JP5490618B2 - CONTENT REPRODUCTION DEVICE, CONTENT REPRODUCTION DEVICE CONTROL METHOD, CONTROL PROGRAM, AND RECORDING MEDIUM - Google Patents

Description

  The present invention relates to a content reproduction apparatus that reproduces content such as moving images, a control method for the content reproduction apparatus, a control program, and a recording medium.

  In recent years, learning systems that perform learning using a terminal device such as a personal computer have become widespread. In such a learning system, learning content such as images and voices is reproduced on a terminal device, and the user learns by viewing the content.

  According to the learning system as described above, there is an advantage that it is possible to take a lecture without going to the instructor, and to provide a lecture with the same contents to a large number of persons at remote locations. For this reason, various techniques for further improving the convenience of the learning system have been proposed.

  For example, in the following Patent Document 1, a user inputs a comment during playback of an electronic teaching material, and the input comment and the playback time of the electronic teaching material when the comment is input are stored in association with each other. Is described. In Patent Document 1, when the comment is displayed and the displayed comment is selected, the electronic teaching material is reproduced from the reproduction time associated with the comment, that is, the comment is used as a bookmark. It is described to review.

  Patent Document 2 below discloses a technology for attaching an electronic tag to learning content. Specifically, in Patent Document 2, when an input operation for pasting a sticky note is performed during the reproduction of the learning content, the user inputs character information to be written on the sticky note, It describes that the learning content reproduction time is stored in association with each other. Patent Document 2 describes that tag images including the character information are displayed as a list, and when the displayed tag is selected, the learning content is played from the playback time associated with the tag. ing. That is, in Patent Document 2, as in Patent Document 1, the tag is used as a bookmark.

JP 2007-150552 A (released on June 14, 2007) JP 2010-015042 A (published January 21, 2010)

  Here, in the learning system as described above, terms or the like that the user does not know may be used in the reproduced moving image or audio, and when such terms appear during learning, the user In order to understand the meaning of terms and the like, it is often examined using a dictionary or the like. However, the conventional technology as described above has a problem that convenience in performing a search using a dictionary or the like is not considered.

  For example, when a term is examined using a paper-based dictionary or an electronic dictionary while the learning content is being reproduced, the term and / or the result of the examination are shown by using the technique of Patent Document 1 or 2. The text can be stored in association with the learning content playback time.

  However, in order to store the examined term in the terminal device, it is necessary to input the term into the terminal device, and such processing is troublesome for the user. Patent Documents 1 and 2 use a comment as a bookmark for learning content. When one comment is selected from a list of comments displayed, the learning time is determined from the playback time associated with the comment. Content playback starts.

  For this reason, when the user wants to confirm the meaning of the term after selecting a comment and starting playback, the user needs to stop playing the learning content and check the dictionary again. There is.

  Note that such a problem is not limited to the terminal device used in the learning system, and is a problem that occurs in all content playback devices that play back content such as moving images, still images, or audio. This is because performing a search related to the content using an arbitrary database during the reproduction of the content is not limited to the learning content and exists.

  The present invention has been made in view of the above problems, and its purpose is to access search results by a keyword at the timing when a keyword search was performed in the past when the content is reproduced for the second time or later. It is an object of the present invention to provide a content reproduction apparatus and the like that facilitate the above.

  In order to solve the above problems, a content playback device of the present invention is a content playback device that plays back content, and searches the database with a keyword that is input when the device is playing back content, Generates history data in which search means for displaying the search result, position information indicating the reproduction position of the content when the search means performs search, and access information for accessing the search result are associated with each other. And a history data generating means.

  The content playback apparatus control method of the present invention is a content playback apparatus control method for playing back content in order to solve the above problems, and is input when the content playback apparatus is playing back content. A search step for searching the database with the keyword and displaying the search result, position information indicating the reproduction position of the content when the search is performed in the search step, and access information for accessing the search result And a history data generation step for generating history data in association with each other.

  According to the above configuration, the database is searched by the keyword input when the content device is reproducing the content, and the search result is displayed. Therefore, the user performs the search by the keyword during the reproduction of the content, The search result can be confirmed.

  Moreover, according to said structure, the log | history data which matched the positional information which shows the reproduction | regeneration position of the content at the time of searching, and the access information for accessing a search result are produced | generated.

  By using the history data, when the content is reproduced, it is possible to access the retrieval result by the keyword at the reproduction position where the retrieval by the keyword has been performed in the past.

  Therefore, it is possible to facilitate the search by the keyword during the reproduction of the content and to easily access the search result by the keyword when the content is reproduced for the second time or later.

  Further, the history data generating means generates history data including the keyword used for the search by the search means, and the content playback apparatus plays back the content playback position when the content playback apparatus is playing back the content. And the playback position indicated by the position information included in the history data generated by the history data generation means can be selected by the user of the own device in the history data in correspondence with the position information When the keyword displayed by the keyword display processing means and the keyword displayed by the keyword display processing means are selected, the search obtained using the access information associated with the selected keyword in the history data Search result display means for displaying the results is preferably provided.

  According to the above configuration, when the reproduction position of the content matches the reproduction position indicated by the position information included in the history data, the keyword associated with the position information is displayed. As a result, the user can recognize that a search was previously performed using the keyword.

  And according to said structure, when the displayed keyword is selected, the search result acquired using the access information matched with the keyword is displayed. That is, when the user wants to confirm the search result by the displayed keyword again, the user can receive the search result by an extremely simple operation of selecting the displayed keyword. Further, when it is determined that it is not necessary to reconfirm the search result based on the displayed keyword, the user can continue viewing the content as it is.

  Note that the retrieval result acquisition method depends on what information is the access information. For example, when the access information is information for specifying a database searched by a keyword, the search result can be acquired by performing a search again using the database using the keyword. For example, when the access information is information (address or the like) indicating the storage location of the search result, the search result can be acquired from the storage location specified by the information.

  The function of the search result display means can also be realized by the search means. That is, the search means may acquire the search result using the access information.

  The history data generating means preferably generates history data including the keyword used for the search by the search means as the access information.

  When the history data including the keyword used for the search is generated as in the above configuration, the search result can be accessed by searching the database using the keyword included in the history data.

  Further, when the keyword display processing means displays the keyword or when the search result display means displays the search result, the user selects a deletion object for deleting history data corresponding to the keyword. It is preferable to include a history data deleting means for displaying the data as possible.

  According to the above configuration, the deletion object for deleting the history data corresponding to the keyword is displayed. Therefore, the user can select the deletion object and delete the history data corresponding to the keyword so that the keyword is not displayed when the content is reproduced next time. This is useful, for example, when the user has already stored the search result based on the keyword.

  The content reproduction apparatus may be realized by a computer. In this case, a control program for realizing the content reproduction apparatus by a computer by causing the computer to operate as each unit of the content reproduction apparatus, and A computer-readable recording medium on which it is recorded also falls within the scope of the present invention.

  As described above, the content reproduction apparatus of the present invention searches the database with the keyword input when the own apparatus is reproducing the content, displays the search result, and the search means performs the search. And a history data generating unit that generates history data in which position information indicating the playback position of the content when the search is performed and access information for accessing the search result are associated with each other.

  In addition, as described above, the content playback apparatus control method of the present invention performs a database search using a keyword input when the content playback apparatus is playing back content, and displays a search result. And a history data generation step for generating history data in which position information indicating a reproduction position of the content when the search is performed in the search step and access information for accessing the search result are associated with each other. is there.

  Therefore, it is possible to facilitate the search by the keyword during the reproduction of the content and to easily access the search result by the keyword when the content is reproduced for the second time or later.

1, showing an embodiment of the present invention, is a block diagram illustrating a main configuration of an electronic learning device. FIG. It is a figure which shows an example of the log | history data which the said electronic learning apparatus stores. It is a figure which shows the other example of the said log | history data. It is a figure which shows the operation example of the said electronic learning apparatus, The figure (a) is before a dictionary selection, The figure (b) is the time of keyword search using the selected dictionary, The figure (c) is after keyword search execution. An operation example is shown. It is a figure which shows the example of operation | movement when the said electronic learning apparatus displays a keyword during reproduction | regeneration of a content, The figure (a) shows the example of a screen when not displaying the keyword, The figure (b) The example of a screen when a keyword is displayed is shown, and the figure (c) shows the example of a screen when the displayed keyword is selected. It is a figure which shows the example in which the said electronic learning apparatus displays a some keyword simultaneously. The electronic learning apparatus shows an example of a display screen for allowing a user to select whether or not to delete a record from history data. It is a flowchart which shows an example of the historical data generation process which the said electronic learning apparatus performs. It is a flowchart which shows an example of the keyword display process which the said electronic learning apparatus performs. It is a block diagram which shows the principal part structure of the electronic learning apparatus and server which are contained in the electronic learning system concerning one Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. Here, first, the configuration of the electronic learning apparatus according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing a main configuration of an electronic learning device (content reproduction device) 1.

  The electronic learning device 1 is a device that reproduces content, and includes an input unit 10, a display unit 11 that displays an image, a control unit 12, and a storage unit 13, as illustrated.

  The input unit 10 receives user input operations, and the user controls the operation of the electronic learning apparatus 1 via the input unit 10. Here, it is assumed that the input unit 10 is a so-called touch panel that detects an input operation on the display surface of the display unit 11 and receives the detected input operation. Of course, the input unit 10 only needs to be able to accept a user's input operation, and may be configured with an input key, a keyboard, or the like. Here, an example in which the electronic learning device 1 includes the input unit 10 is shown, but the input unit 10 may be a device separate from the electronic learning device 1.

  The display unit 11 displays an image according to the control of the control unit 12. For example, a liquid crystal display device, an EL display device, or the like can be applied as the display unit 11. Similarly to the input unit 10, the display unit 11 may be a separate device from the electronic learning device 1.

  The control unit 12 controls the operation of the electronic learning apparatus 1 in an integrated manner, and includes a reproduction processing unit 20, a search processing unit (search unit, search result display unit) 21, a history data generation unit (history data generation unit, A history data deleting means) 22 and a keyword display processing section (keyword display processing means) 23.

  The reproduction processing unit 20 performs processing for reproducing content. Specifically, the reproduction processing unit 20 reads content corresponding to the content of the input operation received by the input unit 10 from the storage unit 13 and causes the display unit 11 to display the content. Here, it is assumed that the playback processing unit 20 plays back moving image content. However, the playback processing unit 20 may perform slideshow display of content made up of still images or play back content made up of audio. . When the content to be reproduced includes sound, the reproduction processing unit 20 outputs the sound of the content from a speaker (not shown).

  The search processing unit 21 displays, as a search result, an image based on data detected by performing a database search with a keyword input when the reproduction processing unit 20 is reproducing content. Specifically, the search processing unit 21 displays a keyword input screen for inputting a keyword on the display unit 11. Then, the database is searched using the keyword accepted by the input unit 10 during display of the keyword input screen, and the search result is displayed on the display unit 11. Here, it is assumed that the database to be searched is dictionary data stored in the storage unit 13.

  The history data generation unit 22 generates history data indicating a history of keyword search. Specifically, the history data generation unit 22 accesses position information indicating the reproduction position of the content (reproduction position from the beginning of the content) when the keyword search is performed, and access for accessing the search result by the keyword. The history data is generated in association with the information and stored in the storage unit 13. Here, it is assumed that the reproduction time of content is used as the position information, and information indicating a database to be searched and a keyword used for the search are used as the access information.

  Of course, the position information is not limited to this example as long as it indicates the reproduction position of the content when the keyword search is performed. The access information is not limited to this example as long as it is information that can access the search result.

  The keyword display processing unit 23 displays the keyword used for the search on the display unit 11 at the timing when the keyword search was performed in the past during the reproduction of the content. Specifically, the keyword display processing unit 23 refers to the history data stored in the history data generation unit 22 and identifies the timing at which the keyword search was performed in the past and the keyword used for the search. Is displayed.

  Further, when the displayed keyword is selected, the keyword display processing unit 23 acquires a search result based on the keyword using the access information of the history data and displays it. Specifically, when the displayed keyword is selected, the keyword display processing unit 23 notifies the search processing unit 21 of the selected keyword and a database that has been searched using the keyword, and performs keyword search. Let it be done and display the results.

  The storage unit 13 stores various data used by the electronic learning device 1, and includes moving image data (content) 30, dictionary data (database) 31, and history data 32.

  The moving image data 30 is moving image data of content to be reproduced by the reproduction processing unit 20. That is, the reproduction processing unit 20 reads and reproduces the moving image data 30. Here, an example in which the moving image data 30 is stored in the storage unit 13 will be described. However, the moving image data 30 only needs to be stored so that the reproduction processing unit 20 can reproduce it. It may be stored in a connected external storage device. For example, it may be stored in a device such as a server that is communicably connected to the electronic learning device 1. In this case, the moving image data 30 may be downloaded to the electronic learning device 1 and played back, or streaming playback may be performed without downloading.

  The dictionary data 31 is a database used by the search processing unit 21 for keyword search. Here, it is assumed that a database of three dictionaries, a national language dictionary, an English-Japanese dictionary, and a Japanese-English dictionary, is stored as the dictionary data 31. ing. In these databases, headwords (words to be searched for keywords) are associated with data indicating their meanings, etc., and search is performed with keywords that match the headwords, so that the headwords are supported. It is possible to access data indicating the meaning or the like of the attached headword.

  As described above, the history data 32 is data generated and stored by the history data generation unit 22, and the access time for accessing the content reproduction time when the keyword search is performed and the search result by the keyword. Data associated with information.

[History data 32]
The history data 32 may be data as shown in FIG. FIG. 2 is a diagram illustrating an example of the history data 32. The illustrated history data 32 is generated for the content “training video 1-1”, and is data in which a number, a reproduction time, a usage dictionary, and a keyword are associated with each other.

  The number is a number for managing a combination of a reproduction time, a use dictionary, and a keyword included in the history data 32. This number is assigned when the history data generation unit 22 stores the reproduction time, the used dictionary, and the keyword.

  The reproduction time indicates the reproduction time of the content when the keyword search is performed. As for the reproduction time, the history data generation unit 22 acquires and stores the reproduction time of the content when the keyword search is performed.

  The use dictionary indicates a dictionary used for keyword search. The usage dictionary is stored by specifying the dictionary used by the history data generation unit 22 for keyword search.

  The keyword indicates a keyword used for keyword search. The keyword is acquired and stored by the history data generation unit 22 when a keyword search is performed.

  By using such history data 32, when the “training video 1-1” is reproduced, the keyword used for the keyword search can be displayed at the timing when the keyword search was performed in the past. When the displayed keyword is selected, the search by the keyword can be executed again and the search result can be displayed.

  The history data 32 may be a keyword that can be displayed at the timing when a keyword search has been performed in the past, and when the displayed keyword is selected, a search result based on the keyword can be displayed. Well, it is not limited to the example of FIG.

  For example, history data 32 as shown in FIG. 3 may be used. FIG. 3 is a diagram illustrating another example of the history data 32. The history data 32 in FIG. 3 is different from the history data 32 in FIG. 2 in that dictionary ID and keyword ID data are added.

  The dictionary ID specifies the dictionary used for keyword search, and the keyword ID specifies the position where the keyword is stored in the dictionary used for search. That is, here, it is assumed that a keyword ID is assigned in advance to a headword (word to be searched for a keyword) included in each dictionary. Then, it is assumed that when a keyword search is performed and the keyword used in the search matches the headword, history data 32 including the keyword ID assigned to the headword is generated.

  According to this configuration, each headword included in the dictionary is matched with the keyword, and the storage position of the headword that matches the keyword is specified without performing the process of searching for the headword that matches the keyword. The data indicating the meaning of the headword, that is, the search result can be accessed. Therefore, it is possible to shorten the time until the search result by the keyword is reached as compared with the case of performing the search again by the keyword.

  As described above, FIG. 2 and FIG. 3 show an example in which a keyword and a used dictionary or a dictionary ID and a keyword ID are included in the history data 32 as information for accessing a search result by keyword. However, the history data 32 only needs to include the reproduction time and access information for accessing the search result by the keyword, and is not limited to the above example. For example, information (address or the like) indicating the storage location of the search result may be included as access information.

[Operation Example of Electronic Learning Device 1 (Generation and Recording of History Data)]
Next, an operation example of the electronic learning device 1 will be described with reference to FIG. 4A and 4B are diagrams showing an operation example of the electronic learning device 1. FIG. 4A shows a dictionary before selection, FIG. 4B shows a keyword search using the selected dictionary, and FIG. 4C shows a keyword. An example of operation after execution of a search is shown.

  In the example of FIG. 6A, an image of content is displayed in the image display area A1, and keys K1 to K3 are displayed next to the image display area A1. The keys K1 to K3 are so-called software keys, and the electronic learning device 1 is caused to execute processing pre-assigned to the keys K1 to K3 by performing a touch operation on the keys K1 to K3 with the touch pen P or a finger. be able to.

  Specifically, the key K1 is a key for calling a Japanese language dictionary. When a touch operation is performed on the key K1, the electronic learning device 1 displays a keyword search screen using the national language dictionary. Thus, when a term whose meaning is to be confirmed appears during learning, the user can easily search for the term.

  The key K2 is a key for calling an English-Japanese dictionary. When a touch operation is performed on the key K2, the electronic learning device 1 displays a keyword search screen using the English-Japanese dictionary. As a result, the user can easily search for a Japanese translation of English when the user wants to confirm the meaning during learning.

  The key K3 is a key for calling up a Japanese-English dictionary. When a touch operation is performed on the key K3, the electronic learning device 1 displays a keyword search screen using the Japanese-English dictionary. Thereby, when the term which wants to translate into English comes out during the learning, the user can easily translate the term into English.

  Here, when a touch operation is performed on the key K1, the electronic learning device 1 pauses the reproduction of the content and displays a screen as shown in FIG. In the example shown in the figure, the name of a dictionary used for keyword search (◯ × Japanese dictionary) is displayed, and a keyword display area A2 and a keyboard K4 are displayed.

  That is, here, it is assumed that characters constituting a keyword (a term to be examined in the dictionary) used for the search are input by selecting characters included in the keyboard K4 with the touch pen P or the like. The entered characters are displayed in the keyword display area A2, and by selecting “OK” on the keyboard K4, a search is performed using the entered character string as a keyword.

  In FIG. 4 (b), it is assumed that “Compliance” is entered and determined, whereby the display as shown in FIG. 4 (c) is performed. In the example shown in the figure, the name of the dictionary used for the keyword search is displayed, and the result of searching “COMPLEANS” in the dictionary is displayed. In addition, a key K5 for ending display of the dictionary search result and returning to the reproduction of the content is also displayed.

  Here, when such a keyword search is performed, the electronic learning device 1 determines the content reproduction time when the keyword search is performed, the dictionary that is the target of the keyword search, the keywords used for the search, and the like. Is generated and stored.

  Then, when the electronic learning device 1 next reproduces the content, the electronic learning device 1 refers to the history data 32 and displays the keyword used for the search at the timing when the keyword search was performed in the past. An operation example when displaying a keyword will be described below.

[Operation Example of Electronic Learning Device 1 (Keyword Display)]
Next, an operation example when the electronic learning device 1 displays a keyword based on the history data 32 will be described with reference to FIG. FIG. 5 is a diagram illustrating an example of an operation when the electronic learning device 1 displays a keyword during content reproduction. FIG. 5A illustrates an example of a screen when no keyword is displayed. FIG. 4B shows an example of a screen when a keyword is displayed, and FIG. 4C shows an example of a screen when the displayed keyword is selected.

  As shown in FIG. 4A, when no keyword is displayed, the content image is displayed in the image display area A1 and keys K1 to K3 are displayed as in the example of FIG.

  Here, the electronic learning device 1 monitors whether the reproduction time of the content matches the reproduction time stored in the history data 32. When it is confirmed that the content matches, the electronic learning device 1 Display associated keywords.

  For example, when the reproduction time associated with the keyword “compliance” is 13 minutes 45 seconds in the example of FIG. 4C, “compliance” is displayed as shown in FIG. 5B. The key K6 is displayed.

  When the displayed key K6 is selected with the touch pen P or the finger, the electronic learning device 1 displays the result of the search using the keyword “compliance” as shown in FIG. 5C.

  As described above, the electronic learning device 1 displays the keyword used for the search at the timing when the keyword search has been performed previously. Since this keyword was previously examined by the user using the dictionary data 31, if the user memorizes the meaning or the like at that time, there is no need to display the search result by the keyword again. It is desirable to continue the playback. On the other hand, the user may have forgotten the results of previous searches.

  Therefore, when the displayed keyword is not selected, the electronic learning device 1 does not display the result of the search using the keyword, and displays the result of the search using the keyword when the displayed keyword is selected.

  Thereby, when it is determined that the display of the search result is unnecessary, the user can continue the reproduction of the content as it is. Further, since only the keywords are displayed, content viewing is not hindered. Then, when it is desired to confirm the search result, it can be confirmed without taking the trouble of inputting characters as shown in FIG.

  The search results may be displayed instead of displaying the keywords. However, if the search results are long, it is considered that the viewing of the content is hindered, and the search results by the keywords are remembered by the user. Since it is difficult to confirm whether or not it has been, it is preferable to display a keyword and display a search result when the keyword is selected.

  Moreover, the display of a keyword should just be an aspect which a user can recognize a keyword, and is not restricted to the example of FIG.5 (b). For example, the keyword may be displayed so as to be superimposed on the content image, such as a caption super.

  Further, when a plurality of keywords are recorded at the same playback time or near playback time, a plurality of keywords may be displayed simultaneously as in the example of FIG. FIG. 6 is a diagram illustrating an example in which a plurality of keywords are displayed simultaneously.

  In the example of FIG. 6, the keyword “CSR” is displayed in addition to “compliance”. The user can select any of these keywords, and by selecting the keyword, the search result by the keyword can be confirmed.

  It is also conceivable that a user who selects a displayed keyword and confirms a search result based on the keyword determines that it is not necessary to display the keyword the next time the same content is reproduced. In other words, since the user's knowledge is fixed by repeatedly reproducing the content, it is preferable that the keyword to be displayed can be changed according to the degree of knowledge fixing.

  For example, a screen as shown in FIG. 7 may be displayed to allow the user to select whether or not to delete the record from the history data 32. FIG. 7 shows an example of a display screen for allowing the user to select whether or not to delete the record from the history data 32.

  In the example of FIG. 7, the key K5 displayed as “Close” is displayed and the key (deletion object) K8 displayed as “Delete” is displayed as in the example of FIG. 5B. Yes. That is, the user can delete the “compliance” data from the history data 32 by selecting the key K8. Thus, the next time the same content is reproduced, the “compliance” keyword is not displayed.

  Note that the timing for displaying the key K8 for deleting history data is not limited to the above example, and the key K8 may be displayed when a keyword is displayed, for example. Thereby, it is possible to delete the keyword history data without checking the search result.

  If the displayed keyword is not selected, it is considered that the user determines that the display of the search result of the keyword is unnecessary. Therefore, the history data 32 of the keyword that has not been selected is deleted. Also good.

[History data generation processing]
Next, history data generation processing in which the electronic learning device 1 generates the history data 32 will be described with reference to FIG. FIG. 8 is a flowchart illustrating an example of the history data generation process. The history data generation process is a process performed during content reproduction.

  The reproduction processing unit 20 that has confirmed that there has been a content reproduction instruction from the input operation on the input unit 10 reads the content instructed to reproduce from the moving image data 30 in the storage unit 13 and starts reproduction (S1). That is, it is assumed that the content to be reproduced here is a moving image content.

  Here, the search processing unit 21 waits for selection of a dictionary (S2), and when it is confirmed that a dictionary has been selected (YES in S2), the reproduction processing unit 20 pauses the reproduction of content. The process proceeds to (S3) and S4. On the other hand, if it is not confirmed that the dictionary is selected (NO in S2), the process proceeds to S10.

  In S4, the search processing unit 21 displays a keyword input screen on the display unit 11 (S4) and waits for a search to be executed (S5). Note that, for example, since characters to be input change according to the dictionary used for the search, such as English-Japanese dictionary and Japanese-English dictionary, it is preferable to display the keyword input screen according to the dictionary.

  When a keyword is input and a search execution instruction is input, the search processing unit 21 searches the keyword in the dictionary selected in S2 and displays the search result on the display unit 11 (S6). In addition, the search processing unit 21 notifies the history data generation unit 22 of the keyword and dictionary used for the search.

  Upon receiving the keyword and dictionary notification, the history data generation unit 22 acquires the current playback time of the content from the playback processing unit 20, that is, the playback time when paused in S3, the acquired playback time, and the search processing unit. The history data 32 is generated by associating the keyword and the dictionary notified from 21 and stored in the storage unit 13 (S7).

  On the other hand, the search processing unit 21 displaying the search result in S6 confirms whether or not to end the display of the search result (S8). Here, when it is confirmed that the display of the search result is finished (YES in S8), the search processing unit 21 instructs the reproduction processing unit 20 to resume the reproduction of the content. As a result, the display of the search result is completed, and the image of the content is displayed on the display unit 11 instead (S9).

  The reproduction processing unit 20 that has resumed the reproduction confirms whether or not to end the reproduction of the moving image (S10). If it is confirmed that the reproduction is not terminated (NO in S10), the process returns to S2. On the other hand, when it is confirmed that the moving image reproduction is to be ended (YES in S10), the process proceeds to S11, and the reproduction processing unit 20 ends the reproduction of the moving image, thereby ending the history data generation process.

  In S10, the reproduction processing unit 20 determines that the moving image reproduction is to be terminated when reproduction is performed up to the end time of the content being reproduced, or when the input unit 10 accepts an input operation for ending reproduction.

  The playback processing unit 20 may resume playback from the position where the playback of the content is stopped, but before the stopped playback position (playback position when the input operation for starting the search is performed) (content Playback may be resumed from the playback position near the top of the. This is because there is a difference between the timing that triggers the search (for example, when an unknown term is used) and the timing when the user performs an input operation to start the search. In other words, by restarting the content playback from before the content playback position that triggered the search, the user can recognize the search result scene (for example, an unknown term It is possible to check the scenes where the is used, and to deepen the understanding of the content.

[Keyword display processing]
Next, a keyword display process in which the electronic learning device 1 displays a keyword will be described with reference to FIG. FIG. 9 is a flowchart illustrating an example of the keyword display process. Similar to the history data generation process, the keyword display process is also a process performed during content reproduction.

  The reproduction processing unit 20 that has confirmed that there has been a content reproduction instruction from the input operation on the input unit 10 reads the content instructed to reproduce from the moving image data 30 in the storage unit 13 and starts reproduction (S20).

  When the reproduction of the content is started, the keyword display processing unit 23 refers to the history data 32 to determine whether there is a match between the current reproduction time of the content and the reproduction time stored in the history data 32. Confirm (S21).

  If no match is confirmed (NO in S21), the process proceeds to S32. On the other hand, if a match is confirmed (YES in S21), the keyword display processing unit 23 specifies a keyword associated with the playback time that matches the current video data playback time in the history data 32. To do. Then, the keyword display processing unit 23 displays the identified keyword on the display unit 11 (S22). Then, the keyword display processing unit 23 checks whether or not the displayed keyword is selected (S23).

  Here, when the selection of the keyword is not confirmed (NO in S23), the keyword display processing unit 23 confirms whether or not a predetermined time has elapsed after the keyword is displayed (S24).

  If it is confirmed that the predetermined time has passed (YES in S24), the keyword display processing unit 23 ends the keyword display (S25), and proceeds to the process of S32. On the other hand, if it is not confirmed that the fixed time has passed (NO in S24), the process returns to S23.

  Here, when it is confirmed in S23 that a keyword has been selected (YES in S23), the keyword display processing unit 23 instructs the reproduction processing unit 20 to pause reproduction (S26). In addition, the keyword display processing unit 23 notifies the search processing unit 21 of the selected keyword and information indicating a dictionary searched with the keyword. Receiving this notification, the search processing unit 21 searches the dictionary notified by the notified keyword, and displays the result on the display unit 11 (S27).

  The search processing unit 21 that has displayed the search result confirms whether or not to end the display of the search result (S28). If it is confirmed that display of the search result is to be ended (YES in S28), the search processing unit 21 determines whether to delete the record of the history data 32 corresponding to the keyword displaying the search result. (S29).

  For example, if the search result is displayed on the screen as shown in FIG. 7 in S27, it is determined that the display of the search result is ended when the key K8 is selected (YES in S28) and recorded. Is determined to be deleted (YES in S29). On the other hand, when the key K5 is selected in the screen example of FIG. 7, it is determined that the display of the search result is finished (YES in S28), and it is determined not to delete the record (NO in S29).

  If it is confirmed in S29 that the recording is to be deleted (YES in S29), the search processing unit 21 notifies the history data generation unit 22 to that effect. Upon receiving this notification, the history data generation unit 22 deletes the corresponding record from the history data 32. For example, when the key K5 is selected in the screen example of FIG. 7, the history data corresponding to the keyword “compliance” is deleted.

  In S31, the search processing unit 21 instructs the reproduction processing unit 20 to resume content reproduction. As a result, the display of the search result ends, and the content image is displayed instead.

  The reproduction processing unit 20 that has resumed the reproduction of content confirms whether or not to end the reproduction of the moving image (S32). If it is confirmed that the reproduction is not completed (NO in S32), the process returns to S21. On the other hand, if it is confirmed that the reproduction of the content is to be ended (YES in S32), the process proceeds to S33, and the reproduction processing unit 20 ends the reproduction of the content, thereby ending the keyword display process.

  In the above example, when the current playback time of the content matches the playback time stored in the history data 32, the keyword associated with the playback time is displayed. The keyword may be displayed before the reproduction time of the history data 32.

  For example, if the keyword display timing is shifted before the content playback position when the input operation for starting the search is accepted, the content playback position that triggered the search is actually This is preferable because the deviation from the reproduction position when the search is performed can be reduced.

[Modification of dictionary data storage destination]
In the above description, the example in which the dictionary data 31 is stored in the storage unit 13 included in the electronic learning device 1 has been described. However, the electronic learning device 1 can present a search result based on the dictionary data 31 to the user. If so, the dictionary data 31 may be stored in another device. Further, the search using the dictionary data 31 may be performed by a device other than the electronic learning device 1 and the electronic learning device 1 may acquire the search result.

  Here, an example of an electronic learning system that causes another device to execute a keyword search will be described with reference to FIG. FIG. 10 is a block diagram showing a main configuration of the electronic learning device (content reproduction device) 40 and the server 50 included in the electronic learning system 60. In addition, about the structure similar to the electronic learning apparatus 1 of FIG. 1, the same reference number is attached | subjected and the description is abbreviate | omitted.

  Compared to the electronic learning device 1 of FIG. 1, the electronic learning device 40 includes a communication unit 14, the search processing unit 21 is replaced with a search processing unit (search means, search result display unit) 24, The difference is that the dictionary data 31 is not stored in the storage unit 13.

  The communication unit 14 is for the electronic learning device 40 to communicate with other devices. Here, it is assumed that the electronic learning device 40 is connected to the communication network from the communication unit 14 and communicates with the server 50 via the communication network.

  The search processing unit 24 causes an external device (here, the server 50) to execute a search using a keyword and displays the result. Specifically, the search processing unit 24 displays a keyword input screen for inputting a keyword on the display unit 11. Then, the keyword input by the input unit 10 during the display of the keyword input screen, the information for specifying the database to be searched with the keyword, and the search execution instruction by the keyword are externally transmitted via the communication unit 14. Send to device. Then, the search result is received from an external device and displayed on the display unit 11.

  The server 50 is a device that performs a keyword search in accordance with an instruction from the electronic learning device 40 and transmits the result to the electronic learning device 40. As illustrated, the server 50 includes a server communication unit 51, a server control unit 52, and a server storage unit 53.

  The server communication unit 51 is for the server 50 to communicate with other devices. Here, it is assumed that the server communication unit 51 communicates with the electronic learning device 40 via a communication network.

  The server control unit 52 controls the operation of the server 50 in an integrated manner, and the server control unit 52 includes a server search processing unit 54. The server search processing unit 54 performs keyword search according to instructions from the electronic learning device 40.

  The server storage unit 53 stores various data used by the server 50, and the server storage unit 53 includes dictionary data 31.

  According to the electronic learning system 60 described above, when the user of the electronic learning device 40 performs an input operation for performing a keyword search during the reproduction of content, the search processing unit 24 inputs a keyword for causing the keyword to be input. The screen is displayed on the display unit 11.

  When the user inputs a keyword and performs an input operation to execute the search, the search processing unit 24 uses the input keyword, information for specifying a dictionary to be searched with the keyword, and the keyword. A search execution instruction is transmitted to the server 50 via the communication unit 14.

  In the server 50 that has received these information and instructions, the server search processing unit 54 specifies the dictionary specified by the received information from the dictionary data 31 and searches for the keyword received from the electronic learning device 40 using the specified dictionary. I do. Then, the search result is transmitted to the electronic learning device 40 via the server communication unit 51.

  In the electronic learning device 40 that has received the search result, the search result received by the search processing unit 24 is displayed on the display unit 11 so that the user can recognize the search result.

[Modification of configuration for displaying search results]
In the above description, an example has been described in which, when a keyword displayed during content reproduction is selected, a search result is displayed by performing a search again using the selected keyword. However, the electronic learning device 1 or 40 only needs to be able to display the search result using the selected keyword when the keyword displayed at the time of content reproduction is selected, and is limited to the above example. Absent.

  For example, the search result may be included in the history data 32. In this case, when a keyword is selected, the search result can be acquired from the history data 32, so that the search result can be displayed without performing a search again. Further, for example, the search result may be stored separately from the history data 32, and information for accessing the search result (for example, the storage address of the search result) may be included in the history data 32.

  In particular, as shown in the example of FIG. 10, when searching in an external database, it is expected that re-searching will take time. Therefore, the search result may be stored in the electronic learning device 40. preferable.

[Search target database]
In the above description, an example in which a keyword is searched in any one of three databases, a national language dictionary, an English-Japanese dictionary, and a Japanese-English dictionary, has been described, but the database used for the search is not limited to these examples. For example, a database such as an encyclopedia or dictionary may be used, or a dictionary database of foreign languages other than English may be used. Further, for example, a search may be performed using a database provided on a network such as the Internet.

  In addition, when performing a search in a database on a network, it is conceivable to perform a search by adding a keyword or a search condition to obtain a desired search result.

  When such a search is performed, information (for example, an address) for accessing the final search result may be stored in the history data 32. In addition, the search condition may be stored in the history data 32. In this case, the search is performed again using the stored search condition.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims. That is, embodiments obtained by combining technical means appropriately modified within the scope of the claims are also included in the technical scope of the present invention.

[Configuration example by software]
Finally, each block of the electronic learning devices 1 and 40, in particular, the control unit 12 may be realized in hardware by a logic circuit formed on an integrated circuit (IC chip), or may be a CPU (Central Processing Unit). You may implement | achieve by software using.

  In the latter case, the electronic learning devices 1 and 40 include a CPU that executes instructions of a program that realizes each function, a ROM (Read Only Memory) that stores the program, a RAM (Random Access Memory) that expands the program, and the above A storage device (recording medium) such as a memory for storing programs and various data is provided. The object of the present invention is a record in which the program code (execution format program, intermediate code program, source program) of the control program of the electronic learning devices 1 and 40, which is software that realizes the functions described above, is recorded so as to be readable by a computer. This can also be achieved by supplying a medium to the electronic learning apparatuses 1 and 40 and reading and executing the program code recorded on the recording medium by the computer (or CPU or MPU).

  Examples of the recording medium include tapes such as magnetic tapes and cassette tapes, magnetic disks such as floppy (registered trademark) disks / hard disks, and disks including optical disks such as CD-ROM / MO / MD / DVD / CD-R. IC cards (including memory cards) / optical cards, semiconductor memories such as mask ROM / EPROM / EEPROM / flash ROM, PLD (Programmable logic device), FPGA (Field Programmable Gate Array), etc. Logic circuits can be used.

  The electronic learning devices 1 and 40 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited as long as it can transmit the program code. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication network, and the like can be used. The transmission medium constituting the communication network may be any medium that can transmit the program code, and is not limited to a specific configuration or type. For example, even with wired lines such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL (Asymmetric Digital Subscriber Line) line, infrared rays such as IrDA and remote control, Bluetooth (registered trademark), IEEE 802.11 wireless, HDR ( It can also be used by radio such as High Data Rate (NFC), Near Field Communication (NFC), Digital Living Network Alliance (DLNA), mobile phone network, satellite line, and digital terrestrial network.

  According to the present invention, when content is reproduced, a keyword searched in the past can be presented to the user, and re-search by the keyword can be facilitated. Therefore, not only learning content but also various contents can be reproduced. It can be applied to the device.

1, 40 Electronic learning device (content playback device)
21, 24 Search processing unit (search means, search result display means)
22 History data generation unit (history data generation means, history data deletion means)
23 Keyword display processing unit (keyword display processing means)
30 Movie data (content)
31 Dictionary data (database)
32 History data K8 key (object for deletion)

Claims (8)

A content playback device for playing back content,
A search means for performing a database search with a keyword input when the device is playing back content, and displaying the search results;
History data generating means for generating history data associating position information indicating a reproduction position of the content when the search means performs a search with access information for accessing the search result ;
To access the search result corresponding to the access information associated with the position information at the playback position corresponding to the position information included in the history data when the device reproduces the content for the second time or later. And a display processing means for displaying an object to be operated . The history data generation means generates history data including the keyword used for the search by the search means,
The display processing means, when the own device is reproducing the second or later the content, the reproduction position of the content, the playback position indicated by the position information included in the history data which the history data generating means has generated When the two match, the keyword associated with the position information in the history data is displayed so that the user of the device can select it ,
When the keyword is above Symbol Display processing means and display is selected, in the history data, the search result display means for displaying the search results obtained by using the access information associated with the keyword selected content playback apparatus according to claim 1, characterized in that it comprises a. The history data generation means generates history data including the keyword used for the search by the search means as the access information ,
3. The keyword included in the history data is used for at least one of re-searching the database using the keyword and reading a search result associated with the keyword. The content reproduction apparatus described in 1. When the upper Symbol Display processing means and displaying the keyword or the search when the result display means displaying the search results, the deletion object to delete the history data corresponding to the keyword user selectable with a history data deletion means for displaying,
The history data to be deleted when the deletion object is selected is history data including position information used when displaying the keyword and access information associated with the position information. The content reproduction apparatus according to claim 2, wherein The display processing means, when the device reproduces the content for the second time or later, at the timing at which the position information indicated by the position information included in the history data reaches or before the timing, 5. The content reproduction apparatus according to claim 1, wherein an object to be operated to access the search result corresponding to the access information associated with the content information is displayed. A method for controlling a content playback apparatus for playing back content, comprising:
A search step of searching the database with the keyword input when the content playback device is playing back content, and displaying the search results;
A history data generation step for generating history data in which position information indicating a reproduction position of the content when the search is performed in the search step and access information for accessing the search result is associated ;
When the content playback device plays back the content for the second time or later, the search result corresponding to the access information associated with the position information is accessed at the playback position corresponding to the position information included in the history data. And a step of displaying a target to be operated to perform a control method for the content reproduction apparatus. A control program for operating the content reproduction apparatus according to any one of claims 1 to 5 , wherein the control program causes a computer to function as each of the means. A computer-readable recording medium on which the control program according to claim 7 is recorded.

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