JP2009217867A - Content reproduction device, content evaluating method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a content reproduction device which analyzes content stored in a terminal and prepares a list of the content suited to the user's preference. <P>SOLUTION: The content reproduction device 100 includes: a music reproducing section 50 to read music data from a music data memory 40 storing the content, such as music data and to reproduce it; an operation history DB 64 to store the identification information of the music data and the evaluation points of the music data in association with each other; a history use section 62 to update the evaluation points corresponding to the reproduced music data by extracting the information relevant to the music data from the reproduced music data and providing the evaluation points obtained by digitizing the relevant information; and a play list display tool 70 to display the list of the music data based on the evaluation points on the display 11. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a content reproduction apparatus, a content evaluation method, and a program, and more particularly, to a content reproduction apparatus, a content evaluation method, and a program for reproducing and evaluating content such as music data.

  2. Description of the Related Art In recent years, terminal devices represented by mobile phones and the like have been diversified in function, and devices having a function of storing content such as music data and reading and reproducing the content are known.

  Patent Document 1 describes a content reproduction apparatus that sequentially reproduces content such as traffic information acquired via a broadcast network or a communication network and content such as music stored in advance while automatically switching. Yes. In this content reproduction apparatus, content such as music is automatically selected and sequentially reproduced so that the user does not get bored.

  Patent Document 2 describes a content playback device that selects and plays back content such as music based on a playback history that takes into account the number of times of playback of content such as music, time, and playback location. In this content reproduction apparatus, for example, a reproduction list is generated in descending order of the number of reproductions, and based on the list, content that matches the user's preference is selected and reproduced.

JP 2005-276400 A JP 2005-202453 A

  In the technique described in Patent Document 1, content such as traffic information that is different from content such as music is acquired from a server, and then both content are automatically switched. For this reason, the server and the terminal device need to be connected via a communication line. Therefore, there is a problem that the terminal device cannot be used when it is offline.

  In the technique described in Patent Document 2, the above list is created based on the reproduction history. For example, in order to specify the reproduction place, cooperation with the server is necessary. In addition, it is difficult to create a list that suits the user's preference only by considering the number of times of content playback, time, and playback location.

  An object of the present invention is to provide a content reproduction device, a content evaluation method, and a program that can analyze a content stored in a terminal device and generate a list that matches a user's preference.

In order to achieve the above object, the present invention provides a content playback unit that reads and plays back content from a storage device that stores the content;
A storage device that stores content identification information and content evaluation points in association with each other;
Relevant information related to the content is extracted from the reproduced content, and a storage device that stores evaluation points corresponding to the relevant information is referred to. A content analysis unit that updates evaluation points corresponding to the content;
There is provided a content reproduction device comprising: a display control unit that displays content on a display device using a display method based on the evaluation points.

The present invention is also a content evaluation method in a terminal device having a computer,
A computer reading and reproducing the content from a storage device storing the content;
A step in which a computer stores content identification information and content evaluation points in association with each other;
The computer extracts the related information related to the content from the reproduced content, refers to a storage device that stores the evaluation point corresponding to each related information, and gives an evaluation point that quantifies the related information, Updating an evaluation point corresponding to the reproduced content;
And a step of displaying the content on a display device by using a display method based on the evaluation point.

Furthermore, the present invention is a program for a terminal device having a computer,
A process of reading the content from a storage device for storing the content and reproducing the content;
A process of associating and storing content identification information and content evaluation points;
Relevant information related to the content is extracted from the reproduced content, and a storage device that stores evaluation points corresponding to the relevant information is referred to. Update the evaluation points corresponding to the content;
And a process for displaying content on a display device using a display method based on the evaluation points.

  According to the content reproduction apparatus, the content evaluation method, and the program of the present invention, the evaluation points obtained by digitizing related information related to the content are updated when the content is reproduced, and the display method based on the updated evaluation points Use to display content. As a result, it is possible to analyze the content only with the content reproduction device and display a list of content that matches the user's preference based on the evaluation points.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing a configuration of a content reproduction apparatus according to an embodiment of the present invention. The content reproduction apparatus 100 is a portable apparatus typified by, for example, a mobile phone, and has various functions such as a communication function that enables Internet connection and a content reproduction function that reproduces content, without being limited to a telephone call. . Here, examples of the content include music data and various image data.

  The content reproduction apparatus 100 is, for example, a foldable type, and an upper housing 10 and a lower housing 20 are coupled to each other by a hinge so as to be rotatable. The upper housing 10 has a display unit 11 such as an LCD on the surface thereof. The display unit 11 displays various image data and a playlist of music data (see FIG. 4). The lower housing 20 has a numeric keypad 21 and a center key 22 on the surface thereof. The user performs various operations using these keys.

  FIG. 2 is a block diagram illustrating functions of the content reproduction apparatus. Here, a function of generating a playlist that operates in cooperation with the content reproduction function among various functions of the content reproduction apparatus 100 will be described. The content is music data stored in advance in the apparatus. The content reproduction apparatus 100 includes an instruction input unit 30, a music data storage unit 40, a music reproduction unit 50, a music analysis engine 60, a playlist display tool 70, and the display unit 11.

  The instruction input unit 30 has a function of generating an instruction signal in accordance with the operation of the numeric keypad 21 and the center key 22 by the user and transferring the instruction signal to the music reproducing unit 50 and the music analysis engine 60. The music data storage unit 40 stores music data such as music. The music reproduction unit 50 has a function of receiving an instruction signal from the instruction input unit 30, reading out the music data from the music data storage unit 40 and reproducing it, and delivering the music data to the music analysis engine 60.

  The music analysis engine 60 has a function of receiving the instruction signal from the instruction input unit 30 and analyzing the music data delivered from the music reproducing unit 50, and includes a behavior control unit 61, a history utilization unit 62, a rule A DB 63 and an operation history DB 64 are provided. The rule DB 63 stores rules that specify whether or not music data should be analyzed. When the action control unit 61 receives the instruction signal, the behavior control unit 61 refers to the rule DB 63, generates an activation signal as to whether to activate the history utilization unit 62 according to the rule, and receives the activation signal at the history utilization unit 62. Has a function to pass.

  The history utilization unit 62 is activated in response to the activation signal, extracts related information (described later) related to the music data from the music data delivered from the music playback unit 50, and quantifies the related information. Calculate evaluation points. The evaluation point reflects the preference of the user, and is set to music data that the user feels is more preferable as the value is larger. The evaluation point is a value from 0 to 100, for example.

  The operation history DB 64 stores identification information of music data and evaluation points of music data in association with each other. When the history utilization unit 62 receives the music data reproduced for the first time by the content reproduction apparatus 100, the history utilization unit 62 extracts the identification information and the related information of the music data, and evaluates the identification information and the related information as numerical values. The points are stored in the operation history DB 64. Here, when the same music data is reproduced thereafter, the history utilization unit 62 calculates evaluation points, and gives the evaluation points to the operation history DB 64, thereby updating the previous evaluation points.

  Furthermore, the history utilization unit 62 generates data for creating a playlist including at least evaluation points, and passes the data to the playlist display tool 70. The playlist display tool 70 controls the display unit 11 to display the playlist based on the data for creating the playlist passed from the history utilization unit 62.

  Here, related information regarding music data will be described. The related information includes, for example, music information including an artist name, a title (song name), and the like, and the reproduction date / time and the number of times of reproduction. Note that the history utilization unit 62 extracts not only the time but also the season, a specific day and period (for example, Christmas, one week before Christmas, etc.) as related information from the reproduction date and time.

  Next, weighting when the history utilization unit 62 digitizes related information will be described. As an example, the weighting may be set in advance for each season in which the music is played and for each specific day or period. For example, weighting may be set so that a high evaluation point is given to Christmas or music data reproduced in the previous week including Christmas.

  That is, in the music data having the related information to be weighted, the evaluation points change according to the season and a specific day or period. The music data in which the evaluation points change may be registered in advance, or the history utilization unit 62 may automatically determine and set from the music name. For example, if the word “rain” (keyword) is included in a song name of certain song data, weighting may be set so that the evaluation point is higher during the rainy season. These settings are stored in advance in the storage device.

  Furthermore, music whose evaluation points change from music data that is played back in a certain season or period, or music data that is played at a relatively high frequency compared to other seasons or periods, based on the past playback history. It may be set as data.

  In addition, the evaluation point in a certain information is represented by the sum of the evaluation points related to each related information, and the evaluation point related to each related information is attenuated at a predetermined attenuation rate according to the elapsed time from the time when the evaluation point is attached. You may set as follows. For example, the weight may be set so that it attenuates logarithmically in units of one day and finally becomes zero. This means that if certain music data has not been played back for a long period of time, the evaluation point will be smaller.

  FIG. 3 is a flowchart showing the operation of the content reproduction apparatus. In addition, below, the part which overlaps with description of the said function was abbreviate | omitted suitably. First, in response to an instruction signal from the instruction input unit 30, the music reproducing unit 50 reads and reproduces music data from the music data storage unit 40 (step S11). The behavior control unit 61 determines whether or not the instruction signal instructs creation of a playlist (step S12). In step S12, the action control unit 61 terminates the process if there is no instruction (N), and terminates the process. If there is an instruction (Y), the behavior control unit 61 refers to the rule DB 63 and permits analysis of the reproduced music data. It is determined whether or not the rules are set (step S13).

  If the analysis is permitted (step S13, Y), the behavior control unit 61 passes the activation signal to the history utilization unit 62. If the analysis is not permitted (step S13, N), the behavior control unit 61 does not generate the activation signal. The process is terminated.

  The history utilization unit 62 receives the activation signal, extracts the related information of the music data (step S14), and calculates the evaluation points by digitizing the extracted related information using the weighting (step S15). Next, the history utilization unit 62 reads the previous evaluation points from the operation history DB 64, and updates the evaluation points associated with the music data using the evaluation points calculated in step S15 (step S16). .

  Subsequently, the history utilization unit 62 generates data for creating a playlist based on at least the related information (for example, song name) and the updated evaluation point, and passes the data to the playlist display tool 70. (Step S17). Next, the playlist display tool 70 controls the display unit 11 based on the data transferred in step S17 to display the playlist (step S18).

  Next, a situation where a playlist is created will be described in detail with reference to FIG. For example, when the user listens to a song called “Song with rising sun” that is permitted to be analyzed during the morning commute, the history utilization unit 62 of the music analysis engine 60 uses the time zone “morning” as related information. The song name “song with rising sun” and the number of times of reproduction are extracted and digitized using weighting, and the evaluation point of “song with rising sun” is updated and stored in the operation history DB 64.

  Furthermore, a case is assumed in which the user wants to automatically create a playlist for music data associated with the keyword “morning”, for example. First, when receiving an instruction signal from the instruction input unit 30 accompanying a user's key operation or the like, the music analysis engine 60 generates data for creating a playlist based on related information and updated evaluation points. . Next, the playlist display tool 70 displays the playlist 80 on the display unit 11 according to the data. The playlist display tool 70 may be appropriately operated by a user's key operation or the like.

  The playlist 80 includes, for example, a keyword 81, a song name 82 that is related information of music data, an evaluation point 83, and a ranking 84 that is ranking based on the evaluation point 83. As the song name 82 of the song data, one containing words similar to the keyword 81 is selected. For example, in the “song where the sun rises”, the evaluation point 83 is “90”, the ranking 84 is “1”, and the word “the sun rises” is reminiscent of the morning. In “good-morning”, the evaluation point 83 is “50”, the ranking 84 is “3”, and the word “morning” means morning. In the playlist 80, the top 10 songs are ranked, but an appropriate number of songs may be ranked.

  Here, the update of the playlist 80 may be updated as needed, or may be updated every predetermined period. Further, it may be replaced with an existing playlist, or a predetermined number may be maintained at all times, and the oldest playlist may be deleted and replaced with a new playlist.

  Furthermore, although the play list 80 displays a plurality of music pieces, it may be one music piece. As shown in the figure, the evaluation points may be displayed in descending order or may be displayed in ascending order.

  According to the content reproduction apparatus 100 of the present embodiment, when the related information of music data is digitized, evaluation points are calculated using weights set as appropriate, and music data is reproduced using these evaluation points. Since it is sometimes updated, the evaluation points associated with the music data reflect the user's preference. As a result, the playlist 80 created in accordance with the evaluation points matches the user's preference.

  Further, since the music analysis engine 60 analyzes the music data stored in the music data storage unit 40, the playlist 80 can be created only by the content reproduction device 100, and there is no need to cooperate with the server. Furthermore, by changing the playlist 80 as needed, the user can enjoy music without getting bored. Further, the playlist 80 can be easily created only by key operation.

  In the above embodiment, the case of creating a playlist has been described. However, the present invention is not limited to this, and random reproduction may be performed based on the evaluation point of music data. Also, when browsing mail, related information may be extracted from the mail text, an evaluation point may be calculated, and music data suitable for the mail text may be reproduced as a list based on the evaluation point.

  Further, the function of the music analysis engine 60 may be held not on the content reproduction apparatus 100 but on the server side. In this case, it can be applied to music download services such as Chaku-Uta Full (registered trademark of Sony Music Entertainment Inc.) and Napster (registered trademark of Napster Limited Liability Company) to list music data that suits user preferences. The desired music data may be acquired by referring to this list.

  Furthermore, if the Internet connection function is used, the location where the music data is reproduced, the weather, and the like may be newly added as related information. By setting a weight according to the added related information and calculating an evaluation point, a playlist that matches the user's preference can be created.

  In the above embodiment, the case where the music data is reproduced has been described. However, the present invention is not limited to this. For example, the present invention may be applied to language learning software. As an example, only a problem that the user is not good at may be displayed as a list, and the problem that the user is not good at may be repeatedly learned.

  As described above, according to the content reproduction apparatus of the present invention, the following modes can be adopted.

  The related information may include at least one of content playback date, playback location, playback count, and title. The content analysis unit may refer to a list including a keyword and an evaluation point associated with the similarity between the keyword and the title of the content.

  The content analysis unit sets the evaluation point at the reproduction date / time of the content high at a date / time similar to the reproduction date / time. In this case, for example, by raising the evaluation point of the content reproduced at a specific date and time such as the Christmas season, the content more suited to the user's preference can be displayed in the list.

  The display control unit preferentially displays content with a high evaluation point on the display device. As a result, the user can preferentially select content that suits the taste. The content analysis unit may be selectively operable based on user designation.

  The content analysis unit selectively operates with reference to a storage device that stores a rule that specifies whether the content is to be analyzed. Thereby, if it sets so that it may not analyze with respect to a predetermined content, the content which does not match a user preference can be excluded from a list.

  As for the evaluation point, the numerical value of the related information decreases as time elapses from the time when the content reproduction occurs. As a result, if a certain content has not been reproduced for a long period of time, the content is less likely to be displayed in the list because it does not meet the user's preference. Note that music data can be adopted as the content.

  Although the present invention has been described based on the preferred embodiments, the content playback apparatus, content evaluation method, and program of the present invention are not limited to the configuration of the above embodiments, and Those in which various modifications and changes have been made to the configuration are also included in the scope of the present invention.

The figure which shows the structure of the content reproduction apparatus which concerns on one Embodiment of this invention. The block diagram which shows the function of a content reproduction apparatus. The flowchart which shows operation | movement of a content reproduction apparatus. The figure which shows an example of a play list.

Explanation of symbols

10: Upper housing 11: Display unit 20: Lower housing 30: Instruction input unit 40: Music data storage unit 50: Music reproduction unit 60: Music analysis engine 61: Behavior control unit 62: History utilization unit 63: Rule DB
64: Operation history DB
70: Playlist display tool 80: Playlist

Claims (11)

A content playback unit that reads and plays back content from a storage device that stores the content;
A storage device that stores content identification information and content evaluation points in association with each other;
Relevant information related to the content is extracted from the reproduced content, and a storage device that stores evaluation points corresponding to the relevant information is referred to. A content analysis unit that updates evaluation points corresponding to the content;
And a display control unit that displays the content on a display device using the display method based on the evaluation points.   The content reproduction apparatus according to claim 1, wherein the related information includes at least one of a reproduction date / time, a reproduction location, a reproduction count, and a title of the content.   The content reproduction apparatus according to claim 1, wherein the content analysis unit refers to a list including a keyword and an evaluation point associated with a similarity between the keyword and a title of the content.   The content reproduction apparatus according to claim 1, wherein the content analysis unit sets an evaluation point at a reproduction date / time of the content higher at a date / time similar to the reproduction date / time.   The content reproduction device according to any one of claims 1 to 4, wherein the display control unit preferentially displays content having a high evaluation point on the display device.   The content reproduction apparatus according to claim 1, wherein the content analysis unit is selectively operable based on a user designation.   The content reproduction device according to claim 1, wherein the content analysis unit selectively operates with reference to a storage device that stores a rule that specifies whether or not the content is to be analyzed.   The content evaluation device according to any one of claims 1 to 7, wherein the evaluation point has a numerical value that decreases with the passage of time from the content playback occurrence time for the related information.   The content reproduction apparatus according to claim 1, wherein the content is music data. A method for evaluating content in a terminal device having a computer,
A computer reading and reproducing the content from a storage device storing the content;
A step in which a computer stores content identification information and content evaluation points in association with each other;
The computer extracts related information related to the content from the reproduced content, refers to a storage device that stores the evaluation points corresponding to the related information, and gives evaluation points that quantify the related information, Updating an evaluation point corresponding to the reproduced content;
And a step of displaying the content on a display device by using a display method based on the evaluation points. A program for a terminal device having a computer, the computer having:
A process of reading the content from a storage device for storing the content and reproducing the content;
A process of associating and storing content identification information and content evaluation points;
Relevant information related to the content is extracted from the reproduced content, and a storage device that stores evaluation points corresponding to the relevant information is referred to. Update the evaluation points corresponding to the content;
And a process for displaying content on a display device using a display method based on the evaluation points.

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