JP5813535B2 - Terminal device, control method thereof, and control program thereof - Google Patents

Description

  The present invention relates to a terminal device, a control method thereof, a control program thereof, and a server device, and more particularly to a terminal device for reproducing content, a control method thereof, a control program thereof, and a server device.

  Conventionally, various techniques have been proposed for reproducing content stored in a device on a network in a terminal device.

  For example, Patent Document 1 (Japanese Patent Application Laid-Open No. 2007-156783) discloses a system for controlling management of a purchased book list and execution of download in a plurality of terminals as an electronic book system.

  Patent Document 2 (Japanese Patent Laid-Open No. 2007-193098) discloses a technology related to reproduction of content in the terminal and on a network in a portable terminal in a content reproduction system. The system includes a data storage server, a user PC that can communicate with the data storage server, a network server, and a portable terminal that can communicate with the data storage server via the network server. In the system, the music list creation means of the network server creates a list of content data stored in the user data storage unit of the data storage server. The user selects arbitrary content from the list stored in the music list storage unit of the mobile terminal by the selection means of the mobile terminal. The storage location determination unit of the mobile terminal determines whether the selected content is stored in the music data storage unit of the mobile terminal. If it is determined that the music data is not stored in the music data storage unit, the music playback unit of the mobile terminal acquires and plays back the content data of the selected content from the user data storage unit of the data storage server via the network server. To do.

  Further, Patent Document 3 (International Publication No. 2001/0446859) discloses that when only a part of content stored in a WWW (world wide web) server or storage medium is downloaded at a terminal, the efficiency of the content is reduced. A system for enabling good browsing is disclosed. Specifically, the manual providing device creates a list including an index of contents to be downloaded to the manual using device. For each index described in this list, a link to the corresponding content is set. Then, the manual providing device transmits the folder including the list and the content to be downloaded to the manual using device.

  Japanese Patent Laid-Open No. 2003-186785 discloses an information distribution system for distributing content information from a local server to a user terminal. In the system, when the content requested for distribution from the user terminal exists in the content list on the main server side and does not exist in the content list on the local server, the local server issues a download request for the content to the main server. Thus, the distribution of the content information to the user terminal and the download of the content information to the local server are executed simultaneously.

  Patent Document 5 (Japanese Patent Application Laid-Open No. 2004-004245) describes content that allows a user who has purchased a CD (compact disc) to play back the music on the purchased CD without selecting time and place. A data providing system is disclosed. In this system, when recording music data on a CD, unique identification information is added to each disc. The ID management server manages music data recorded on each CD based on the identification information. The music server stores music data. The music distribution server distributes music data in response to a distribution request from the portable digital audio device. When the end user purchases the CD, the end user performs registration processing and sends identification information to the ID management server via the network. Then, based on the identification information, a list indicating which music is held for each user is created. When music distribution is received by a portable digital audio device, the music held by each user is preferentially reproduced or downloaded.

JP 2007-156783 A JP 2007-193098 A International Publication No. 2001/0446859 JP 2003-186785 A JP 2004-004245 A

  According to the conventional technology described above, the user can obtain a list of contents purchased by the user online from the server and display the list on his / her terminal.

  However, in a conventional system, a list of contents including contents stored in a server on a network can be displayed online, but cannot be displayed offline in a terminal. Here, online means a state connected to the network, and offline means a state not connected to the network.

  The present invention has been conceived in view of such a situation, and an object of the present invention is to provide a terminal device capable of displaying a list of contents including content stored in a server on a network offline, a control method thereof, and , Its control program, and server apparatus.

A terminal device according to an aspect of the present invention is a terminal device that includes a playback unit for playing back content, an operation unit for receiving input of operation information, and a content storage unit for storing content. Included in the list according to a specific operation on the communication means for acquiring a list of contents that the user of the terminal device has usage rights from the server apparatus, a list storage means for storing the list, and the operation means Display control means for displaying information of each content on the display device, and the display control means causes the display device to display the information of each content included in the list in a manner corresponding to the storage location of each content. The communication unit acquires the list from the device that stores the list when the operation unit requests the display of the list. The display control means is the case where the operation means requests the display of the list, and when the communication means cannot obtain the list from the device storing the list, the display control means displays the list stored in the list storage means. Display .

  Preferably, the display control unit determines a display mode of information of each content included in the list depending on whether or not each content is stored in the content storage unit.

  Preferably, the list storage unit stores the list together with information indicating an expiration date of the list, and the communication unit stores the validity stored in the list storage unit when an operation for requesting display of the list is performed in the operation unit. The list is acquired from the device on the condition that the expiration date of the information indicating the expiration date has expired, and the display control means is stored in the list storage means when the operation means requests display of the list. If the information indicating the expiration date has expired, the communication means displays the list acquired from the device, and the information indicating the expiration date stored in the list storage means has not expired. Displays the list stored in the list storage means.

  Preferably, the list storage unit stores the list together with the meta information of the list, and the communication unit receives the meta information of the list from the device that stores the list when the operation unit requests the display of the list. When the acquired meta information of the list does not match the meta information of the list stored in the list storage means, the list is acquired from the device, and the display control means performs an operation for requesting display of the list by the operating means. If the meta information of the list acquired by the communication means does not match the meta information of the list stored in the list storage means, the communication means displays the list acquired from the device, and the communication means acquires When the meta information of the list matches the meta information of the list stored in the list storage unit, the list stored in the list storage unit is displayed.

  Preferably, the communication means communicates with a device for storing the list when an operation for requesting display of the list is performed in the operation means, and the display control means is operated for requesting display of the list in the operation means. In this case, when the communication unit can communicate with the device, the communication unit displays a list acquired from the device, and when the communication unit cannot communicate with the device, the list stored in the list storage unit is displayed. .

  Preferably, when an operation is performed on the content whose information is displayed in the list with respect to the operation unit, the reproduction unit is configured such that the content that is an operation target in the operation unit is stored in the content storage unit. Reproduces the content, and the communication means acquires the content from the device storing the content and stores the content in the content storage means when the content that is the target of the operation in the operation means is not stored in the content storage means. Store in the means.

A terminal device according to another aspect of the present invention is a terminal device that includes a playback unit for playing back content, an operation unit for receiving input of operation information, and a content storage unit for storing content. And a communication means for acquiring a list of contents that the user of the terminal device has usage rights from the server apparatus, a list storage means for storing the list, and a list according to a specific operation on the operation means. Display control means for displaying information on each content to be displayed on the display device, and the display control means displays the information on each content included in the list on the display device in a manner corresponding to the storage location of each content. is, in the content storage means, if not included with information on the list by the communication means has acquired content is stored, a list And updated to add information of a content that does not contain the information, stored in the list storage means.

  Preferably, in the content storage unit, when content that does not include information in the list acquired by the communication unit is stored in the content storage unit, information on the content that does not include the information in the list is stored in the list. Displayed with information for instructing content upload.

  The server device according to the present invention includes, among information about content that a specific user has usage rights, information about content transmitted from a specific user, and information about content that can be disclosed to a specific user. A generating unit that generates a list of contents that can be reproduced by a specific user from at least one information, and a transmitting unit that transmits the list generated by the generating unit to a terminal used by the specific user.

Control method of a terminal device according to still another aspect of the present invention, content storage means for storing the content, reproduction means for reproducing the content, and a list storage means for storing a list of content A method of controlling the terminal device, executed in the terminal device comprising: a step of accepting input of operation information; a step of acquiring a list of contents that the user of the terminal device has usage rights from the server device ; A step of storing in the list storage means; and a step of displaying information on each content included in the list on a display device, wherein the step of displaying the list includes storing information on each content included in the list as a storage location of each content. stearyl in a manner that depends, is displayed on the display device, the step of obtaining includes accepting an input to the Receiving the operation information requesting the display of the list in the group, the step of displaying the list includes obtaining the list from a device storing the list, and inputting the operation information requesting the display of the list If the list cannot be obtained from the device storing the list in the obtaining step, the list stored in the list storage means is displayed on the display device .

A control program for a terminal device according to still another aspect of the present invention is a control program executed on a computer of a terminal device including content storage means for storing content and playback means for playing back content. The control program displays, on the computer, a step of accepting input of operation information, a step of obtaining a list of contents that the user of the terminal device has usage rights from the server apparatus, and information of each content included in the list The step of displaying the list on the device, and the step of displaying the list is a step of displaying and acquiring information on each content included in the list in a manner corresponding to the storage location of each content. Enter the operation information that requests display of the list in the step of accepting Receiving the list from a device that stores the list, and displaying the list is a step of acquiring operation information requesting display of the list and acquiring When the list cannot be obtained from the device storing the list, the list stored in the list storage means is displayed on the display device .
According to still another aspect of the present invention, there is provided a terminal device control method comprising: content storage means for storing content; playback means for reproducing content; and list storage means for storing a list of content. A method of controlling the terminal device, executed in the terminal device comprising: a step of accepting input of operation information; a step of acquiring a list of contents that the user of the terminal device has usage rights from the server device; A step of storing in the list storage means; and a step of displaying information on each content included in the list on a display device, wherein the step of displaying the list includes storing information on each content included in the list as a storage location of each content. In the step of being displayed on the display device in a manner corresponding to If it contains information that is not included in the acquired list Te includes updating a list that is the acquisition, to include information that is not included in the list.
A control program for a terminal device according to still another aspect of the present invention is a control program executed on a computer of a terminal device including content storage means for storing content and playback means for playing back content. The control program displays, on the computer, a step of accepting input of operation information, a step of obtaining a list of contents that the user of the terminal device has usage rights from the server apparatus, and information of each content included in the list The step of displaying on the device and executing the step of displaying the list display information of each content included in the list on the display device in a manner corresponding to the storage location of each content, and the content storage means acquires the information. Including information not included in the list acquired in the step Includes updating a list that is the acquisition, to include information that is not included in the list.

  According to the present invention, in the terminal device, a list of contents for which the user of the terminal device has a right to use is acquired from the server device, and the information of each content included in the list corresponds to the storage location of each content. And displayed on the display device. In the terminal device, a list of contents for which the user of the terminal device has usage rights can be displayed offline. In the display of the list, the display mode of information representing each content is determined depending on whether or not the list is stored in the terminal. Thereby, the user can easily recognize which content can be reproduced offline among the content displayed in the list.

It is a figure which shows typically the whole structure of the content delivery system containing one Embodiment of the terminal device of this invention, and a server apparatus. It is a figure which shows typically the block configuration of the system shown in FIG. It is a figure which shows typically the hardware constitutions of a terminal. It is a figure which shows typically the hardware constitutions of a content delivery server. It is a figure which shows typically the hardware constitutions of a content list delivery server. It is a figure which shows an example of a meta information file. It is a figure which shows an example of the bookshelf screen displayed when the terminal is operate | moving in local mode. It is a figure which shows an example of the bookshelf screen displayed when the terminal is operate | moving in online mode. It is a flowchart of the process performed in order to display a bookshelf screen in a terminal. It is a flowchart of the subroutine of the process in step S60 of FIG. It is a flowchart of the process for reproducing | regenerating a content. It is a figure which shows an example of the state as which the content was displayed. It is a figure which shows the other example of the bookshelf screen displayed in a terminal. It is a flowchart of the process performed in order to display a bookshelf screen as was shown by FIG. It is a figure which shows an example of the inquiry screen about content download. It is a figure which shows the other example of the bookshelf screen displayed in a terminal. It is a flowchart of the process performed in order to display a bookshelf screen as shown in FIG. 6 is a flowchart of processing executed when a content upload request is made. It is a figure which shows the specific example of a terminal. It is a figure which shows the specific example of a terminal. It is a figure which shows the specific example of a terminal. It is a figure which shows the specific example of a terminal.

  Hereinafter, embodiments of a terminal device and a server device of the present invention will be described with reference to the drawings. In the following description, elements having the same function and action are denoted by the same reference numerals throughout the drawings, and redundant description will not be repeated.

[First Embodiment]
<Overall system configuration>
FIG. 1 is a diagram schematically showing an overall configuration of a content distribution system including an embodiment of a terminal device and a server device of the present invention. In the present specification, the “terminal device” may be simply referred to as “terminal” for convenience.

  In the system shown in FIG. 1, each of terminals 100 </ b> A to 100 </ b> C communicates with content distribution servers 200 </ b> A and 200 </ b> B via network 1000. Thereby, in each of the terminals 100A to 100C, the content is downloaded, stored, and reproduced. Note that the reproduction of content in the terminals 100A to 100C is not limited to being performed together with downloading, and may be performed by streaming.

  The terminals 100A to 100C may be owned by the same user, for example. The user can download the content at one or more of the terminals 100A to 100C for the content that the user has the right to use by purchasing the content, and can reproduce the content on each terminal.

  In this specification, “the user has the right to use the content” is not limited to the case where the user purchases the content, but is qualified to play the content by becoming a member of a specific group. If the content can be played back by storing the content created by the user in a storage device accessible by the user, the free content can be played back for so-called free content provided to everyone. Including cases where possible.

  In the system of FIG. 1, the terminals 100 </ b> A to 100 </ b> C are owned by the same user, and the user has the right to use the contents 901, 902, and 903. In the system of FIG. 1, the user downloads the content 901 distributed by the content distribution server 200B at the terminal 100A, downloads the content 902 distributed by the content distribution server 200B at the terminal 100B, and then the terminal 100C. Thus, the content 903 distributed by the content distribution server 200A is downloaded.

  In the present embodiment, content means files of various formats such as electronic books, audio files, moving image files, and text files. In this specification, browsing of an electronic book is mainly described as an example of content reproduction. Note that the type of content to be played back in the present invention is not limited to an electronic book, and files of various forms such as music content, moving image content, and still image content are targeted.

  In the system of FIG. 1, a user purchase history database (DB) 311 and a bibliographic information DB 312 are provided.

  The user purchase history DB 311 stores information for specifying content purchased by each user. The bibliographic information DB 312 stores information such as the storage location of each content.

  In the system of FIG. 1, a content list distribution server 300 is provided. The content list distribution server 300 generates a list (content list) of contents each user has a right to use based on information stored in the user purchase history DB 311 and the bibliographic information DB 312 and distributes the list to the terminals 100A to 100C. In the present embodiment, the content list distribution server 300 constitutes a server device that distributes a list of contents that can be reproduced by the user.

  Each of the terminals 100 </ b> A to 100 </ b> C acquires a content list for content that the user of each terminal has a right to use from the content list distribution server 300.

  In this specification, the terminals 100A to 100C may be collectively referred to as “terminal 100”. Further, the content distribution servers 200A and 200B may be collectively referred to as “content distribution server 200”.

<System block configuration>
FIG. 2 is a diagram schematically showing a block configuration of the system shown in FIG.

  Referring to FIG. 2, in the system according to the present embodiment, each of terminals 100 </ b> A to 100 </ b> C can communicate with content list distribution server 300 and content distribution server 200 via network 1000. As described above, the content list distribution server 300 uses the information stored in the user purchase history DB 311 and the bibliographic information DB 312 to generate and distribute a content list for each user.

<Terminal block configuration>
FIG. 3 is a diagram schematically illustrating a hardware configuration of the terminal 100.

  The terminal 100 includes a processing unit 101 that controls the operation of the terminal 100 as a whole, a display unit 102 that includes a display device such as a liquid crystal display device, and an operation unit 103 that includes an input device such as a touch sensor. A storage unit 104 configured by a recording medium such as a hard disk, a communication unit 105 configured by a communication device such as a modem, and a flash memory 106.

The processing unit 101 includes a processor such as a CPU (Central Processing Unit).
The storage unit 104 includes a content storage unit 104A for storing data of the content body, a content DB 104B for storing bibliographic information of the content, and a user information storage unit 104C for storing information related to the user of the terminal 100. including. The storage unit 104 may be fixed to the main body of the terminal 100 or may be removable from the main body of the terminal 100. Specific examples of the recording medium include, for example, CD-ROM (Compact Disk-Read Only Memory), DVD-ROM (Digital Versatile Disk-Read Only Memory), USB (Universal Serial Bus) memory, memory card, FD (Flexible Disk), hard disk, magnetic tape, cassette tape, MO (Magnetic Optical Disk), MD (Mini Disk), IC (Integrated Circuit) card (excluding memory cards), optical card, mask ROM, EPROM, EEPROM (Electronically Erasable Programmable) A medium that stores the program in a nonvolatile manner, such as Read Only Memory).

  The processing unit 101 functions as a content playback unit 101A for playing back content stored in the content storage unit 104A and the like, and for displaying information on the content included in the content list on a display device such as the display unit 102. List display section 101B.

  The terminal 100 may not include a display device. In this case, the list display unit 101B causes the display device connected to the terminal 100 to display content information. The display unit 102 is realized by driver software or a driver circuit of the display device. In this case, the content playback unit 101A displays a video (or image) playback screen on the display device.

  When the content to be reproduced includes audio data, the content reproduction unit 101A causes the speaker inside the terminal 100 or an external speaker to output audio based on the audio data.

  The processing unit 101 further includes a content acquisition unit 101C and a content list acquisition unit 101D as its functions.

  The content acquisition unit 101C acquires desired content from the content distribution server 200 via the communication unit 105 and the network 1000. The acquired content is stored in the content storage unit 104A of the storage unit 104. The content list acquisition unit 101D acquires a content list from the content list distribution server 300 via the communication unit 105 and the network 1000. The acquired content list is stored in the content DB 104B.

  The flash memory 106 is a non-volatile memory that does not lose its stored contents even when the power is turned off, and functions as a cache memory that temporarily records a content list downloaded from the content list distribution server 300 as cache data, as will be described later. (Also functions as a data memory for recording data other than cache data). In addition, data other than cache data can be recorded in an area of the flash memory 106 where no cache data is recorded.

  Here, “cache data” is data stored in the flash memory 106. The “cache memory” is a function for temporarily recording the above-described content list and for reading the data from the flash memory instead of the storage unit 104 when the data is read to the storage unit 104. It is a memory having As the flash memory 106, a NAND flash memory or a NOR flash memory may be used.

<Block structure of content distribution server>
FIG. 4 is a diagram schematically illustrating a hardware configuration of the content distribution server 200.

  The content distribution server 200 communicates with the terminal 100 and the like via the network 1000, a processing unit 201 that controls the operation of the server as a whole, a storage unit 202 that stores data of the main body of the content to be distributed, and the like. And a communication unit 203.

  The processing unit 201 includes a processor such as a CPU (Central Processing Unit). The storage unit 202 is configured by a recording medium such as a hard disk. The communication unit 203 is configured by a communication device such as a modem.

<Block structure of content list distribution server>
FIG. 5 is a diagram schematically illustrating a hardware configuration of the content list distribution server 300.

  Referring to FIG. 5, content list distribution server 300 includes a processing unit 301 that controls the operation of content list distribution server 300 as a whole, a storage unit 302 that includes a recording medium, and a communication device such as a modem. And a communicator 303 configured.

The storage unit 302 includes a user purchase history DB 311 and a bibliographic information DB 312.
The processing unit 301 includes a processor such as a CPU. The processing unit 301 includes a list generation unit 301A and a list distribution unit 301B as its functions.

  The list generation unit 301 </ b> A generates a content list for each user based on information stored in the user purchase history DB 311 and the bibliographic information DB 312. The list distribution unit 301B transmits the content list of the user requested to be transmitted to the terminal 100 or the like via the communication unit 303 and the network 1000.

  In the example shown in FIG. 5, it is described that the content list distribution server 300 includes a user purchase history DB 311 and a bibliographic information DB 312, but these databases are configured by apparatuses different from the content list distribution server 300. May be. In this case, the list generation unit 301A acquires information for generating a content list by accessing an appropriate storage area of the device.

<Content DB in terminal>
The contents stored in the content DB 104B in the storage unit 104 of the terminal 100 will be described. Table 1 schematically shows the stored contents.

  In the content DB 104B, a content ID, a content file name, a content storage destination, a cover image file name, and a cover image storage destination are stored in association with each other.

The content ID is information for specifying each content.
The content file name is the file name of the main file of each content.

  The content storage destination is information for specifying the storage location in the content storage unit 104A of the main file of each content.

  The cover image file name is a file name of a file displayed as an image showing an outline of each content when content information is displayed as a list on the terminal 100 (on a bookshelf screen, which will be described later). For example, when the content is an electronic book, an example of a cover image file name is a file name of a thumbnail image of a cover of an actual book corresponding to the electronic book. When the content is music content, an example of a cover image file name is a thumbnail image of a jacket image of an album in which the content is recorded.

  The cover image storage destination is information for specifying the storage location of the cover image in the content storage unit 104A.

  The content list distributed from the content list distribution server is associated with a content ID, a content file name, and a cover image file name. When the content and its cover image are downloaded and stored in the content storage unit 104A of the storage unit 104, the content storage destination and the cover image storage destination are added to the information such as the content ID, and the content DB 104B Stored in

<User purchase history DB>
Next, the contents stored in the user purchase history DB 311 will be described. Table 2 schematically shows the stored contents.

  In the user purchase history DB, the user ID and the purchased content ID are stored in association with each other.

The user ID is information for identifying each user who uses the system of FIG.
The purchased content ID is a content ID of content purchased by each user on a content purchase site or the like. Note that the content ID of the content for which the user has usage rights may be stored as the purchased content ID.

  According to Table 2, it is recorded that the user with the user ID “SC0001” has purchased at least two contents with the content ID “ABCD1234” and the content ID “ABCD1235”.

<Bibliographic information DB>
Next, the contents stored in the bibliographic information DB 312 will be described. Table 3 schematically shows the stored contents.

  In the bibliographic information DB, the content ID, title, author, publisher name, release date, price, product summary, file name, download URL (1), cover image file name, and download URL (2) is stored in association with each other.

The content ID is information for specifying each content.
The title and author are the title and author of each content.

  The publisher name is information for specifying a company that published the electronic book when the target content is an electronic book, and is a label or the like when the target content is music content.

The release date and price are the release date and price of the target content.
The product overview is information representing an overview of the content of the target content.

The file name is the file name of the main body of the target content.
The download URL (1) is a URL (Uniform Resource Locator) that is accessed to download the main content file of the target content.

The cover image file name is the file name of the cover image described above.
The download URL (2) is a URL that is accessed to download a cover image file of the target content.

<Content list>
As described above, in the system according to the present embodiment, the content list distribution server 300 transmits a content list for the user of the terminal 100 to the terminal 100.

  The list generation unit 301 </ b> A acquires the user ID that is the target of the content list from the terminal 100. In response to this, the list generation unit 301A extracts the purchased content ID associated with the acquired user ID in the user purchase history DB 311. Then, the list generating unit 301A extracts information associated with the content ID extracted as the purchased content ID in the bibliographic information DB 312 to generate a content list.

  For example, when the user ID “SC0001” is acquired as the target of the content list, the list generation unit 301A acquires the content ID “ABCD1234” and the content ID “ABCD1235” associated with the user ID in the user purchase history DB 311. . Then, information corresponding to these content IDs (information associated with these content IDs shown in Table 3) is extracted from the bibliographic information DB 312, and the extracted information is used as a content list.

  That is, the content list includes the data of each item in the bibliographic information DB of Table 3 for the content associated with the user ID of the target user in the user purchase history DB of Table 2.

<Meta information file>
The list generation unit 301A generates a meta information file of the content list together with the generation of the content list. An example of the contents of the meta information file is shown in FIG.

  Referring to FIG. 6, the meta information file is configured by a manifest file compliant with, for example, HTML (HyperText Markup Language) 5.

  The meta information file shown in FIG. 6 includes information indicating the version of the content list shown below “# Version cid =” and information showing the expiration date of the content list shown below “# Valid until on”. .

  The list generation unit 301A can generate information as shown in FIG. 6 as a separate file from the content list, and can also include such information in the content list.

<Reproduction of contents>
Next, content reproduction on the terminal 100 will be described. In the present embodiment, the terminal 100 reproduces the content so that the user can browse the electronic book.

  It is assumed that terminal 100 according to the present embodiment can operate in two modes, “local mode” and “online mode”, for browsing electronic books. The terminal 100 may be configured to switch between the operation modes based on an operation on the operation unit 103, a change in the attitude of the terminal 100 main body, or the like, or may be operable in any mode There is also.

  The “local mode” is a mode for browsing content stored in the content storage unit 104A. The “online mode” is a mode for browsing content that the user of the terminal 100 has usage rights and is not stored in the content storage unit 104 </ b> A of the terminal 100.

  Note that the content that is not stored in the content storage unit 104A for the “online mode” is a content storage unit that is actually operated by the user even if it is stored in the content storage unit 104A of another terminal 100 owned by the user. The content which is not stored in 104A is also included. More specifically, when the terminal 100A is operated, even if the content is stored in the content storage unit 104A of the terminal 100B, the content is not stored in the content storage unit 104A of the terminal 100A. In the online mode operation on the terminal 100A, the content is not stored in the content storage unit 104A.

  The terminal 100 can operate online in either the local mode or the online mode. On the other hand, in offline mode, operation is possible only in the local mode.

<Bookcase screen (screen for displaying content saved on the terminal)>
FIG. 7 is a diagram illustrating an example of a bookshelf screen displayed on the display device (display unit 102) when the terminal 100 is operating in the local mode.

The bookshelf screen 500 is a screen that displays a list of contents that can be browsed.
The bookshelf screen 500 includes a display field 501 for designating a display format, a display field 502 for designating a mode, and display fields 511 to 517 for displaying a list of information such as titles of electronic books. . Each content whose information is displayed in the display columns 511 to 517 is content in which data of the main body is stored in the content storage unit 104A. In the display column 501, “Title” is selected. As a result, the contents stored in the content storage unit 104A are arranged and displayed in the display columns 511 to 517 in the order of the titles in the order of the 50 sounds.

  In addition, software buttons 521 to 525 are displayed on the bookshelf screen 500. The software button 521 is a button for displaying detailed information of each book. The software button 522 is a button that is operated to search for content constituting a series of each content. The software button 523 is a button for registering each content as a favorite. The software button 524 is a button for performing registration (secret registration) for displaying only when a user who designates each content operates. The software button 525 is a button operated for posting shared information such as impressions on a specific site on the network for each content.

  In the display column 502 of the bookshelf screen 500, “store in terminal” indicating the local mode is displayed. By visually recognizing the display contents of the display field 502, the user can recognize that the bookshelf screen 500 is a bookshelf screen in the local mode.

<Bookcase screen (screen for displaying server storage contents)>
FIG. 8 is an example of a bookshelf screen displayed on the display device (display unit 102) when the terminal 100 is operating in the online mode.

  Referring to FIG. 8, the bookshelf screen 600 includes display fields 601 and 602 corresponding to the display fields 501 and 502 in FIG. The bookshelf screen 600 includes software buttons 621 to 625 having the same functions as the software buttons 521 to 525 of FIG.

  The bookshelf screen 600 includes display fields 611 to 617. The display columns 611 to 617 indicate contents that are included in the content list received from the content list distribution server 300 and are not stored in the content storage unit 104 </ b> A of the terminal 100.

  In the display field 602 of the bookshelf screen 600, “save to server” indicating the online mode is shown. By visually recognizing the display contents of the display field 602, the user can recognize that the bookshelf screen 600 is a bookshelf screen in the online mode.

<Bookcase screen display processing>
FIG. 9 is a flowchart of processing executed by the processing unit 101 to display a bookshelf screen as described with reference to FIG. 7 or 8 on the terminal 100.

  Referring to FIG. 9, when an application for browsing an electronic book (hereinafter referred to as “electronic book application”) is activated on terminal 100, processing unit 101 returns the home of the electronic book application in step S <b> 10. The screen is displayed on the display device (display unit 102), and the process proceeds to step S20.

  In step S20, the processing unit 101 determines whether or not an operation for requesting the display of the bookshelf screen has been performed on the operation unit 103. If it is determined that such an operation has been performed, the processing proceeds to step S30.

  In step S30, the processing unit 101 accepts selection of an operation mode in the electronic book application. Then, the processing unit 101 proceeds to step S60 when the online mode is selected, and proceeds to step S40 when the local mode is selected.

  In step S40, the processing unit 101 reads content data (in-terminal content DB shown in Table 1) stored in the content storage unit 104A from the content DB 104B in the terminal 100, and proceeds to step S50. To proceed.

  In step S50, the processing unit 101 generates data for displaying a bookshelf screen as described with reference to FIG. 7, and advances the processing to step S90.

  Note that the information in the display column 501 of the bookshelf screen 500 in FIG. 7 is information set by default. The information can be changed by a user operation or the like while the electronic book application is activated.

  As information displayed in the display columns 511 to 517, information stored in the terminal content DB as shown in Table 1 is used. Specifically, information (title, author, publisher, etc.) registered for each content in the terminal content DB is extracted and displayed in each of the display columns 511 to 517.

  Returning to FIG. 9, in step S60, processing unit 101 reads the content list distributed from content list distribution server 300, and advances the process to step S70. The reading of the content list in step S60 will be described later with reference to FIG.

  In step S70, the processing unit 101 calculates a difference between the content list received from the content list distribution server 300 and the content DB data stored in the content DB 104B in the terminal 100, and proceeds to step S80. Through the processing in step S70, the content registered in the content list transmitted from the content list distribution server 300 and not stored in the content storage unit 104A of the terminal 100 is extracted.

  In step S80, the processing unit 101 generates data for displaying a bookshelf screen as described with reference to FIG. 8 for the content extracted in step S70, and advances the process to step S90.

  In step S90, the processing unit 101 causes the display device (display unit 102) to display the bookshelf screen on which the display data is generated in step S50 or step S80, and ends the process.

  As described above, according to the processing described with reference to FIG. 9, the bookshelf screen corresponding to the selected operation mode (local mode or online mode) is displayed on the display device (display unit 102).

<Reading content list transmitted from content list distribution server>
FIG. 10 is a flowchart of the processing subroutine in step S60 of FIG.

  This process is realized in cooperation with the process in the content list distribution server 300. Therefore, in FIG. 10, in addition to the flowchart of the process on the terminal 100 side, the flowchart of the process in the content list distribution server 300 is also shown.

  Referring to FIG. 10, in step SA10, processing unit 101 determines whether or not terminal 100 can be connected to content list distribution server 300 at that time. If it determines that connection is possible, processing unit 101 proceeds to step SA20. The process proceeds, and if it is determined that the server cannot be connected, the process proceeds to step SA60.

  In step SA60, processing unit 101 reads the content list that has been received from content list distribution server 300 so far and is stored in the cache memory, and returns the process to FIG.

  In step SA20, the processing unit 101 requests the content list distribution server 300 to obtain and transmit a content list meta information file. At this time, the processing unit 101 transmits information (for example, a user ID) that identifies the user to the content list distribution server 300. The user ID is stored in the user information storage unit 104C, for example. The processing unit 101 may request the user to input login information when using the terminal 100. In such a case, in step SA20, the processing unit 101 transmits the user ID input as the login information to the content list distribution server 300.

  When receiving the request for acquiring the meta information file from the terminal 100, the processing unit 301 of the content list distribution server 300, in step SB10, sets the content ID associated with the user ID transmitted from the terminal 100 in the user purchase history DB 311. Obtain (purchase history inquiry).

  When the user purchase history DB 311 is configured by a device different from the content list distribution server 300, the processing unit 301 sends an inquiry to the device together with the transmission of the user ID received from the terminal 100. Do. In response, in step SC10, the device transmits a content ID associated with the received user ID (purchase history transmission).

  In addition, the processing unit 301 acquires bibliographic information corresponding to the content ID acquired in step SB10 from the bibliographic information DB 312. When the bibliographic information DB 312 is configured by a device different from the content list distribution server 300, the processing unit 301 transmits the content ID acquired in step SB10 to the device and transmits the bibliographic information. Make an inquiry. In response to this, the apparatus transmits bibliographic information corresponding to the content ID received from the content list distribution server 300.

  The processing unit 101 generates a content list corresponding to the user ID acquired in step SB10 based on the bibliographic information acquired in step SB20, and generates a meta information file for the generated content list. Then, the process proceeds to step SB40.

  In step SB40, the processing unit 301 transmits the meta information file generated in step SB30 to the terminal 100.

  In response to this, in step SA30, the processing unit 101 of the terminal 10 determines whether or not the meta information file received from the content list distribution server 300 matches the meta information file of the content list already stored in the cache memory. If it is determined that they match, the process proceeds to step SA60, and if it does not match, the process proceeds to step SA40.

  In step SA40, the processing unit 101 requests the content list distribution server 300 to acquire a content list.

  In response to the content list acquisition request in step SA40, the processing unit 301 of the content list distribution server 300 transmits the content list generated in step SB30 to the terminal 100.

  In response to the transmission of the content list from the content list distribution server 300, the processing unit 101 of the terminal 100 reads the received content list in step SA50 and returns the process to FIG.

  As described above, according to the processing described with reference to FIG. 10, when the bookshelf screen is displayed in the online mode, it is first determined whether or not the terminal 100 can be connected to the content list distribution server 300 (step SA10). If the connection cannot be established, the content list registered in the cache memory is read (step SA60).

  On the other hand, if connection to the content list distribution server 300 is possible, the terminal 100 requests the content list distribution server 300 to acquire a content list meta information file (step SA20).

  In response to this, the content list distribution server 300 generates a content list again (step SB30), and the meta information file of the content list is transmitted to the terminal 100 (step SB40).

  The terminal 100 that has received the meta information file determines whether or not the meta information file of the content list already stored in the cache memory matches the received meta information file (step SA30). If they match, the content list already stored in the cache memory is read without receiving the content list from the content list distribution server 300 again (step SA60). On the other hand, if the meta information files do not match, the terminal 100 requests the content list distribution server to acquire the content list (step SA40).

  Then, terminal 100 reads the content list received from content list distribution server 300 (step SA50).

  In the content list distribution server 300, as shown in steps SB10 to SB30, the content list and its meta information file are generated every time a meta information file acquisition request is made from the terminal 100. The timing is not limited to that described with reference to FIG. For example, when the history information about the target user ID in the user purchase history DB 311 is updated, or when a certain time has passed since the previous content list or the like was generated, etc. As described above, when the content list and the meta information file are generated at a timing different from the reception of the meta information file acquisition request from the terminal 100, the processing unit 301 of the content list distribution server 300 performs step SA20. When the request is received, the meta information file corresponding to the target user ID already generated and stored in the storage unit 302 or the like is transmitted to the terminal 100 in step SB40. When receiving the content list acquisition request in step SA40, the processing unit 301 transmits the content list already stored in the storage unit 302 or the like to the terminal 100 as the processing in step SB50.

<Content display processing>
In the electronic book application of the terminal 100, as described with reference to FIG. 7 or FIG. 8, a bookshelf screen is displayed. Display columns 511 to 517 and 611 to 617 for selecting each content are displayed on the bookshelf screens 500 and 600, respectively.

  When any of the display columns 511 to 517 and 611 to 617 is selected on each of the bookshelf screens 500 and 600, processing for displaying the content corresponding to the display column is executed.

FIG. 11 is a flowchart of the processing executed by the processing unit 101.
Referring to FIG. 11, when an operation for selecting any of display columns 511 to 517 and 611 to 617 is performed on any of bookshelf screens 500 and 600, processing unit 101 is selected in step SA110. It is determined whether or not the content is stored in the content storage unit 104A of the terminal 100. If it is determined that the content is stored, the process proceeds to step SA150 and is not stored, that is, stored in the content distribution server 200. If determined, the process proceeds to step SA120.

  In step SA150, the processing unit 101 displays the selected content that is stored in the content storage unit 104A on the display device (display unit 102) with a viewer, and ends the process.

  On the other hand, in step SA120, processing unit 101 transmits a download request for the file of the main body of the selected content to content distribution server 200.

  In response to this, the processing unit 201 of the content distribution server 200 distributes the requested content to the terminal 100 (step SE110).

  In response to this, the processing unit 101 of the terminal 100 receives the content in step SA130, stores it in the content storage unit 104A, updates the information in the content DB 104B in accordance with the stored information, and then proceeds to step SA140. Proceed with the process. As a result, content information newly stored in the content storage unit 104A is added to the in-terminal content DB (see Table 1).

  In step SA140, the processing unit 101 causes the viewer to display the content received in step SA130 on the display device (display unit 102), and ends the process.

  FIG. 12 is a diagram illustrating an example of a state in which content is displayed on the display unit. When the content is displayed on the display device (display unit 102) by the viewer, the display unit 102 displays a content display screen such as a screen 1100.

[Second Embodiment]
In the bookshelf screen displayed on the terminal 100 of the present embodiment, the content stored in the content storage unit 104A of the terminal 100 and the user of the terminal 100 who has not been stored in the content storage unit 104A but has the right to use The content information stored in the content distribution server 200 is displayed on the same screen.

  FIG. 13 is a diagram illustrating an example of a bookshelf screen displayed on the terminal 100 according to the present embodiment.

  Referring to FIG. 13, in the bookshelf screen 700, a display field 710 for displaying a message acquired in the electronic book application, a display field 720 for displaying advertisement information, a sorting condition for displaying content information, and the like are set. In addition to a display field 730 for displaying an operation button for performing the operation, a display field 740 for displaying information on content for which the user has usage rights is included.

  The display column 740 includes display columns 741 to 749 corresponding to individual contents. In FIG. 13, content information is shown only in the display columns 741 to 745.

  In each of the display columns 741 to 745, the title of the content is displayed. In FIG. 7, a character string such as “title PA (1)” is shown as an example of the title of the content.

  Of the display columns 741 to 745, the display columns 742, 743, and 745 have a button 740 </ b> A indicating that the content is stored in the content storage unit 104 </ b> A of the terminal 100. In addition, in the button 740A, a character string (“DL finished”) indicating that the content has been downloaded to the terminal 100 is displayed.

  That is, among the contents whose contents are displayed in the display field 740 of the bookshelf screen 700 shown in FIG. 13 (contents corresponding to each of the display fields 741 to 745), the display fields 742 and 743 in which the button 740A is displayed. , 745 is stored in the terminal 100, and other contents, that is, contents corresponding to the display fields 741, 744 are not stored in the terminal 100 but are stored in the content distribution server 200. The user can visually recognize that this is being done.

  FIG. 14 is a flowchart of processing executed in the terminal 100 to display the bookshelf screen 700 as shown in FIG.

  Referring to FIG. 14, when an operation for starting the electronic book application is performed on terminal 100, processing unit 101 displays the home screen of the electronic book application on display unit 102 in step S 10, and the process proceeds to step S 20. Proceed.

  In step S20, the processing unit 101 determines whether or not a request for displaying a bookshelf screen has been made by an operation on the operation unit 103 or the like. If it is determined that such a request has been made, the processing proceeds to step S60.

  In step S60, as described with reference to FIG. 9, the processing unit 101 reads the content list stored in the content list distribution server 300, and advances the process to step S70. Also in the present embodiment, reading of the content list is realized by the processing described with reference to FIG. 10, for example.

  In step S70, the processing unit 101 reads the content DB data stored in the content DB 104B, calculates a difference from the content list acquired in step S60, and advances the process to step S81.

  In step S81, the processing unit 101 does not store the content stored in the content storage unit 104A of the terminal 100, such as the bookshelf screen 700 described with reference to FIG. 13, or the content storage unit 104A. Data for displaying the bookshelf screen including the content information stored in the content distribution server 200 is generated, and the process proceeds to step S90.

  In the display data, as described with reference to FIG. 13, the content information for which the user has usage rights is distinguished from those stored in the content storage unit 104 </ b> A (FIG. 13). Button 740A etc.).

  In step S90, the processing unit 101 displays a bookshelf screen on the display device (display unit 102) based on the display data generated in step S81, and ends the process.

  According to the terminal 100 of the present embodiment described above, the user who has visually recognized the bookshelf screen 700 can view all the content that he / she has the right to use on one screen, and which content is among them. It is possible to visually recognize which content is stored in the terminal 100 being operated and which content is not stored in the terminal 100.

  Also in this embodiment, when an operation is performed on any of the display columns (display columns 741 to 745 in FIG. 13) corresponding to each content, each content is displayed on the viewer, A download request is made to the distribution server 200.

  Specifically, for example, when an operation is performed on the display field 742, the content corresponding to the display field is read from the content storage unit 104A and displayed on the viewer.

  On the other hand, when an operation is performed on the display field 741, the processing unit 101 makes a download request to the content distribution server 200 for the content corresponding to the display field. Note that, before making a download request to the content distribution server 200, the processing unit 101 may inquire the user of the necessity of download.

At the time of the inquiry, the processing unit 101 displays a screen as shown in FIG. 15, for example.
In the bookshelf screen 750 of FIG. 15, the bookshelf screen 700 is grayed out as a whole, and a window 751 is displayed thereon. The window 751 is a screen for inquiring whether or not it is necessary to download the content corresponding to the operated display field 741 (content having “title PA (1)” as a title). The window 751 includes an OK button and a cancel button. If the OK button is operated, the processing unit 101 requests the content distribution server 200 to download the content. On the other hand, if the cancel button is operated, the processing unit 101 returns the control to a state in which the bookshelf screen 700 as shown in FIG. 13 is displayed on the display device (display unit 102) without making the request.

[Third Embodiment]
The terminal 100 according to the present embodiment can upload content acquired by a method other than downloading from the content distribution server 200 on the content distribution server 200.

  FIG. 16 is a diagram illustrating an example of a bookshelf screen displayed on the terminal 100 according to the present embodiment.

  Referring to FIG. 16, in the bookshelf screen 701, information corresponding to the content is further displayed in the display column 746 in the display column 740 compared to the bookshelf screen 700 in FIG. 13.

  The content whose information is displayed in the display field 746 (the content of the title “title PF (1)”) is produced in the terminal 100 (which is the operation target) or created in an information processing apparatus other than the terminal 100. Content that has been transferred to the terminal 100 without being stored in the content distribution server 200 (so-called self-catering content).

  For such content, information is not registered in the content list distributed from the content list distribution server 300.

  In the terminal 100 of the present embodiment, such content is displayed on the bookshelf screen as the display field 746 of the bookshelf screen, and the content is stored in the content distribution server 200 and sent to the content distribution server 200. A button 740B for prompting the upload of is displayed.

  Then, when the button 740 </ b> B is operated, the terminal 100 uploads the corresponding content to the content distribution server 200.

  FIG. 17 is a flowchart of processing for displaying a bookshelf screen as shown in the bookshelf screen 701 in FIG.

  Referring to FIG. 17, in the present embodiment, the content stored in the content list read in step S60 and the content DB 104B in the same manner as in the process in terminal 100 of the second embodiment with reference to FIG. When the difference between the content and the content stored in the content is calculated, the content stored in both the content distribution server 200 and the content storage unit 104A and the content storage server 104A are stored in the content distribution server 200. There are three types of content: content that is not stored and content that is not stored in the content distribution server 200 but is stored in the content storage unit 104A.

  In this embodiment, display data of the bookshelf screen for displaying information on these three types of contents is generated in step S82.

  And the display based on the display data produced | generated by step S82 is made by step S90.

  As a result, a bookshelf screen such as the bookshelf screen 701 in FIG. 16 is displayed on the display device (display unit 102).

  FIG. 18 is a flowchart of processing executed when the button 740B is operated on the bookshelf screen 701.

  Referring to FIG. 18, when the upload of content is supported by operating button 740 </ b> B, processing unit 101 receives the content subject to the operation from content list distribution server 300 in step SA <b> 210. If the content list is determined to exist, the process proceeds to step SA250.

  Note that the determination in step SA210 is that the processing unit 101 may request the content list from the content list distribution server 300 at that time, or refer to the content list stored in the cache memory at that time. May be realized.

  In step SA250, the processing unit 101 causes the content to be operated to be displayed on the display device (display unit 102) by a viewer, and ends the processing.

  On the other hand, if it is determined in step SA210 that the content subject to the operation of button 740B does not exist in the content list, processing unit 101 advances the process to step SA220.

  In step SA220, the processing unit 101 requests the content distribution server 200 to upload the content. In response to this, the processing unit 201 of the content distribution server 200 stores the content in the storage unit 202 and adds the information of the content stored as described above in the user purchase history DB 311 in step SB210. Then, the purchase history DB 311 is requested to update the data.

  In response to this, the user purchase history DB 311 updates the database so as to add information on the uploaded content to the purchase history for the user who requested the upload, and when the update is completed, the content distribution server notifies that fact. 200 is notified.

  In step SB220, the processing unit 201 of the content distribution server 200 requests the bibliographic information DB 312 to update the database so as to add the bibliographic information of the content newly stored by uploading.

  In response to this, in the bibliographic information DB 312, the database is updated (step SD210), and upon completion, the content distribution server 200 is notified of this fact.

  When the processing unit 201 of the content distribution server 200 receives the completion notification from the user purchase history DB 311 and the completion notification from the bibliographic information DB 312, the upload requested in step SA 220 is completed for the terminal 100 in step SB 230. Notify that.

  In response to this, the processing unit 101 of the terminal 100 receives the end notification from the content distribution server 200 in step SA230, and advances the process to step SA240.

  In step SA240, the processing unit 101 causes the viewer to display the content requested to be uploaded in step SA220 on the display device (display unit 102), and ends the process.

[Other variations]
In the present embodiment described above, the terminal 100 can be realized by various devices as long as it is an information processing apparatus having a content reproduction function.

  For example, the terminal 100 may be realized by a tablet terminal as shown in FIG.

  In the tablet terminal (terminal 100) shown in FIG. 19, an operation button 103A is provided in the casing together with the display unit 102. In the terminal 100 shown in FIG. 19, a touch sensor is provided so as to overlap with the display unit 102, and the operation unit 103 includes the touch sensor and / or the operation button 103A.

  Further, as illustrated in FIG. 20, the terminal 100 may be realized by a smartphone terminal, that is, a terminal having a call function.

  In the smart phone terminal (terminal 100) shown in FIG. 20, operation buttons 103B to 103D are provided in the casing together with the display unit 102. In the terminal 100 illustrated in FIG. 20, a touch sensor is provided so as to overlap with the display unit 102, and the operation unit 103 includes the touch sensor and / or operation buttons 103 </ b> B to 103 </ b> D.

  Further, as shown in FIG. 21, the terminal 100 may be realized by a personal computer installed in an office or the like instead of a portable terminal.

  A monitor 102A, a keyboard 103E, and a mouse 103F are connected to a terminal 100 realized by a personal computer. In this case, the display unit 102 controls display on the monitor 102A. That is, it is realized by the driver software or the driver circuit board of the monitor 102A. In this example, the operation unit 103 is configured by the keyboard 103E and / or the mouse 103F.

  As shown in FIG. 22, terminal 100 includes a monitor and a remote controller (hereinafter referred to as a “remote controller”), which is realized by a television receiver. In such an example, the operation unit 103 is configured by a remote controller, and the display unit 102 is configured by a monitor.

  In each of the embodiments described above, the user purchase history DB is a database in which information on content for which the user has usage rights should be stored. In the present specification, it has been explained that information on content purchased by the user is stored in the user purchase history DB. However, the description is not limited to content information on which the user has actively performed purchases or the like. The so-called free content information may also be stored in the user purchase history DB. As a result, the content list may include such free content information.

  Further, in step SA30 of FIG. 10 described above, the processing unit 101 determines that the content list in step SA40 if the meta information file stored in the cache memory does not match the meta information file received from the content list distribution server 300. The distribution server 300 is requested to transmit a content list. Note that, as described with reference to FIG. 6, the meta information file may include the expiration date of the meta information file. Then, in step SA30, the processing unit 101 requests transmission of the content list in step SA40 if the expiration date has expired in the meta information file received from the content list distribution server 300, and in step SA60 if the expiration date has not expired. The content list may be read from the cache memory. Thereby, it is possible to avoid the content list being transmitted from the content list distribution server 300 to the terminal 100 in vain.

  Each embodiment disclosed this time must be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims. Moreover, it is intended that each embodiment and its modification are implemented in combination as much as possible.

  100, 100A, 100B, 100C terminal, 101, 201, 301 processing unit, 101A content playback unit, 101B list display unit, 101C content acquisition unit, 101D content list acquisition unit, 102 display unit, 106 flash memory, 200, 200A, 200B content distribution server, 300 content list distribution server.

Claims (12)

A terminal device comprising a playback means for playing back content,
Operation means for accepting input of operation information;
Content storage means for storing content;
Communication means for obtaining a list of contents that the user of the terminal device has usage rights from a server device;
List storage means for storing the list;
Display control means for displaying information on each content included in the list on a display device in accordance with a specific operation on the operation means,
The display control means displays information on each content included in the list on the display device in a mode according to a storage location of each content ,
The communication means acquires the list from an apparatus for storing the list when an operation for requesting display of the list is performed in the operation means,
The display control means stores the list in the list storage means when the operation means requests the display of the list and the communication means cannot acquire the list from the device storing the list. A terminal device for displaying the list .   The terminal device according to claim 1, wherein the display control unit determines a display mode of information of each content included in the list according to whether or not each content is stored in the content storage unit. The list storage means stores the list together with information indicating an expiration date of the list,
When the operation means requests the display of the list, the communication means, on the condition that the expiration date of the information indicating the expiration date stored in the list storage means has expired Retrieve the list from the device,
The display control means, when an operation for requesting display of the list is performed in the operation means,
When the expiration date of the information indicating the expiration date stored in the list storage means has expired, the communication means displays the list acquired from the device,
3. The terminal according to claim 1 , wherein the list stored in the list storage unit is displayed when the expiration date of the information indicating the expiration date stored in the list storage unit has not expired. apparatus. The list storage means stores the list together with meta information of the list,
The communication means includes
When an operation for requesting display of the list is performed in the operation means, meta information of the list is acquired from a device that stores the list,
If the acquired meta information of the list does not match the meta information of the list stored in the list storage means, the list is acquired from the device,
The display control means, when an operation for requesting display of the list is performed in the operation means,
When the meta information of the list acquired by the communication means does not match the meta information of the list stored in the list storage means, the communication means displays the list acquired from the device,
When said meta information of the list by the communication means has acquired matches the meta information of the list stored in the list storage unit displays the list stored in said list storing means, according to claim 1 or The terminal device according to claim 2 . The communication means communicates with an apparatus for storing the list when an operation for requesting display of the list is performed in the operation means;
The display control means, when an operation for requesting display of the list is performed in the operation means,
If the communication means can communicate with the device, the communication means displays the list acquired from the device,
The terminal device according to claim 1 , wherein when the communication unit cannot communicate with the device, the list stored in the list storage unit is displayed. When an operation is performed on the content whose information is displayed in the list with respect to the operation means,
The reproducing means reproduces the content when the content subject to the operation by the operating means is stored in the content storing means,
The communication unit obtains the content from a device storing the content and stores the content in the content storage unit when the content subject to the operation by the operation unit is not stored in the content storage unit. The terminal device according to any one of claims 1 to 5 , wherein: A terminal device comprising a playback means for playing back content,
Operation means for accepting input of operation information;
Content storage means for storing content;
Communication means for obtaining a list of contents that the user of the terminal device has usage rights from a server device;
List storage means for storing the list;
Display control means for displaying information on each content included in the list on a display device in accordance with a specific operation on the operation means,
The display control means includes
Information on each content included in the list is displayed on the display device in a manner corresponding to the storage location of each content,
In the content storage unit, when content that does not include information is stored in the list acquired by the communication unit, the list is updated so as to add content information that does not include the information. Te is stored in said list storing means, the end terminal device. When the content storage means stores content that does not include information in the list acquired by the communication means, the display control means displays information on the content that does not include the information in the list. The terminal device according to claim 7 , displayed together with information for instructing upload of the content. Content storage means for storing the content, reproduction means for reproducing the content, and is executed in the terminal device comprising a list storage means for storing a list of content, a control method of the terminal device ,
A step of accepting input of operation information;
Obtaining a list of contents that the user of the terminal device has usage rights from a server device;
Storing the list in the list storage means;
Displaying information of each content included in the list on a display device,
In the step of displaying the list, information on each content included in the list is displayed on the display device in a mode corresponding to a storage location of each content ,
The obtaining step includes obtaining the list from a device that stores the list when receiving an input of operation information for requesting display of the list in the step of receiving the input,
The step of displaying the list is when the input of operation information requesting the display of the list is accepted, and when the list cannot be obtained from the device storing the list in the obtaining step, the list storage means A method of controlling a terminal device , comprising: displaying the list stored in the display device on the display device . A content storage means for storing content, and a control program executed in a computer of a terminal device provided with a playback means for playing back content,
The control program is stored in the computer.
A step of accepting input of operation information;
Obtaining a list of contents that the user of the terminal device has usage rights from a server device;
Causing the display device to display information on each content included in the list,
In the step of displaying the list, information on each content included in the list is displayed on the display device in a mode corresponding to a storage location of each content ,
The obtaining step includes obtaining the list from a device that stores the list when receiving an input of operation information for requesting display of the list in the step of receiving the input,
The step of displaying the list is when the input of operation information requesting the display of the list is accepted, and when the list cannot be obtained from the device storing the list in the obtaining step, the list storage means A control program for a terminal device , comprising: displaying the list stored in the display device on the display device . A control method for a terminal device, which is executed in a terminal device comprising content storage means for storing content, playback means for playing back content, and list storage means for storing a list of content. ,
A step of accepting input of operation information;
Obtaining a list of contents that the user of the terminal device has usage rights from a server device;
Storing the list in the list storage means;
Displaying information of each content included in the list on a display device,
The step of displaying the list includes:
Information on each content included in the list is displayed on the display device in a manner corresponding to the storage location of each content,
If the content storage means includes information that is not included in the list acquired in the acquiring step, including updating the acquired list to include information that is not included in the list; A control method of a terminal device. A content storage means for storing content, and a control program executed in a computer of a terminal device provided with a playback means for playing back content,
The control program is stored in the computer.
A step of accepting input of operation information;
Obtaining a list of contents that the user of the terminal device has usage rights from a server device;
Causing the display device to display information on each content included in the list,
The step of displaying the list includes:
Information on each content included in the list is displayed on the display device in a manner corresponding to the storage location of each content,
If the content storage means includes information that is not included in the list acquired in the acquiring step, including updating the acquired list to include information that is not included in the list; Terminal device control program.

Images