JP2007193540A - Content data storage controller and content data reproduction device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a content data storage controller and a content data reproduction device for easily fetching content data in a status that the idea of a user is further reflected. <P>SOLUTION: A rate acquisition part 14 in a PC10 calculates a classification rate based on the predetermined attributes of music data in an HDD 12, and a content selecting part 16 selects music data in the HDD 12 so that the music data stored in an HDD 24 of an on-vehicle audio device 20 can be set as the classification rate, and outputs the music data to an on-vehicle audio device 20. A content acquisition part 22 of the on-vehicle audio device 20 stores the music data from the PC 10 in the HDD 24. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a content data storage control device for storing a part of a plurality of content data stored in a storage unit in another storage unit, and a content data playback device for reproducing the content data stored in the other storage unit About.

  Conventionally, music data is imported (ripped) from a CD (Compact Disc) to a personal computer (PC) as a music file, and the music file is further imported from the PC to an in-vehicle audio device or a portable audio device (hereinafter referred to as “in-vehicle device”). The user listens to music in the car or on the go.

  By the way, generally, the storage capacity of an HDD (Hard Disk Drive) which is a storage device in an in-vehicle audio apparatus or the like is smaller than the storage capacity of the HDD in a PC. For this reason, all music data (music files) stored in the HDD of the PC may not be taken into the HDD such as the in-vehicle audio device. In such a case, since only a part of the music data stored in the HDD of the PC can be taken into the HDD of the in-vehicle audio apparatus or the like, the user can select the in-vehicle audio from the music data stored in the HDD of the PC. Music data to be loaded into the HDD of the device or the like is selected in units of playlists or songs. As described above, in the method in which the user selects music data to be imported to the HDD such as the in-vehicle audio device in units of playlists or songs, music that is particularly suited to the user's taste is selected from the music data stored in the HDD of the PC. Although data can be taken into an HDD such as an in-vehicle audio device, the user needs to edit the playlist and select contents one by one, which is complicated.

In addition, there has been proposed a method of randomly selecting music data to be reproduced from a plurality of music data recorded on a storage medium (MD or the like) from a CD or the like so that music of a specific genre or artist is not continuous. (For example, Patent Document 1) Randomizing music data to be taken into an HDD such as an in-vehicle audio device from a plurality of music data (music files) stored in the HDD of the PC by using such a technique. It is also possible to choose. By using such a method, music data can be taken into an HDD such as an in-vehicle audio apparatus without a complicated operation by the user.
JP 2002-150752 A

By the way, the user usually takes in music data about music (song) that suits his / her preference from the CD to the HDD of the PC. Accordingly, the music data randomly selected from the music data captured in the HDD of the PC is also about music that suits the user's preference. However, as described above, music data randomly selected so that music of the same genre or artist (music attribute) does not continue from music data stored in the HDD of the PC is taken into the HDD of the in-vehicle audio apparatus. According to the conventional method described above, music data about music more reflecting the user's taste is not necessarily taken in from music data stored in the HDD of the PC.
An object of the present invention is to solve the above-described problems, and a content data storage control device that can easily capture content data in a state that more reflects the user's preferences, and the captured content data The content data reproducing device for reproducing the content is provided.

  The content data storage control device according to the present invention is a content data storage control device for storing a part of a plurality of content data stored in advance in a first storage means in a second storage means, Based on the classification ratio acquired by the classification ratio acquisition means, the classification ratio acquisition means for acquiring the classification ratio based on the predetermined attribute of the plurality of content data stored in the storage means, the first storage means Selection means for selecting content data to be stored in the second storage means from among the plurality of stored content data.

  With such a configuration, content data to be stored in the first storage unit from the plurality of content data based on a classification ratio based on a predetermined attribute of the plurality of content data stored in advance in the first storage unit Since the classification ratio based on the predetermined attribute that reflects the classification ratio based on the predetermined attribute of the plurality of content data stored in advance in the first storage unit is selected, the second is selected. The content data can be stored in the storage means.

  Further, in the content data storage control device according to the present invention, the selection means, when the total capacity of the plurality of content data stored in the first storage means exceeds the storage capacity of the second storage means, The content data to be stored in the second storage unit can be selected to be within the storage capacity of the second storage unit.

  With such a configuration, when the total capacity of the plurality of content data stored in the first storage unit exceeds the storage capacity of the second storage unit, the storage capacity of the second storage unit is taken into consideration. The content data can be stored in the second storage means at the classification ratio reflecting the classification ratio based on the predetermined attribute of the plurality of content data stored in advance in the first storage means. Become.

  In the content data storage control device according to the present invention, the content data may be music data, and the predetermined attribute may be any one of a genre, an artist name, and an announced age. .

  With such a configuration, the second classification ratio reflects the classification ratio based on any of the genres, artist names, and published ages of the plurality of music data stored in the first storage means in advance. Music data can be stored in the storage means.

  Furthermore, in the content data storage control device according to the present invention, the classification ratio may be represented by a data amount ratio or a content data number ratio.

  The content reproduction apparatus of the present invention reproduces the second storage means in which the content data is written by any one of the content data storage control devices described above and the content data stored in the second storage means. And a reproducing means.

  According to the content data storage control device of the present invention, the classification ratio based on the predetermined attribute reflecting the classification ratio based on the predetermined attribute of the plurality of content data stored in advance in the first storage means is used. Thus, the content data can be stored in the second storage means, so that the classification ratio based on the predetermined attribute of the plurality of content data stored in advance in the first storage means represents the user's preference. As a result, even if no special operation such as selection of content data is performed, the content data can be captured in a state in which the user's preference is more reflected in the second storage means. .

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

  FIG. 1 is a block diagram of a PC as a content data storage control device and an in-vehicle audio device as a content playback device according to an embodiment of the present invention. In FIG. 1, a PC 10 and an in-vehicle audio device 20 are connected, and music data as content data can be sent from the PC 10 to the in-vehicle audio device 20.

  The PC 10 calculates the classification ratio based on the HDD 12 (first storage means) that stores the music data that is the content data read (ripped) from the CD 50 and a predetermined attribute of the music data stored in the HDD 12. It has a ratio acquisition unit 14, a content selection unit 16 that selects music data to be captured by the in-vehicle audio device 20, and an operation unit 18 that receives a user operation instruction. The PC 10 can communicate with a CDDB (Compact Disc Data Base) server via a communication network such as the Internet.

  On the other hand, the in-vehicle audio apparatus 20 includes a content acquisition unit 22 that acquires music data from the PC 10, an HDD 24 (second storage means) that stores the acquired music data, and content playback that performs music data playback processing. Unit 26 and an operation unit 28 for accepting user operation instructions.

  Hereinafter, the operations of the PC 10 and the in-vehicle audio apparatus 20 will be described with reference to flowcharts. FIG. 2 is a flowchart showing the first operation (operation at the time of ripping) of the PC 10. The ratio acquisition unit 14 in the PC 10 determines whether or not the music data from the CD 50 has been taken into the HDD 12 as a music file of a predetermined format (ripping) (S101). The music data (music file) includes an ID that can uniquely identify the music data. When the import of music data from the CD 50 to the HDD 12 is completed (YES in S101), the ratio acquisition unit 14 reads the ID of each music data (music file) stored in the HDD 12 (S102), and is specified by the ID. Acquire the attributes of music data (genre, artist name, published age, etc.) in a batch.

  Specifically, the ratio acquisition unit 14 accesses the CDDB server via a communication network such as the Internet (S103). In this CDDB server, attribute data associated with the music data ID is registered, and the ratio acquisition unit 14 uses the ID of each music data (music file) as a key to store information registered in the CDDB server. By searching, attribute data corresponding to each music data is acquired, and the attribute data is stored in the HDD 12 in association with the music data (ID) (S104). The processing from S101 to S104 is performed for all music data (music files) imported to the HDD 12 (S105).

  FIG. 3 is a flowchart showing the second operation (operation when syncing) of the PC 10. This second operation is performed after the first operation described above. The ratio acquisition unit 14 determines whether a predetermined operation is performed on the operation unit 18 by the user and an attribute is specified (S111). When the attribute is designated (YES in S111), the ratio acquisition unit 14 calculates a classification ratio based on the designated attribute of the plurality of music data stored in the HDD 12 (S112). For example, when the attribute “genre” is designated by the user, the ratio acquisition unit 14 classifies the plurality of music data stored in the HDD 12 based on the genre, and calculates the classification ratio of the music data based on the genre. . This classification ratio can be represented by a ratio of data amount or a ratio of the number of music data (number of songs).

  Whether the ratio acquisition unit 14 calculates the ratio of the data amount or the ratio of the number of songs may be calculated in advance, or by a predetermined operation on the operation unit 18 by the user. The specified one may be calculated.

  On the other hand, if it is determined in S111 that the attribute is not designated, the ratio acquisition unit 14 classifies the plurality of music data stored in the HDD 12 based on the initially set (default) attribute, and based on the attribute. The classification ratio of the music data is calculated (S113). The ratio calculation unit 14 calculates a classification ratio based on the attribute of the music data in S112 or S113, and then includes a ratio attribute including information indicating the classification ratio and which attribute the classification ratio is based on Information is stored in the HDD 12 in association with the plurality of music data.

  The content selection unit 16 acquires the ratio attribute information and attribute data stored in the HDD 12 (S114). Next, the content selection unit 16 selects music data to be stored in the HDD 24 in the in-vehicle audio device 20 (S115). Specifically, the content selection unit 16 recognizes a classification ratio of a predetermined attribute for each piece of music data in the HDD 12 based on the acquired ratio attribute information. Further, the content selection unit 16 recognizes the attribute for each piece of music data in the HDD 12 based on the acquired attribute data. Then, the content selection unit 16 stores in the HDD 24 such that the classification ratio of the predetermined attribute of the music data stored in the HDD 24 in the in-vehicle audio apparatus 20 matches the classification ratio indicated by the ratio attribute information as much as possible. The music data to be selected is selected and read from the HDD 12. Here, the content selection unit 16 recognizes the capacity of the HDD 24 in advance, and if the data amount of the music data read from the HDD 12 exceeds the storage capacity of the HDD 24, the content selection unit 16 stores the data in the HDD 24 so as to fit in the HDD 24. Select music data to be used.

  FIG. 4 is a diagram illustrating an example of a correspondence relationship between music data stored in the HDD 12 of the PC 10 and music data stored in the HDD 24 of the in-vehicle audio device 20. FIG. 4A illustrates an example in which the content selection unit 16 selects music data stored in the HDD 24 of the in-vehicle audio device 20 based on the classification ratio of the genre of music data stored in the HDD 12 of the PC 10. It is. Here, the total amount of music data stored in the HDD 12 of the PC 10 is 70 GB, the classification ratio of the data amount for each genre is 50% (35 GB) for music data with “J-POP”, and “Jazz”. Music data of 25% (17.5GB), music data of "Rock" 10% (7GB), music data of "Classic" 10% (7GB), music data of "Hip Hop" 5% (3 .5GB).

  On the other hand, since the HDD 24 of the in-vehicle audio device 20 has a storage capacity of 30 GB, it cannot store all the music data stored in the HDD 12 of the PC 10. For this reason, the content selection unit 16 can store the music data to be stored in the HDD 24 of the in-vehicle audio apparatus 20 within 30 GB of the storage capacity of the HDD 24 and the classification ratio of the data amount for each genre is “J− "POP" is 50% (15GB), "Jazz" is 25% (7.5GB), "Rock" is 10% (3GB), "Classic" is 10% (3GB), "Hip Hop" is 5% (1 .5 GB) is selected from music data stored in the HDD 12 of the PC 10 so as to be as close as possible.

  For example, in FIG. 4A, when selecting 15 GB music data to be stored in the HDD 24 of the in-vehicle audio apparatus 20 from 35 GB music data of the genre “J-POP” stored in the HDD 12 of the PC 10, The content selection unit 16 randomly selects 35 GB of music data of the genre “J-POP” read from the HDD 12 of the PC 10 one by one. When the data amount of the selected music data exceeds 15 GB, the content selection unit 16 selects the music data to be stored in the HDD 24 of the in-vehicle audio device 20 immediately before the content selection unit 16 exceeds 15 GB. And Alternatively, the content selection unit 16 converts the music data of the genre “J-POP” of 35 GB read from the HDD 12 of the PC 10 into a combination that is equal to or less than 15 GB and closest to 15 GB. Music data to be stored in the HDD 24.

  4B shows the music stored in the HDD 24 of the in-vehicle audio apparatus 20 by the content selection unit 16 based on the classification ratio of the artist name (singer name) of the music data stored in the HDD 12 of the PC 10. It is an example in the case of selecting data. Here, the total amount of music data stored in the HDD 12 of the PC 10 is 15 GB, the number of music data (number of songs) is 100 songs, and the ratio of the number of songs for each singer is “singer A” music data. 35% (35 songs), "Singer B" music data 25% (25 songs), "Singer C" music data 20% (20 songs), "Singer D" music data 10% (10 Music data of “Singer E” is 5% (5 songs), and music data of “Singer F” is 5% (5 songs).

  On the other hand, since the HDD 24 of the in-vehicle audio device 20 has a storage capacity of 3 GB, it cannot store all the music data stored in the HDD 12 of the PC 10. For this reason, the content selection unit 16 fits in 3 GB of the storage capacity of the HDD 24 for the music data to be stored in the HDD 24 of the in-vehicle audio device 20, and the classification ratio of the number of songs for each singer is “Singer A "35%", "Singer B" 25%, "Singer C" 20%, "Singer D" 10%, "Singer E" 5%, "Singer F" 5% as close as possible Then, the music data stored in the HDD 12 of the PC 10 is selected.

  For example, in FIG. 4B, the music data stored in the HDD 12 of the PC 10 is 100 songs and the data amount is 15 GB, whereas the storage capacity of the HDD 24 of the in-vehicle audio device 20 is 1/5. Since it is 3 GB, the content selection unit 16 sets the music data to be stored in the HDD 24 of the in-vehicle audio device 20 to 1/5 20 songs. Then, the content selection unit 16 converts the music data of the “singer A” into seven songs (35%) according to the classification ratio of the music data stored in the HDD 12 of the PC 10 for each singer. ), "Singer B" music data 5 songs (25%), "Singer C" music data 4 songs (20%), "Singer D" music data 2 songs (10%), "Singer E" "2" (10%) music data and "Singer F" music data 1 music (5%). However, if the data amount of the music data for the selected 20 songs exceeds 3 GB, which is the storage capacity of the HDD 24 of the in-vehicle audio device 20, the content selection unit 16 may randomly exclude the music data or The music data are excluded in order from the music data of the singer with the highest classification ratio so that it falls within 3 GB.

  After selecting music data to be stored in the HDD 24 in the in-vehicle audio device 20 in this way, the content selection unit 16 reads each selected music data from the HDD 12 and outputs it to the in-vehicle audio device 20 (S116). ).

  FIG. 5 is a flowchart showing the operation of the in-vehicle audio apparatus 20. When the content acquisition unit 22 acquires music data from the PC 10 (S201), the content acquisition unit 22 writes the music data in the HDD 24 (S202). After that, the content reproduction unit 26 determines whether or not a predetermined operation is performed on the operation unit 28 by the user and an instruction to reproduce music data is given (S203). When reproduction of music data is instructed, the content reproduction unit 26 reads out music data from the HDD 24 and performs reproduction processing (S204).

  As described above, in this embodiment, when the music data stored in the HDD 12 of the PC 10 is stored in the HDD 24 of the in-vehicle audio apparatus 20, the ratio acquisition unit 14 in the PC 10 performs the genre and artist name of the music data in the HDD 12. The content selection unit 16 selects the music data in the HDD 12 so that the music data stored in the HDD 24 becomes the classification ratio and fits in the HDD 24. To the in-vehicle audio device 20. That is, if the classification ratio based on the predetermined attribute of the music data stored in the HDD 12 of the PC 10 can represent the user's preference, even if a special operation such as a music data selection operation is not performed, Music data can be captured in the HDD 24 of the in-vehicle audio apparatus 20 in a state that more reflects the user's taste.

  In the above-described embodiment, the case where the data amount of the music data stored in the HDD 12 of the PC 10 is larger than the storage capacity of the HDD 24 of the in-vehicle audio device 20 has been described. However, the music data stored in the HDD 12 of the PC 10 The present invention can also be applied to a case where the amount of data is smaller than the storage capacity of the HDD 24 of the in-vehicle audio apparatus 20. In this case, the music data stored in the HDD 12 of the PC 10 can be taken in according to the user's request to store a part, not all, of the music data in the HDD 24 of the in-vehicle audio device 20 according to the taste. It becomes.

  Further, in the above-described embodiment, the case where the classification ratio between the genre of music data stored in the HDD 12 of the PC 10 and the attribute of the artist name is acquired has been described. However, the classification based on other attributes such as the published age is described. The present invention can be similarly applied to the case where the ratio is acquired.

  In the above-described embodiment, the case where the music data capture destination is the in-vehicle audio device 20 has been described. However, the music data capture destination is another content playback device such as a portable audio device, or the content playback device. The present invention can also be applied to an external storage device such as a memory externally attached to the computer.

  As described above, the content data storage control device according to the present invention can easily capture content data in a state that more reflects the user's preferences, and is useful as a content data storage control device. is there.

It is a figure which shows the structure of PC and a vehicle-mounted audio apparatus. It is a flowchart which shows the 1st operation | movement of PC. It is a flowchart which shows the 2nd operation | movement of PC. It is a figure which shows an example of the correspondence of the music data memorize | stored in HDD of PC, and the music data memorize | stored in HDD of a vehicle-mounted audio apparatus. It is a flowchart which shows operation | movement of the vehicle-mounted audio apparatus.

Explanation of symbols

10 PC
12, 24 HDD
DESCRIPTION OF SYMBOLS 14 Ratio acquisition part 16 Content selection part 18, 28 Operation part 20 Car audio system 22 Content acquisition part 26 Content reproduction part 50 CD

Claims (6)

A content data storage control device for storing a part of a plurality of content data stored in advance in a first storage means in a second storage means,
Classification ratio acquisition means for acquiring a classification ratio based on predetermined attributes of a plurality of content data stored in the first storage means;
Selection means for selecting content data to be stored in the second storage means from among a plurality of content data stored in the first storage means based on the classification ratio acquired by the classification ratio acquisition means; A content data storage control device comprising: The selecting means selects content data to be stored in the second storage means when the total capacity of the plurality of content data stored in the first storage means exceeds the storage capacity of the second storage means. 2. The content data storage control device according to claim 1, wherein the content data storage control device is selected so as to be within the storage capacity of the second storage means. 3. The content data storage control device according to claim 1, wherein the content data is music data, and the predetermined attribute is any one of a genre, an artist name, and a published age. 4. The content data storage control device according to claim 1, wherein the classification ratio is represented by a data amount ratio. 4. The content data storage control device according to claim 1, wherein the classification ratio is expressed by a ratio of the number of content data. The second storage means in which content data is written by the content data storage control device according to any one of claims 1 to 4,
A content reproduction apparatus comprising: reproduction means for reproducing the content data stored in the second storage means.

Images