JP2008176618A - Information retrieval device and information retrieval method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information retrieval device and an information retrieval method, easily checking unrecorded music of an arbitrary artist. <P>SOLUTION: An information retrieval part 210 retrieves master music information 300 containing a designated artist name and management information 400 from a music information storage part 190 and a management information storage part 200, and an information providing part 220 extracts music albums except a music album shown by the management information 400 retrieved by the information retrieval part 210 from music albums shown by the master music information 300 retrieved by the information retrieval part 210, and provides music information of the extracted music albums. According to this, only music information of unrecorded music albums for the designated artist name can be obtained, and the unrecorded music of the arbitrary artist can be thus easily checked. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an information retrieval apparatus and an information retrieval method, and is particularly suitable for use in an apparatus and method adapted to retrieve desired information from a database storing a plurality of pieces of music information.

Conventionally, as a technique utilizing information stored in an information database, when reproducing a program recorded on a recording medium, information related to the program is acquired from the information database, and the information is effectively transmitted to the user. An information providing system to be provided has been proposed (see, for example, Patent Document 1). In addition, a music information introduction system that efficiently introduces music that matches user preferences using a music information DB (Data Base) has been proposed (for example, see Patent Document 2).
JP 2004-185788 A JP 2005-300772 A

  On the other hand, some audio processing apparatuses in recent years use a CDDB (CD Data Base) that manages music information of a CD (Compact Disc) album, and use the name, album name, and artist of each song included in the CD album. Some have a function to display names. By using this function, the user can easily know which song is currently being listened to when playing a song included in the CD album or a song recorded on the HD (Hard Disc) in the device from the CD album. can do. Also, it is possible to search for a CD album that has been recorded in the HD of the audio processing apparatus at the present time.

  However, since the search processing in the audio processing apparatus described above is performed within the range of CD albums that the user actually picked up in the past and recorded on the HD, the user owns a number of CD albums for an artist. In order to confirm which CD album is recorded on the HD, it is only possible to confirm the music information of the CD album currently recorded on the HD. However, in order to find out which CD album is recorded on the HD, it may be quicker to see which CD album is not recorded.

  The present invention has been made to solve such a problem, and an object of the present invention is to make it possible to easily check a music album that has not been recorded or a music in a music album for an arbitrary artist.

  In order to solve the above-described problems, in the present invention, the information search unit searches the music information storage unit and the management information storage unit for master music information and management information including the designated artist name, and provides the information providing unit. Is extracted from the music album indicated by the master music information searched by the information search unit, excluding the music album indicated by the management information searched by the information search unit, and the extracted music album Music information is provided.

  In another aspect of the present invention, the recording management unit includes, as management information, music information of a music recorded as audio data on a recording medium among music included in the music album, as music information of the music album. To the music album indicated by the management information searched by the information search unit from the music included in the music album indicated by the master music information searched by the information search unit. Among the included songs, the music except for the music recorded as audio data on the recording medium is extracted, and the music information of the extracted music is provided.

  According to the present invention configured as described above, the master music information searched by the information search unit includes the music information of both the music album recorded on the recording medium and the music album not recorded, and the information search Since the management information searched by the section includes only the music information of the recorded music album, the difference between the music album indicated by the master music information and the music album indicated by the management information is extracted, so that It becomes possible to obtain only the music information of a music album that has not been recorded for the artist name that has been recorded, and the music album that has not been recorded for any artist can be easily confirmed.

  According to another feature of the invention, the master music information searched by the information search unit includes music information of both the music recorded on the recording medium and the music not recorded for each music in the music album. The management information included and searched by the information search unit includes only music information related to the music already recorded on the recording medium for each music in the music album, so the music in the music album indicated by the master music information and management By extracting the difference from the song in the song album indicated by the information, it is possible to obtain only the song information about the song that has not been recorded for the specified artist name. Can be confirmed.

  Hereinafter, an embodiment of the present invention (hereinafter referred to as the present embodiment) will be described with reference to the drawings. FIG. 1 is a diagram illustrating a functional configuration example of the information search apparatus 10 according to the present embodiment.

  As shown in FIG. 1, the information search apparatus 10 includes a microcomputer 100 that controls the overall operation of the information search apparatus 10, a CD (Compact Disc) drive 120, a D / A (Digital to Analog) converter 130, and an HD (Hard Disk). 140) are connected via the control bus 110. In the present embodiment, the information search device 10 is mounted on a car navigation device (not shown) of a vehicle. In addition, the information search device 10 can input audio data of a music CD 150 (corresponding to the music album of the present invention) from the CD drive 120 and record (record) it on the HD 140.

  The CD drive 120 includes a turntable that holds the music CD 150 in a rotatable state, an optical pickup that reads audio data corresponding to the music recorded on the music CD 150, and the like. When the music CD 150 is inserted, the CD drive 120 reads the audio data recorded on the music CD 150 with an optical pickup while rotating the music CD 150 with a turntable, and the read audio data is read based on the reproduction instruction of the microcomputer 120. Output to the D / A converter 130.

  The D / A converter 130 converts the audio data output from the CD drive 120 into an analog audio signal, and outputs the audio signal to the amplifier 160. The amplifier 160 amplifies the audio signal output from the D / A converter 130 and then outputs it to the speaker 170. The speaker 170 outputs sound to the outside based on the audio signal output from the amplifier 160.

  The HD 140 (corresponding to a recording medium of the present invention) includes an audio data storage unit 180, a music information storage unit 190, and a management information storage unit 200. The audio data storage unit 180 stores audio data read from the music CD 150 via the CD drive 120 by a recording function provided in the navigation device in which the information search device 10 is mounted.

  The music information storage unit 190 is a so-called CDDB (Compact Disc DataBase). That is, the music information storage unit 190 stores music information of a music album including a plurality of music, and includes music information including the artist name of the music album as master music information. In the music information storage unit 190, the latest master music information is recorded in advance at the time of shipment. The master music information includes both information related to music albums recorded in the audio data storage unit 180 and information related to music albums not recorded.

  FIG. 2 is a diagram illustrating an example of master music information stored in the music information storage unit 190. As shown in FIG. 2, the master song information 300 of each song album includes TOC (Table Of Contents) information, the album name of the song album, the artist name of the song album, the release date of the song album, and the song album. The song name of each song is included as item information. Here, the TOC information is table-of-contents information that records information such as the number of songs included in the song album, performance time, and pause time.

  The management information storage unit 200 stores, as management information, music information of the music CD 150 recorded as audio data in the audio data storage unit 180 of the HD 140 and including the artist name of the music CD 150. FIG. 3 is a diagram illustrating an example of management information stored in the management information storage unit 200. As shown in FIG. 3, the management information 400 of each music CD 150 includes the album name of the music CD 150 and the artist name of the music CD 150 as item information.

  The microcomputer 120 is a system controller and controls the entire information search apparatus 10. The microcomputer 120 includes an information search unit 210, an information provision unit 220, an information update unit 240, and a record management unit 270 as its functional configuration. The information search unit 210 searches the music information storage unit 190 and the management information storage unit 200 for the master music information 300 and the management information 400 including the designated artist name.

  The information providing unit 220 removes the song album indicated by the management information 400 searched by the information search unit 210 from the song album indicated by the master song information 300 searched by the information search unit 210, that is, audio. A music album not recorded as audio data in the data storage unit 180 is extracted, and music information of the extracted music album is provided. In the present embodiment, the information providing unit 220 displays the music information of the extracted music album on the monitor 230. For example, the music information storage unit 190 stores the music information of the music album X, the music album Y, and the music album Z, and the management information storage unit 200 stores the music information of the music album X and the music album Y. The information providing unit 220 extracts the song album Z as a song album that is not recorded as audio data in the audio data storage unit 180, and displays the song information of the extracted song album Z on the monitor 230.

  The information update unit 240 updates the master song information 300 stored in the song information storage unit 190 with the song information of the song album acquired from the outside. In the present embodiment, the information update unit 240 communicates with a music information distribution server (not shown) existing on the Internet 260 via the communication unit 250 and receives music information from the music information distribution server. Note that the information update unit 240 may acquire music information from the external recording medium by connecting an external recording medium in which the music information of the music album is recorded to the information search apparatus 10.

  When the music on the music CD 150 is recorded as audio data in the audio data storage unit 180, the recording management unit 270 performs a process of recording the music information on the music CD 150 in the management information storage unit 200. For example, the recording management unit 270 stores the management information 400 using the music information of the music CD 150 as the management information 400 only when all the music included in the music CD 150 is recorded as audio data in the audio data storage unit 180. Store in unit 200. At this time, the album name and artist name stored as the management information 400 are acquired from the music information storage unit 190 using the TOC information recorded on the music CD 150 as a search key.

  Next, the operation of the information search apparatus 10 according to the present embodiment will be described. FIG. 4 is a flowchart showing the overall flow of the information search method in the information search apparatus 10 of this embodiment. In the information search process in FIG. 4, for example, when the music CD 150 is inserted into the CD drive 120 and the music included in the music CD 150 is played back, the music information of the music album not recorded for the artist of the music CD 150 is displayed. The processing contents when doing are shown.

  FIG. 5A shows an example of a display screen displayed on the monitor 230 when the information retrieval apparatus 10 is playing a music piece of the music CD 150. On the monitor display screen of FIG. 5A, as the music information 510 of the music CD 150, the song name (in FIG. 5A, the name of the second song currently being played: MusicABC), the album name (in FIG. 5A) The album name of the music CD 150: AlbumABC) and the artist name (in FIG. 5A, the artist name of the music CD 150: ABC) are displayed. When the user presses the unrecorded song search button 520 on the monitor display screen, the process of step S100 in FIG. 4 starts.

  In step S100, the information search unit 210 sets the artist name of the music CD 150 being played as a search key. Specifically, the information search unit 210 searches the music information storage unit 190 using the TOC information recorded on the music CD 150 as a search key, and the artist name included in the music information of the music CD 150 inserted in the CD drive 120. Is obtained and set as the search key.

  In step S120, the information search unit 210 applies the master music information 300 and the management information 400 including the artist name designated as the search key to all items stored in the music information storage unit 190 and the management information storage unit 200. To search.

  In step S140, the information providing unit 220 removes the song album indicated by the management information 400 searched by the information search unit 210 from the song album indicated by the master song information 300 searched by the information search unit 210. That is, the music album not recorded in the audio data storage unit 180 is extracted.

  In step S160, the information providing unit 220 displays the music information of the music album extracted in step S140 on the monitor 230. FIG. 5B is an example of a display screen in which the music information 600 of the extracted music album is displayed as a list in the vertical direction. As shown in FIG. 5B, as the music information 600 of each music album, album names and release dates are displayed in ascending order based on the release date. Note that the music information 600 of each music album may be displayed in descending order based on the release date.

  Next, when the master music information 300 stored in the music information storage unit 190 is updated, a case where an unrecorded music album is searched and the music information of the music album is provided will be described. FIG. 6 is a diagram illustrating an example of a monitor display screen of the information search apparatus 10 in that case.

  FIG. 6A is an example of a monitor display screen when the information update unit 240 acquires music information of a music album from the outside. FIG. 6B is an example of a display screen when the information update unit 240 completes the update process of the master song information 300 stored in the song information storage unit 190 with the song information of the song album acquired from the outside. is there. Here, when the user presses an unrecorded song search button 700 on the monitor display screen, the information search process described in FIG. 4 is executed.

  At this time, the artist name can be specified by, for example, operating the operation input unit (not shown) on the artist name input screen (not shown) that transitions when the unrecorded song search button 700 is pressed. . If the music CD 150 is inserted in the CD drive 120, the artist name of the music CD 150 may be designated by the same means as in step S100 of FIG.

  Then, after the information search process is completed, the monitor display screen changes to FIG. As shown in FIG. 6C, as the music information 710 of each music album, album names and release dates are displayed in ascending order based on the release date. Note that the music information 710 shaded in FIG. 6C is music information of a music album newly searched after the update processing of the master music information 300 stored in the music information storage unit 190.

  As described above in detail, according to the present embodiment, the music information storage unit 190 storing the music albums recorded in the audio data storage unit 180 and the master music information 300 of unrecorded music albums, and the audio data storage The information search unit 210 searches the management information storage unit 200 in which the music information (management information 400) of the music album already recorded in the unit 180 is stored, and is indicated by the music album and the management information 400 indicated by the master music information 300. By extracting the difference from the recorded music album, it is possible to obtain only the music information of the unrecorded music album for the specified artist name, so it is easy to check the unrecorded music album for any artist be able to.

  In the present embodiment, the information search unit 210 searches the master music information 300 including the designated artist name from the entire music information storage unit 190, but the master updated by the information update unit 240. The search range may be limited to the range of the music information 300 and the music information storage unit 190 may be searched. Thereby, for example, when the master music information 300 stored in the music information storage unit 190 is updated annually, the user can easily release new release information or a music album that has been forgotten to be purchased for any artist's music album. Can be confirmed.

  In this embodiment, the recording management unit 270 manages the music information of the music album as the management information 400 only when all the music included in the music album is recorded as audio data on the HD 140. Although it memorize | stores in the information storage part 200, it is not limited to this. For example, if at least one of the songs included in the song album is recorded as audio data in the HD 140, the recording management unit 270 uses the song information of the song album as management information 400 in the management information storage unit 200. You may remember. This is because only a favorite song may be intentionally recorded from the song album. In that case, since the music album is treated as recorded, it can be removed from the unrecorded display.

  Also, the recording management unit 270 includes, as management information 400, music information of music recorded as audio data in the HD 140 among music included in the music album, and is included in the music information of the music album. You may make it memorize. In this case, the information providing unit 220 is included in the song album indicated by the management information 400 searched by the information search unit 210 from the songs included in the song album indicated by the master song information searched by the information search unit 210. Among the music, the music excluding the music recorded as audio data in the HD 140 is extracted, and the music information of the extracted music is provided. When configured in this way, it is possible to obtain only music information about unrecorded music for a music album that has not been recorded for some of the specified artist names. The music can be easily confirmed.

  Further, in the present embodiment, when the music included in the music CD 150 is being reproduced or when the master music information 300 stored in the music information storage unit 190 is updated, the artist of the music CD 150 is not recorded. Searching for a song album, but not limited to this. For example, when audio data of a music CD 150 is input from the CD drive 120 and recorded (recorded) on the HD 140, an unrecorded music album for the artist of the music CD 150 may be searched.

  The music information of the music album not recorded as audio data in the HD 140 is stored in the management information storage unit 200 as unrecorded music information, and the unrecorded music information related to the designated artist name is retrieved and provided. Also good. In this case, unrecorded music information may be stored not in music album units but in music units so that search and information can be provided in music units. Accordingly, the user can easily confirm the music information of the unrecorded music included in the music album related to an arbitrary artist by referring to the non-recorded music information provided by the information search device 10. .

  In the embodiment described with reference to FIG. 4, the artist name of the music CD 150 being played is set as the search key by the information search unit 210, but the present invention is not limited to this. For example, the user may input and set an arbitrary artist name via an operation input unit (not shown).

  In addition, each of the above-described embodiments is merely an example of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed in a limited manner. In other words, the present invention can be implemented in various forms without departing from the spirit or main features thereof.

It is a figure which shows the structural example of the information search device by this embodiment. It is a figure which shows the example of the master music information memorize | stored in the music information storage part of the information search device by this embodiment. It is a figure which shows the example of the management information memorize | stored in the management information storage part of the information search device by this embodiment. It is a flowchart which shows the information search method performed with the information search device by this embodiment. It is a figure which shows the example of a monitor display screen of the information search device by this embodiment. It is a figure which shows the example of a monitor display screen of the information search device by this embodiment.

Explanation of symbols

10 Information retrieval device 140 HD
150 music CD
180 Audio Data Storage Unit 190 Music Information Storage Unit 200 Management Information Storage Unit 210 Information Search Unit 220 Information Provision Unit 240 Information Update Unit 250 Communication Unit

Claims (7)

Music information of a music album including a plurality of music, and a music information storage unit that stores music information including the artist name of the music album as master music information;
A management information storage unit that stores, as management information, music information of a music album recorded as audio data on a recording medium, the music information including the artist name of the music album;
An information search unit that searches the music information storage unit and the management information storage unit for master music information and management information including the designated artist name;
The music album excluding the music album indicated by the management information searched by the information search unit is extracted from the music album indicated by the master music information searched by the information search unit, and the music information of the extracted music album An information provider that provides
An information retrieval apparatus comprising: The information search device according to claim 1,
An information search apparatus further comprising an information update unit for updating master music information stored in the music information storage unit with music information of a music album acquired from the outside. The information search device according to claim 2,
The information search unit is configured to search the music information storage unit within a range of the master music information updated by the information update unit. In the information search device according to any one of claims 1 to 3,
A recording management unit for storing the music information of the music album as management information in the management information storage unit only when all the music included in the music album is recorded as audio data on the recording medium; An information search apparatus comprising: In the information search device according to any one of claims 1 to 3,
When at least one of the songs included in the song album is recorded as audio data on the recording medium, the recording album further includes a record management unit that stores the song information of the song album as management information in the management information storage unit An information retrieval apparatus characterized by that. The information search device according to claim 5,
The recording management unit includes, as management information, music information of music recorded as audio data on the recording medium among music included in the music album, and includes the music information of the music album as the management information storage. Remember in the department,
The information providing unit includes, among songs included in the song album indicated by the management information searched by the information search unit, from songs included in the song album indicated by the master song information searched by the information search unit, An information retrieval apparatus that extracts music except music recorded as audio data on the recording medium and provides music information of the extracted music. Music information of a music album including a plurality of music, a music information storage unit for storing music information including the artist name of the music album as master music information, and music recorded as audio data on a recording medium An information search method in an information search apparatus comprising: a music information of an album, and a management information storage unit that stores music information including the artist name of the music album as management information;
A first step of retrieving master music information and management information including the designated artist name from the music information storage unit and the management information storage unit;
The music album excluding the music album indicated by the management information searched by the information search unit is extracted from the music album indicated by the master music information searched by the information search unit, and the music information of the extracted music album A second step of providing
A method for retrieving information, comprising: