 27 Is a megaport EPG program information data storage device for storing the acquired program information data. The configuration of the second embodiment corresponds to a configuration in which a BS digital tuner 25, a megaport EPG program information data acquisition unit 26, and a storage device 27 for storing megaport EPG program information data are added to the conventional configuration (FIG. 18).
[0075]
FIG. 6 shows the format of megaport EPG program information data. 19 does not have keyword information, but the megaport EPG program information data of FIG. 6 has keyword information.
[0076]
Next, the operation of the program information search method in the terrestrial digital broadcast-compatible television according to the second embodiment configured as described above will be described with reference to the flowchart shown in FIG. FIG. 7 is the same as the conventional method except that STEP5 in FIG. 21 is changed to STEP52.
[0077]
First, in STEP 1, for an event resulting from the reception and decoding of the remote control code by the remote control code decoding unit 11, the event management unit 12 determines whether the event is an event for presenting program contents and at the same time specifies a program for presenting program contents. I do. If the event is not a program content presentation event, the process ends.
[0078]
If the event is a program content presentation event, the process proceeds to STEP 2 and the program information of the program specified by the event management unit 12 is read from the terrestrial digital program information data storage device 22.
[0079]
Next, in STEP 3, the data read from the terrestrial digital program information data storage storage device 22 is notified to the on-screen display processing unit 14 and displayed on the screen.
[0080]
Next, in STEP 4, it is determined whether the event management unit 12 has received a keyword search event through the remote control code decoding unit 11. If the event is not a keyword search event, the process ends.
[0081]
In the case of a keyword search event, the process proceeds to STEP 52, which is a feature of the present embodiment, and keyword information is read from the megaport EPG program information data storage storage device 27, and the read keywords are the program title and the program of the viewer-selected program. Check if it is included in the contents and extract the included keywords.
[0082]
Next, in STEP 6, the extracted keywords are listed, notified to the on-screen display processing unit 14, and displayed on the screen.
[0083]
Next, in STEP 7, it is determined whether or not the event management unit 12 has received a keyword selection event through the remote control code decoding unit 11. If the event is not a keyword selection event, the process ends.
[0084]
If the event is a keyword selection event, the process proceeds to STEP 8 to compare the program title and program content of the program information stored in the terrestrial digital program information data storage 22 with the selected keyword, and Search for programs that contain a character string.
[0085]
Next, in STEP 9, a list of programs extracted by the search is notified to the on-screen display processing unit 14 and displayed on the screen.
[0086]
FIG. 8 is a diagram showing an outline of the second embodiment. The character string included in the program title / program content of the terrestrial digital program information without keyword information (first program information) is the character string included in megaport EPG program information (second program information) having a search keyword (Keywords 1 to M).
[0087]
FIG. 9 shows a transition example of screen display when a search is executed. FIG. 9A shows a screen display state, in which program information of a viewer-selected program is displayed on a screen, and a "keyword search" button is displayed on the screen. When the "keyword search" button is operated, a list of matching character strings is displayed as a search keyword candidate. FIG. 9B shows the state of the processing, in which the character string of the keyword information included in the megaport EPG program information is compared with the character strings included in the program title and the program contents of the program information of the viewer-selected program.
[0088]
(Embodiment 3)
A description will be given with reference to the processing flow of the television control unit in FIG. 11 in the terrestrial digital broadcast compatible television configured as shown in FIG. This embodiment corresponds to a combination of the configuration of the first embodiment shown in FIG. 1 and the configuration of the second embodiment shown in FIG.
[0089]
FIG. 10 is a block diagram showing a configuration of a terrestrial digital broadcast compatible television provided with the program information search method according to Embodiment 3 of the present invention. 10, the same reference numerals as those in FIG. 1 of the first embodiment denote the same components, and therefore, the same portions will be denoted by the same reference characters, and detailed description will be omitted. In the configuration of the present embodiment, a storage device 24 for proper noun dictionary, a BS digital tuner 25, a megaport EPG program information data acquisition unit 26, and a storage device 27 for storing megaport EPG program information data are added to the conventional configuration (FIG. 18). It is equivalent to what was done.
[0090]
Next, the operation of the program information search method in the terrestrial digital broadcast-compatible television of the third embodiment configured as described above will be described with reference to the flowchart shown in FIG. FIG. 11 corresponds to a conventional method in which STEP 5 in FIG. 21 is changed to STEP 51 and STEP 52 and STEP 6 is changed to STEP 61 in FIG. That is, it corresponds to a process in which the process of the first embodiment shown in FIG. 2 and the process of the second embodiment shown in FIG. 7 are combined, and the other STEPs are the same.
[0091]
First, in STEP 1, for an event resulting from the reception and decoding of the remote control code by the remote control code decoding unit 11, the event management unit 12 determines whether the event is an event for presenting program contents and at the same time specifies a program for presenting program contents. I do. If the event is not a program content presentation event, the process ends.
[0092]
If the event is a program content presentation event, the process proceeds to STEP 2 and the program information of the program specified by the event management unit 12 is read from the terrestrial digital program information data storage device 22.
[0093]
Next, in STEP 3, the data read from the terrestrial digital program information data storage storage device 22 is notified to the on-screen display processing unit 14 and displayed on the screen.
[0094]
Next, in STEP 4, it is determined whether the event management unit 12 has received a keyword search event through the remote control code decoding unit 11. If the event is not a keyword search event, the process ends.
[0095]
In the case of a keyword search event, the process proceeds to STEP 51, which is a feature of the present embodiment, in which the proper noun is read from the proper noun dictionary storage device 24, and the read proper noun is added to the program title and program content of the viewer-selected program. It checks whether it is included, and extracts the included proper noun as a keyword.
[0096]
Further, in STEP 52 which is a feature of the present embodiment, the keyword information is read from the megaport EPG program information data storage device 27, and it is confirmed whether the read keyword is included in the program title and the program content of the viewer-selected program. , And extract the included keywords.
[0097]
Further, in STEP 61 which is a feature of the present embodiment, the keywords extracted from the storage device 24 for proper noun dictionary and the storage device 27 for storing megaport EPG program information data are listed and notified to the on-screen display processing unit 14, and the screen is displayed. indicate.
[0098]
Next, in STEP 7, it is determined whether or not the event management unit 12 has received a keyword selection event through the remote control code decoding unit 11. If the event is not a keyword selection event, the process ends.
[0099]
If the event is a keyword selection event, the process proceeds to STEP 8 to compare the program title and program content of the program information stored in the terrestrial digital program information data storage 22 with the selected keyword, and Search for programs that contain a character string.
[0100]
Next, in STEP 9, a list of programs extracted by the search is notified to the on-screen display processing unit 14 and displayed on the screen.
[0101]
FIG. 12 is a diagram showing an outline of the third embodiment. A character string included in the program title / program content of the terrestrial digital program information (first program information) having no keyword information is a character string (keywords 1 to M) of proper nouns included in the proper noun dictionary, and a search. Are collated by the character strings (keywords 1 to M) included in the megaport EPG program information (second program information) having the keyword for use.
[0102]
(Embodiment 4)
The configuration of a terrestrial digital broadcast compatible television according to the present embodiment is the same as the configuration shown in FIG. 10 in the case of the third embodiment, and a description thereof will be omitted. This will be described with reference to FIG. 13 while referring to the processing flow of the television control unit.
[0103]
FIG. 13 corresponds to a case where STEP 62 is added after STEP 61 in FIG. 11 in the case of the third embodiment.
[0104]
First, in STEP 1, for an event resulting from the reception and decoding of the remote control code by the remote control code decoding unit 11, the event management unit 12 determines whether the event is an event for presenting program contents and at the same time specifies a program for presenting program contents. I do. If the event is not a program content presentation event, the process ends.
[0105]
If the event is a program content presentation event, the process proceeds to STEP 2 and the program information of the program specified by the event management unit 12 is read from the terrestrial digital program information data storage device 22.
[0106]
Next, in STEP 3, the data read from the terrestrial digital program information data storage storage device 22 is notified to the on-screen display processing unit 14 and displayed on the screen.
[0107]
Next, in STEP 4, it is determined whether the event management unit 12 has received a keyword search event through the remote control code decoding unit 11. If the event is not a keyword search event, the process ends.
[0108]
If the event is a keyword search event, the process proceeds to STEP 51, where the proper noun is read from the proper noun dictionary storage device 24, and it is confirmed whether the read proper noun is included in the program title and program contents of the viewer-selected program. The proper noun to be extracted is extracted as a keyword.
[0109]
Then, in STEP 52, the keyword information is read from the megaport EPG program information data storage device 27, and it is confirmed whether the read keyword is included in the program title and the program content of the viewer-selected program, and the included keyword is extracted.
[0110]
Next, in STEP 61, the keywords extracted from the storage device for proper noun dictionary 24 and the storage device 27 for storing megaport EPG program information data are listed, notified to the on-screen display processing unit 14, and displayed on the screen.
[0111]
Next, in STEP 62 which is a feature of the present embodiment, a keyword extracted from the keyword information of the megaport EPG program information data storage storage device 27 is added to the proper noun dictionary storage device 24 as a proper noun.
[0112]
Next, in STEP 7, it is determined whether or not the event management unit 12 has received a keyword selection event through the remote control code decoding unit 11. If the event is not a keyword selection event, the process ends.
[0113]
If the event is a keyword selection event, the process proceeds to STEP 8 to compare the program title and program content of the program information stored in the terrestrial digital program information data storage 22 with the selected keyword, and Search for programs that contain a character string.
[0114]
Next, in STEP 9, a list of programs extracted by the search is notified to the on-screen display processing unit 14 and displayed on the screen.
[0115]
FIG. 14 is a diagram showing an outline of the fourth embodiment. A character string included in the program title / program content of the terrestrial digital program information (first program information) having no keyword information is a character string (keywords 1 to M) of proper nouns included in the proper noun dictionary, and a search. Is collated by the character strings (keywords 1 to M) included in the megaport EPG program information (second program information) having the keyword for use. Further, when the character string included in the megaport EPG program information (second program information) matches the character string included in the program title / program content of the terrestrial digital program information (first program information), the megaport The character string of the EPG program information is added to the proper noun dictionary.
[0116]
(Embodiment 5)
The configuration of the terrestrial digital broadcasting compatible television in this embodiment is also the same as the configuration of the third embodiment (FIG. 10), and the description is omitted. This embodiment is characterized by terrestrial digital program information storage processing and terrestrial digital program search processing. The processing for storing digital terrestrial program information according to the first to fourth embodiments has been omitted because the processing is simple. In other words, the terrestrial digital program information storage process simply needs to be stored in the terrestrial digital program information data storage device 22 through the terrestrial digital program information data acquisition unit 21 when the terrestrial digital program information storage process is required. It is.
[0117]
However, in the terrestrial digital program information storage processing of the fifth embodiment, processing for embedding keyword information in terrestrial digital program information is required to speed up the search.
[0118]
FIG. 15 shows information to be embedded in digital terrestrial program information. The storage device for the proper noun dictionary and the keyword ID indicating where to access the keyword information of the megaport EPG program information and the information on the number of keyword IDs are stored in the format for storing the terrestrial digital program information as the keyword information. Add. As a result, a search using the keyword ID becomes possible.
[0119]
FIG. 16 shows the flow of digital terrestrial program information storage processing in the television control unit according to the fifth embodiment. It will be described along with STEP.
[0120]
First, in STEP 100, it is necessary to read out the next program information acquisition time stored in the storage device 27 for storing megaport EPG program information data and compare it with the time of the time management unit 15 to acquire megaport EPG program information. to decide. If there is no need to acquire, the process proceeds to STEP104.
[0121]
If it is necessary to obtain the information, the process proceeds to STEP 101, and the megaport EPG program information is stored in the megaport EPG program information data storage device 27 through the megaport EPG program information data acquisition unit 26.
[0122]
Next, in STEP 102, it is checked whether the keyword information stored in the storage device 27 for storing megaport EPG program information data has been updated. If it has not been updated, the process proceeds to STEP104.
[0123]
If it has been updated, the process proceeds to STEP 103, where the keyword ID added to the terrestrial digital program information is reassigned based on the keyword information of the megaport EPG, and the number of keyword IDs is updated as necessary.
[0124]
Next, in STEP 104, it is necessary to read out the next program information acquisition time stored in the terrestrial digital program information data storage storage device 22 and compare it with the time of the time management unit 15 to acquire terrestrial digital program information. Judge. If there is no need to acquire, terminate.
[0125]
If it is necessary to obtain the information, the process proceeds to STEP 105, and the terrestrial digital program information is stored in the terrestrial digital program information data storage device 22 through the terrestrial digital program information data obtaining unit 21.
[0126]
Next, in STEP 106, the keyword information stored in the megaport EPG program information data storage storage device 27 and the proper noun stored in the proper noun dictionary storage device 24 are read, and the program title of each terrestrial digital program information is read out. The keyword and proper noun included in the program contents are added to the terrestrial digital program information as keyword information, and the keyword ID and the number of keyword IDs are added and stored in the terrestrial digital program information data storage device 22.
[0127]
FIG. 17 is a diagram showing a flow of a terrestrial digital program search process in the television control unit according to the fifth embodiment. In the case of the fourth embodiment, STEP53 is replaced with STEP53 instead of STEP51, STEP52, and STEP61 in FIG. Is replaced with STEP81. It will be described along with STEP.
[0128]
First, in STEP 1, for an event resulting from the reception and decoding of the remote control code by the remote control code decoding unit 11, the event management unit 12 determines whether the event is an event for presenting program contents and at the same time specifies a program for presenting program contents. I do. If the event is not a program content presentation event, the process ends.
[0129]
If the event is a program content presentation event, the process proceeds to STEP 2 and the program information of the program specified by the event management unit 12 is read from the terrestrial digital program information data storage device 22.
[0130]
Next, in STEP 3, the data read from the terrestrial digital program information data storage storage device 22 is notified to the on-screen display processing unit 14 and displayed on the screen.
[0131]
Next, in STEP 4, it is determined whether the event management unit 12 has received a keyword search event through the remote control code decoding unit 11. If the event is not a keyword search event, the process ends.
[0132]
In the case of a keyword search event, the process proceeds to STEP 53, which is a feature of the present embodiment, in which keywords are read out based on the keyword ID of the viewer-selected program, made into a keyword list, notified to the on-screen display processing unit 14, and displayed on the screen. indicate.
[0133]
Next, in STEP 62, the keywords extracted from the keyword information in the megaport EPG program information data storage storage device 27 are added to the proper noun dictionary storage device 24 as proper nouns.
[0134]
Next, in STEP 7, it is determined whether or not the event management unit 12 has received a keyword selection event through the remote control code decoding unit 11. If the event is not a keyword selection event, the process ends.
[0135]
In the case of a keyword selection event, the process proceeds to STEP 81 which is a feature of the present embodiment, and the keyword ID of the program information stored in the terrestrial digital program information data storage storage device 22 is compared with the keyword ID of the selected keyword. To search for programs. That is, the search is performed based on the keyword ID.
[0136]
Next, in STEP 9, a list of programs extracted by the search is notified to the on-screen display processing unit 14 and displayed on the screen.
[0137]
In the above embodiment, terrestrial digital broadcasting is used as an EPG system that does not transmit keyword information, and megaport EPG (data is transmitted using one channel of BS digital) is used as an example of an EPG system that transmits keyword information. Although described above, the present invention is not limited to this combination.
[0138]
【The invention's effect】
As described above, according to the present invention, a proper noun dictionary is prepared in advance, and a proper noun in the proper noun dictionary included in the program information of the viewer-selected program is searched for as a keyword. Character strings that are not recognized as keywords, even if they are recognized as non-character strings or words, can be excluded from the target of extraction, without causing discomfort to the viewer, while maintaining the conventional usability, A highly reliable program search can be realized.
[0139]
In addition, when searching is performed using keyword information included in program information to which keyword information such as a megaport EPG received as needed is added, keyword candidates are updated as needed, and timely and flexible. A program search can be realized using various keywords.
[0140]
In addition, by combining both of the above techniques, in addition to the timely and flexible program search by keyword, a means for searching for a basic keyword using a proper noun dictionary is left, thereby further increasing the range of program search keywords. And a wide search function can be provided to the viewer.
[0141]
In addition, by adding the keyword presented to the viewer to the proper noun dictionary, the number of keyword candidates can be further increased, and a wide search function can be provided.
[0142]
Also, instead of a character string-based search, a keyword ID is added when program information is stored, and a search is performed based on the keyword ID when searching. Search time can be greatly reduced.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a terrestrial digital broadcast compatible television provided with a program information search method according to a first embodiment of the present invention.
FIG. 2 is a flowchart showing an operation of a program information search method in a terrestrial digital broadcast compatible television according to the first embodiment of the present invention;
FIG. 3 is a schematic explanatory diagram of a program information search method according to the first embodiment of the present invention.
FIG. 4 is an explanatory diagram of screen display transition and processing state of the program information search method according to the first embodiment of the present invention.
FIG. 5 is a block diagram showing a configuration of a terrestrial digital broadcast compatible television provided with the program information search method according to the second embodiment of the present invention.
FIG. 6 is an explanatory diagram of a format of megaport EPG program information data according to the second embodiment of the present invention.
FIG. 7 is a flowchart showing an operation of a program information search method in a terrestrial digital broadcast compatible television according to the second embodiment of the present invention;
FIG. 8 is a schematic explanatory diagram of a program information search method according to the second embodiment of the present invention.
FIG. 9 is an explanatory diagram of a screen display transition and a processing state of the program information search method according to the second embodiment of the present invention.
FIG. 10 is a block diagram showing a configuration of a terrestrial digital broadcast compatible television provided with the program information search method according to the third embodiment of the present invention.
FIG. 11 is a flowchart showing the operation of a program information search method in a terrestrial digital broadcast compatible television according to a third embodiment of the present invention;
FIG. 12 is a schematic explanatory diagram of a program information search method according to a third embodiment of the present invention.
FIG. 13 is a flowchart showing an operation of a program information search method in a terrestrial digital broadcast compatible television according to a fourth embodiment of the present invention;
FIG. 14 is a schematic explanatory diagram of a program information search method according to Embodiment 4 of the present invention.
FIG. 15 is a schematic explanatory diagram of a program information search method according to a fifth embodiment of the present invention.
FIG. 16 is a flowchart showing the operation of a program information storage process in a terrestrial digital broadcast compatible television according to the fifth embodiment of the present invention.
FIG. 17 is a flowchart showing an operation of a program information search method in a terrestrial digital broadcast-compatible television according to the fifth embodiment of the present invention.
FIG. 18 is a block diagram showing the configuration of a terrestrial digital broadcast compatible television provided with a program information search method according to the related art.
FIG. 19 is an explanatory diagram of a format of terrestrial digital program information data.
FIG. 20 is a schematic explanatory diagram of a program information search method according to the related art.
And FIG. 21 is a flowchart showing the operation of a program information search method in a conventional digital terrestrial television compatible television.
FIG. 22 is an explanatory diagram of screen display transition of a program information search method according to the related art.
[Explanation of symbols]
11 Remote control code decoding unit
12 Event Management Department
13 TV control unit
14 On-screen display processing unit
15 Time management
16 Video signal processing unit
17 Display device
18 Video / audio input switching unit
19 Speaker
20 terrestrial digital tuner
21 Digital terrestrial program information data acquisition unit
22 Storage device for storing digital terrestrial program information data
23 Image synthesis processing unit
24 Storage device for proper noun dictionaries
25 BS digital tuner
26 Megaport EPG program information data acquisition unit
27 Megaport EPG program information data storage storage device

Claims (14)

Receiving and temporarily storing the first program information with no keyword information added;
Collating the character string of the program information of the viewer-selected program with the character string of the proper noun included in the proper noun dictionary, and presenting a character string that partially or entirely matches;
Retrieving a character string of the temporarily stored first program information based on a viewer selection character string in the presentation character string, and displaying a list of applicable programs. A program information search method in a device. Receiving and temporarily storing the first program information with no keyword information added and the second program information with keyword information added;
Collating the character string of the program information of the viewer-selected program with the character string of the keyword information of the temporarily stored second program information, and presenting a character string that partially or entirely matches;
Retrieving a character string of the temporarily stored first program information based on a viewer selection character string in the presentation character string, and displaying a list of applicable programs. A program information search method in a device. Receiving and temporarily storing the first program information with no keyword information added and the second program information with keyword information added;
Collating the character string of the program information of the viewer-selected program with the character string of the proper noun included in the proper noun dictionary, and presenting a character string that partially or entirely matches;
Collating the character string of the program information of the viewer-selected program with the character string of the keyword information of the temporarily stored second program information, and presenting a character string that partially or entirely matches;
Retrieving a character string of the temporarily stored first program information based on a viewer selection character string in the two presented character strings, and displaying a list of applicable programs. A program information search method in a John receiver. Receiving and temporarily storing the first program information with no keyword information added;
Embedding a keyword ID for identifying an access position to the proper noun dictionary in the first program information;
Accessing the proper noun dictionary based on the keyword ID of the program information of the viewer-selected program, and presenting a character string that partially or entirely matches the character string of the proper noun included in the proper noun dictionary;
Searching for the temporarily stored first program information based on the keyword ID corresponding to the viewer selection character string in the presentation character string, and displaying a list of applicable programs. A method for retrieving program information in a television receiver. Receiving and temporarily storing the first program information with no keyword information added and the second program information with keyword information added;
Embedding a keyword ID for identifying an access position to the second program information in the first program information;
A character that accesses the temporarily stored second program information based on the keyword ID of the program information of the viewer-selected program, and partially or wholly matches the character string of the keyword information included in the second program information Presenting a column;
Searching for the temporarily stored first program information based on the keyword ID corresponding to the viewer selection character string in the presentation character string, and displaying a list of applicable programs. A method for retrieving program information in a television receiver. Receiving and temporarily storing the first program information with no keyword information added and the second program information with keyword information added;
Embedding a keyword ID for identifying an access position to the proper noun dictionary and an access position to the second program information in the first program information;
The proper noun dictionary or the temporarily stored second program information is accessed based on the keyword ID of the program information of the viewer-selected program, and characters of the keyword information included in the proper noun dictionary or the second program information are accessed. Presenting a partially or completely matching character string from the column;
Searching for the temporarily stored first program information based on the keyword ID corresponding to the viewer selection character string in the presentation character string, and displaying a list of applicable programs. A method for retrieving program information in a television receiver. 7. The program information search method according to claim 3, further comprising: comparing a set of character strings presented in the collation with the second program information with a proper noun included in the proper noun dictionary. A program information search method in a television receiver, comprising: adding a character string not included in a set of character strings to be presented to the proper noun dictionary. A terrestrial digital program information data acquisition unit that acquires terrestrial digital program information from a signal received by a terrestrial digital tuner,
A storage device for storing digital terrestrial digital program information data for storing the obtained digital terrestrial program information,
An event management unit that determines an operation event and issues an instruction;
A television control unit that performs necessary control according to an instruction from the event management unit and controls on-screen display of a program search state,
Storage device for proper noun dictionary used for keyword extraction when performing program search,
The television control unit compares the character string of the program information of the viewer-selected program from the event management unit with the character string of the proper noun included in the proper noun dictionary of the storage device for the proper noun dictionary, and partially or entirely. Is displayed on the screen, and a character string of the program information in the storage device for storing digital terrestrial digital program information data is searched based on the character string selected by the viewer from the event management unit. A television receiver configured to display on-screen. A terrestrial digital program information data acquisition unit that acquires program information from a signal received by the terrestrial digital tuner,
A storage device for storing digital terrestrial digital program information data for storing the obtained digital terrestrial program information,
An event management unit that determines an operation event and issues an instruction;
A television control unit that performs necessary control according to an instruction from the event management unit and controls on-screen display of a program search state,
A megaport EPG program information data acquisition unit for acquiring megaport EPG program information received by the BS digital tuner;
A storage device for storing megaport EPG program information data that stores the acquired megaport EPG program information;
The TV control unit compares a character string of program information of a viewer-selected program from the event management unit with a character string included in megaport EPG program information of the storage device for storing megaport EPG program information data, and partially or A character string that matches all is displayed on-screen, and a character string of program information in the terrestrial digital program information data storage storage device is searched based on a viewer selection character string from the event management unit. A television receiver configured to display the list on-screen. A terrestrial digital program information data acquisition unit that acquires terrestrial digital program information from a signal received by a terrestrial digital tuner,
A storage device for storing digital terrestrial digital program information data for storing the obtained digital terrestrial program information,
An event management unit that determines an operation event and issues an instruction;
A television control unit that performs necessary control according to an instruction from the event management unit and controls on-screen display of a program search state,
A storage device for a proper noun dictionary used for keyword extraction when performing a program search,
A megaport EPG program information data acquisition unit for acquiring megaport EPG program information received by the BS digital tuner;
A storage device for storing megaport EPG program information data that stores the acquired megaport EPG program information;
The television control unit stores the character string of the program information of the viewer-selected program from the event management unit and the character string of the proper noun included in the proper noun dictionary of the proper noun dictionary storage device and the megaport EPG program information data. The character string included in the megaport EPG program information of the storage device is compared with a character string that partially or entirely matches, on-screen display is performed, and based on the viewer-selected character string from the event management unit, the terrestrial digital program A television receiver configured to search for a character string of program information in an information data storage storage device and display a list of applicable programs on a screen. The television receiver according to claim 8,
The television control unit,
An access position to the proper noun dictionary is stored in the terrestrial digital program information in the terrestrial digital program information data storage device based on a character string of the proper noun included in the proper noun dictionary in the proper noun dictionary storage device. Means for embedding a keyword ID for identification;
A proper noun dictionary in the proper noun dictionary storage device is accessed based on the keyword ID of the program information of the viewer-selected program, and a part or all of the proper noun character strings included in the proper noun dictionary match. Means for displaying the columns on-screen;
Means for searching for terrestrial digital program information stored in the terrestrial digital program information data storage device based on the keyword ID corresponding to the viewer selection character string in the presentation character string, and displaying a list of applicable programs A television receiver comprising: The television receiver according to claim 9,
The television control unit,
An access position to the megaport EPG program information in the terrestrial digital program information in the terrestrial digital program information data storage device based on the keyword information of the megaport EPG program information in the megaport EPG program information data storage device. Means for embedding a keyword ID for identifying
The megaport EPG program information is accessed based on the keyword ID of the program information of the viewer-selected program, and a character string that partially or entirely matches the character string of the keyword information included in the megaport EPG program information is displayed on-screen. Means to
Means for searching for terrestrial digital program information stored in the terrestrial digital program information data storage device based on the keyword ID corresponding to the viewer selection character string in the presentation character string, and displaying a list of applicable programs A television receiver comprising: The television receiver according to claim 10,
The television control unit,
The terrestrial digital program information data is stored on the basis of a character string of a proper noun included in the proper noun dictionary in the proper noun dictionary storage device and keyword information of the megaport EPG program information in the megaport EPG program information data storage device. Means for embedding, in the digital terrestrial program information in the storage device, a keyword ID for identifying an access position to the proper noun dictionary and an access position to the megaport EPG program information;
The proper noun dictionary or the megaport EPG program information is accessed based on the keyword ID of the program information of the viewer-selected program, and a character string of a proper noun included in the proper noun dictionary or a keyword included in the megaport EPG program information Means for on-screen display of a character string that partially or entirely matches from the information character string;
Means for searching for terrestrial digital program information stored in the terrestrial digital program information data storage device based on the keyword ID corresponding to the viewer selection character string in the presentation character string, and displaying a list of applicable programs A television receiver comprising: 14. The television receiver according to claim 10, wherein the television control unit further includes a unique character noun dictionary included in the proper noun dictionary among a set of character strings presented in a collation with the megaport EPG program information. A television receiver, comprising: means for adding a character string that is not included in a set of character strings presented in matching with a noun to the proper noun dictionary in the proper noun dictionary storage device.

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