JP2006324005A - Reproduction device and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reproduction device, having simple operability, satisfactorily employed on vehicle, and effectively utilizing stored music data according to user's wish. <P>SOLUTION: The reproduction device, capable of reproducing music data read from a storage means 110 storing the music data is provided with a means for specifying music data stored within a certain period on the basis of the information on the storage date and hours when the music data is stored in the storage means 110, dividing the music data stored within the certain period by groups and creating a plurality of the groups, a reproduction order information creating means 160 for creating reproduction order information by lining up these groups, and a reproduction control means 170 for reproducing the music data stored in the storage means 110 on the basis of the reproduction order information created by the reproduction order information creating means 160. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a playback device and a playback program, and more particularly, playback for playing back a song stored in a large-capacity storage device such as a hard disk or a DVD based on information indicating the order of the songs to be played back. The present invention relates to an apparatus and a reproduction program.

  With the advancement of digital technology, music data is provided through a wide variety of media such as CD, MD, and DVD. Devices for recording and reproducing these music data have been developed one after another, and many useful functions have been installed in order to make full use of the characteristics of each media.

  However, in-vehicle playback devices require simple operations so that safe driving is not hindered even if they are multifunctional. For this reason, the functions mounted on a normal playback device that is not mounted on a vehicle (hereinafter referred to as a non-vehicle playback device) tend to be drastically reduced, and the requirement for effective use of music data is satisfied. Absent.

  As a typical function installed in a general on-vehicle playback device, there is a function generally called a program playback function. This function is information that indicates the order of songs that the user wants to listen to, which is preset in the music data stored in one or more CDs, MDs, DVDs, etc. (hereinafter referred to as playback order information). ) Is a function for playing music data.

  However, setting the playback order information is complicated and requires a long time operation. For this reason, even if you get bored with the order of the songs indicated by the playback order information that you have set, the playback order information cannot be updated easily, or the function is not fully utilized by users due to its annoyance. It is.

  Another typical function is a function called a random reproduction function. This function is a function for randomly selecting the order of songs to be played back on the device side without using the playback order information as described above. For this reason, when the user's wish is not transmitted and a random music selection is made from a lot of music data such as a plurality of CDs set in the CD changer, there is a song that the user does not want to listen to at all. Often it will be selected. Therefore, there is also a function for designating a range to be selected, but this requires a complicated operation as in the case of the program reproduction function described above, and this tendency becomes stronger as more songs can be selected.

  Paying attention to such a problem of the in-vehicle playback device, for example, the following Patent Document 1 has a function of storing the number of playbacks for each song and playing the song with the highest number of playbacks first. An in-vehicle playback device has been disclosed, and this makes it possible to significantly improve the operability while fully utilizing the functions of the in-vehicle playback device. However, the function of playing the song with the highest number of playbacks first is not a universal requirement, and does not solve the above-described problems.

  On the other hand, recently, with the increase in capacity of recording media and the advancement of digital data compression technology, it has become possible to store a large amount of music data in a large capacity recording medium such as a hard disk. Fused non-vehicle playback devices are generally used. Such an apparatus has an excellent feature that it can easily store a large amount of music data and does not involve time-consuming mechanical operation like CD exchange in a CD changer even during playback.

  With a conventional non-vehicle playback device using a CD changer or the like, it was sufficient to manage about 100 songs, but with a large-capacity non-vehicle playback device as described above, thousands to tens of thousands of songs It is expected to be able to select the song that the user wants from among them. This usually requires a complicated operation, and more complicated operation and time are required particularly when the program reproduction function is used. For this reason, a personal computer having excellent operability in the management of electronic information is often used to create the reproduction order information, and is not suitable for an in-vehicle reproduction apparatus that places importance on safety.

  As an example of a vehicle-mounted playback device provided with a large-capacity recording medium as described above, for example, in Patent Document 2 below, a vehicle-mounted playback device equipped with a hard disk or a memory card in addition to a CD player or an MD player is disclosed. It is disclosed. This document describes the effect that an arbitrary song can be selected and reproduced from a plurality of music recording media, but for safe driving, it is assumed that the passenger will operate it, A specific operation method is not described, and does not solve the above problem.

  In other words, in-vehicle playback devices equipped with a large-capacity recording medium are equipped with only the necessary minimum functions with priority given to safety, or functions that require complicated operations at the expense of safety. As a result, in-vehicle playback devices where safety is a priority are not realized in terms of functionality.

As described above, the conventional in-vehicle playback device has few functions and cannot effectively use a large amount of music data, and the operation is complicated in the large-capacity non-vehicle playback device. There is a problem that it is not suitable for in-vehicle use.
JP 60-55581 A JP 2000-207845 A

Means for solving the problems and their effects

  The present invention has been made in view of the above-mentioned problems, has a simple operability, can be sufficiently adopted for in-vehicle use, and effectively uses a large amount of stored music data in accordance with the user's wishes. It is an object of the present invention to provide a playback device that can perform playback and a playback program for realizing the playback device.

  In order to achieve the above object, a playback apparatus (1) according to the present invention is a playback apparatus for playing back music data stored in a storage means, based on storage date information stored in the storage means. The present invention is characterized by comprising group creating means for identifying music data stored within a certain period, dividing the music data stored within the certain period into groups, and creating a plurality of groups.

According to the playback apparatus (1), music data stored within a certain period (for example, music data stored in the teens, 3 years ago, Sunday, winter season) is divided into groups. Multiple groups are created. Therefore, by playing back music data belonging to these groups, for example, only newly stored music data can be played back, or only music data stored in the days of teens, 3 years ago, Sunday, and winter can be played back. Or play it.
Further, since one group can be handled like one piece of music data, for example, reproduction order information can be easily created by arranging the groups.

  In addition, the playback program (1) according to the present invention allows a playback device that plays back music data stored in the storage means within a certain period based on the storage date and time information stored in the storage means. The present invention is characterized by realizing a function of specifying stored music data and a function of creating a plurality of groups by dividing music data stored within the certain period into groups.

  According to the reproduction program (1), the functions of the reproduction apparatus (1) can be easily realized in another computer system. Furthermore, the functions of the playback device (1) can be realized in more computer systems by using a computer-readable recording medium on which the program is recorded.

Embodiments of a playback apparatus and a playback program according to the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram schematically showing the main part of the playback apparatus according to the embodiment (1). As shown in FIG. 1, the playback apparatus includes a control unit 100, a storage unit 110, a reading unit 120, a playback unit 130, an operation unit 140, a communication unit 150, a playback order information creation unit 160, a playback control unit 170, and a notification unit. 180.
The control means 100 controls each means included in the playback device through the bus 20, and is realized by one or a plurality of central processing units and their peripheral circuits.

  The storage unit 110 is configured by a storage device that stores at least music data and reproduction order information. In the embodiment, the storage unit 110 has a large storage capacity and can store a large amount of music data. The storage unit 110 is realized by a hard disk, a magneto-optical disk, or the like, but may additionally include a semiconductor memory or the like.

The reading unit 120 reads music data stored in the recording medium 10 such as a CD, MD, or DVD, and reads music data transmitted via the Internet via the antenna 150A and the communication unit 150.
The reproduction means 130 is means for converting the digital music data transmitted from the reproduction control means 170 into an analog signal for reproduction, and a speaker 130A or the like is used for output.

The operation unit 140 allows the user to select one reproduction order determination criterion information from a plurality of reproduction order determination criterion information. In addition to the keyboard switch format, the operation means 140 is a touch panel switch format or a voice input format. Also good.
The communication means 150 is means for connecting the playback device to the telecommunication line by wireless communication, and performs data transmission / reception. This is realized by a normal wireless communication device mounted on a mobile phone or a car navigation system.

The reproduction order information creating means 160 creates reproduction order information based on the reproduction order judgment criterion information selected by the user, and is realized by a program and a computer in which the program is incorporated.
The reproduction control unit 170 sequentially transmits the corresponding music data from the storage unit 110 to the reproduction unit 130 based on the reproduction order information stored in the storage unit 110, and reproduces the music data read by the reading unit 120. The information is transmitted to the means 130, and is realized by a program and a computer in which the program is incorporated.

  The notifying means 180 is means for notifying song name information, playback order information, playback order judgment criterion information, etc. included in the music data. This is realized by a monitor screen or the like, but may be a touch panel switch format or an audio output format integrated with the operation means 140. In particular, in the touch panel switch type, the notification content can be confirmed and the input operation can be performed by a series of operations, so that the operation becomes simpler and higher safety is maintained.

FIG. 2 is a table schematically showing an example of the data structure and reproduction order information of music data used in the reproduction apparatus according to the embodiment (1).
As shown in the figure, each music data described in one line in the table includes identification data for specifying each music data, and acoustic data indicating sound information when each music data is reproduced. It is configured to include. The identification data includes a song ID, song name information, artist name information, genre information, storage date information, and the like. Note that the acoustic data may include control information at the time of reproduction operation.

The reproduction order information is information indicating the order in which the music data is reproduced. As shown in the figure, for example, the reproduction order information may be expressed as a sequence of music IDs as shown in the leftmost column of the table. However, for the sake of explanation, other identification data is also described below as reproduction order information.
Normally, the playback order information should be defined in the order of starting from the music data that becomes the first row of the table and proceeding one line at a time in the direction of the last row. Various settings are possible, such as advance every other line or advance every random number of lines.

  Based on such reproduction order information, the reproduction control unit 170 reads out the acoustic data from the portion of the storage unit 110 where the music data to be reproduced is stored, and sequentially transmits this to the reproduction unit 130. Thereby, the music data is reproduced. In accordance with this, it is desirable that the control unit 100 transmits the identification data from the portion where the music data to be reproduced is stored to the notification unit 180 to notify it.

FIG. 3 is a diagram conceptually illustrating an example of the operation unit 140 and the notification unit 180 used in the playback apparatus according to the embodiment (1).
The operating means 140 is realized by a fixed board 140A and a remote controller 140B. These operation means 140 are provided with input means corresponding to the respective reproduction order judgment reference information, and are configured to set the reproduction order judgment reference information selected by operating this.

  The notification means 180 is realized by a monitor screen 180A. Examples of screens displayed on the monitor screen 180A are shown in screens 1-5. As shown in these screens, the notification means 180 displays the type of playback order determination criterion information that can be selected, the selected playback order determination criterion information, the music data being played back and the progress status thereof.

  Here, [1] song name, [2] artist name, [3] genre, and [4] storage date and time are illustrated as each reproduction order judgment reference information. The playback apparatus according to the embodiment (1) first displays the screen 1 and causes the user to select one from the playback order determination criteria information shown on the screen 1. Next, screens 2 to 4 are displayed, and for each selected reproduction order determination criterion information, information supplementing it is selected. When the reproduction order information is created based on the selected reproduction order judgment criterion information, the music data starts to be reproduced according to the created reproduction order information, and the screen 5 is displayed to notify the user of the situation. To do. Here, an example is shown in which the storage date / time information “October 1999” is selected as the selected reproduction order determination criterion information.

  FIG. 4 is a flowchart showing the operation of the control means 100 in the reproducing apparatus according to the embodiment (1) shown in FIG. The screens 1 to 5 shown in FIG. First, in step S400, the screen 1 is displayed on the notification unit 180, the user selects one reproduction order determination criterion information from the plurality of reproduction order determination criterion information via the operation unit 140, and the process proceeds to step S401. .

  In step S401, it is determined whether or not the selected reproduction order determination criterion information is in the order of names such as [1] song name and [2] artist name. If it is determined that the names are in order, the process advances to step S403 to display the screen 2 on the notification means 180. Then, the process proceeds to step S406, and further, as supplementary reproduction order judgment reference information, the user selects the first character constituting the desired name from the Japanese alphabet, and the process proceeds to step S409. On the other hand, if it is determined in step S401 that the names are not in order, the process proceeds to step S402.

  In step S402, it is determined whether or not the selected reproduction order determination criterion information is [3] genre. [3] If it is determined that it is a genre, the process proceeds to step S404, and the notification unit 180 displays the screen 3. Then, the process proceeds to step S407, and the genre information is selected by the user as supplementary reproduction order judgment criterion information from “pops”, “enka”, “vocals”, “jazz”, “rock”, and “soul”. And the process proceeds to step S409.

  On the other hand, if it is determined in step S402 that it is not [3] genre, it is determined that it is desirable that the selected reproduction order determination criterion information specifies [4] date and time, such as storage date and time, and the process proceeds to step S405. The screen 4 is displayed on the notification means 180. Then, the process proceeds to step S408, and further, the user is allowed to select the date and time as supplementary reproduction order determination criterion information, and the process proceeds to step S409.

  In step S409, the reproduction order information creating unit 160 creates reproduction order information based on the selected reproduction order determination criterion information. In step S410, the notification unit 180 displays the screen 5. In step S411, the reproduction control unit 170 starts reproduction of music data based on the reproduction order information. Such an input operation preferably includes a cancel input function for stopping input, an interrupt input function from an external device, and the like.

  According to the reproducing apparatus according to the embodiment (1), various music selection functions can be exhibited by the simple operation as described above. Hereinafter, a process in which the reproduction order information creating unit 160 creates the reproduction order information based on the above-described reproduction order determination criterion information will be described.

  FIG. 5A schematically shows an example when the reproduction order information created by the reproduction order information creation means 160 is created when the reproduction order judgment criterion information is the alphabetical order information of the song name information. It is a table. On the other hand, FIG. 5B schematically shows an example when the reproduction order information created by the reproduction order information creating means 160 is created when the reproduction order judgment reference information is the alphabetical order information of the artist name information. It is a table shown automatically.

  As shown in the screen 2 of FIG. 3 above, the song name information or artist name information as the playback order determination criterion information may be selected by the user from the characters arranged in alphabetical order. . If it is inconvenient because there are a large number of songs just by selecting the first character, the second character and the third character may be further selected.

  As shown in FIG. 5, in order to arrange the music data in the order of pronunciation of the song title and artist name, the music data needs to include the alphabetical order information in which the song title and artist name are expressed in kana characters. The reproduction order information creating means 160 can arrange the music data in the order of the Japanese syllabary by referring to the Japanese syllabary order information. Instead of the alphabetical order information, it is also possible to use alphabetical order information in which a song title or artist name is written in a foreign language, for example, alphabet.

  It is also possible to create a group composed of music data for a predetermined number of songs, for example, music data for 10 songs, and to create reproduction order judgment reference information in which the created groups are arranged. In this case, as shown in the figure, the music data may be arranged in the order of the Japanese syllabary and group information may be added to each music data. The group information identifies each group, and a plurality of music data in the group is normally reproduced continuously. Therefore, one group can be handled like one music data, and the group information of one group can be handled in the same way as the song ID of one music data.

  FIG. 6 is a flowchart showing an operation when the reproduction order information creating unit 160 creates the reproduction order information shown in FIG. 5A or 5B. Since the song name information and the artist name information are almost equivalent in processing, here, as in the example of FIG. 5A, the reproduction order judgment criterion information is the alphabetical order information of the song name information. Only the case will be described.

  First, in step S601, an effective range is set to determine a range of music data that can be included in the reproduction order determination criterion information. As the reproduction order determination criterion information, when the first character constituting the desired name is selected by the user as described above, for example, when “K” of “K” is selected, the effective range is the character “ Is set. On the other hand, when the first character is not selected, the effective range is set as all characters.

  Next, proceeding to step S602, reading the syllable order information of the song name information included in the music data stored in the storage means 110, proceeding to step S603, the syllable order information is set. Judge whether it is within the effective range. If it is determined that it is within the valid range, the process proceeds to step S604, the song IDs included in the music data are stored in the storage means 110 in the order of the Japanese syllabary, and the process proceeds to step S605. On the other hand, if it is determined in step S603 that the alphabetical order information is not within the valid range, the process proceeds directly to step S605.

In step S605, it is determined whether there is music data to be searched. If it is determined that there is music data to be searched, the process returns to step S602 to read the syllable order information of the song title information included in the next music data, and the above processing is repeated. On the other hand, if it is determined that there is no music data to be searched, the process proceeds to step S606, where reproduction order information is created based on the data in the storage means 110 stored in the order of the Japanese syllabary and stored in the storage means 110.
In the case of creating a group composed of the music data for a predetermined number of songs, when the song ID included in the music data is stored in the storage means 110 in step S604, it differs for each predetermined number of songs. Group information should be saved together.

  FIG. 7 is a table schematically showing an example when the reproduction order information created by the reproduction order information creating means 160 is created when the reproduction order judgment criterion information is genre information. As shown in the screen 3 in FIG. 3 above, the genre information as the playback order judgment criterion information is “pops”, “enka”, “vocals”, “jazz”, “rock”, “soul”, etc. You may want to select.

  As shown in FIG. 7, in order to arrange for each genre, the music data needs to include genre information such as “pops” and “vocals”. The reproduction order information creating means 160 can arrange the music data for each genre with reference to the genre information included in the music data.

FIG. 8 is a flowchart showing an operation when the reproduction order information creating means 160 creates the reproduction order information shown in FIG.
First, in step S801, an effective range is set to determine a range of music data that can be included in the reproduction order determination criterion information. When the genre information is selected by the user as the playback order determination criterion information, for example, “pops” from “pops”, “enka”, “vocals”, “jazz”, “rock”, and “soul”. When “Vocal” is selected, the effective range is set to “pops” and “vocal”.

  In step S802, the genre information of the song name information included in the music data stored in the storage unit 110 is read. In step S803, the genre information is within the set effective range. Judge whether or not. If it is determined that it is within the valid range, the process proceeds to step S804, the song ID included in the music data is stored in the storage unit 110 for each genre, and the process proceeds to step S805. On the other hand, if it is determined in step S803 that the genre information is not within the valid range, the process proceeds directly to step S805.

In step S805, it is determined whether there is music data to be searched. If it is determined that there is music data to be searched, the process returns to step S802, the genre information of the song name information included in the next music data is read, and the above process is repeated. On the other hand, if it is determined that there is no music data to be searched, the process proceeds to step S806, where reproduction order information is created based on the data in the storage unit 110 stored for each genre and stored in the storage unit 110.
When creating a group composed of a predetermined number of pieces of the music data, in step S804, when storing the song ID included in the music data in the storage unit 110, the number differs for each predetermined number of songs. Group information should be saved together.

  FIG. 9 is a table schematically showing an example when the reproduction order information created by the reproduction order information creating unit 160 is created when the reproduction order judgment criterion information is the storage date information information. As shown in the screen 4 of FIG. 3 above, the storage date / time information information as the reproduction order determination criterion information may be selected by a user from a table showing years and months.

  As shown in FIG. 9, in order to arrange them in the order of the storage date information, it is necessary that the storage date information is included in the music data. The reproduction order information creating means 160 can arrange the music data in the order of the storage date information by referring to the storage date information information. Further, it is desirable that the storage date / time information indicating the detailed date / time is simplified as “01/01/01” so that the search for arranging the items can be easily performed.

FIG. 10 is a flowchart showing an operation when the reproduction order information creating means 160 creates the reproduction order information shown in FIG.
First, in step S1001, an effective range is set to determine a range of music data that can be included in the reproduction order determination criterion information. When information regarding the date / time of the storage date / time information is selected by the user as the reproduction order determination criterion information, for example, when “01.01.01” is selected, the valid range is from January 1, 2001 to 2001. It is set to be one month until January 31.

  In step S1002, the storage date / time information of the song name information included in the music data stored in the storage unit 110 is read. In step S1003, the storage date / time information is within the set effective range. Judge whether there is. If it is determined that it is within the valid range, the process proceeds to step S1004, the music IDs included in the music data are stored in the storage unit 110 in the order of the storage date, and the process proceeds to step S1005. On the other hand, if it is determined in step S1003 that the storage date / time information is not within the valid range, the process proceeds directly to step S1005.

  In step S1005, it is determined whether there is music data to be searched. If it is determined that there is music data to be searched, the process returns to step S1002, reads the storage date / time information of the song name information included in the next music data, and repeats the above processing. On the other hand, if it is determined that there is no music data to be searched, the process proceeds to step S1006, where reproduction order information is created based on the data in the storage unit 110 stored in the order of the storage date and stored in the storage unit 110.

  When creating a group composed of the music data for a predetermined number of songs, in step S1004, when storing the song ID included in the music data in the storage means 110 at the save date and time, the predetermined number of songs. It is better to store different group information together. Although an example in which the date and time is specified for each month is shown here, it is also possible to specify a day, week, season, year, or the like.

  By the way, if importance is set as identification data of each music data, it is convenient because songs that the user does not want to listen to can be automatically skipped. For that purpose, when the playback order information creating means creates the playback order information, it is preferable to refer to the importance level of each of the music data and reflect the importance level in the creation of the playback order information. When this function is used in combination with each of the music selection functions described above, the user's satisfaction can be further increased.

For example, when 8 levels of importance are set for each music data and the playback order information is created based on the song name information, or when music selection by the conventional random playback function is performed, the level of importance is predetermined. Only music data that is greater than or equal to the value, for example, importance 6 or higher is selectively selected, or a probability corresponding to the importance, for example, music with a probability of 60% is selected for importance 6 is executed. Note that it is desirable that the importance is changed by a simple operation of the user during the reproduction of the music. For example, when a song just before or during playback is skipped, the importance value corresponding to that song is lowered, and when a song is repeated immediately after or during playback, the importance value corresponding to that song is reduced. To raise. Alternatively, the user may directly operate via the operation means, and the control means may receive the operation signal from the operation means and change the importance value corresponding to the music being reproduced.
As described above, according to the playback device according to the embodiment (1), music selection / playback can be performed with a sufficiently simple operation for in-vehicle use, and a large amount of stored music data can be effectively used. can do.

It is the block diagram which showed roughly the principal part of the reproducing | regenerating apparatus concerning Embodiment (1) of this invention. 5 is a table schematically showing an example of a data structure and reproduction order information of music data used in the reproduction apparatus according to the embodiment (1). It is the figure which showed notionally an example of the operation means and notification means which are used for the reproducing | regenerating apparatus concerning Embodiment (1). 4 is a flowchart showing the operation of the control means in the playback apparatus shown in FIG. 3. Schematic example when the reproduction order information created by the reproduction order information creation means is created when the reproduction order judgment reference information is (a) song name information and (b) artist name information. It is the table shown in. 6 is a flowchart showing an operation when the reproduction order information creating means creates the reproduction order information shown in FIG. 5 (a) or (b). 10 is a table schematically showing an example when the reproduction order information created by the reproduction order information creating means is created when the reproduction order judgment reference information is genre information. It is the flowchart which showed the operation | movement when a reproduction | regeneration order information preparation means produces the reproduction | regeneration order information shown in FIG. 7 is a table schematically showing an example when the reproduction order information created by the reproduction order information creating means is created when the reproduction order judgment reference information is storage date information information. 10 is a flowchart showing an operation when a reproduction order information creating unit creates the reproduction order information shown in FIG. 9.

Explanation of symbols

100 control means 110 storage means 120 reading means 130 reproduction means 140 operation means 150 communication means 160 reproduction order information creation means 170 reproduction control means 180 notification means

Claims (4)

In a playback device for playing back music data stored in a storage means,
Based on the storage date and time information stored in the storage means, the music data stored within a certain period is specified,
A playback apparatus comprising group creation means for creating a plurality of groups by dividing music data stored within the certain period into groups. The group creating means
Based on the storage date and time information stored in the storage means, the music data stored within the certain period is specified,
Storing identification information for identifying music data stored within the certain period,
2. The playback apparatus according to claim 1, wherein a group is created by storing group information for distinguishing the group in association with the stored identification information. Replay order information creating means for creating play order information by arranging the groups created by the group creating means;
The playback control means for playing back music data stored in the storage means based on the playback order information created by the playback order information creating means. 2. The playback device according to 2. A playback device that plays back music data stored in the storage means,
A function for identifying music data stored within a certain period based on storage date information stored in the storage means;
A reproduction program that realizes a function of dividing music data stored within a certain period into groups and creating a plurality of groups.

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