JP2010257533A - Data reproducing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve operability when a user selects data using a remote controller. <P>SOLUTION: The audio system 1 includes: a component 2 for reproducing music, and a remote controller 3 for transmitting an operation instruction for music reproduction to the component 2 via a communication part 37 by operating an operation part 35. The component 2 includes: a communication part 27; and a CPU 21 for generating management database information to manage music information on music that can be reproduced by the device, and transmitting the management database information to the remote controller 3 via the communication part 27. The remote controller 3 includes: a display part 34; the communication part 37; and a CPU 31 for receiving the management database information via the communication part 37, displaying music information (name of music) contained in the received management database information on the display part 34, and transmitting an instruction to reproduce music corresponding to the name of music selected by the displayed music names to the component 2 via the communication part 37. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a data reproduction system.

  Conventionally, an audio system to which a data reproduction system is applied is known. The audio system includes an audio device that plays music and a remote control device that selects and plays music.

  In an audio system, there are various forms for selecting and playing music. For example, an external device (for example, DAP (Digital Audio Player)) is connected to the audio apparatus, and a music piece in the connected DAP is selected and reproduced by a remote control apparatus.

  The operation in this embodiment will be specifically described. First, when a DAP is connected to an audio device, the file structure (file system) of the DAP is analyzed by the audio device. Then, folders and music files existing on the analyzed file system are detected. Then, music information related to the detected folder or music file (for example, information such as the artist name and title name of the music) is displayed on the display unit of the audio device. Then, music information displayed on the display unit of the audio device is referred to by the user. Then, an operation instruction (selection operation and reproduction operation) of the music that the user wants to reproduce is performed via the remote control device. Then, the operation instruction is transmitted to the audio device, and the music is reproduced.

  Also known is a form in which a DAP equipped with an uncompressed PCM (Pulse Code Modulation) transmission method transmitter (hereinafter referred to as a transmitter) is connected to an audio device, and a song in the connected DAP is selected and played. Yes. In this case, the DAP equipped with the transmitter functions as a remote control device. Specifically, the music information is displayed on the display unit of the DAP, and the displayed music information is referred to by the user. Then, the operation instruction (selection operation and reproduction operation) of the music that the user wants to reproduce is performed via the DAP. Then, the selected music is decoded by a transmitter attached to the DAP, and the decoded audio signal is transmitted to the audio device to reproduce the music.

  In addition, music management data is acquired from a portable device connected to the home device, music data is randomly selected from the acquired music management data, and the selected music data is transmitted to the portable device for easy multi-functioning. An audio system to be realized is also known (see, for example, Patent Document 1).

JP 2007-172792 A

However, in the case where the operation instruction for the music is performed by the remote control device, the user operates the remote control device while referring to the display unit of the audio device. For this reason, it is necessary to operate the audio device and the remote control device while alternately checking them, which requires time and effort.
Also, in the case of selecting and playing music stored in a DAP equipped with a transmitter, since the transmitter is attached to the DAP, the DAP becomes heavy and it is difficult for the user to operate the DAP (remote control device). In addition, there is a problem that only the music stored in the DAP can be operated.
For this reason, when music selection (data selection) is performed using a remote control device, there has been a demand for realizing a technique for improving user operability.

  The subject of this invention is improving a user's operativity, when selecting data using a remote control.

In order to solve the above-described problem, a data reproduction system according to claim 1 is provided.
In a data reproduction system comprising: a reproduction device that reproduces data; and a remote control device that operates and transmits an operation instruction related to reproduction of the data by operating a remote operation unit to the reproduction device;
The playback device
A first communication unit for communicating with the remote control device;
A first control unit that creates management database information for managing playback information related to data that can be played back by the device, and transmits the created management database information to the remote control device via the first communication unit And comprising
The remote control device is
A display unit;
A second communication unit for communicating with the playback device;
The management database information is received via the second communication unit, the reproduction information included in the received management database information is displayed on the display unit, and selected from the displayed reproduction information A second control unit that transmits a reproduction instruction of the data corresponding to reproduction information to the reproduction device via the remote control unit;
Is provided.

The invention according to claim 2 is the data reproduction system according to claim 1,
The first controller is
It is determined whether or not the management database information included in the remote control device needs to be updated. When the update is necessary, the management database information is transmitted to the remote control device via the first communication unit.

The invention according to claim 3 is the data reproduction system according to claim 1 or 2,
The first controller is
When an external device is connected to the playback device, playback information is acquired from the connected external device, the management database information is reconfigured based on the acquired playback information, and the reconfigured management is performed. Database information is transmitted to the remote control device via the first communication unit.

The invention according to claim 4 is the data reproduction system according to any one of claims 1 to 3,
The second controller is
Based on the management database information, a selection list composed of selection information for selecting the reproduction information is created, the created selection list is displayed on the display unit, and selected from the displayed selection list The reproduction information included in the selected information is displayed on the display unit.

  ADVANTAGE OF THE INVENTION According to this invention, when selecting data using a remote control, a user's operativity can be improved.

1 is a diagram showing a schematic configuration of an audio system according to the present invention. 1 is a diagram showing a schematic configuration of an audio system according to the present invention. It is a figure which shows the internal structure of a component. It is a figure which shows the internal structure of a remote control. It is a figure which shows an example of music information. It is a figure which shows an example of management database information. It is a flowchart which shows the flow of a component side operation | movement process. It is a flowchart which shows the flow of remote control side operation processing. It is a flowchart which shows the flow of a 1st update process. It is a figure which shows an example of the information displayed when a folder is selected from the selection list. It is a figure which shows an example of the information displayed when an artist is selected from the selection list. It is a flowchart which shows the flow of a 2nd update process. It is a flowchart which shows the flow of a 3rd update process. It is a flowchart which shows the flow of a 1st new device addition process. It is a flowchart which shows the flow of a 2nd new device addition process.

  Embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. However, the scope of the invention is not limited to the illustrated examples.

  An embodiment according to the present invention will be described with reference to FIGS. First, an audio system to which a data reproduction system according to the present invention is applied will be described with reference to FIG. 1 and FIG. The audio system 1 shown in FIGS. 1 and 2 includes a component 2 as a playback device that plays back data (music), a remote controller 3 as a remote control device that remotely controls the component 2 for operations related to music playback, It is configured with.

  The audio system 1 shown in FIG. 1 shows that the component 2 and the remote controller 3 are connected by wire communication, and the component 2 is connected by DAP. Also, the audio system 1 shown in FIG. 2 indicates that the component 2 and the remote controller 3 are connected by wireless communication, and the component 2 is connected by DAP.

  Next, the internal configuration of the component 2 will be described with reference to FIG. As shown in FIG. 3, the component 2 includes a CPU (Central Processing Unit) 21 as a first control unit, a ROM (Read Only Memory) 22, a RAM (Random Access Memory) 23, a display unit 24, and an operation. A unit 25, a storage unit 26, a communication unit 27 as a first communication unit, and a connection unit 28 are configured.

  The CPU 21 centrally controls each part of the component 2. The CPU 21 develops a program designated from the system program and various application programs stored in the ROM 22 in the RAM 23, and executes various processes in cooperation with the program expanded in the RAM 23.

  Further, the CPU 21 creates management database information for managing reproduction information (music information) relating to data (music) that can be reproduced by the component 2, and uses the created management database information via the communication unit 27 to control the remote controller 3. Send to. Specifically, the CPU 21 determines whether or not the management database information included in the remote controller 3 needs to be updated, and transmits the management database information to the remote controller 3 via the communication unit 27 when the update is necessary. .

  Further, when an external device (new device) is connected to the component 2, the CPU 21 acquires music information from the connected new device, and reconfigures management database information based on the acquired music information. Then, the reconfigured management database information is transmitted to the remote controller 3 via the communication unit 27.

  The ROM 22 is a rewritable recording medium for storing information to be executed by the CPU 11. Specifically, the ROM 22 stores a component side operation program, a first update program, a second update program, a third update program, a first new device addition program, and a second new device program, which will be described later. .

  The RAM 23 is a volatile memory. The RAM 23 has a work area for storing various programs to be executed and data related to these various programs.

  The display unit 24 is configured by an LCD (Liquid Crystal Display) or the like, and performs screen display according to a display control signal input from the CPU 21.

  The operation unit 25 includes various input keys and the like, receives operation inputs of various information from the user from the various input keys, and outputs the information to the CPU 21.

  The storage unit 26 includes an HDD (Hard Disk Drive) having a magnetic recording medium, a flash memory, and the like, and stores various programs and various data so that they can be read from and written to the recording medium. Specifically, the storage unit 26 stores music information and management database information described later.

  The communication unit 27 is connected to the remote controller 3 by wired or wireless communication and transmits / receives information. The connection unit 28 is connected to the DAP through a line, and transmits and receives information. The communication unit 27 includes a function of receiving an operation signal from the remote controller 3 in addition to a communication function related to transmission / reception (transmission / reception) of management database information. These functions may use different communication means or may use a common communication means.

  Next, the internal configuration of the remote controller 3 will be described with reference to FIG. As shown in FIG. 3, the remote controller 3 includes a CPU 31 as a second control unit, a ROM 32, a RAM 33, a display unit 34, an operation unit 35 as a remote operation unit, a storage unit 36, and a remote operation unit. And a communication unit 37. The CPU 31, ROM 32, RAM 33, display unit 34, operation unit 35, storage unit 36 and communication unit 37 are respectively the CPU 21, ROM 22, RAM 23, display unit 24, operation unit 25, storage unit 26 and communication unit 27 shown in FIG. It is the same composition. Hereinafter, different parts will be mainly described.

  The CPU 31 receives the management database information via the communication unit 37 and causes the display unit 34 to display music information included in the received management database information. Then, the CPU 31 transmits an instruction (operation signal) related to the reproduction of the music corresponding to the music information selected from the displayed music information to the component 2 via the communication unit 37.

  The ROM 33 stores a remote control operation program described later. The storage unit 36 stores management database information described later.

  The operation unit 35 receives an input of an operation instruction related to music reproduction and outputs the information to the CPU 31.

  The communication unit 37 transmits operation instructions (instructions such as “play”, “stop”, “pause”, “fast forward”, “fast reverse”, etc.) of the music to the component 2. Specifically, the communication unit 37 has a communication function of transmitting an instruction to reproduce a remotely operated music by wired communication or wireless communication (Bluetooth, transfer jet, etc.). Further, the communication unit 37 has a communication function for transmitting to the component 2 a remote control operation instruction other than the music reproduction instruction (for example, an instruction such as “stop”, “pause”, “fast forward”, “fast reverse”, etc.). The function for transmitting the music playback instruction and the function for transmitting the remote control operation instruction may use different communication means, or may use a common communication means.

Next, music information as reproduction information will be described. The music information is information related to music that can be reproduced by the component 2. FIG. 5 is a diagram showing an example of music information. As shown in FIG. 5, the music information includes ID (music ID), artist name, album name, title name (music name), track number, mood, key, language, lyrics, It has a genre, the number of times of reproduction, an image, a year of announcement (announcement year), a date of recording, a bit rate, and a FolderLink ID (parent ID, child ID).
The music ID is information for identifying the music. The FolderLink ID (parent ID, child ID) corresponds to a parent ID and child ID described later.

Next, management database information will be described. The management database information is a database for managing music information. The management database information does not include music sound data. FIG. 6 is a diagram showing an example of management database information. As shown in FIG. 6, the management database information includes an ID (music ID), an artist name, an album name, a title name (music name), a FolderLink parent ID (hereinafter referred to as a parent ID), and a FolderLink child ID ( In the following, child IDs) and others (etc., for example: announcement year, genre, etc.) are included and associated with each other.
The parent ID is information for identifying a folder in the upper hierarchy of the folder in which the music is stored. The child ID is information for identifying a folder in a lower hierarchy of the folder in which the music is stored.

  Next, the operation of the audio system 1 will be described with reference to FIGS. First, the component side operation process will be described with reference to FIG. The component side operation process is a process of receiving an operation signal from the remote controller 3 and causing the component 2 to execute each operation based on the received operation signal.

  For example, in the component 2, triggered by the reception of the operation signal from the remote control 3 via the communication unit 27 as a trigger, the component-side operation program read from the ROM 22 and appropriately expanded in the RAM 23 and the cooperation of the CPU 21. The component side operation process is executed by the operation.

  First, it is determined whether or not an operation signal from the remote controller 3 has been received (step S11). Specifically, the determination of this step is performed based on whether or not the operation signal transmitted in step S23 or step S24 of the remote-control-side operation process described later is received via the communication unit 27.

  If it is determined in step S11 that no operation signal has been received (step S11; NO), the process proceeds to step S11. If it is determined in step S11 that an operation signal has been received (step S11; YES), it is determined whether or not the received operation signal includes a song ID (step S12).

  If it is determined in step S12 that the music signal ID is included in the operation signal (step S12; YES), the operation of the music specified by the ID is performed based on the operation signal (step S13). Specifically, the music having the music ID included in the operation signal is selected, and the selected music is played back.

  After execution of step S13, the component side operation process is terminated. In step S12, when it is determined that the music signal ID is not included in the operation signal (step S12; NO), an operation based on the operation signal is performed (step S14). Specifically, an operation is performed by receiving operation signals such as “play”, “stop”, “pause”, “fast forward”, and “fast reverse” from the remote controller 3. For example, when a “play” operation signal is received from the remote controller 3 when the CD is in the standby state after the CD is inserted into the component 2, the playback operation is performed from the first song of the CD. Further, when an operation signal such as “stop”, “pause”, “fast forward”, “fast reverse” or the like is received from the remote controller 3 while playing any music, an operation based on the received operation signal is performed on the music being played. Is done. After execution of step S14, the component side operation process is terminated.

  Next, with reference to FIG. 8, the remote controller side operation process executed by the remote controller 3 will be described. The remote control side operation process is a process of transmitting an operation signal based on information input from the user via the operation unit 35 to the component 2.

  For example, in the remote controller 3, the remote control operation program read from the ROM 32 and appropriately expanded in the RAM 33 triggered by the input of the execution instruction of the remote control operation process via the operation unit 35, and the cooperation of the CPU 31. The remote control side operation process is executed by the operation.

  First, it is determined whether or not there is a user operation (step S21). Specifically, the determination in this step is performed based on whether or not the CPU 31 has received information input by the user via the operation unit 35.

  If it is determined in step S21 that there is no user operation (step S21; NO), the process proceeds to step S21. If it is determined in step S21 that there is a user operation (step S21; YES), it is determined whether or not the operation is related to music designation (step S22). For example, whether or not an operation input for selecting (designating) user-desired music information is selected from the music information displayed on the display unit 34 (music names of music files shown in FIGS. 10 and 11 described later). Based on this, determination of this step is performed.

  If it is determined in step S22 that the operation is related to music designation (step S22; YES), the music ID corresponding to the music information selected in step S22 is read from the management database information. Then, an operation signal including the read music ID is transmitted to the component 2 (step S23). Specifically, an operation signal including a music ID and instructing reproduction of a music having the music ID is transmitted to the component 2. After execution of step S23, the remote control operation process is terminated.

  If it is determined in step S22 that the operation is not related to music designation (step S22; NO), an operation signal is transmitted to component 2 (step S24). Specifically, operation signals (operation signals such as “play”, “stop”, “pause”, “fast forward”, “fast reverse”, etc.) that are not operations related to music designation are transmitted to the component 2. After execution of step S24, the remote control operation process is terminated.

  Next, the first update process executed by the component 2 will be described with reference to FIG. The first update process is a process for updating the database information of the remote controller 3 when the component 2 and the remote controller 3 are connected by wire and the database information of the remote controller 3 needs to be updated.

  The wired connection here is not limited to a wired connection using a connection cord, but may be a connection by installing the remote controller 3 to a cradle installed or connected to the component 2.

  For example, in the component 2, a first update program read from the ROM 22 and appropriately expanded in the RAM 23, triggered by the input of the execution instruction of the first update process by the user via the operation unit 25, A first update process is executed in cooperation with the CPU 21.

  First, it is determined whether or not the remote control 3 is wired (step S31). Specifically, the determination of this step is performed based on whether or not the CPU 21 has received a signal indicating that it is connected to the remote control 3 via the communication unit 27.

  In step S31, when it is determined that the remote controller 3 is not wired (step S31; NO), the process proceeds to step S35 described later. If it is determined in step S31 that the remote controller 3 is connected by wire (step S31; YES), it is determined whether or not the management database information of the remote controller 3 needs to be updated (step S32). Specifically, the time information of the management database information possessed by the component 2 is compared with the time information of the management database information possessed by the remote control 3, and the determination of this step is made based on whether or not the time information matches. Is done. The time information is information indicating the time when the management database information is updated. For example, if the time information is the same, there is no change in the music that can be played back by the component 2, so it is determined that updating of the management database information of the remote control 3 is unnecessary. In addition, when the time information of the management database information held by the component 2 is new with respect to the management database information held by the remote controller 3, there is a change in the music that can be played by the component 2 (the number of music that can be played has increased or decreased). Thus, it is determined that the management database information of the remote controller 3 needs to be updated.

  If it is determined in step S32 that the management database information of the remote controller 3 needs to be updated (step S32; YES), the management database information is transmitted to the remote controller 3 via the communication unit 27 (step S33).

  In step S32, when it is determined that the management database information of the remote controller 3 is not required to be updated (step S32; NO), or after the execution of step S33, it is determined whether the connection of the remote controller 3 has been released (step S34). ). Specifically, the determination of this step is performed based on whether or not the CPU 21 has received a signal indicating that the connection with the remote control has been released via the communication unit 27.

  In step S34, when it is determined that the connection of the remote controller 3 is not released (step S34; NO), the process proceeds to step S34. If it is determined in step S34 that the remote control 3 is disconnected (step S34; YES), the component operation process is executed (step S35). That is, the component operation process described with reference to FIG. 7 is executed. After execution of step S35, the first update process is terminated. When the first update process is completed, the wired connection between the component 2 and the remote control 3 is released (the wired connection is removed), and between the component 2 and the remote control 3 by infrared rays or the like, as in a normal remote control. Wireless communication is performed.

  Here, processing on the remote controller 3 side when the first update processing is performed will be described. When the first update process is performed, the remote controller 3 receives the management database information transmitted in step S33 of the first update process, and stores the received management database information in the storage unit 36. . Then, a selection list for selecting music information is created based on the stored management database information. Specifically, a selection list including selection information such as “folder name”, “artist name”, “album name”, “announcement year”, and “genre” is displayed on the display unit 34. Then, the displayed selection list is referred to by the user, and information desired by the user is selected from the selection list.

  Here, referring to FIG. 10, when “Folder” is selected from the selection list via the operation unit 25 by the user, a display screen that displays the music names of the music files included in “Folder”. Will be described. FIG. 10 shows an example of a display screen that displays the tree structure of the Root (1) folder. The folder tree structure indicates the structure of a folder associated with a certain folder.

  As shown in FIG. 10, the “2”, “5”, and “8” folders are associated with the Root (1) folder as child folders. Here, “2”, “5”, and “8” correspond to child IDs. In each folder, the name (folder name) given to the folder is displayed together with the child ID.

  Further, as shown in FIG. 10, it is indicated that “10” file (music file whose music name is “10”) is stored in the “2” folder.

  That is, the folder associated with the Root (1) folder and the music stored in the folder are displayed as a tree structure, and the folder name and the music name are displayed with the names given to the respective folders and music files. . Then, the displayed tree structure is referred to by the user, and an operation input for selecting a song name desired by the user is performed.

  Next, with reference to FIG. 11, when “Artist” is selected from the selection list via the operation unit 35 by the user, a display screen that displays the name of the music file included in “Artist” is displayed. explain. FIG. 11 is a diagram showing an example of a display screen that displays a list of artist names, artist song album names, and song file song names. For example, when the user inputs an operation for selecting an artist “A”, a list of song album names “A” is displayed. When an operation input for selecting a song album name desired by the user is performed from the displayed song album names, a list of song names stored in the selected song album name is displayed. Then, an operation input for selecting a song name desired by the user from the displayed list of song names is performed.

  As described with reference to FIGS. 10 and 11, an operation input for selecting a song name desired by the user from among the song names of the song file displayed on the display unit 34 is performed, so that an operation related to song designation from the user. Is determined (ie, step S22 of the remote control operation process; YES is determined), and the subsequent process (step S23 or S24 of the remote control operation process) is executed.

  Next, with reference to FIG. 12, the second update process executed by the component 2 will be described. The second update process is a process of updating the database information of the remote controller 3 when the component 2 and the remote controller 3 are wirelessly connected and the database information of the remote controller 3 needs to be updated.

  Assume that the component 2 and the remote controller 3 are wirelessly connected in advance by Bluetooth (registered trademark) or the like.

  For example, in the component 2, a second update program read from the ROM 22 and appropriately expanded in the RAM 23, triggered by the input of the execution instruction of the second update process by the user via the operation unit 25, The second update process is executed in cooperation with the CPU 21.

  First, it is determined whether or not a wireless connection with the remote controller 3 has been established (step S41). Specifically, the determination of this step is performed based on whether or not the CPU 21 has received a signal indicating that the wireless connection with the remote controller 3 has been established via the communication unit 27.

  Steps S42 and S43 are the same as steps S32 and S33 of the first update process, respectively. Step S44 is the same as step S35 of the first update process. After execution of step S44, the second update process is terminated.

  When the second update process is performed, the remote control 3 side performs the same process as the remote control 3 side process when the first update process is performed.

  Next, a third update process executed by the component 2 will be described with reference to FIG. The third update process is a process of updating the database information of the remote controller 3 when the component 2 and the remote controller 3 can communicate by short-range wireless communication and the database information of the remote controller 3 needs to be updated.

  In this case, the component 2 and the remote controller 3 perform wireless communication via a device (not shown) to which a short-range wireless communication connection technology (transfer jet) is applied.

  For example, in cooperation with the CPU 21, the third update program read from the ROM 22 and appropriately expanded in the RAM 23 is triggered by the input of the execution instruction of the third update process by the user via the operation unit 25. The third update process is executed by the operation.

  First, it is determined whether or not a short-distance wireless connection is established with the remote controller 3 (step S51). Specifically, the remote control 3 is held over a device to which the transfer jet is applied by the user, and based on whether or not the CPU 21 has received a signal indicating that the remote control 3 is connected to a short-distance wireless connection, A determination is made.

  Steps S52 and 53 are the same as steps S32 and S33 of the first update process, respectively. Step S54 is the same as step S35 of the first update process. After execution of step S54, the third update process is terminated.

  When the third update process is performed, the remote controller 3 performs the same process as the process on the remote controller 3 when the first update process is performed.

  Next, with reference to FIG. 14, the first new device addition process executed in the component 2 will be described. The first new device addition process is a process for reconfiguring management database information when a new device is added (connected) to a component.

  For example, in the component 2, the first new device read from the ROM 22 and appropriately expanded in the RAM 23 is triggered by the input of the execution instruction of the first new device addition process by the user via the operation unit 25. A first new device addition process is executed in cooperation with the addition program and the CPU 21.

  First, it is determined whether or not a new device has been added (step S61). Specifically, it is determined whether or not a new device (CD, DAP, memory card, USB memory, external HDD, etc.) has been added (connected, switched, etc.) to component 2. For example, when the DAP is connected to the component 2, the determination of this step is performed based on whether or not the CPU 21 has received a signal indicating that the DAP is connected to the component 2.

  If it is determined in step S61 that a new device has not been added (step S61; NO), the first new device addition process is terminated.

  If it is determined in step S61 that a new device has been added (step S61; YES), management database information including the new device is reconfigured (step S62). Specifically, the music information held by the new device is acquired from the new device, and the management database information is reconfigured by performing processing for reflecting the acquired music information on the management database information. .

  After execution of step S62, an instruction to update and display database information is given (step S63). Specifically, “Please connect the remote control”, “Touch the remote control”, etc. are displayed on the display unit 24 of the component 2. By this display, it is possible to prompt the user to update the management database information by wired connection of the remote controller 3 or to update the management database information with the transfer jet. At this time, when the component 2 and the remote controller 3 can communicate with each other by infrared rays or the like, the above display may be displayed on the display unit 34 on the remote controller 3 side.

  After execution of step S63, the first update process or the second update process is executed (step S64). For example, when the component 2 and the remote controller 3 are connected by wire, the first update process (FIG. 9) is executed. In addition, when the component 2 and the remote controller 3 are short-distance wirelessly communicated, a third update process (FIG. 13) is executed. After execution of step S64, the first new device addition process is terminated.

  Next, with reference to FIG. 15, the second new device addition process executed in the component 2 will be described. The second new device addition process is a process of reconfiguring management database information when a new device is connected to the component 2 when the component 2 and the remote controller 3 are wirelessly connected.

  Assume that the component 2 and the remote controller 3 are wirelessly connected in advance by Bluetooth (registered trademark) or the like.

  For example, in component 2, when a new device is connected as a trigger, the second new device addition program read out from ROM 22 and appropriately expanded in RAM 23 and the second new device addition in cooperation with CPU 21 Processing is executed.

  Steps S71 and 72 are the same as steps S61 and S62 of the first new device addition process, respectively. After execution of step S72, the second update process (FIG. 12) is executed (step S73). After execution of step S73, the second new device addition process is terminated.

  As described above, according to the present embodiment, the remote controller 3 causes the display unit 34 to display the music information (the music file name of the music file) included in the management database information received from the component 2, and includes the displayed music name. Is transmitted to the component 2 through the communication unit 37. For this reason, the user can select a desired music piece with reference to the music name displayed on the display unit 34 of the remote controller and play the selected music piece on the component 2. There is no need to select a music piece by referring to the display unit 24 on the component 2 side when making a selection. That is, music selection can be performed without requiring the user's trouble, and the operability of the user can be improved.

  Further, the component 2 can transmit the management database information to the remote control 3 when the management database information of the remote control 3 needs to be updated.

  Further, when an external device is connected to the component 2 (when a new device is added), the management database information can be reconfigured and the reconfigured management database information can be transmitted to the remote controller 3.

  Further, the user can select desired selection information (for example, folder name) from the selection list displayed on the display unit 34 of the remote controller 3. In addition, since the music names included in the folder having the selected folder name are displayed on the display unit 34, the user can select a desired music and play the selected music on the component 2.

  In addition, since the remote controller 3 can acquire management database information, the remote controller 3 can have a UI (user interface) unique to the remote controller such as an artist list, a change in name order, and a song name list regardless of the model of the DAP terminal. For example, even if the name order of an artist in the DAP has a UI of alphabet, katakana, hiragana, kanji order, the remote control 3 has a UI of kanji, hiragana, katakana, alphabetical order. Can do. In addition, the remote control can have a UI such as a jacket image display or a list in order of the number of times of reproduction.

  In addition, the user can use the user's original UI by selecting desired information from the management database information.

  Further, since the remote controller 3 transmits the operation signal to the component 2, the communication data amount can be remarkably reduced as compared with the uncompressed transmission method in which the audio signal is transmitted after being decoded by the transmitter.

  Further, since the music information is displayed on the display unit 34 of the remote controller 3, the user can select the music name even in the component 2 that does not have the display unit 24.

  The descriptions in the above embodiments are examples of the audio system according to the present invention, and the present invention is not limited to this.

  For example, the information displayed on the display unit 34 has been described with reference to FIGS. 10 and 11, but is not limited thereto. For example, when “album name”, “announcement year”, or “genre” is selected from the selection list by the user, the selected information may be displayed on the display unit 34.

  The display unit 34 of the remote controller 3 may be configured integrally with the touch panel. Thereby, the user can select a song name by a touch operation.

  Moreover, it is good also as applying the display which removed the display part 24 of the component 2 instead of the remote control 3. FIG. In this case, since the detached display is applied in place of the remote controller 3, the audio system 1 can be constructed with the detached display and the component 2.

  Also, since the music information is displayed on the display unit 34 of the remote controller 3, the audio system 1 can be constructed even if the component 2 has only necessary operation buttons (play button, stop button, etc.). it can.

  Further, the management database information may be created from the music information stored in the storage unit 26 of the component 2.

  Further, when a plurality of new devices are connected to the component 2, a new device individual list (management database information) may be transmitted to the remote controller 3, and the remote controller 3 may hold (store) the new device individual list.

  In the above embodiment, the data reproduction system is applied to an audio system. However, the present invention is not limited to this. For example, the data reproduction system may be applied to a moving image reproduction system. In this case, the moving image playback system includes a moving image playback device that plays back a moving image such as a DVD as data, and a remote control device that remotely operates the moving image playback device. In this case, the management database information is configured as a database for managing reproduction information related to a moving image (for example, a title name (moving image name) of the moving image).

  In addition, when a moving image such as a DVD is handled, a start image of each chapter (chapter) of the moving image may be transmitted to the remote controller 3. Thereby, the start image of each chapter can be selected as a preview image by the remote controller 3.

  In addition, the detailed structure and detailed operation of the audio system 1 in the present embodiment can be changed as appropriate without departing from the spirit of the present invention.

1 Audio system 2 Component 3 Remote control 11, 21 CPU
12,22 ROM
13,23 RAM
24, 34 Display unit 25, 35 Operation unit 26, 36 Storage unit 27, 37 Communication unit 28 Connection unit

Claims (4)

In a data reproduction system comprising: a reproduction device that reproduces data; and a remote control device that operates and transmits an operation instruction related to reproduction of the data by operating a remote operation unit to the reproduction device;
The playback device
A first communication unit for communicating with the remote control device;
A first control unit that creates management database information for managing reproduction information related to data that can be reproduced by the own device, and transmits the created management database information to the remote control device via the first communication unit And comprising
The remote control device is
A display unit;
A second communication unit for communicating with the playback device;
The management database information is received via the second communication unit, the reproduction information included in the received management database information is displayed on the display unit, and selected from the displayed reproduction information A second control unit that transmits a reproduction instruction of the data corresponding to reproduction information to the reproduction device via the remote control unit;
A data reproduction system comprising: The first controller is
It is determined whether or not the management database information included in the remote control device needs to be updated, and when the update is necessary, the management database information is transmitted to the remote control device via the first communication unit. Item 4. The data reproduction system according to Item 1. The first controller is
When an external device is connected to the playback device, playback information is acquired from the connected external device, the management database information is reconfigured based on the acquired playback information, and the reconfigured management is performed. The data reproduction system according to claim 1 or 2, wherein database information is transmitted to the remote control device via the first communication unit. The second controller is
Based on the management database information, a selection list composed of selection information for selecting the reproduction information is created, the created selection list is displayed on the display unit, and selected from the displayed selection list The data reproduction system according to any one of claims 1 to 3, wherein the reproduction information included in the selected information is displayed on the display unit.

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