JP7019464B2 - Integrated list providing device, playback system, and integrated list providing program - Google Patents

Description

The present invention relates to an integrated list providing device, a reproduction system including the integrated list providing device, and an integrated list providing program.

One of a plurality of playback devices connected to each other via a network has one playback device, such as reproducible music data or video data recorded in a recording device in each playback device (hereinafter referred to as "reproducible data"). There is known a technique for collecting the metadata of the above and creating a playlist (hereinafter referred to as "integrated list") in which the metadata is integrated.
For example, in Patent Document 1, metadata acquired from a plurality of devices having music data is registered, and at least the metadata acquired from a BT (Bluetooth (registered trademark)) audio device is the BT audio device and the vehicle. An in-vehicle audio device that has a storage unit that retains registration even after the communication connection with an audio device is disconnected and creates a playlist based on the metadata stored in the storage unit is disclosed.

Japanese Unexamined Patent Publication No. 2011-98661.

In recent years, there has been a demand for sharing reproducible data recorded in a recording device in each replay device among a plurality of replay devices connected to each other via a network so that the reproducible data can be replayed by each replay device. In response to this request, a playlist (integrated list) in the conventional technique as disclosed in Patent Document 1 is shared by each playback device, and each playback device refers to the integrated list and is reproduced in each playback device. It is conceivable to make playable data selectable.
However, some recording devices in the playback device cannot be simultaneously read from a plurality of playback devices. The conventional technique does not provide a device for reproducibly sharing reproducible data recorded in a recording device that cannot be simultaneously read from a plurality of playback devices among a plurality of playback devices. There was a point.

The present invention is for solving the above-mentioned problems, and the reproducible data recorded in a recording device that cannot be simultaneously read from a plurality of playback devices is reproducibly shared among the plurality of playback devices. It is intended to provide an integrated list providing device for the purpose.

The integrated list providing device according to the present invention includes first metadata indicating first reproducible data recorded in a first recording device that cannot be simultaneously read from a plurality of playback devices, and simultaneous playback from the plurality of playback devices. The second metadata indicating the second reproducible data recorded in the second reproducible recording device, the metadata acquisition unit for acquiring the second metadata, and the first and second metadata acquired by the metadata acquisition unit are integrated. A list generator that generates an integrated list, which is a list that is referenced by each playback device in a plurality of playback devices to select data to be played back from the first or second playable data, and each playback device. The first reproduction is performed in the reproduction information acquisition unit for acquiring the reproduction information indicating the reproduction status of the first or second reproducible data from, and the reproduction information acquired by the reproduction information acquisition unit from one reproduction device in a plurality of reproduction devices. With a list processing unit that processes the integrated list to generate a processed integrated list to limit the reproduction of the first reproducible data by other playback devices in multiple playback devices when information indicating possible data exists. It is characterized by including a list providing unit that provides a processed integrated list generated by the list processing unit to another reproduction device.

According to the present invention, it is provided an integrated list providing device for reproducibly sharing reproducible data recorded in a recording device that cannot be read from a plurality of playback devices at the same time among a plurality of playback devices. Can be done.

It is a block diagram which shows the structure of the reproduction system to which the integrated list providing apparatus which concerns on Embodiment 1 is applied. 2A and 2B are diagrams showing an example of the hardware configuration of the integrated list providing device according to the first embodiment. 3A, 3B, and 3C are examples of a case where the reproduction system is mounted on a vehicle. It is a flowchart explaining the process at the time of operation start of the integrated list providing apparatus which concerns on Embodiment 1. FIG. This is an example of an integrated list generated by the integrated list providing device according to the first embodiment. It is a flowchart explaining the process of the integrated list providing apparatus which concerns on Embodiment 1. FIG. 7A is an example of reproduction information acquired by the integrated list providing apparatus according to the first embodiment. FIG. 7B is an example of a processed integrated list processed by the integrated list providing device according to the first embodiment. It is a flowchart explaining the process of the integrated list providing apparatus which concerns on Embodiment 1. 9A and 9B are examples of reproduction information in the modified example of the first embodiment. It is a flowchart explaining the processing of the integrated list providing apparatus which concerns on the modification of Embodiment 1. FIG. FIG. 11A is an example of reproduction information acquired by the integrated list providing device according to the modified example of the first embodiment. FIG. 11B is an example of a processed integrated list processed by the integrated list providing device according to the modified example of the first embodiment. FIG. 12A is an example of reproduction information acquired from the reproduction apparatus by the integrated list providing apparatus according to the second embodiment. FIG. 12B is an example of a processed integrated list processed by the integrated list providing device according to the second embodiment. It is a flowchart explaining the process of the integrated list providing apparatus which concerns on Embodiment 2. It is a flowchart explaining the process of the integrated list providing apparatus which concerns on Embodiment 2. FIG. 15A is an example of reproduction information acquired from the reproduction apparatus by the integrated list providing apparatus according to the second embodiment. FIG. 15B is an example of a processed integrated list processed by the integrated list providing device according to the second embodiment. FIG. 16A is an example of a first playlist generated by the first playback device according to the third embodiment. FIG. 16B is an example of a second playlist generated by the second playback device according to the third embodiment. FIG. 16C is a diagram in which the first playlist shown in FIG. 16A and an example of the second playlist are arranged on the same time axis. FIG. 16D is a diagram in which the first playlist shown in FIG. 16A and an example of the second playlist generated by the second playback device according to the third embodiment are arranged on the same time axis. 16E and 16F are examples of a second playlist generated by the second playback device according to the third embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1.

The integrated list providing device 1 according to the first embodiment will be described below, as an example, as being applied to a reproduction system 2 mounted on a vehicle.

FIG. 1 is a block diagram showing a configuration of a reproduction system 2 to which the integrated list providing device 1 according to the first embodiment is applied.
The reproduction system 2 includes a first recording device 21, a second recording device 22, a first reproduction device 23, a second reproduction device 24, and an integrated list providing device 1.

The first recording device 21 includes a recording unit and a reading unit. Renewable data such as music data or video data is recorded in the recording unit. The reading unit reads the reproducible data recorded in the recording unit in response to the reading request from the reproducing device. The first recording device 21 is a recording device that cannot be simultaneously read from a plurality of playback devices. Here, simultaneous readability means that while the playable data is being read in response to a read request from a certain playback device, the playable data is read in response to a read request from another playback device. It means you can't. The first recording device 21 is an optical disk drive device that reads playable data recorded on an optical disk such as a CD (Compact Disc) medium or a DVD (Digital Versaille Disc) media. The optical disc drive device reads the reproducible data of the optical disc by rotating the optical disc by a spindle motor built in the drive and moving the pickup lens on the recording surface of the optical disc in the radial direction of the optical disc. Therefore, the speed of reading reproducible data is slow, and it is not possible to respond to simultaneous read requests from a plurality of playback devices. The first recording device 21 is not limited to the above-mentioned optical disk drive device as long as it is a recording device that cannot be simultaneously read from a plurality of playback devices, and the first recording device 21 is not limited to the above-mentioned optical disk drive device. It may be a recording device that rejects a read request. In this case, the recording unit of the first recording device 21 may be a portable recording medium such as a USB memory or a recording medium installed inside the recording device such as a flash memory, and may be the Internet or a public line. It may be a recording medium existing on the network such as.
Hereinafter, the reproducible data recorded in the first recording device 21 is particularly referred to as the first reproducible data.

The second recording device 22 includes a recording unit and a reading unit. Renewable data is recorded in the recording unit. The reading unit reads the reproducible data recorded in the recording unit in response to the reading request from the reproducing device. The second recording device 22 is a recording device capable of simultaneous reading from a plurality of playback devices. The second recording device 22 may operate as a partial function of a portable terminal such as a smartphone that supports the media transfer protocol, for example. Further, the second recording device 22 may operate as a partial function of the playback device. In this case, the recording unit of the second recording device 22 may be a recording medium such as a flash memory installed inside the display device, a portable recording medium such as a USB memory connected to the display device, the Internet, or a public line. It may be a storage medium outside the display device such as a recording medium existing on the network.
Hereinafter, the reproducible data recorded in the second recording device 22 is particularly referred to as the second reproducible data.

The first reproduction device 23 is a reproduction device that reproduces reproducible data. The first reproduction device 23 can generate a playlist based on the integrated list acquired from the integrated list providing device 1 described later or the processed integrated list described later. The playlist is information indicating the order in which the playable data is played back. Hereinafter, the playlist generated by using the first playback device 23 is referred to as a first playlist. The first playlist is reproducible data that the user has in the integrated list or the processed integrated list using the first playback device 23, even if it is automatically generated by the first playback device 23 according to a predetermined rule. It may be generated by selecting the title name or the like of.
The first reproduction device 23 generates reproduction information indicating the reproduction status of the reproducible data. For example, the first reproduction device 23 generates reproduction information indicating the reproduction status of the reproducible data to be reproduced according to the generated first playlist. The first reproduction device 23 outputs the generated reproduction information to the integrated list providing device 1 described later.
The reproduction information includes at least information that can identify the reproduction data to be reproduced. When the playable data is played according to a playlist, the play information also includes information that can specify the play order of the playable data to be played.
Hereinafter, the reproduction information generated by the first reproduction device 23 is particularly referred to as the first reproduction information.

The second reproduction device 24 is a reproduction device that reproduces reproducible data. The second reproduction device 24 can generate a playlist based on the integrated list acquired from the integrated list providing device 1 described later or the processed integrated list described later. Hereinafter, the playlist generated by using the second playback device 24 will be referred to as a second playlist. The second playlist is reproducible data that the user has in the integrated list or the processed integrated list using the second playback device 24, even if it is automatically generated by the second playback device 24 according to a predetermined rule. It may be generated by selecting the title name or the like of.
The second reproduction device 24 generates reproduction information indicating the reproduction status of the reproducible data. For example, the second reproduction device 24 generates reproduction information indicating the reproduction status of the reproducible data to be reproduced according to the generated second playlist. The second reproduction device 24 outputs the generated reproduction information to the integrated list providing device 1 described later. Hereinafter, the reproduction information generated by the second reproduction device 24 is particularly referred to as the second reproduction information.

The integrated list providing device 1 includes a metadata acquisition unit 11, a list generation unit 12, a list providing unit 13, a reproduction information acquisition unit 14, and a list processing unit 15.

The metadata acquisition unit 11 acquires metadata indicating the first reproducible data and metadata indicating the second reproducible data. Metadata contains information that identifies reproducible data. The information that identifies the reproducible data is, for example, information indicating the title name of the reproducible data, information indicating the album name, information indicating the artist name, information indicating the time required for reproduction, or a storage location of the reproducible data. Information such as a directory path indicating. Hereinafter, the metadata indicating the first reproducible data is referred to as the first metadata, and the metadata indicating the second reproducible data is particularly referred to as the second metadata.
Even if part or all of the first metadata is recorded in the first recording device 21, music such as CDDB (registered trademark) that can be acquired via a network such as the Internet or a public line. It may be the one recorded in the database.
The second metadata, even if part or all of it is recorded in the second recording device 22, is music such as CDDB (registered trademark) that can be acquired via a network such as the Internet or a public line. It may be the one recorded in the database.
The metadata acquisition unit 11 outputs the acquired metadata to the list generation unit 12.

The list generation unit 12 generates an integrated list in which the first metadata and the second metadata are integrated based on the first metadata and the second metadata acquired by the metadata acquisition unit 11. The integrated list contains some or all of the information that identifies the renewable data contained in the metadata, as well as information that identifies the recording device on which the renewable data is recorded. The list generation unit 12 outputs the generated integrated list to the list providing unit 13 or the list processing unit 15.

The list providing unit 13 transmits and provides an integrated list or a processed integrated list described later to the reproduction device. Specifically, the list providing unit 13 provides an integrated list or a processed integrated list to the first reproduction device 23 or the second reproduction device 24. As described above, the first playback device 23 can generate the first playlist based on the integrated list or the processed integrated list, and the second playback device 24 can generate the integrated list or the processed integrated list. Can generate a second playlist.
The reproduction information acquisition unit 14 acquires the reproduction information generated by the reproduction apparatus. Specifically, the reproduction information acquisition unit 14 acquires the first reproduction information generated by the first reproduction device 23 or the second reproduction information generated by the second reproduction device 24.
The reproduction information acquisition unit 14 outputs the acquired reproduction information to the list processing unit 15.

The list processing unit 15 has processed the integrated list based on at least one of the first reproduction information and the second reproduction information acquired by the reproduction information acquisition unit 14, and has processed the integrated list (hereinafter, “processed integration”). "List".) Is generated. When the list processing unit 15 has information indicating that the first reproducible data is to be reproduced in either the first reproduction information or the second reproduction information acquired by the reproduction information acquisition unit 14, the other reproduction information is present. The integrated list is processed so as to limit the reproduction of the first reproducible data in the reproduction device that generated the above.
In the first embodiment, as an example of processing the integrated list so that the list processing unit 15 restricts the reproduction of the first reproducible data, the integrated list is processed so that the first metadata cannot be selected in the reproduction device. An example is shown.
As a method of processing the integrated list so that the first metadata cannot be selected, for example, there is a method of deleting the first metadata from the integrated list. Further, for example, a method may be used in which a selectability column for the first reproducible data indicated by the first metadata is provided in the integrated list, and non-selectable information is added to the selectability column. When the playback device automatically generates a playlist, for example, a rule may be set so that the playback device does not select the first playable data to which information that cannot be selected is added. When the user generates a playlist using the playback device, for example, the first playable data to which the non-selectable information is added is displayed as unselectable, and the user displays the non-selectable data. The playback device may be configured so that the selection is rejected even if the selection operation of is performed.
The list processing unit 15 outputs the generated integrated list to the list providing unit 13.

The first recording device 21, the second recording device 22, the first reproduction device 23, the second reproduction device 24, and the integrated list providing device 1 constituting the reproduction system 2 directly or indirectly connect the in-vehicle network 25 such as a wireless LAN. They are connected to each other via.

FIG. 2 is a diagram showing an example of the hardware configuration of the integrated list providing device 1 according to the first embodiment.
In the first embodiment, each function of the metadata acquisition unit 11, the list generation unit 12, the list providing unit 13, the reproduction information acquisition unit 14, and the list processing unit 15 is realized by the processing circuit 201. That is, the integrated list providing device 1 creates an integrated list or a processed integrated list based on the metadata acquired by the metadata acquisition unit 11 and the reproduction information acquired by the reproduction information acquisition unit 14. A processing circuit 201 for transmission by the list providing unit 13 is provided.
The processing circuit 201 may be dedicated hardware as shown in FIG. 2A, or may be a CPU (Central Processing Unit) 206 that executes a program stored in the memory 205 as shown in FIG. 2B.

When the processing circuit 201 is dedicated hardware, the processing circuit 201 may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), or an FPGA (Field-Programmable). Gate Array) or a combination of these is applicable.

When the processing circuit 201 is the CPU 206, the functions of the metadata acquisition unit 11, the list generation unit 12, the list providing unit 13, the reproduction information acquisition unit 14, and the list processing unit 15 are software, firmware, or software and firmware. It is realized by the combination of. That is, the metadata acquisition unit 11, the list generation unit 12, the list providing unit 13, the reproduction information acquisition unit 14, and the list processing unit 15 execute the programs stored in the HDD (Hard Disk Drive) 202, the memory 205, and the like. It is realized by a processing circuit such as CPU 206 or a system LSI (Large-Scale Integration). Further, the program stored in the HDD 202, the memory 205, etc. is the procedure in each of the metadata acquisition unit 11, the list generation unit 12, the list providing unit 13, the reproduction information acquisition unit 14, and the list processing unit 15, that is, the metadata. It can be said that the computer is made to execute the acquisition procedure, the list generation procedure, the list provision procedure, the reproduction information acquisition procedure, and the list processing procedure. Here, the memory 205 is, for example, a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable Read Only Memory), an EEPROM (Electrically Memory-Electrically Memory), or the like. This includes sex or volatile semiconductor memory, magnetic disk, flexible disk, optical disk, compact disk, mini disk, DVD (Digital Versaille Disc), or the like.

For each function of the metadata acquisition unit 11, the list generation unit 12, the list provision unit 13, the reproduction information acquisition unit 14, and the list processing unit 15, some of them are realized by dedicated hardware, and some of them are software or. It may be realized by firmware. For example, the metadata acquisition unit 11 and the list generation unit 12 have their functions realized by the processing circuit 201 as dedicated hardware, and the list provision unit 13, the reproduction information acquisition unit 14, and the list processing unit 15 have their functions realized. The function can be realized by the processing circuit reading and executing the program stored in the memory 205.
Further, the integrated list providing device 1 has an input interface device 203 and an output interface device 204 for communicating with the first recording device 21, the second recording device 22, the first playback device 23, and the second playback device 24. Have.
In the above description, the hardware configuration of the integrated list providing device 1 has been described as using the HDD 202 as shown in FIG. 2B, but the SSD (Solid State Drive) is used instead of the HDD 202. It may be.

3A, 3B, and 3C are examples of a case where the reproduction system 2 is mounted on a vehicle.
The integrated list providing device 1 may operate as a partial function of the car navigation system, for example, as shown in FIGS. 3A, 3B, and 3C.
The first reproduction device 23 may operate as a partial function of the car navigation system, for example, as shown in FIGS. 3A and 3B. Further, the first reproduction device 23 may operate as a partial function of the rear entertainment system as shown in FIG. 3C. Further, although not shown in the figure, the first reproduction device 23 may operate as a partial function of the tablet terminal brought into the vehicle or as a partial function of a smartphone or the like.
The second reproduction device 24 may be operated as a part of the function of the rear entertainment system as shown in FIG. 3A, for example. Further, the second reproduction device 24 may operate as a partial function of the tablet terminal brought into the vehicle as shown in FIGS. 3B and 3C, or as a partial function of the smartphone or the like. Further, although not shown in the figure, the second reproduction device 24 may be operated as a partial function of the car navigation system.
The first recording device 21 may operate as a partial function of the car navigation system, for example, as shown in FIG. 3A. Further, the first recording device 21 may operate as a partial function of the tablet terminal brought into the vehicle as shown in FIG. 3B, or as a partial function of a smartphone or the like. Further, the first recording device 21 may operate as a partial function of the rear entertainment system as shown in FIG. 3C.
The second recording device 22 may operate as a partial function of the car navigation system, for example, as shown in FIG. 3B. Further, the second recording device 22 may operate as a partial function of the tablet terminal brought into the vehicle as shown in FIG. 3C, or as a partial function of a smartphone or the like.
The above is only an example when the reproduction system 2 is mounted on a vehicle, and the configuration of the reproduction system 2 is not limited to these examples.

The operation will be described.
FIG. 4 is a flowchart illustrating a process at the start of operation of the integrated list providing device 1 according to the first embodiment. Hereinafter, the processing at the time of starting the operation of the integrated list providing device 1 according to the first embodiment will be described with reference to the flowchart.

For example, when the operation of the integrated list providing device 1 is started by turning on the power of the car navigation system or the like, the metadata acquisition unit 11 determines whether or not there is a recording device in which the renewable data is recorded in the in-vehicle network 25. Is determined (step ST1). In the description of the operation of the integrated list providing device 1 according to the first embodiment, a case where the first recording device 21 and the second recording device 22 exist in the in-vehicle network 25 will be described as an example.
When there is no recording device in which the renewable data is recorded in the in-vehicle network 25 (step ST1: NO), the integrated list providing device 1 ends the processing of the flowchart shown in FIG.
When there is a recording device in which the reproducible data is recorded in the in-vehicle network 25 (step ST1: YES), the metadata acquisition unit 11 is a meta corresponding to the reproducible data recorded in the recording device in the in-vehicle network 25. Get the data. That is, in the reproduction system 2 according to the first embodiment, the metadata acquisition unit 11 acquires the first metadata corresponding to the first reproducible data and the second metadata corresponding to the second reproducible data. (Step ST2).
The list generation unit 12 generates an integrated list based on the first metadata and the second metadata (step ST3). After that, the integrated list providing device 1 ends the processing of the flowchart shown in FIG.

FIG. 5 is an example of an integrated list generated when the integrated list providing device 1 according to the first embodiment executes the process at the start of the operation shown in FIG. The integrated list contains, for example, information indicating the title name, artist name, album name, storage location, recording device, and information indicating whether or not the first reproducible data can be selected, regarding each reproducible data. In the integrated list shown in FIG. 5, six first playable data having title names T13 to T18 are recorded in the first recording device 21, and twelve title names T1 to T12 are recorded. This is an example of the case where the second reproducible data is recorded in the second recording device 22.

FIG. 6 shows that in the integrated list providing device 1 according to the first embodiment, after the processing of the flowchart shown in FIG. 4 is completed, any of the plurality of playback devices existing in the in-vehicle network 25 generates a playlist. It is a flowchart explaining the process until it finishes. In the first embodiment, a case where the first playlist in the first reproduction device 23 is generated before the second playlist in the second reproduction device 24 will be described as an example. The integrated list providing device 1 repeatedly executes the process shown in the flowchart shown in FIG. 6 until the first playback device 23 finishes generating the first playlist.
Hereinafter, the process from the end of the process of the flowchart shown in FIG. 4 to the end of the first playlist 23 in the integrated list providing device 1 according to the first embodiment will be described in FIG. This will be described using the flowchart shown in.

The metadata acquisition unit 11 determines whether or not there is a new recording device in which the renewable data is recorded in the in-vehicle network 25 (step ST11).
When there is no new recording device in which the renewable data is recorded in the in-vehicle network 25 (step ST11: NO), the integrated list providing device 1 shifts to the process of step ST14 described later.
When there is a new recording device in which the reproducible data is recorded in the in-vehicle network 25 (step ST11: YES), the metadata acquisition unit 11 determines the reproducible data recorded in the new recording device in the in-vehicle network 25. Acquire the metadata corresponding to (step ST12).
The list generation unit 12 newly generates an integrated list based on the already generated integrated list and the newly acquired metadata (step ST13).

The list providing unit 13 determines whether or not the integrated list is requested from the playback device existing in the in-vehicle network 25 (step ST14).
When the integrated list is not requested from the reproduction device existing in the in-vehicle network 25 (step ST14: NO), the integrated list providing device 1 ends the processing of the flowchart shown in FIG.
When the integrated list is requested from the reproduction device existing in the in-vehicle network 25 (step ST14: YES), the list providing unit 13 transmits the integrated list to the requested reproduction device (step ST15). As described above, in the first embodiment, the case where the first playlist in the first reproduction device 23 is generated before the second playlist in the second reproduction device 24 is described as an example. Therefore, in the integrated list providing device 1 according to the first embodiment, the integrated list is requested from the first reproduction device 23 in step ST14, and the integrated list is transmitted to the first reproduction device 23 in step ST15.
The first playback device 23 generates a first playlist based on the integrated list acquired from the integrated list providing device 1. The first reproduction device 23 generates the first reproduction information indicating the reproduction state of the reproducible data to be reproduced according to the generated first playlist.

The reproduction information acquisition unit 14 acquires reproduction information from the reproduction device (step ST16). As described above, in the first embodiment, the case where the first playlist in the first reproduction device 23 is generated before the second playlist in the second reproduction device 24 is described as an example. Therefore, the integrated list providing device 1 according to the first embodiment acquires the first reproduction information from the first reproduction device 23 in step ST16.

The list processing unit 15 determines whether or not the reproduction information includes information indicating the first reproducible data (step ST17). As described above, in the first embodiment, the case where the first playlist in the first reproduction device 23 is generated before the second playlist in the second reproduction device 24 is described as an example. Therefore, in step ST17, the integrated list providing device 1 according to the first embodiment determines whether or not the information indicating the first reproducible data exists in the first reproducible information.
When the information indicating the first reproducible data does not exist in the first reproducible information (step ST17: NO), the integrated list providing device 1 ends the processing of the flowchart shown in FIG.
When the first reproduction information includes information indicating the first reproducible data (step ST17: YES), the list processing unit 15 prevents the reproduction device other than the first reproduction device 23 from selecting the first metadata. , Process the integrated list (step ST18). After that, the processing of the flowchart shown in FIG. 6 is terminated.

FIG. 7A is an example of the first reproduction information acquired by the integrated list providing device 1 according to the first embodiment in step ST16 of the flowchart shown in FIG.
The first reproduction information includes information that can specify the reproducible data to be reproduced according to the first playlist and information that can specify the reproduction order of the reproducible data to be reproduced according to the first playlist. In the first reproduction information shown in FIG. 7A, there is information of the title T15 indicating the first reproducible data in the third reproduction order reproduced in the first playlist.
FIG. 7B is an example of a processed integrated list generated by the integrated list providing device 1 according to the first embodiment in the process of step ST18 of the flowchart shown in FIG.
As shown in FIG. 7A, since the information indicating the first reproducible data was present in the first reproducible information, the processed integrated list shown in FIG. 7B cannot select all the first reproducible data. It has become. Further, the processed integrated list shown in FIG. 7B includes information indicating a reproduction device for which the first reproducible data is scheduled to be reproduced, that is, the first reproduction device 23.

FIG. 8 shows reproduction of the integrated list providing device 1 according to the first embodiment other than the reproduction device that generated the playlist in the description of the flowchart shown in FIG. 6 after the processing of the flowchart shown in FIG. 6 is completed. It is a flowchart explaining the process until the apparatus finishes generating a playlist. As described above, in the first embodiment, the case where the first playlist in the first reproduction device 23 is generated before the second playlist in the second reproduction device 24 is described as an example. Therefore, FIG. 8 shows the processing from the completion of the processing of the flowchart shown in FIG. 6 to the completion of the second playlist generation by the second playback device 24 in the integrated list providing device 1 according to the first embodiment. It is a flowchart which showed. The integrated list providing device 1 repeatedly executes the process shown in the flowchart shown in FIG. 8 until the second playback device 24 finishes generating the second playlist.
Hereinafter, the process from the end of the process of the flowchart shown in FIG. 6 to the end of the second playlist 24 generation of the second playlist in the integrated list providing device 1 according to the first embodiment will be described in FIG. This will be described using the flowchart shown in.

The process from step ST21 to step ST24 in FIG. 8 is the same as the process from step ST11 to step ST14 in FIG. 6, and duplicate description will be omitted.
When the integrated list is not requested from the reproduction device existing in the in-vehicle network 25 (step ST24: NO), the integrated list providing device 1 ends the processing of the flowchart shown in FIG.
When the integrated list is requested from the reproduction device existing in the in-vehicle network 25 (step ST24: YES), the list providing unit 13 transmits and provides the integrated list or the processed integrated list to the requested reproduction device. Since the first playlist 23 has already generated the first playlist, the case where the second playlist 24 requests the integrated list will be described. In this case, the list providing unit 13 transmits the processed integrated list generated in step ST18 of FIG. 6 shown in FIG. 7B to the second reproduction device 24 (step ST25).
The second playback device 24 generates a second playlist based on the processed integrated list acquired from the integrated list providing device 1. The second reproduction device 24 generates the second reproduction information indicating the reproduction state of the reproducible data to be reproduced according to the generated second playlist.

The reproduction information acquisition unit 14 acquires reproduction information from the reproduction device (step ST26). Here, the reproduction information acquisition unit 14 acquires the second reproduction information from the second reproduction device 24.
The list processing unit 15 determines whether or not the second reproduction information includes information indicating the first reproducible data (step ST27).
When the information indicating the first reproducible data does not exist in the second reproduction information (step ST27: NO), the integrated list providing device 1 ends the processing of the flowchart shown in FIG.
When the second reproduction information includes information indicating the first reproducible data (step ST27: YES), the list processing unit 15 prevents the reproduction device other than the second reproduction device 24 from selecting the first metadata. , Process the integrated list (step ST28). After that, the processing of the flowchart shown in FIG. 8 is terminated.
Here, as shown in FIG. 7B, the processed integrated list transmitted by the integrated list providing device 1 to the second reproducing device 24 in step ST25 cannot select the first metadata. Therefore, the second reproduction information acquired by the integrated list providing device 1 from the second reproduction device 24 in step ST26 does not include information indicating the first reproducible data. That is, step ST27 becomes “NO”, the integrated list providing device 1 ends the processing of the flowchart shown in FIG. 8, and the processing in step ST28 is not executed.

As described above, the integrated list providing device 1 includes the first metadata indicating the first reproducible data recorded in the first recording device 21 that cannot be simultaneously read from the plurality of playback devices, and the plurality of playback devices. The second metadata indicating the second reproducible data recorded in the second recording device 22 capable of being simultaneously read from the data, the metadata acquisition unit 11 for acquiring the second metadata, and the first and the first and the first acquired by the metadata acquisition unit 11. List generation that is a list in which the second metadata is integrated, and is an integrated list that each playback device in the plurality of playback devices refers to to select the data to be reproduced from the first or second reproducible data. Unit 12, the reproduction information acquisition unit 14 that acquires reproduction information indicating the reproduction status of the first or second reproducible data from each reproduction device, and the reproduction information acquisition unit acquired from one reproduction device in a plurality of reproduction devices. If there is information indicating the first reproducible data in the replay information, the integrated list is processed to limit the replay of the first reproducible data by other replay devices in a plurality of replay devices. A list processing unit 15 for generating a list and a list providing unit 13 for providing a processed integrated list generated by the list processing unit 15 to another reproduction device are provided.

With this configuration, the integrated list providing device 1 for reproducibly sharing the reproducible data recorded in the recording device that cannot be read out from the plurality of playback devices at the same time among the plurality of playback devices is provided. Can be provided.
In the first embodiment, an example is shown in which each playback device generates a playlist and each playback device reproduces reproducible data according to the generated playlist, but the present invention is not limited to this configuration. The integrated list providing device 1 can generate a processed integrated list by acquiring reproduction information indicating the reproduction status of the reproducible data being reproduced by one reproduction device. That is, when one reproduction device is reproducing the first reproducible data, the integrated list providing device 1 can provide information for restricting the other reproduction devices from reproducing the first reproducible data.

Next, a modified example of the first embodiment will be described.
In the modification of the first embodiment, the reproduction progress status information indicating the reproduction progress status of the playlist generated by the reproduction device is added to the reproduction information of the first embodiment described so far. The reproduction progress status information in the modified example of the first embodiment is information that can at least determine whether or not the reproduction of all the first reproducible data reproduced according to the playlist is completed.
9A and 9B are examples of the first reproduction information acquired by the integrated list providing device 1 according to the modified example of the first embodiment. 9A and 9B are the first reproduction information shown in FIG. 7A with the reproduction progress information of the first playlist in the first reproduction device 23 added. Hereinafter, the reproduction progress status information added to the first reproduction progress information is referred to as the first reproduction progress status information. FIG. 9A shows a state in which the third reproducible data in the reproduction order is reproduced up to 98%. FIG. 9B shows a state in which the fourth reproducible data in the reproduction order is reproduced up to 2%.

The operation will be described.
Since the operation of the integrated list providing device 1 according to the modified example of the first embodiment is the same as the operation of the integrated list providing device 1 according to the first embodiment shown in FIGS. 4 and 6, the description thereof will be omitted.

FIG. 10 shows the integrated list providing device 1 according to the modified example of the first embodiment, from the completion of the processing of the flowchart shown in FIG. 6 to the completion of the generation of the second playlist by the second playback device 24. It is a flowchart explaining the process. The difference between the operation of the integrated list providing device 1 according to the modified example of the first embodiment and the operation of the integrated list providing device 1 according to the first embodiment is between step ST24 and step ST25 shown in FIG. , The processing from step ST31 to step ST33 shown in FIG. 10 is added. The integrated list providing device 1 according to the modification of the first embodiment repeatedly executes the process shown in the flowchart shown in FIG. 10 until the second playback device 24 finishes generating the second playlist.
Hereinafter, the processing from the completion of the processing of the flowchart shown in FIG. 6 to the completion of the generation of the second playlist in the integrated list providing device 1 according to the modified example of the first embodiment will be performed. , Will be described with reference to the flowchart shown in FIG.

The process from step ST21 to step ST24 in FIG. 10 is the same as the process from step ST21 to step ST24 in FIG. 8, and duplicate description will be omitted.
Hereinafter, since the first playlist 23 has already generated the first playlist, the case where the second playlist 24 requests the integrated list will be described.

When the integrated list is requested from the reproduction device existing in the in-vehicle network 25 (step ST24: YES), that is, when the integrated list is requested from the second reproduction device 24, the reproduction information acquisition unit 14 is the first reproduction device. The first reproduction information is acquired from 23 (step ST31).
The list processing unit 15 determines whether or not the first reproduction device 23 has already reproduced the first reproducible data in the first playlist based on the first reproduction progress information included in the first reproduction information. (Step ST32).
When the first reproduction information indicates that any of the first reproducible data has not been reproduced as shown in FIG. 9A (step ST32: NO), the integrated list providing device 1 is set in step ST25 described later. Move to processing.
When the first reproduction information indicates that all the first reproducible data have already been reproduced as shown in FIG. 9B (step ST32: YES), the list processing unit 15 displays the processed integrated list. Process to return to the integrated list before processing. That is, processing is performed so as to return from the state of the processed integrated list shown in FIG. 7B to the state of the integrated list shown in FIG. 5 (step ST33). After that, the integrated list providing device 1 according to the modified example of the first embodiment shifts to the process of step ST25 described later.

The list providing unit 13 transmits an integrated list or a processed integrated list to the requested playback device. That is, the list providing unit 13 transmits the integrated list shown in FIG. 5 or the processed integrated list shown in FIG. 7B to the second reproduction device 24 (step ST25).
The second playback device 24 generates a second playlist based on the processed integrated list acquired from the integrated list providing device 1. The second reproduction device 24 generates the second reproduction information indicating the reproduction state of the reproducible data to be reproduced according to the generated second playlist.
The reproduction information acquisition unit 14 acquires reproduction information from the reproduction device (step ST26). Here, the reproduction information acquisition unit 14 acquires the second reproduction information from the second reproduction device 24.
The list processing unit 15 determines whether or not the second reproduction information includes information indicating the first reproducible data (step ST27).

When the processed integrated list as shown in FIG. 7B is transmitted to the second playback device 24, the second playback device 24 cannot select the first metadata when generating the second playlist. .. Therefore, there is no information indicating the first reproducible data in the second reproducible information. That is, step ST27 becomes “NO”, and the integrated list providing device 1 according to the modified example of the first embodiment ends the processing of the flowchart shown in FIG.

When the integrated list as shown in FIG. 5 is transmitted to the second playback device 24, the second playback device 24 can select the first metadata when generating the second playlist. ..
When there is no information indicating the first reproducible data in the second reproduction information (step ST27: NO), the integrated list providing device 1 according to the modified example of the first embodiment ends the processing of the flowchart shown in FIG. do.
FIG. 11A is an example of the second reproduction information acquired by the integrated list providing device 1 according to the modified example of the first embodiment in step ST26 of the flowchart shown in FIG. The second reproduction information includes information indicating the reproduction order of the reproducible data reproduced according to the second playlist. In the second reproduction information shown in FIG. 11A, the information of the title T13 indicating the first reproducible data is present at the fourth reproduction order. If the second reproduction information includes information indicating the first reproducible data, step ST27 is "YES".
When the second reproduction information includes information indicating the first reproducible data (step ST27: YES), the list processing unit 15 prevents the reproduction device other than the second reproduction device 24 from selecting the first metadata. , Process the integrated list (step ST28). After that, the integrated list providing device 1 according to the modified example of the first embodiment ends the processing of the flowchart shown in FIG.

FIG. 11B is an example of a processed integrated list processed by the integrated list providing device 1 according to the modified example of the first embodiment in the process of step ST28 of the flowchart shown in FIG. In the same step ST27, since the information indicating the first reproducible data was present in the second reproducible information, the first reproducible data cannot be selected in the processed integrated list shown in FIG. 11B. Further, the processed integrated list shown in FIG. 11B includes information indicating a reproduction device in which the first reproducible data is scheduled to be reproduced.

In this way, the list processing unit 15 is configured to perform processing to return the processed integrated list to the integrated list before processing when all the first reproducible data has already been reproduced in the reproduction device. Therefore, when another playback device generates a playlist, the first playable data can be selected faster than in the case of the second playback device 24 according to the first embodiment.
In the modified example of the first embodiment, the integrated list providing device 1 has described the embodiment in which the first reproduction information is acquired when the second reproduction device 24 requests the integrated list. is not it. For example, when the integrated list providing device 1 acquires the first reproduction information at an arbitrary timing and all the first reproducible data has already been reproduced in the reproduction device, the processed integrated list is returned to the state before processing. It may be processed as appropriate.
In the modification of the first embodiment, an example is shown in which each playback device generates a playlist and each playback device reproduces reproducible data according to the generated playlist, but the configuration is not limited to this. The integrated list providing device 1 can generate a processed integrated list by acquiring reproduction information indicating the reproduction status of the reproducible data being reproduced by one reproduction device. That is, when one playback device is playing back the first reproducible data, the integrated list providing device 1 has the other playback device first until one playback device finishes playing back the first reproducible data. 1 Information for limiting the reproduction of reproducible data can be provided.

Embodiment 2.
In the first embodiment, when the reproduction information generated by one of the plurality of reproduction devices contains information indicating the first reproducible data, the wrist processing unit 15 reproduces the first metadata. The integrated list was processed so that playback devices other than the device could not be selected, and a processed integrated list was generated.
In the second embodiment, the list processing unit 15 calculates the scheduled playback period of the first playable data in the playlist based on the playback progress status information indicating the playback progress status according to the playlist generated by the playback device. Then, process it so that it is included in the integrated list, and generate a processed integrated list.

Since the configuration of the reproduction system 2 according to the second embodiment is the same as the configuration described with reference to FIG. 1 in the first embodiment, duplicate description will be omitted, and only the components performing different operations will be described.

The reproduction information generated by the reproduction device includes reproduction progress status information indicating the reproduction position in the playlist at the time of generation of the reproduction information. The reproduction progress status information indicating the reproduction position in the second embodiment is information indicating the reproduction period up to the present in the entire reproduction period of the playlist, and information indicating the reproduction period up to the present in the playable data currently being reproduced. It is information indicating the time position currently being played in the playlist, such as.
FIG. 12A is an example of the first reproduction information acquired from the first reproduction device 23 by the integrated list providing apparatus 1 according to the second embodiment. FIG. 12A shows a state in which the first reproducible data in the reproduction order is reproduced up to 20%. Further, FIG. 12A shows that the information of the title T15 indicating the first reproducible data exists at the third position in the reproduction order.

The list processing unit 15 calculates the scheduled playback period of the first playable data in the playlist based on the playback information including the playback progress information and the time required to play each playable data played according to the playlist. do. The scheduled playback period is the period from the scheduled time when the playback device starts playing the reproducible data to the scheduled time when the playback ends, information on the time when the playback starts and ends, the time when the playback starts, and the playback. Information such as the time interval from the start to the end of. Further, the time may be, for example, information indicating a time based on standard time, or information indicating a relative time based on the time when the list processing unit 15 generated the processed integrated list. The time required to reproduce each reproducible data can be obtained, for example, by referring to the information included in the metadata acquired by the metadata acquisition unit 11.
The list processing unit 15 processes the integrated list so that the processed integrated list includes the calculated reproduction period of the first reproducible data.
FIG. 12B is an example of a processed integrated list generated by processing the integrated list based on the reproduction information shown in FIG. 12A by the integrated list providing device 1 according to the second embodiment. FIG. 12B shows that the first reproduction device 23 is the third in the reproduction order in the period from 9 minutes 20 seconds to 14 minutes 50 seconds after the time when the list processing unit 15 generates the processed integrated list. Indicates that the title T15 is scheduled to be played. The title T15 is the first reproducible data.

Since the hardware configuration of the integrated list providing device 1 according to the second embodiment is the same as the hardware configuration described with reference to FIGS. 2A and 2B in the first embodiment, the description thereof will be omitted.

The operation will be described.
The operation at the start of the operation of the integrated list providing device 1 according to the second embodiment is the same as the operation at the start of the operation of the integrated list providing device 1 according to the first embodiment described with reference to FIG. 4. Is omitted.

FIG. 13 illustrates the process from the end of the process of the flowchart shown in FIG. 4 to the end of the first playlist generation by the first playback device 23 in the integrated list providing device 1 according to the second embodiment. It is a flowchart to be done. The integrated list providing device 1 according to the second embodiment repeatedly executes the process shown in the flowchart shown in FIG. 13 until the first playback device 23 finishes generating the first playlist.
Hereinafter, the operation of the integrated list providing device 1 according to the second embodiment from the completion of the processing of the flowchart shown in FIG. 4 to the completion of the generation of the first playlist by the first playback device 23 will be described in FIG. This will be described using the flowchart shown in.

Since the processing from step ST41 to step ST47 in FIG. 13 is the same as the processing from step ST11 to step ST17 in FIG. 6 used to explain the operation of the integrated list providing device 1 according to the first embodiment, The explanation is omitted.

When the first reproduction information includes information indicating the first reproducible data as shown in FIG. 12A (step ST47: YES), the list processing unit 15 is based on the reproduction progress status information included in the reproduction information. , The scheduled reproduction period of the first playable data in the first playlist is calculated, and the integrated list is processed so that the scheduled reproduction period is included in the processed integrated list (step ST48). That is, based on the first reproduction information shown in FIG. 12A, the integrated list is processed so as to be a processed integrated list as shown in FIG. 12B. After that, the integrated list providing device 1 according to the second embodiment ends the processing of the flowchart shown in FIG.

FIG. 14 illustrates the process from the end of the process of the flowchart shown in FIG. 13 to the end of the second playlist generation by the second playback device 24 in the integrated list providing device 1 according to the second embodiment. It is a flowchart to be done. The integrated list providing device 1 according to the second embodiment repeatedly executes the process shown in the flowchart shown in FIG. 14 until the second playback device 24 finishes generating the second playlist.
Hereinafter, the operation of the integrated list providing device 1 according to the second embodiment from the completion of the processing of the flowchart shown in FIG. 13 to the completion of the generation of the second playlist by the second playback device 24 will be described in FIG. This will be described using the flowchart shown in.

Since the processing from step ST51 to step ST54 in FIG. 14 is the same as the processing from step ST21 to step ST24 in FIG. 10 used to explain the modification of the first embodiment, duplicate description will be omitted. ..
Hereinafter, since the first playlist 23 has already generated the first playlist, the case where the second playlist 24 requests the integrated list will be described.

When the integrated list is not requested from the reproduction device existing in the in-vehicle network 25 (step ST54: NO), that is, when the integrated list is not requested from the second reproduction device 24, the integrated list according to the second embodiment is provided. The device 1 ends the processing of the flowchart shown in FIG.
When the integrated list is requested from the reproduction device existing in the in-vehicle network 25 (step ST54: YES), that is, when the integrated list is requested from the second reproduction device 24, the reproduction information acquisition unit 14 is the first reproduction device 23. The first reproduction information is acquired from (step ST55).
The list processing unit 15 has a scheduled reproduction period of the first reproducible data based on the first reproduction information as shown in FIG. 12A and the time required to reproduce each reproducible data reproduced according to the first playlist. Is calculated, and the integrated list is processed so that the scheduled reproduction period is included in the processed integrated list (step ST56).
The list providing unit 13 transmits and provides the processed integrated list to the requested reproduction device. That is, the list providing unit 13 transmits the processed integrated list as shown in FIG. 12B to the second reproduction device 24 (step ST57).
The second playback device 24 generates a second playlist based on the processed integrated list acquired from the integrated list providing device 1. The second reproduction device 24 generates the second reproduction information indicating the reproduction state of the reproducible data to be reproduced according to the generated second playlist.

The reproduction information acquisition unit 14 acquires the second reproduction information from the second reproduction device 24 (step ST58).
The list processing unit 15 determines whether or not the second reproduction information includes information indicating the first reproducible data (step ST59).
When the information indicating the first reproducible data does not exist in the second reproduction information (step ST59: NO), the integrated list providing device 1 ends the processing of the flowchart shown in FIG.

As described above, the second playback device 24 according to the second embodiment generates a second playlist based on the processed integrated list generated in step ST48 of FIG. The processed integrated list contains information indicating the scheduled reproduction period of the first playable data in the first playlist. When the second playback device 24 generates the second playlist accompanied by the playback of the first playable data, the second playback device 24 has the scheduled playback period of the first playable data in the first playlist and the first playback in the second playlist. A second playlist is generated so that the reproduction periods of possible data do not overlap.
That is, the information indicating the scheduled reproduction period of the first reproducible data included in the processed integrated list is information for limiting the period for regenerating the first reproducible data in the second reproduction device 24.
The second reproduction device 24 generates the second reproduction information after the generation of the second playlist.
FIG. 15A is an example of the second reproduction information acquired from the second reproduction device 24 by the integrated list providing apparatus 1 according to the second embodiment. The second reproduction information shown in FIG. 15A includes information of the title T17 indicating the first playable data to be reproduced first in the reproduction order according to the second playlist, and the first reproduction to be reproduced fourth. There is information on the title T13 indicating possible data. Further, the second reproduction information shown in FIG. 15A includes the second reproduction progress information indicating the reproduction status of the second playlist.

When the second reproduction information includes information indicating the first reproducible data (step ST59: YES) as in the second reproduction information shown in FIG. 15A, the list processing unit 15 processes the processing generated in step ST48. The completed integrated list is processed so as to be a processed integrated list as shown in FIG. 15B described later (step ST60). After that, the integrated list providing device 1 ends the processing of the flowchart shown in FIG.
FIG. 15B is an example of a processed integrated list generated by the integrated list providing device 1 according to the second embodiment in step ST60 shown in FIG. 14 based on the reproduction information shown in FIG. 15A. In FIG. 15B, the first reproducible device 23 displays the first reproducible data of the title T15 from 7 minutes 10 seconds to 12 minutes 40 seconds after the time when the list processing unit 15 generates the processed integrated list. Indicates that it will be regenerated during the period. Further, in FIG. 15B, 14 minutes 30 seconds to 19 minutes after 14 minutes 30 seconds based on the time when the second reproduction device 24 generates the processed integrated list of the first reproducible data of title T13 and title T17, respectively. It indicates that it is scheduled to be regenerated in the period up to 00 seconds and the period from the present time to 4 minutes and 10 seconds later.

By configuring the second reproduction device 24 according to the second embodiment in this way, the reproducible data recorded in the recording device that cannot be read out from the plurality of reproduction devices at the same time is reproduced between the plurality of reproduction devices. It is possible to provide a reproduction system 2 for sharing as possible.
In the second embodiment, the integrated list providing device 1 has described a mode in which the first reproduction information is acquired when the second reproduction device 24 requests the integrated list, but the present invention is not limited to this. For example, the integrated list providing device 1 may acquire the first reproduction information at an arbitrary timing and appropriately process it.
In the second embodiment, an example is shown in which each playback device generates a playlist and each playback device reproduces reproducible data according to the generated playlist, but the present invention is not limited to this configuration. The integrated list providing device 1 can generate a processed integrated list by acquiring reproduction information indicating the reproduction status of the reproducible data being reproduced by one reproduction device. That is, when one playback device is playing back the first reproducible data, the integrated list providing device 1 has the other playback device first until one playback device finishes playing back the first reproducible data. 1 Information for limiting the reproduction of reproducible data can be provided.

Embodiment 3.
Since the configuration of the reproduction system 2 according to the third embodiment is the same as the configuration described with reference to FIG. 1 in the first embodiment, duplicate description will be omitted, and only the components performing different operations will be described.
Since the hardware configuration of the integrated list providing device 1 according to the third embodiment is the same as the hardware configuration described with reference to FIGS. 2A and 2B in the first embodiment, the description thereof will be omitted.
Since the operation of the integrated list providing device 1 according to the third embodiment is the same as the operation of the integrated list providing device 1 according to the third embodiment described with reference to FIGS. 13 and 14 in the second embodiment. The explanation is omitted.

The second embodiment and the third embodiment differ in the following points.
In the second embodiment, when the reproduction information of one of the plurality of reproduction devices contains information indicating the first reproducible data, the other reproduction device is accompanied by the reproduction of the first reproducible data. When generating a playlist, make sure that the scheduled playback period of the first playable data in the playlist generated by the one playback device does not overlap with the playback period of the first playable data in the other playlist. Was generating a playlist of.
On the other hand, in the third embodiment, when the reproduction information of one of the plurality of reproduction devices contains information indicating the first reproducible data, the other reproduction device reproduces the first reproducible data. When generating another playlist with the above, the scheduled playback period of the first playable data in the playlist generated by the one playback device and the playback period of the first playable data in the other playlist match. Generate other playlists as you do.

In the reproduction system 2 according to the third embodiment, when the reproduction information of one of the plurality of reproduction devices contains information indicating the first reproducible data, the one reproduction device operates as a master device. , Other playback devices operate as slave devices. For example, when the information indicating the first reproducible data is present in the first reproduction information of the first reproduction device 23, the first reproduction device 23 operates as a master device and the second reproduction device 24 operates as a slave device. .. The master device is a playback device that generates a playlist that reproduces the first playable data before other playback devices. The slave device is a playback device that generates a playlist that reproduces the first playable data after the playback device that has become the master device generates the playlist. The first reproducible data is read out at the request of the regenerating device that has become the master device. The reproduction device that has become a slave device acquires the first reproducible data read from the first recording device 21 at the request of the reproduction device that has become the master device via the in-vehicle network 25. The playback device that has become a slave device acquires the first reproducible data acquired by the playback device that has become the master device by retransmitting the first reproducible data that the playback device that has become the master device to the playback device that has become the slave device. May be.
With this configuration, for example, the first playback device 23 that has become a master device and the second playback device 24 that has become a slave device have the same first reproducible data recorded in the first recording device 21. Can be played at the same time.

FIG. 16A is an example of the first playlist being reproduced by the first reproduction device 23. The first playlist shown in FIG. 16A includes a title T3 recorded in the second recording device 22, a title T4 recorded in the second recording device 22, a title T15 recorded in the first recording device 21, and a second recording. It is shown that the reproducible data is reproduced by the first playlist 23 in the order of the titles T7 recorded in the apparatus 22. Further, FIG. 16A shows that the title T3 recorded in the second recording device 22 is being reproduced.
FIG. 16B is an example of a second playlist generated by the second playback device 24. The second playlist shown in FIG. 16B includes a title T5 recorded in the second recording device 22, a title T15 recorded in the first recording device 21, a title T6 recorded in the second recording device 22, and a second recording. It is shown that the reproducible data is reproduced by the second playlist 24 in the order of the titles T9 recorded in the apparatus 22.

16C is a diagram in which the first playlist shown in FIG. 16A and the second playlist shown in FIG. 16B are arranged on the same time axis. The reproduction period of the first reproducible data corresponding to the title T15 recorded in the first recording device 21 in the first reproduction device 23 and the second reproduction device 24 overlaps in a part of the period. In such a case, the second reproduction device 24, which is a slave device, cannot reproduce the reproducible data by directly reading the first reproducible data from the first recording device 21.

The second reproduction device 24 according to the third embodiment has a scheduled reproduction period of the first playable data in the first playlist and reproduction of the first playable data in the second playlist based on the processed integrated list. Generate a second playlist so that it matches the period.
FIG. 16D is a diagram in which the first playlist shown in FIG. 16A and an example of the second playlist generated by the second playback device 24 according to the third embodiment are arranged on the same time axis. In FIG. 16D, the scheduled reproduction period of the first reproducible data corresponding to the title T15 recorded in the first recording device 21 in the first reproduction device 23 and the reproduction period of the first reproducible data in the second reproduction device 24. Is in agreement.

When the first reproduction device 23 and the second reproduction device 24 according to the third embodiment are configured in this way, a plurality of reproducible data recorded in a recording device that cannot be read out from a plurality of reproduction devices at the same time can be obtained. It is possible to provide a reproduction system 2 for reproducibly sharing between reproduction devices.

Based on the integrated list, the second reproduction device 24 according to the third embodiment described so far has the scheduled reproduction period of the first reproducible data in the first playlist and the first reproducible data in the second playlist. There is one that generates a second playlist so that the playback periods of the above match.
When the second playback device 24 according to the third embodiment reproduces the second playlist as shown in FIG. 16D, the second playback device 24 terminates the reproduction of the title T6 being reproduced in the middle, and the title T15. Start playing. In such a case, the reproduction becomes discontinuous when the reproduction of the reproducible data is switched, and abnormal noise is generated, which causes discomfort to the user.
Therefore, when the second reproduction device 24 according to the third embodiment reproduces the first reproducible data, the reproducible data being reproduced at the time when the reproduction of the first reproducible data is started is faded out. The reproduction of the reproducible data may be terminated.
If the second reproduction device 24 according to the third embodiment is configured in this way, it is possible to alleviate the discomfort given to the user when the reproduction of the reproducible data is switched.

Further, when the second reproduction device 24 reproduces the second playlist as shown in FIG. 16D, the second reproduction device 24 reproduces the title T6 whose reproduction has been interrupted after the reproduction of the title T15 is completed. Resume from the middle. In such a case, when the reproduction of the reproducible data is switched, the reproduction becomes discontinuous, and abnormal noise is generated, which causes discomfort to the user.
Therefore, the second reproduction device 24 according to the third embodiment fades in the reproducible data that was being reproduced at the time when the reproduction of the first reproducible data is started after the first reproducible data is reproduced. Then, the reproduction may be restarted from the middle of the reproducible data.
If the second reproduction device 24 according to the third embodiment is configured in this way, it is possible to alleviate the discomfort given to the user when the reproduction of the reproducible data is switched.

16E and 16F are examples of the second playlist generated by the second playback device 24 according to the third embodiment. In both FIGS. 16E and 16F, the scheduled reproduction period in the first reproduction device 23 of the first reproducible data corresponding to the title T15 recorded in the first recording device 21, and the second reproduction of the first reproducible data. The reproduction period in the device 24 is the same.
In FIG. 16E, the second reproduction device 24 reproduces the reproducible data that was being reproduced at the time of starting the reproduction of the first reproducible data after the first reproducible data is reproduced, so as to reproduce from the beginning thereof. A second playlist is being generated.
If the second reproduction device 24 according to the third embodiment is configured in this way, the number of times the reproduction becomes discontinuous when the reproduction of the reproducible data is switched can be reduced, which causes discomfort to the user. It becomes possible to reduce the number of times.

In FIG. 16F, after the first reproducible data is reproduced, the second reproduction device 24 starts playing reproducible data different from the reproducible data that was reproduced at the time when the reproduction of the first reproducible data is started. The second playlist is generated so that it can be played from.
If the second reproduction device 24 according to the third embodiment is configured in this way, the number of times the reproduction becomes discontinuous when the reproduction of the reproducible data is switched can be reduced, which causes discomfort to the user. It becomes possible to reduce the number of times.

In the second playlist generated so that the scheduled reproduction period in the first playlist of the first reproducible data and the reproduction period of the first reproducible data match, the second reproduction device 24 according to the third embodiment , The case where the reproduction is stopped during the reproduction of the first reproducible data will be described.
When the second reproduction device 24, which is a slave device, stops the reproduction during the reproduction of the first reproducible data, the first reproduction device 23, which is the master device, continues the reproduction of the first reproducible data. After that, when the second playback device 24, which is a slave device, resumes playback, the first playback device 23, which is a master device, is playing back the first playable data, and the second playlist is the first playable data. The second playback device 24, which is a slave device, starts playback from the playback portion of the first playable data being played by the first playback device 23, which is a master device. It may be configured in.
At this time, the second reproduction device 24 according to the third embodiment may fade in the first reproducible data to reproduce the first reproducible data when the reproduction is restarted.

Next, in the second playlist generated so that the scheduled reproduction period in the first playlist of the first reproducible data and the reproduction period of the first reproducible data match, the first reproduction according to the third embodiment. The case where the apparatus 23 stops the reproduction during the reproduction of the first reproducible data will be described.
When the first reproduction device 23, which is a master device, stops reproduction during the reproduction of the first reproducible data, the second reproduction device 24, which has been operating as a slave device, operates as a master device. Further, the first reproduction device 23, which has been operating as a master device until now, operates as a slave device when resuming the reproduction of the first reproducible data. That is, when the first reproduction device 23 stops the reproduction during the reproduction of the first reproducible data, the second reproduction device 24 requests the first recording device 21 to read the first reproducible data and reproduces the data. continue. After that, when the first playback device 23, which has become a new slave device, resumes playback, the second playback device 24, which has become a new master device, is playing back the first playable data, and is added to the first playlist. When the information for reproducing the first reproducible data is included, the first reproduction device 23 that has become a new slave device is being reproduced by the second reproduction device 24 that has become a new master device. 1 The reproduction may be started from the reproduction portion of the reproducible data.
At this time, the first reproduction device 23 according to the third embodiment may fade in the first reproducible data to reproduce the first reproducible data when the reproduction is restarted.

In the third embodiment, an example is shown in which each playback device generates a playlist and each playback device reproduces reproducible data according to the generated playlist, but the present invention is not limited to this configuration. The integrated list providing device 1 can generate a processed integrated list by acquiring reproduction information indicating the reproduction status of the reproducible data being reproduced by one reproduction device. That is, when one reproduction device is reproducing the first reproducible data, the other reproduction device operates as a slave device, and one reproduction device can reproduce the first reproducible data being reproduced.

In each of the embodiments so far, the integrated list providing device 1 may include an acquisition selection unit that selects whether or not to acquire the first metadata by the metadata acquisition unit 11 by input of a user.
When the integrated list providing device 1 is selected not to acquire the first metadata, the first recording device 21 is directly connected without going through the reproduction device having the first recording device 21 as a partial function and the in-vehicle network 25. The only reproduction device that can read out the first reproducible data, such as the reproduction device, can exclusively reproduce the first reproducible data.
By configuring the integrated list providing device 1 in this way, the playlist generated by the only playback device capable of reading the first playable data can always be played back. Further, since the integrated list is generated only by the second metadata, the playlist generated based on the integrated list can always be reproduced in other playback devices. Therefore, the user is not confused.

Further, in each embodiment so far, a case where a recording device that cannot be simultaneously read from a plurality of playback devices, that is, a case where the first recording device 21 is one has been described, but the present invention is not limited to this, and the inside of the vehicle is not limited to this. A plurality of first recording devices 21 may exist in the network 25.
Further, in each embodiment so far, a recording device capable of simultaneous reading from a plurality of playback devices, that is, a case where the second recording device 22 is one has been described, but the present invention is not limited to this, and the in-vehicle network is not limited to this. There may be a plurality of second recording devices 22 in 25.

Further, in each embodiment so far, the case where the reproduction device is the first reproduction device 23 and the second reproduction device 24 has been described, but the present invention is not limited to this, and three or more reproductions are performed in the in-vehicle network 25. The device may be present.

Further, in each of the embodiments so far, the case where the first playback device 23 generates the playlist before the second playback device 24 has been described, but the order in which the playlists are generated is limited to the above-mentioned order. Instead, the second playback device 24 may generate a playlist before the first playback device 23.

In the present invention, within the scope of the invention, any combination of the embodiments can be freely combined, any component of the embodiment can be modified, or any component can be omitted in each embodiment.

1 Integrated list providing device, 2 Playback system, 11 Metadata acquisition unit, 12 List generation unit, 13 List provision unit, 14 Playback information acquisition unit, 15 List processing unit, 21 1st recording device, 22 2nd recording device, 23 1st playback device, 24th playback device, 25 in-vehicle network, 201 processing circuit, 202 HDD, 203 input interface device, 204 output interface device, 205 memory, 206 CPU.

Claims (19)

The first metadata indicating the first reproducible data recorded in the first recording device that cannot be simultaneously read from a plurality of playback devices and the second recording device that can be simultaneously read from the plurality of playback devices. A second metadata indicating the recorded second reproducible data, a metadata acquisition unit for acquiring, and a metadata acquisition unit.
A list in which the first and second metadata acquired by the metadata acquisition unit are integrated, and the data to be reproduced by each reproduction device in the plurality of reproduction devices among the first or second reproducible data. A list generator that generates an integrated list, which is referenced to select, and
A reproduction information acquisition unit that acquires reproduction information indicating the reproduction status of the first or second reproducible data from each reproduction device, and a reproduction information acquisition unit.
When the reproduction information indicating the first reproducible data is present in the reproduction information acquired by the reproduction information acquisition unit from one reproduction device in the plurality of reproduction devices, the integrated list is processed and the plurality of reproductions are performed. A list processing unit that generates a processed integrated list for limiting the reproduction of the first reproducible data by another reproduction device in the apparatus, and a list processing unit.
A list providing unit that provides the processed integrated list generated by the list processing unit to the other reproduction device, and a list providing unit.
An integrated list providing device characterized by being equipped with. The list processing unit processes the integrated list so that the other reproduction device cannot select the first metadata corresponding to the first reproducible data, and generates the processed integrated list. The integrated list providing device according to claim 1. The reproduction information acquired from the one reproduction device includes the reproduction progress information indicating the reproduction progress according to the playlist generated by the reproduction device.
The list processing unit determines whether or not all the first reproducible data in the playlist has already been reproduced based on the reproduction progress status information, and all the first reproductions in the playlist. The integrated list providing device according to claim 2, wherein when the possible data has already been reproduced, the processed integrated list is processed so as to return to the integrated list before processing. The reproduction information acquired from the one reproduction device includes the reproduction progress information indicating the reproduction progress according to the playlist generated by the reproduction device.
The list processing unit calculates the scheduled reproduction period of the first reproducible data in the playlist based on the reproduction progress status information, and sets the scheduled reproduction period of the first reproducible data in the playlist. The integrated list providing device according to claim 1, wherein the processed integrated list is generated by processing so as to be included in the integrated list. The integrated list providing device according to claim 4 and
The first recording device and
With the second recording device
With the plurality of playback devices,
A playback system characterized by being equipped with. Among the plurality of reproduction devices, the other reproduction devices include the reproduction scheduled period of the first reproducible data in the playlist generated by the one reproduction device based on the processed integrated list. The reproduction system according to claim 5, wherein another playlist is generated so as not to overlap with the reproduction period of the first reproducible data in the other reproduction device. The other reproduction device generates other reproduction information indicating the first reproducible data to be reproduced according to the other playlist.
The other reproduction information includes other reproduction progress information indicating the reproduction progress according to the other playlist in the other reproduction device.
The list processing unit of the integrated list providing device calculates the scheduled reproduction period of the first reproducible data in the other playlist based on the other reproduction progress status information, and the said in the other playlist. The reproduction system according to claim 6, wherein the reproduction period of the first reproducible data is processed so as to be included in the integrated list. Among the plurality of reproduction devices, the other reproduction devices include the reproduction scheduled period of the first reproducible data in the playlist generated by the one reproduction device based on the processed integrated list, and the reproduction period. Another playlist is generated so as to match the reproduction period of the first reproducible data in another reproduction device.
The other reproduction device is characterized in that when the first reproducible data is reproduced according to the generated other playlist, the first reproducible data read by the one reproduction device is acquired and reproduced. The reproduction system according to claim 5. The other reproducible data is being reproduced at the time when the other reproducible data is started to be reproduced before the first reproducible data is reproduced according to the generated other playlist. The reproduction system according to claim 8, wherein the reproduction of the other reproducible data is terminated by fading out the data. The other reproducible data that was regenerated at the time when the other reproducible data was regenerated after the first reproducible data was reproduced according to the generated other playlist. The reproduction system according to claim 9, wherein the reproduction of the other reproducible data is restarted by fading in from the middle of the process. The other reproducible data that was regenerated at the time when the other reproducible data was regenerated after the first reproducible data was reproduced according to the generated other playlist. 9. The reproduction system according to claim 9, wherein the other playlist is generated so as to reproduce the other playable data from the beginning of the above. The other reproducible data that was regenerated at the time when the other reproducible data was regenerated after the first reproducible data was reproduced according to the generated other playlist. 9. The reproduction system according to claim 9, wherein the other playlist is generated so as to reproduce the reproducible data different from the above. When the other playback device stops the reproduction of the first reproducible data being reproduced according to the other playlist, the one reproduction device continues the reproduction of the first reproducible data.
When the other playback device resumes playback, the one playback device is playing back the first reproducible data, and the other playlist contains information for replaying the first reproducible data. If so, the reproduction system according to claim 8, wherein the other reproduction device starts reproduction from the reproduction portion of the first reproducible data being reproduced by the one reproduction device. The other reproduction device is characterized in that when reproduction is started from the reproduction portion of the first reproducible data being reproduced by the one reproduction device, the first reproducible data is faded in and reproduced. 13. The reproduction system according to claim 13. When the one reproduction device stops the reproduction of the first reproducible data being reproduced according to the playlist generated by the one reproduction device, the other reproduction device of the first reproducible data. Continue playing,
When the one reproduction device resumes reproduction, the other reproduction device is reproducing the first reproducible data, and the first reproducible data is added to the playlist generated by the one reproduction device. 8. The aspect 8 is characterized in that, when the information to be reproduced is included, the one reproduction device starts reproduction from the reproduction portion of the first reproducible data reproduced by the other reproduction device. The playback system described. The one reproduction device is characterized in that when reproduction is started from the reproduction portion of the first reproducible data being reproduced by the other reproduction device, the first reproducible data is faded in and reproduced. The reproduction system according to claim 15. The integrated list providing apparatus according to any one of claims 1 to 4, wherein the metadata acquisition unit includes an acquisition selection unit for selecting whether or not to acquire the first metadata. .. 5. The integrated list providing device is characterized in that the metadata acquisition unit includes an acquisition selection unit that selects whether or not to acquire the first metadata corresponding to the first reproducible data. The reproduction system according to any one of claims 16. On the computer
The first metadata indicating the first reproducible data recorded in the first recording device that cannot be simultaneously read from a plurality of playback devices and the second recording device that can be simultaneously read from the plurality of playback devices. A second metadata indicating the recorded second reproducible data, a metadata acquisition function for acquiring, and a metadata acquisition function.
A list in which the first and second metadata acquired by the metadata acquisition function are integrated, and the data to be reproduced by each reproduction device in the plurality of reproduction devices among the first or second reproducible data. A list generation function that generates an integrated list, which is referenced to select, and
A reproduction information acquisition function for acquiring reproduction information indicating the reproduction status of the first or second reproducible data from each reproduction device, and a reproduction information acquisition function.
When the reproduction information indicating the first reproducible data is present in the reproduction information acquired by the reproduction information acquisition function from one reproduction device in the plurality of reproduction devices, the integrated list is processed and the plurality of reproductions are performed. A list processing function that generates a processed integrated list for limiting the reproduction of the first reproducible data by another reproduction device in the apparatus, and a list processing function.
A list providing function that provides the processed integrated list generated by the list processing function to the other reproduction device, and a list providing function.
An integrated list providing program to realize.

Images