WO2012172799A1 - Dispositif de traitement de contenu, système de traitement de contenu, procédé de traitement de contenu, et programme de traitement de contenu - Google Patents

Dispositif de traitement de contenu, système de traitement de contenu, procédé de traitement de contenu, et programme de traitement de contenu Download PDF

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Publication number
WO2012172799A1
WO2012172799A1 PCT/JP2012/003872 JP2012003872W WO2012172799A1 WO 2012172799 A1 WO2012172799 A1 WO 2012172799A1 JP 2012003872 W JP2012003872 W JP 2012003872W WO 2012172799 A1 WO2012172799 A1 WO 2012172799A1
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WO
WIPO (PCT)
Prior art keywords
content
unit
conversion
content processing
format
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PCT/JP2012/003872
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English (en)
Japanese (ja)
Inventor
功二 森
正人 中須
高橋　克直
信成 村井
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パナソニック株式会社
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Publication of WO2012172799A1 publication Critical patent/WO2012172799A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H04N21/6582—Data stored in the client, e.g. viewing habits, hardware capabilities, credit card number
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25808—Management of client data
    • H04N21/25825—Management of client data involving client display capabilities, e.g. screen resolution of a mobile phone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand

Definitions

  • the present invention relates to a content processing apparatus, a content processing system, a content processing method, and a content processing program.
  • the present invention relates to a technique for a playback apparatus to download content from a server.
  • DLNA Digital Living Network Alliance
  • DMP Digital Media Player
  • DMS Digital Media Server
  • Patent Document 1 proposes a countermeasure against interruption of content reproduction in a network player. Specifically, a technique for storing resume information when a playback interruption is detected in a player that reproduces content in the server, and requesting the server to transmit data from the interruption position of the resume information when the reproduction resume is detected. Is disclosed.
  • Patent Document 1 The technology of Patent Document 1 is premised on streaming playback. However, assuming a situation in which, for example, DMP starts playback after content download is complete, if a network disconnection occurs before the content download is complete, complex processing is required to combine the content at the time of network disconnection Become. For this reason, it is difficult to apply the technique of Patent Document 1 to reproduction after downloading is completed.
  • the present invention has been made in view of the above circumstances, and is a content processing apparatus and content processing capable of playing back content after the download is completed even when a network disconnection occurs until the content download is completed It is an object to provide a system, a content processing method, and a content processing program.
  • a content processing apparatus is a content processing apparatus that plays back content after downloading is complete, and includes a content playback unit that plays back content, and reproducible information that indicates the content format that can be played back by the content playback unit.
  • a transmission unit that transmits the content converted to the content processing server, and a reception unit that receives the content converted by the content processing server based on the reproducible information transmitted by the transmission unit.
  • the content processing system of the present invention is a content processing system that includes a content processing device that plays back content after it has been downloaded, and a content processing server that converts the content format.
  • the content processing device plays back content.
  • the content processing server includes: a content storage unit that stores content in a predetermined content format; a server reception unit that receives reproducible information transmitted by the content processing device; and the server reception unit Playable
  • a content format conversion processing unit that converts the content format of the content stored by the content storage unit based on the information, a server transmission unit that transmits the converted content after the conversion by the content format conversion processing unit is completed, Is provided.
  • the content processing apparatus notifies the reproducible information, and the content processing server converts the content format based on the reproducible information. Therefore, the content processing server can perform the conversion offline. Therefore, even if a network disconnection occurs until the download of the content is completed, the content can be reproduced after the download is completed without interruption of conversion.
  • the content processing method of the present invention is a content processing method in a content processing apparatus that plays back content after downloading is completed, and includes a step of playing back content by a content playback unit and a content format that can be played back by the content playback unit. Transmitting the reproducible information shown to a content processing server that converts the content format, and receiving the content converted by the content processing server based on the transmitted reproducible information.
  • the content processing apparatus notifies the reproducible information, and the content processing server converts the content format based on the reproducible information. Therefore, the content processing server can perform the conversion offline. Therefore, even if a network disconnection occurs until the download of the content is completed, the content can be reproduced after the download is completed without interruption of conversion.
  • the content processing program of the present invention is a program for causing a computer to execute each step of the content processing method.
  • the content processing apparatus since the content processing apparatus notifies the reproducible information and the content processing server converts the content format based on the reproducible information, the content processing server can perform the conversion offline. Therefore, even if a network disconnection occurs until the download of the content is completed, the content can be reproduced after the download is completed without interruption of conversion.
  • the content can be played after the download is completed.
  • FIG. 1 is a block diagram illustrating a functional configuration example of a content processing system according to a first embodiment of the present invention.
  • the sequence diagram which shows the operation example until the start of the conversion of the content in the content processing system of the 1st Embodiment of this invention
  • FIG. 3 is a sequence diagram showing an operation example after content conversion is completed in the content processing system according to the first embodiment of the present invention.
  • FIG. 3 is a schematic diagram for explaining an operation example when conversion of the content processing system in the first embodiment of the present invention is completed.
  • FIG. 1 shows a main functional configuration example related to a content processing apparatus and a content processing system including the content processing apparatus according to the first embodiment of the present invention.
  • the content processing system includes a mobile terminal 10, a server 20, and a communication network NW that connects them.
  • the mobile terminal 10 is an example of a content processing apparatus
  • the server 20 is an example of a content processing server.
  • the mobile terminal 10 has a communication function that conforms to the technical specifications of the DLNA guidelines, and has a function as a DMP, that is, a function of reproducing various contents such as moving images.
  • a mobile phone terminal, a portable information terminal, a portable media player, a notebook computer, and the like are assumed.
  • the server 20 has a communication function that conforms to the technical specifications of the DLNA guidelines, and has a function as a DMS, that is, a function as a server that provides various contents such as moving images.
  • a function as a DMS that is, a function as a server that provides various contents such as moving images.
  • AV devices such as Blu-ray recorders, digital televisions with a built-in content storage function, and dedicated servers, and information home appliances are assumed.
  • the communication network NW is a network that can be used by various digital devices to perform data communication with each other, such as a local area network (LAN) built in a home.
  • the communication network NW may be configured by a general wired network, a wireless LAN, a power line communication (PLC) network, or the like, or may be configured by combining these.
  • PLC power line communication
  • the mobile terminal 10 does not need to be always connected to the communication network NW and can be disconnected as necessary. For example, it is necessary to connect to perform communication when the mobile terminal 10 downloads necessary content from the server 20, but the mobile terminal 10 can be disconnected from the communication network NW and used independently during standby or when playing back content. .
  • DLNA processing unit 11 is provided with a DLNA processing unit 11, a communication control unit 12, a conversion completion time analysis unit 13, an alarm control unit 14, a display control unit 15, a display unit 16, and a key operation unit 17.
  • the mobile terminal 10 incorporates various hardware components including a control microcomputer, like a general mobile phone terminal and mobile information terminal. Yes.
  • a control microcomputer like a general mobile phone terminal and mobile information terminal.
  • Each component shown in FIG. 1 is realized by executing a program prepared in advance by a microcomputer, or by a dedicated integrated circuit that executes a predetermined operation at high speed.
  • the DLNA processing unit 11 provides functions on the DMP side that are necessary for the mobile terminal 10 functioning as DMP and the server 20 functioning as DMS to operate in accordance with the DLNA guidelines. That is, the mobile terminal 10 provided with the DLNA processing unit 11 can exchange content with the server 20 connected to the communication network NW without any special setting. For example, when a LAN is connected to the mobile terminal 10, an IP address is automatically assigned by the DLNA processing unit 11 and communication is possible. Then, the DLNA processing unit 11 searches for the server 20 connected to the LAN, and acquires and displays a list of contents (content list) stored in the server 20.
  • the communication control unit 12 is an interface for connecting the mobile terminal 10 to the communication network NW, and realizes data communication including content transfer between the mobile terminal 10 and the server 20 under the control of the DLNA processing unit 11.
  • the conversion completion time analysis unit 13 analyzes the time when the conversion of the content format (content format) to be downloaded is completed. For example, when the content format such as the content bit rate is converted on the server 20 side, the time required for the conversion may be long. Therefore, the conversion completion time analysis unit 13 analyzes the time at which this conversion is completed based on the information transmitted from the server 20. Further, information on conversion completion time and conversion completion time from the server 20 may be used.
  • the alarm control unit 14 controls the generation of an alarm based on the analysis result of the conversion completion time analysis unit 13. For example, the alarm control unit 14 generates an alarm when the time when conversion is completed, that is, when the converted content can be downloaded, and gives this information to the display control unit 15.
  • the key operation unit 17 accepts a user input operation to an operation unit constituted by various keys provided in the mobile terminal 10. For example, when the user selects content to be played from a menu, the key operation unit 17 accepts a user input operation.
  • the display unit 16 is composed of a display device such as a liquid crystal display panel, for example, and has a screen capable of displaying various information such as moving images, still images, and character strings.
  • the display control unit 15 performs control related to information displayed on the screen of the display unit 16. For example, content data downloaded from the server 20 is input via the DLNA processing unit 11, and content playback control (playback) is performed. Further, an alarm is displayed according to the output of the alarm control unit 14, or a menu or the like is displayed according to a user input operation to the key operation unit 17.
  • the mobile terminal 10 has an internal memory (not shown), and stores various reproducible content data such as moving images, still images, and music.
  • various reproducible content data such as moving images, still images, and music.
  • a plurality of contents having different formats can be stored for the same content. That is, it is possible to store the original content before converting the content format such as bit rate, format, and resolution, and the content after converting the format.
  • this internal memory holds information related to the content held by the mobile terminal 10 as a content list.
  • the mobile terminal 10 may have similar information in an external memory (not shown) instead of having the internal memory.
  • the external memory is a device different from the mobile terminal 10 such as a memory card, and is used by being connected to the mobile terminal 10.
  • the display control unit 15 of the mobile terminal 10 can control playback of content stored in the external memory.
  • the conversion control unit 23 includes a conversion completion time calculation unit 23a and a conversion format calculation unit 23b.
  • the server 20 has various hardware components including a control microcomputer as in a general recorder. Each component shown in FIG. 1 is realized by executing a program prepared in advance by a microcomputer, or by a dedicated integrated circuit that executes a predetermined operation at high speed.
  • the DLNA processing unit 21 provides functions on the DMS side that are necessary for the server 20 functioning as a DMS and the mobile terminal 10 functioning as a DMP to operate in accordance with the DLNA guidelines. Therefore, the server 20 including the DLNA processing unit 21 can exchange contents with the mobile terminal 10 connected to the communication network NW without any special setting.
  • the communication control unit 22 is an interface for connecting the server 20 to the communication network NW, and realizes data communication including content transfer between the server 20 and the portable terminal 10 according to the control of the DLNA processing unit 21.
  • the conversion control unit 23 performs control related to conversion of the specified content format for the content.
  • content format means the bit rate, format (codec type, etc.), resolution, etc. at the time of reproduction.
  • the conversion completion time calculation unit 23a in the conversion control unit 23 performs calculation related to the time when the conversion of the content by the conversion processing unit 24 is completed. Specifically, when converting content in the content format determined by the conversion format calculating unit 23b, the conversion completion time calculating unit 23a calculates a time required for the conversion or a scheduled completion time. For example, the time is calculated by the following method.
  • the conversion format calculation unit 23b in the conversion control unit 23 calculates a conversion format applicable when content format conversion is performed according to the situation. Specifically, the conversion format calculation unit 23b compares the reproducible information acquired from the mobile terminal 10 with the content format (bit rate / format / resolution, etc.) supported by the server 20 for conversion. The format which can be transmitted to is calculated. Further, the content format that can be stored with the free space is calculated in consideration of the free space information of the internal memory of the mobile terminal 10 as the storage destination or the external memory connected to the mobile terminal 10.
  • the reproducible information is information indicating the characteristics (format) of content that can be replayed on the mobile terminal 10 and includes, for example, “bit rate”, “format (type of codec, etc.)”, and “resolution”.
  • the free capacity information represents the free capacity of the storage area designated by the internal memory or the external memory ID of the mobile terminal 10.
  • the external memory ID is information for identifying a storage area of the external memory connected to the portable terminal 10 that is designated as a content storage destination when the external memory is used.
  • each value is as follows.
  • Content information before conversion 1 hour (length), MPEG4 (format), 2 Mbps (bit rate) ⁇
  • Free space 500MB Reproducible information
  • 51 Bit rate (1.5 Mbps, 1.0 Mbps) Format (MPEG2, MPEG4) Resolution (VGA (640x480), QVGA (320x240))
  • the communication control unit 22 acquires reproducible information from the mobile terminal 10, and the conversion format calculation unit 23 b selects a format that can be converted by the conversion processing unit 24.
  • the conversion format calculation unit 23b calculates the converted file size by the following calculation formula and compares it with the free space.
  • the conversion format calculation unit 23b selects 1000 (kbps) as the bit rate after conversion.
  • the post-conversion content information calculation unit 23c Based on the reproducible information 51 and the free space information from the mobile terminal 10, the post-conversion content information calculation unit 23c obtains the content format information of the content that can be played back by the mobile terminal 10 after the conversion of the content format by the conversion processing unit 24. calculate. This information is transmitted to the mobile terminal 10B by the communication control unit 22 as a part of a content list (see FIG. 10 described later).
  • the conversion processing unit 24 converts the format of the designated content in accordance with the conversion format calculated by the conversion format calculation unit 23b. This conversion can be performed independently on the server 20 regardless of the presence or absence of communication, and the converted content data is stored in the storage unit 25.
  • the storage unit 25 stores various reproducible content data such as moving images, still images, and music. In addition, a plurality of contents having different formats can be stored for the same content. That is, it is possible to store the original content before converting the content format such as bit rate, format, and resolution, and the content after converting the format.
  • the storage unit 25 stores the stored content information as a content list.
  • the external memory ID storage unit 26 stores information of an external memory ID for identifying the storage destination external memory when the content data on the server 20 is stored in an external memory outside the server 20.
  • This external memory corresponds to a specific memory (for example, a memory card) connected to the mobile terminal 10.
  • the external memory ID collation unit 27 authenticates the external memory connected to the mobile terminal 10 and the external memory ID stored in the external memory ID storage unit 26 and the external memory connected to the mobile terminal 10. Collate with external memory ID.
  • FIG. 2 shows an outline of an operation sequence up to the start of content format conversion in the content processing system of the present embodiment.
  • the display unit 16 displays a list of devices (device list) connected to the communication network NW as a DMS on the screen (step S101).
  • the server 20 since the server 20 exists on the communication network NW, the server 20 is also included in the displayed device list.
  • the server 20 can be selected from the displayed device list.
  • the communication control unit 12 uses, for example, “HTTP POST” or the like to the selected server 20.
  • a content list acquisition request is transmitted (step S103).
  • the server 20 transmits a content list acquisition response to the mobile terminal 10 using “HTTP 200 OK” or the like (step S202).
  • the contents stored in the storage unit 25 are included as information such as a content list 41 shown in FIG.
  • the display unit 16 displays the received content list information on the screen (step S105). For example, information such as the content list 42 illustrated in FIG. 4 is displayed on the screen of the mobile terminal 10. Accordingly, by operating the mobile terminal 10 with the key operation unit 17, any content can be selected from the displayed content list 42, and an instruction to start downloading the selected content can be given.
  • the communication control unit 12 uses the “HTTP POST” or the like to notify the mobile terminal 10 of its own information notification 50. It transmits to the server 20 (step S108).
  • the self information notification 50 includes reproducible information 51 and free capacity information 53.
  • the external information ID 52 is also included in the own information notification 50. Also included is information for specifying the content to be downloaded selected by the key operation unit 17 or the like. An example of the content of the self information notification is shown in FIG.
  • the server 20 When the communication control unit 22 receives the self-information notification 50 from the mobile terminal 10 (step S203), the server 20 returns a response to this (step S204). In the mobile terminal 10, the communication control unit 12 receives this response from the server 20 (step S109). Then, when the storage unit 25 includes the external memory ID in the received self information notification 50, the server 20 stores the information of the external memory ID 52 in the storage unit 25 (step S205).
  • the conversion format calculation unit 23b calculates the conversion format of the designated content (step S206). Specifically, the conversion format calculation unit 23 b calculates an optimal conversion format based on the reproducible information 51 and the free space information 53 included in the received own information notification 50.
  • the optimum conversion format means, for example, that the converted format has the highest image quality that can be reproduced by the mobile terminal 10, for example.
  • the conversion format calculation unit 23b selects a conversion format with relatively low image quality in accordance with the size of the free space so that the converted content can be stored. To do.
  • the conversion completion time calculation unit 23a calculates the conversion completion time of the content designated by the mobile terminal 10 (step S207). For example, the conversion completion time calculation unit 23a estimates the time required for conversion by the conversion processing unit 24 based on the conversion format selected by the conversion format calculation unit 23b, and calculates the expected conversion completion time.
  • the communication control unit 22 transmits a conversion start notification to the portable terminal 10 using “HTTP POST” or the like (step S 208).
  • This conversion start notification may include information 55 of the conversion completion time calculated by the conversion completion time calculator 23a.
  • the conversion processing unit 24 starts conversion (step S209). That is, the conversion processing unit 24 converts the format of the content instructed to be downloaded by the self information notification 50 according to the conversion format calculated by the conversion format calculation unit 23b. This conversion is performed regardless of the presence or absence of communication. That is, even when the mobile terminal 10 or the server 20 is disconnected from the communication network NW, the conversion on the server 20 side is continued offline without being interrupted.
  • step S110 when the communication control unit 12 receives the conversion start notification from the server 20 (step S110), the display unit 16 executes a conversion start notification display process (step S111). That is, the display control unit 15 causes the display unit 16 to display a message indicating that conversion has started, such as “Conversion has started. We will inform you when the conversion is completed” on the display screen 61 shown in FIG.
  • the alarm control unit 14 executes an alarm setting process (step S112).
  • the alarm control unit 14 sets a timer (not shown) included in the mobile terminal 10 so that an alarm for alerting the user is generated at the time when the conversion is completed, a time zone close to this time, or a related time.
  • the alarm may be performed by displaying an alarm on the display unit 16, or an alarm sound may be output by a sound output unit (not shown).
  • the content download is performed after the conversion (step S209) in the server 20 is completed.
  • This conversion may take a long time (eg, 1 hour).
  • the server 20 while the server 20 is performing conversion, the mobile terminal 10 does not need to perform any special processing regarding download, and the server 20 can perform conversion offline. Therefore, the mobile terminal 10 can be moved away from the communication network NW.
  • FIG. 3 shows an outline of an operation sequence after completion of conversion in the content processing system of the present embodiment.
  • step S121 an alarm is generated by the alarm control unit 14 (step S121).
  • the user instructs reconnection to the communication network NW through the key operation unit 17 in accordance with the alarm notification (step S122).
  • the communication control unit 12 transmits a reconnection notification 56 to the server 20 in accordance with a user instruction from the key operation unit 17 (step S123).
  • the reconnection notification 56 includes terminal identification information 56 a for identifying the mobile terminal 10. Further, when an external memory is connected to the portable terminal 10, an external memory ID 56b for identifying the external memory is also included.
  • the communication control unit 22 receives the reconnection notification 56 from the portable terminal 10 (step S210).
  • the external memory ID verification unit 27 performs verification of the external memory ID (step S211). That is, the external memory ID collation unit 27 includes the external memory ID 52 stored in the external memory ID storage unit 26 before starting the conversion and the external memory ID 56b of the reconnection notification 56 received by the communication control unit 22. Check whether they match.
  • the mobile terminal 10 collates terminal identification information by a terminal identification information collation unit (not shown). That is, even before the conversion by the conversion processing unit 24, the mobile terminal 10 transmits the terminal identification information by the communication control unit 12, and this terminal identification information and the terminal identification information of the reconnection notification 56 received in step S210.
  • the terminal identification information matching unit determines whether 56a matches.
  • the server 20 causes the communication control unit 22 to transmit a conversion completion notification to the portable terminal 10 using “HTTP POST” or the like (step S212).
  • the case where the collation is successful is a case where the mobile terminal 10 which has instructed to start downloading is the same as the mobile terminal 10 which has transmitted the reconnection notification 56 and the data storage destination is also the same.
  • the collation result by a terminal identification information collation unit (not shown) is coincident, and when the data storage destination is the same, the collation result by the external memory ID collation unit 27 is coincident. Means the case.
  • the communication control unit 12 receives the conversion completion notification from the server 20 (S124).
  • the display control unit 15 causes the display unit 16 to display a message indicating that the conversion is complete, such as “Conversion is complete? Do you want to download?” On the display screen 62 shown in FIG. In response to this message, the user can select data acquisition start by the key operation unit 17.
  • the communication control unit 12 transmits a data acquisition request to the server 20 using “HTTP GET” or the like (step S126).
  • the communication control unit 12 receives this data acquisition request (step S213).
  • the communication control unit 22 transmits a response to the data acquisition request to the server 20 (step S214), and starts data transmission (step S215) of the content (post-conversion content) converted by the conversion processing unit 24. .
  • the communication control unit 12 receives a response to the data acquisition request from the server 20, and then sequentially receives the converted content data transmitted from the server 20 (step S128).
  • the content data received by the mobile terminal 10 is stored in the internal memory of the mobile terminal 10 or an external memory connected to the mobile terminal 10.
  • step S1208 When the mobile terminal 10 acquires content data in step S128, a message indicating that the display control unit 15 is executing a download such as “Downloading” on the display screen 63 shown in FIG. Is displayed. At this time, since the content conversion has already been completed, the data can be transferred at a high speed. That is, the download time is shortened.
  • the server 20 notifies the mobile terminal 10 of the transmission completion (step S216).
  • the communication control unit 12 receives the transmission completion notification from the server 20 (step S129)
  • the portable terminal 10 indicates that the download such as “Download completed” on the display screen 64 shown in FIG. After displaying the message shown, this process is terminated.
  • the mobile terminal 10 includes the display unit 16 as a presentation unit for presenting information.
  • the communication control unit 12 as a receiving unit receives the conversion completion time information indicating the time required until the conversion of the content by the server 20 as the content processing server is completed or the time corresponding to the conversion completion time.
  • the display unit 16 or the like presents the conversion completion time of the content converted by the server 20 based on the conversion completion time information received by the communication control unit 12.
  • the server 20 performs a conversion completion time as a conversion completion time estimation unit that estimates a required time until the conversion of content by the conversion processing unit 24 as a content format conversion processing unit is completed or a scheduled time corresponding to the conversion completion time.
  • a calculation unit 23a is provided.
  • the communication control unit 22 as the server transmission unit transmits conversion completion time information indicating the scheduled time estimated by the conversion completion time calculation unit 23a to the mobile terminal 10 as the content processing apparatus.
  • the user of the mobile terminal 10 disconnects the mobile terminal 10 from the communication network NW after content conversion in the server 20 is started, the user can know the conversion completion time by an alarm or the like. Furthermore, the time to reconnect to the communication network NW can be easily grasped.
  • the mobile terminal 10 as the content processing apparatus is configured such that the communication control unit 12 as the apparatus transmission unit uses the external memory ID as identification information of the external memory connected to the mobile terminal 10 as the server 20 as the content processing server. Is transmitted before and after the conversion of the content (for example, step S108 and step S123).
  • the server 20 serves as a determination unit that determines whether or not the external memory ID 52 transmitted before content conversion by the mobile terminal 10 matches the external memory ID 56b transmitted after content conversion by the mobile terminal 10.
  • An external memory ID verification unit 27 is provided.
  • the communication control unit 22 as the server transmission unit transmits the content converted by the conversion processing unit 24 as the content format conversion processing unit when it is determined by the external memory ID matching unit 27 that they match.
  • the server 20 transmits information indicating that the communication control unit 22 does not coincide to the portable terminal 10. Also good.
  • the mobile terminal 10 may display that the display unit 16 has replaced the storage destination external memory ID before the conversion of the content. As a result, the user can be requested to reinsert the external memory.
  • the server 20 manages various content information stored in the storage unit 25 as a content list 71.
  • Information of the content list 71 is stored in a storage unit (not shown).
  • information on a name (content name), a format (Format), a bit rate (bps), a resolution, and a size (data size) is managed for each of a plurality of contents.
  • the mobile terminal 10 transmits its own information notification 50 to the server 20.
  • the server 20 may transmit the information of the content list 71 to the mobile terminal 10.
  • the server 20 can reflect the contents of the reproducible information 51 included in the own information notification 50 received from the mobile terminal 10 in the contents of the content list 71. That is, not only the content currently stored on the server 20 but also content format information that can be reproduced on the mobile terminal 10 side after format conversion can be included in the content list 71 and transmitted to the mobile terminal 10.
  • the mobile terminal 10 receives such a content list 71 and displays information such as a content list 72 shown in FIG. 10 on the screen of the display unit 16. Thereby, information of a large number of contents can be presented to the user.
  • the content list 72 indicates a content format that can be played back by the mobile terminal 10 and whether or not content format conversion by the server 20 is necessary.
  • “MPEG4” and “MPEG2” exist as selectable formats for the content whose name is “content A”.
  • content A whose format is “MPEG4”
  • the display control unit 15 of the portable terminal 10 causes the display unit 16 to display the content list 72 as shown in FIG. 10, for example, in the content list display process in step S105 of FIG.
  • the display unit 16 displays each content that can be played back by downloading for each content format, and displays whether or not it is “required conversion” that requires conversion by the server 20 for each content format. To do. For example, when conversion is necessary, a message to that effect is displayed (see reference numeral 72a in FIG. 10).
  • the reproducible information 51 and the free space information 53 of the mobile terminal 10 have the following contents.
  • MPEG4 or MPEG2 content can be played-Bit rate: 1.5 Mbps or 1.0 Mbps content can be played-Resolution: VGA or QVGA content can be played-Free space: 1.0 GB or less content can be acquired Possible
  • the post-conversion content information calculation unit 23c of the server 20 identifies whether or not format conversion is possible so that each content before conversion stored in the storage unit 25 matches the reproducible information 51. If format conversion is possible, the post-conversion content information calculation unit 23 c generates new content information representing the post-conversion content format and adds it to the content list 71.
  • the content list 71 is created by distinguishing the content information generated after the conversion from the content information that already exists.
  • the content in the converted content format is stored in the storage unit 25.
  • the post content information calculation unit 23c generates new content information. That is, content information in a format that allows the data size after format conversion to fit in the free space is generated.
  • the content list is created on the server 20 side.
  • the content list may be created on the mobile terminal 10 side.
  • the mobile terminal 10 needs to obtain a list of information that can be converted by the conversion processing unit 24 of the server 20 from the server 20.
  • the mobile terminal 10 as a content processing apparatus includes a content storage unit (such as an internal memory or an external memory not shown) that stores content, a display unit 16 as a content list display unit, and a display unit as a presentation unit. 16.
  • the display unit 16 displays a content format that can be reproduced by the DLNA processing unit 11 as a content reproduction unit as a content list 72 for each content.
  • the display unit 16 has a content capacity that is greater than the content format of the content included in the content list 72 and the content format of the content that is not stored by the server 20 as the content processing server, or the free capacity of the content storage unit.
  • the conversion required information 72a indicating that the content format needs to be changed is presented.
  • the user of the mobile terminal 10 can know in advance the content format of the content that needs to be converted.
  • the mobile terminal 10 as the content processing apparatus of the present embodiment is a mobile terminal as a content processing apparatus that reproduces content after downloading.
  • the portable terminal 10 includes a display control unit 15 as a content reproduction unit that reproduces content, and a communication control unit 12 as a transmission unit and a reception unit.
  • the communication control unit 12 transmits reproducible information 51 indicating a content format reproducible by the display control unit 15 to the server 20 as a content processing server that converts the content format. Further, the communication control unit 12 receives the content converted by the server 20 based on the transmitted reproducible information 51.
  • the server 20 as the content processing server of the present embodiment includes a storage unit 25 as a content storage unit, a communication control unit 22 as a server reception unit and a server transmission unit, and a conversion processing unit as a content format conversion processing unit. 24.
  • the storage unit 25 stores content in a predetermined content format.
  • the conversion processing unit 24 converts the content format of the content stored in the storage unit 25 based on the reproducible information 51 received by the communication control unit 22.
  • the communication control unit 22 receives the reproducible information 51 transmitted by the portable terminal 10 as the content processing apparatus, and transmits the converted content after the conversion processing unit 24 completes the conversion.
  • the content can be played after the download is completed. Moreover, since the download can be started after the conversion is completed, the time required for the download can be shortened. That is, since it is not necessary to connect the DMP to the server for a long time, convenience when using the portable terminal as the DMP is improved.
  • FIG. 11 An example of the functional configuration of the content processing system of this embodiment is shown in FIG.
  • components corresponding to those of the content processing system shown in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted or simplified.
  • the mobile terminal 10 ⁇ / b> B includes a user action history storage unit 31, a network area remaining time calculation unit 32, and a scheduler control unit 33 in addition to the components of the mobile terminal 10 shown in FIG. 1.
  • the conversion control unit 23B of the server 20B includes a conversion priority calculation unit 23d in addition to the components of the conversion control unit 23 illustrated in FIG.
  • the mobile terminal 10B calculates the time zone in which the user is within the communicable range of the communication network NW from the user's action history and scheduler information. Based on this time zone information, the server 20 performs conversion preferentially from content that can be converted within the limited time of the user. Thereby, the server 20 can convert the content in consideration of the convenience of the user.
  • the user action history storage unit 31 acquires the following information and stores it as a user action history.
  • the scheduled action time of the user is acquired and stored.
  • a location information acquisition function such as GPS (Global Positioning System)
  • GPS Global Positioning System
  • a GPS information acquisition unit (not shown) acquires and stores the location information of the user and the time when the location information was acquired. To do.
  • the time at the time when the communication network NW shifts outside the service area is acquired, and this is stored as the user's time to go out.
  • the network area remaining time calculation unit 32 calculates the remaining time that the user exists in the network area based on the action history information stored in the user action history storage unit 31.
  • the alarm time set by the alarm control unit 14 is AM 6:30. Further, it is assumed that the average (or earliest) time of the history of transitioning out of the communication network NW stored in the user behavior history storage unit 31 is AM 7:30. In addition, it is assumed that the time when the user gives an instruction to start downloading using the key operation unit 17 or the like is AM 7:00.
  • the remaining time calculation unit 32 within the network area predicts that the time until the user moves out of the area is “30 minutes”.
  • the communication control unit 12 of the mobile terminal 10 ⁇ / b> B transmits information including “30 minutes” representing the “time remaining in the network” included in the own information notification 50, for example.
  • the scheduler control unit 33 stores and manages information on the action schedule of the user of the mobile terminal 10B (such as event type and time). Further, when the scheduled time of each event approaches, the alarm control unit 14 may be controlled to generate an alarm.
  • the conversion priority calculation unit 23d of the server 20B reflects the information on the remaining time in the network area from the mobile terminal 10B in the priority control of the content converted by the conversion processing unit 24. That is, the content format content that falls within the remaining time within the network area is preferentially converted among the conversion times of the content calculated by the conversion format calculation unit 23b and the conversion completion time calculation unit 23a.
  • Content A and the content B are download targets, and the information of the content A, the content B, and the mobile terminal 10 is as follows.
  • Content A 1 hour (length), MPEG4 (format), 2 Mbps (bit rate)
  • Content B 30 minutes (length), MPEG4 (format), 2 Mbps (bit rate)
  • Free space 750MB Reproducible information
  • 51 Bit rate (1.5 Mbps, 1.0 Mbps) Format (MPEG2, MPEG4) Resolution (VGA (640 x 480), QVGA (320 x 240)) ⁇ Remaining time within network: 30 minutes ⁇
  • Conversion format and conversion completion time for content A: 1000 (kbps) / 1024/8 ⁇ 60 ⁇ 60 about 440 Mbyte, 44 minutes> 30 minutes
  • the conversion priority calculation unit 23d performs control so that the conversion processing unit 24 prioritizes “content B” that falls within the remaining time (30 minutes) within the network area.
  • converting the content B preferentially means that the conversion of the content B is started before the content A or only the content B is converted without converting the content A.
  • the mobile terminal 10B as the content processing apparatus includes the remaining time calculation unit 32 in the network area as the connectable time estimation unit. Based on the action history information indicating the action history of the user of the mobile terminal 10B, the remaining time in the network area calculation unit 32 is the remaining time in the network area as the connectable time to the server 20B as the content processing server of the mobile terminal 10B. Is estimated.
  • the communication control unit 12 as a transmission unit transmits connectable time information indicating the connectable time estimated by the remaining network time calculation unit 32 to the server 20B, and the server 20 performs the connection based on the transmitted connectable time information. Receive the converted content.
  • the communication control unit 22 as the server reception unit receives the connectable time information transmitted by the mobile terminal 10B as the content processing apparatus.
  • the server 20B includes a conversion priority calculation unit 23d as a content format selection unit.
  • the conversion priority calculation unit 23d is connected based on the connectable time information received by the communication control unit 22 and the conversion required time of each format of the content converted by the conversion processing unit 24 as the content format conversion processing unit. A content format that completes conversion before the time corresponding to the possible time is selected.
  • the content is converted by the server 20B within a predetermined time, and the mobile terminal 10B can preferentially download the content that can be reproduced and acquired by the mobile terminal 10B.
  • the present invention is useful for a content processing apparatus, a content processing system, a content processing program, and the like that can play back content after the download is completed even if the network is disconnected before the content download is completed.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Graphics (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

Le dispositif de traitement de contenu selon l'invention est un dispositif terminal mobile (10) destiné à reproduire un contenu après la fin d'un téléchargement qui comprend une unité de commande d'affichage (15) permettant de reproduire le contenu, et une unité de commande de communication (12) destinée à envoyer des informations reproductibles représentant un format de contenu qui peut être reproduit par l'unité de commande d'affichage (15) à un serveur (20) qui convertit le format de contenu et recevoir un contenu qui a été converti par le serveur (20) sur la base des informations reproductibles envoyées.
PCT/JP2012/003872 2011-06-16 2012-06-13 Dispositif de traitement de contenu, système de traitement de contenu, procédé de traitement de contenu, et programme de traitement de contenu WO2012172799A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011134552A JP5187984B2 (ja) 2011-06-16 2011-06-16 コンテンツ処理装置およびコンテンツ処理システム
JP2011-134552 2011-06-16

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Publication Number Publication Date
WO2012172799A1 true WO2012172799A1 (fr) 2012-12-20

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PCT/JP2012/003872 WO2012172799A1 (fr) 2011-06-16 2012-06-13 Dispositif de traitement de contenu, système de traitement de contenu, procédé de traitement de contenu, et programme de traitement de contenu

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WO (1) WO2012172799A1 (fr)

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JP6444398B2 (ja) * 2013-07-03 2018-12-26 コニンクリーケ・ケイピーエヌ・ナムローゼ・フェンノートシャップ セグメント化コンテンツのストリーミング
JP6489838B2 (ja) 2015-01-15 2019-03-27 キヤノン株式会社 送信装置、送信方法、及びプログラム
US10171847B2 (en) 2015-09-08 2019-01-01 Funai Electric Co., Ltd. Information device and distribution device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006339765A (ja) * 2005-05-31 2006-12-14 Hitachi Ltd 予約録画システム、携帯端末装置、録画装置および動画コンテンツ処理方法
JP2007235865A (ja) * 2006-03-03 2007-09-13 Kenwood Corp 再生システム
JP2011119859A (ja) * 2009-12-01 2011-06-16 Sharp Corp コンテンツ再生システム、コンテンツ再生方法、プログラム、および、記録媒体

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006339765A (ja) * 2005-05-31 2006-12-14 Hitachi Ltd 予約録画システム、携帯端末装置、録画装置および動画コンテンツ処理方法
JP2007235865A (ja) * 2006-03-03 2007-09-13 Kenwood Corp 再生システム
JP2011119859A (ja) * 2009-12-01 2011-06-16 Sharp Corp コンテンツ再生システム、コンテンツ再生方法、プログラム、および、記録媒体

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