KR20090074607A - Method for controlling display for vocabulary learning with caption and apparatus thereof - Google Patents

Abstract

A method for controlling a display for vocabulary learning by caption information and an apparatus thereof are provided to extract caption information from a program that a user views, thereby performing various vocabulary learning programs based on the caption information. An input unit(120) receives input from a user. A caption decoding unit(130) decodes from an image signal. A word parsing unit(140) parses vocabulary in the decoded broadcasting caption information. A translation unit(150) extracts translation data of the extracted vocabulary. A storage unit(160) stores the extracted vocabulary and the translation data. A controller(170) controls the caption decoding unit, the word parsing unit, the translation unit and the storage unit according to input of the user inputted through the input unit.

Description

Display control method for vocabulary learning using caption information and device using the same {Method for controlling display for vocabulary learning with caption and apparatus

The present invention relates to a display apparatus that can store broadcasting subtitle information and utilize the subtitle information for learning various words.

At present, the information received by the TV is not limited to conventional video and audio information, and various additional information is also received. The most representative of them is character information such as caption information called captions.

In particular, the subtitle information is provided in various languages such as English as well as Korean.

In addition, there are various language learning display devices such as electronic dictionaries, but these devices merely use information previously stored in a memory.

In other words, there is no device that utilizes subtitle information received from a TV for language learning.

An object of the present invention is to provide a display device that can extract the subtitle information from the program that the user was watching to perform various word learning programs based on this information.

According to an aspect of the present invention, there is provided a method of controlling a display device for learning English words, the method comprising: determining whether a subtitle storage key signal exists from an input unit; Decoding broadcasting subtitle information from a video signal when the key signal is present; Parsing a word from the decoded broadcast caption information; A translation step of extracting translation data of the parsed word; And a storing step of storing the parsed word and the translation data.

The parsing of the word may include: a stop word processing step of removing unnecessary vocabulary; And a stem extracting step of grasping the change of the mother and transforming the stem into a basic form.

The translating step may include: retrieving a word that matches the parsed word from prestored dictionary data; And extracting analysis data corresponding to the matched word when a matched word is found.

On the other hand, the English word learning display device control method according to another embodiment of the present invention for achieving the above object comprises the steps of determining whether there is a word learning key signal from the input unit; Selecting a program name when the key signal is present; Extracting information about a word and a translation corresponding to the program name from a storage unit; And displaying contents corresponding to the extracted information on a screen.

And displaying one or more pieces of information, including information about the translation; Selecting from the plurality of pieces of information; And determining whether the selection is information on the interpretation or other information, and storing the determination result in a storage unit.

On the other hand, English word learning display device according to the present invention for achieving the above object, the input unit for receiving input from the user; A caption decoder to decode broadcast caption information from an image signal; A word parser that parses a word from the decoded broadcast caption information; A translation unit for extracting translation data of the extracted words; A storage unit for storing the extracted words and the translation data; And a controller configured to control the caption decoder, the word extractor, the translation unit, and the storage unit according to a user's input input through the input unit.

In addition, the display device is preferably a TV.

As described above, according to the present invention, it is possible to learn words based on the subtitles that came out of the program that he watched. Therefore, the user can learn English words more interestingly and actively while recalling the movie he watched.

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

1 is a detailed block diagram showing an example of the TV 100 for learning English for practicing the present invention. As shown in FIG. 1, the English learning TV 100 includes a broadcast receiver 110, an inputter 120, a caption decoder 130, a word parser 140, a translator 150, and a storage 160. ), A controller 170, a broadcast processor 180, a display information generator 185, and an outputter 190.

The broadcast receiving unit 110 tunes and demodulates any one of broadcasts wirelessly received through the air.

The input unit 120 transmits a user command received from the remote controller to the controller 170, and the controller 170 controls the overall operation of the TV 100 according to the user command received from the input unit 120.

The caption decoding unit 130 decodes the broadcast caption information from the broadcast signal received by the broadcast receiving unit 110.

The word parser 140 parses a word from the decoded broadcast caption information.

The translation unit 150 extracts the translation data from the dictionary information previously stored in the storage unit 160 with respect to the parsed word.

The storage unit 160 is a storage medium in which data generated by the word parser 140 and the translator 150 and other programs, data, and information necessary for the controller 170 to control the operation of the TV 100 are stored. to be.

The controller 170 controls the overall operation of the TV 100.

The broadcast processor 180 performs signal processing on the broadcast signal output from the broadcast receiver 110. The broadcast signal processed by the broadcast processor 180 is applied to the display information generator 185 and displayed on the output unit 190.

The display information generation unit 185 processes the image to be added to the broadcast signal by the control unit 170. Details thereof will be described below.

The output unit 190 outputs the broadcast signal output from the broadcast processor 180 and the signal output from the display information generator 185 and provides the same to the user.

Figure 2 is a flow chart provided in the description according to an embodiment of storing the English word using the TV of the present invention. In this example, assume that the user watches a movie with subtitles in English.

As shown in FIG. 2, the controller 170 checks whether a subtitle storage key is input through the input unit 120 (S210).

When the caption storage key is input (S210-Y), the caption decoding unit 130 decodes the broadcast caption information from the broadcast signal (S220).

The decoded broadcast caption information is parsed into each word by the word parser 140 (S230).

3 is a flowchart provided to explain the word parsing step.

There are many ways to parse words in subtitle information, but generally the "stopping-stemming algorithm" is the most widely known.

When parsing words with the above algorithm, there are three main steps: 1) removing unnecessary tags, 2) processing stop words, and 3) stemming.

First, unnecessary tags are removed from the caption information. It literally removes unnecessary tags and meta information other than the actual sentence constituting the subtitle information (S232).

After removing the tag as described above, the process goes through a process called stop word again (S234).

In other words, a specific word called a stop word is deleted from the subtitle in advance. Stopwords refer to unnecessary vocabulary, irrelevant to the content, typically strings such as numbers, symbols, and formulas, nonconceptual words used in grammar, vocabulary that is too high or low, and vocabulary that appears evenly across documents. do.

As a method of selecting a stop word, there is a method of using a stop word list and a method of selecting a stop word statistically.

A. How to use the stop word list

Common information extraction systems use lists of stop words to eliminate unnecessary vocabulary. The list of stopwords lists the words of the following parts of speech, which are removed from the document:

-Articles: a, an, the ... etc

Prepositions: above, around, before, etc.

-Conjunctions: where, as, but, and

-Pronouns: he, him, them, she ..

-Verb: be, are, was, etc.

Frequently used verbs: have, get, tell, say, etc.

In one embodiment of the present invention, a basic stop word processing is performed using a stop word list composed of about 200 vocabularies.

I. How to choose stop words statistically

In general, there are many forms of vocabulary in documents that cannot be removed only by the stopword list. Listing all of these vocabulary words in a stopword list is not only difficult but also inefficient. Therefore, in the present invention, a method of extracting a stop word statistically is performed in parallel to perform a more effective stop word processing process.

?-Elimination of numbers and symbols: Extracting a vocabulary from a document is determined using the spaces between the vocabularies. Therefore, unnecessary meaningless numbers, symbols, etc. may be extracted. In the present invention, strings such as numbers and special symbol expressions are additionally removed.

?-Unnecessary part-of-speech vocabulary removal: Removes conjunctions, prepositions, adverbs, etc. that have not been removed by a list of stop words. The words of these parts of speech are generally used for grammatical forms and are not necessary to understand the contents of subtitles. The part-of-speech judgment of each vocabulary is performed using Lexicon.

-Frequently used verbs and adjectives removed: Remove the most frequently used vocabulary or adjectives that are not removed by the stopword list. These vocabularies are often too obvious words such as i, am, you, etc., which are not helpful for language learning and are eliminated as they are repeated every program. In this case, the numerical information on the frequency of use of the vocabulary may be removed. Through such a stop word processing step, the number of vocabularies included in the subtitles is reduced, and only vocabularies capable of effectively expressing the contents of the subtitles exist.

After the stop word is processed in this way, the stem is extracted again (stemming) step (S236).

The stem extraction process detects changes in endings such as verbs, adjectives, and nouns and transforms them into basic forms. For example, the words "jumped", "jumper", or "jumps" are only variations of "jump". In this case, a stem extraction process is required to change the stem form of the word.

A well-known stem extraction algorithm is the algorithm introduced by M.F.Porter in 1980. Porter's stem extraction algorithm processes the mother transformation in five steps as shown in <Table 1>.

<Table 1> below is a list of typical items of the vocabulary transformation steps used in Porter's stem extraction algorithm.

TABLE 1

Most vocabulary can be extracted with the above algorithm. In addition, vocabulary causing irregular plurals and irregular tense variations can be solved by referring to an online dictionary or using a list of vocabulary of irregular variations.

By going through these steps, parsing is completed with only the necessary words in the subtitle information.

4 is an example of a movie scene. In the scene as shown in FIG. 4, in the case of the caption information "The heartbreak of a parent who's lost a child ..", words such as "The, of, a, who's, a" are deleted, and "heartbreak, parent, lost, Only words like "child" will be parsed.

2, the translation data corresponding to the parsed word is extracted (S240). Specifically, when the word "heartbreak" is searched in the dictionary pre-stored in the storage unit 160, the content of "sorrow, bitterness, aching heart" is searched. Similarly, the words corresponding to the remaining words "patent, lost, child" are searched in the dictionary.

Afterwards, the parsed words and the corresponding translation data are stored in the storage 160 (S250).

Thus, when words and translation data are stored for one movie, the user can learn English words by outputting these contents again on the screen at any time.

5 is a flowchart provided to explain the process of learning English using the TV of the present invention. In this example, assume that the user has already watched a movie with subtitles in English and performed a subtitle storing process for it.

As shown in FIG. 5, the controller 170 checks whether a word learning key has been input through the input unit 120 (S510).

When the word learning key is input (S510-Y), the display information generation unit 185 outputs the program name stored in the storage unit 160 to the output unit 190. And the user selects the program name he wants to study among the screens thus output (S520).

When the user selects a program, the English word stored in the corresponding program output and interpretation information thereof are read from the storage unit 160 (S530).

The display information generation unit 185 then outputs the read information to the output unit 190 (S540).

6 is a diagram illustrating an example of a screen for outputting the English word and interpretation information. As shown in the figure, when the user selects a movie called OO in the program selection step, English words related to the subtitles from the 00 movie are listed. This allows the user to learn English words more interestingly and actively while recollecting the movies he watched.

On the other hand, as well as simply listing the English words as described above, it is also possible to apply the problem in the stored English words.

7 is a flowchart provided to explain a process of solving an English word problem using the TV of the present invention.

As illustrated in FIG. 7, the control unit 170 checks whether a problem solving key is input through the input unit 120 (S710).

When the word learning key is input (S710-Y), the display information generation unit 185 outputs the program name stored in the storage unit 160 to the output unit 190. And the user selects the program name he wants to study among the screens thus output (S720).

When the user selects a program, the English word stored in the corresponding program output and interpretation information thereof are read from the storage unit 160 (S730).

Afterwards, the display information generation unit 185 outputs the read information to the output unit 190 (S740). In this case, unlike in FIG. 5, the information is not simply listed, but is output in a problem solving manner.

8 is a diagram illustrating an example of such a problem solving screen. As shown in FIG. 8, the word extracted from the caption is submitted as a problem, and the interpretation information and the incorrect answer information are mixed and output in such a manner that the user finds the correct interpretation information. It is of course also possible to submit the interpretation as a problem.

Returning to FIG. 7 again, after outputting the screen like this, the user waits to select one of the multiple views (S750).

In this example, the correct answer is 1) bar, and when the user presses the numeric key 1, the correct answer is recognized (S760-Y), in which case the score is increased by one point (S770). Of course, in addition to increasing the score, it is also possible to increase the learning effect with various effects.

If the user asks whether or not to solve the problem, and selects to add (S780-Y), repeat steps S730 to S770, and if the user chooses to stop (S780-N), this learning process Ends.

In the present embodiment, the TV 100 is assumed as the display device, but this is merely an example for convenience of description. Therefore, all display devices that output images other than the TV may replace the TV 100. That is, a digital multimedia broadcasting (DMB) receiver, a navigation device, and a personal multimedia player (PMP), which are video devices, may be mentioned.

In addition, in the present exemplary embodiment, the output screen is described with reference to the English word learning screen in FIGS. 6 and 8, but this is only an example for convenience of explanation. Therefore, in addition to the screens shown in FIGS. 6 and 8, a method of outputting learning screens in various forms is possible.

In addition, the present embodiment has been described based on the "stopping-stemming algorithm", but this is also merely an example for convenience of description. Therefore, in addition to the above-described algorithm, any algorithm capable of extracting words can be used in various forms.

In addition, in the present embodiment, the algorithm based on the English subtitles has been described, but this is also merely an example for convenience of explanation. Therefore, in addition to English, any language that can extract dictionary information and words can be used. That is, it can be applied to Chinese, Japanese, Korean, etc. in addition to English.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

1 is a block diagram of a display device system according to an embodiment of the present invention;

2 is a flowchart provided to explain a control for storing information of a display apparatus according to an embodiment of the present invention;

3 is a diagram illustrating an example of parsing a word in caption information according to an embodiment of the present invention;

4 is a view showing an example of a screen displaying a caption, shown for explanation according to an embodiment of the present invention;

5 is a flow chart provided in the description of the control for displaying information according to an embodiment of the present invention;

6 is a diagram illustrating an embodiment of a screen displayed according to FIG. 5;

7 is a flowchart provided in a description of a control for displaying information according to another embodiment of the present invention, and

8 is a diagram illustrating an embodiment of a screen displayed according to FIG. 7.

Explanation of symbols on the main parts of the drawings

100: TV 110: broadcast receiver

120: input unit 130: caption decoding unit

140: word parsing unit 150: translation unit

160: storage unit 170: control unit

180: broadcast processing unit 185: display information generation unit

190: output unit

Claims (6)

Determining whether there is a caption storage key signal from an input unit; Decoding broadcasting subtitle information from a video signal when the key signal is present; Parsing a word from the decoded broadcast caption information; A translation step of extracting translation data of the parsed word; And And a storage step of storing the parsed word and the translation data. The method of claim 1, Parsing the word, A stop word processing step of removing unnecessary vocabulary; And A method of controlling a display device for learning English words, comprising: extracting a stem to identify a change of a mother and transform the stem into a basic type. The method of claim 1, The translation step, Retrieving words from the stored dictionary data that match the parsed word; And And extracting analysis data corresponding to the matched word when a matched word is searched for. Determining whether there is a word learning key signal from an input unit; Selecting a program name when the key signal is present; Extracting information about a word and a translation corresponding to the program name from a storage unit; And Displaying the content corresponding to the extracted information on the screen; English language learning display device control method comprising a. The method of claim 4, wherein Displaying one or more pieces of information, including information about the translation; Selecting from the plurality of pieces of information; And And determining whether the selection is information about the interpretation or other information, and storing the determination result in a storage unit. An input unit to receive an input from a user; A caption decoder to decode broadcast caption information from an image signal; A word parser that parses a word from the decoded broadcast caption information; A translation unit for extracting translation data of the extracted words; A storage unit for storing the extracted words and the translation data; And And a control unit controlling the caption decoder, the word extractor, the translation unit, and the storage unit according to a user's input input through the input unit.

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