JP5713620B2 - Display control system, display device, display control method, and program - Google Patents

Description

  The present invention relates to a technology for sharing a GUI between both devices by publishing and executing a script describing a GUI of a content server on a predetermined display device.

  There is RUI (Remote User Interface) technology that can share not only content but also GUI (Graphical User Interface) between devices connected via a home IP (Internet Protocol) network. This RUI technology is an extension of the Digital Living Network Alliance (DLNA) (registered trademark), and draws and controls the GUI using a script language.

  In the RUI technology, there are a device (hereinafter referred to as “content server”) that provides content (recorded program and the like) and GUI, and a device that performs GUI display and content reproduction (hereinafter referred to as “display device”).

  In the RUI technology, device control and GUI sharing can be performed by an RUI script. The RUI script can describe arrangement of 2D / 3D GUI parts, animation processing, content remote viewing processing of the content server, and the like. The content server can not only describe its own GUI with an RUI script, but also share the GUI between both devices by publishing and executing the same script on a display device.

  Details of the RUI technology will be described by taking GUI sharing of a recording list (screen for displaying a list of recorded video contents) as an example. The recording list of the content server is described by the above RUI script. The content server has a function of providing this “recording list RUI script” (hereinafter referred to as “recording list script”) to other devices connected via the network. The display device provides and implements the same GUI as the recording list of the content server by downloading and executing the recording list script from the content server.

  As a related technology, when acquiring content over a network, the list information of the content that cannot be transmitted because the resource is used when the content list is requested is set to transmission disabled, and the receiving device side is useless. Processing is not performed, content information that cannot be accessed at the time the content list is acquired is restricted from being registered in the content list, and the load of the list generation processing is reduced. A technology is disclosed in which a content list of content that can be used at that time is distributed by using a change in usage status as a trigger so that a content receiving device can always refer to content that can be acquired (see, for example, Patent Document 1).

JP 2008-118410 A

  However, in the related technology described above, when a plurality of content servers are inherently present on the network, the display device as a network player collects the content lists of all the content servers and displays them as a recording list. Cannot handle.

  Even when the RUI technology is used, if there are a plurality of content servers on the network, the GUI of the only content server that provides the RUI can be shared by the display device. Originally, the content information of the content server had to use the GUI of the display device.

An object of the present invention, when a plurality of content servers on the network is present, the GUI of a single content server, one of the recording list summarizes the content information of the plurality of content servers, the display on the display device Is to make it possible .

One aspect of the present invention that achieves the above object is a display control system that includes a content server group each having content, a first content server having content, and a display device connected via a network. Then, the first content server provides the display device with first content list information that is information on a list of content that the server has, and a first description that describes the first content list information And a second script that defines a display screen display process. The content server group has a function of providing the first script to the display device. A function of providing second content list information, which is list information, to the display device; The first description part is extracted from the first script based on the first content list information provided from the content server, and the first content list information is extracted based on the extracted first description part. Is generated with the first content list information and the second content list information group, and a third description portion is generated. The generated third description portion and the second description portion Based on this, a second script is generated, and display processing of the display screen is executed in accordance with the rules of the second script .

According to the present invention, when a plurality of content servers on the network is present, the GUI of a single content server, one of the recording list summarizes the content information of the plurality of content servers, the display on the display device It becomes possible .

It is a figure which shows the system configuration | structure which concerns on embodiment of this invention. It is a functional block diagram of the apparatus which concerns on embodiment of this invention. It is a flowchart of the processing operation which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The GUI control system in the present embodiment shown in FIG. 1 is configured by connecting a content server 11, a content server 12, and a display device 20 via a predetermined network.

  The content server 11 has a RUI source function of RUI technology, and is a device that provides the display device 20 with a GUI such as a content (recorded program or the like) and a recording list (screen for displaying a list of recorded video content). Controlled by a CPU (Central Processing Unite), etc., equipped with a display mechanism such as a ROM (Read Only Memory), a RAM (Random Access Memory), an HDD (Hard Disk Drive), a liquid crystal display, a mouse, etc., and a known input / output An information processing apparatus having a mechanism and a communication function. Here, a detailed description of known configurations / techniques is omitted (hereinafter the same).

  The content server 12 is a device that does not have a RUI technology RUI source function and provides content (recorded programs, etc.) and a content list to the display device 20, and is controlled by a CPU (Central Processing Unite) or the like. The information processing apparatus includes a display mechanism such as a read only memory (ROM), a random access memory (RAM), a hard disk drive (HDD), and a liquid crystal display, a mouse, and the like, and further includes a known input / output mechanism and communication function. Here, a detailed description of known configurations / techniques is omitted (hereinafter the same). Although only one device is shown in FIG. 1, a plurality of system configurations may be used.

  The display device 20 has a RUI sink function of RUI technology, and is a device that performs GUI display and content reproduction, and is controlled by a CPU (Central Processing Unite) or the like, and is a ROM (Read Only Memory), a RAM (Random Access). The information processing apparatus includes a display mechanism such as a memory (HDD), a hard disk drive (HDD), a liquid crystal display, and a mouse, and further includes a known input / output mechanism and communication function. Here, a detailed description of known configurations / techniques is omitted (hereinafter the same).

  FIG. 2 shows a functional block diagram of the content server 11, the content server 12, and the display device 20 in the present embodiment.

  The content server 11 includes a device search response unit 11-1, an RUI providing unit 11-2, a content list providing unit 11-3, a distribution unit 11-4, and a storage unit 11-5.

  The content server 12 includes a device search response unit 12-1, a content list providing unit 12-2, a distribution unit 12-3, and a storage unit 12-4.

  The display device 20 includes a device detection unit 21, an RUI acquisition / loading unit 22, a content list acquisition unit 23, an editing unit 24, and a playback unit 25.

Next, the processing operation in the present embodiment will be described in detail with reference to the flowchart of FIG.
Referring to FIG. 3, first, the device detection unit 21 of the display device 20 searches for a device on the network (S301).

The device search response unit 11-1 of the content server 11 responds as an RUI device (S302) and responds as a server device (S303).
On the other hand, the device search response unit 12-1 of the content server 12 responds as a server device (S304).

  The device detection unit 21 of the display device 20 detects the content server 11 as an RUI device on the network (S305), and detects the content server 11 and the content server 12 as server devices on the network (S306).

As a device discovery method, SSDP (Simple Service Discovery Protocol) defined by UPnP (Universal Plug and Play) (registered trademark) or the like may be used. SSDP defines a procedure for discovering UPnP devices on the network in real time, and the content server transmits a presence notification packet to the display device when it receives a search packet or when it is connected to the network. Thereby, the display device can search and detect the content server.
As a device information acquisition method, DDD (Device Description document) or the like may be used. The DDD describes device detailed information such as a device name and capability type, and can be acquired from a URL (Universal Resource Locator) described in the SSDP presence notification packet. In the RUI technology, the presence or absence of the capability of the RUI technology and the URL that is the location information of the RUI script described later are additionally written.

  Next, the RUI acquisition / loading unit 22 of the display device 20 requests RUI data from the content server 11 as an RUI device (S307).

The RUI providing unit 11-2 of the content server 11 sends the RUI data stored in the storage unit 11-5 to the display device 20 (S308), and the RUI acquisition / loading unit 22 of the display device 20 receives the RUI data. Obtain (S309). The GUI image is sent in, for example, the CE-HTML format, and naturally, the description of the content list 1 part is included therein.
In the RUI technology, device control and GUI sharing are possible using an RUI script. The RUI script can describe arrangement of 2D / 3D GUI parts, animation processing, content remote viewing processing of the content server, and the like. The content server can not only describe its own GUI with an RUI script, but also share the GUI between both devices by publishing and executing the same script on a display device.

Here, GUI sharing of a recording list (a screen for displaying a list of recorded video contents) will be described as an example. The recording list of the content server is described by the above RUI script. The content server has a function of providing this “recording list RUI script” (hereinafter referred to as “recording list script”) to other devices connected via the network. The display device provides and implements the same GUI as the recording list of the content server by downloading and executing the recording list script from the content server.
The RUI script engine that interprets and executes the recording list script and the recording list script includes a plurality of modules. The recording list application performs processing such as acquisition of content information via the device control library. When operating on the content server, the device control library implements this processing by controlling the functions of the content server itself. ing. On the other hand, when operating on a display device, the content server control library communicates with the content server via an HTTP client or the like (the recording list script executed by the display device controls the content server by communication using HTTP or the like. To achieve).

  Next, the content list acquisition unit 23 of the display device 20 requests content list data from the content server 11 and the content server 12 as server devices (S310).

  The content list providing unit 11-3 of the content server 11 sends the content list data 1 stored in the storage unit 11-5 to the display device 20 (S311), and the content list providing unit 12- of the content server 12 2 sends the content list data 2 stored in the storage unit 12-4 to the display device 20 (S312), and the content list acquisition unit 23 of the display device 20 acquires the content list data 1 and the content list data 2 (S313). The content list data 1 and content list data 2 are sent in XML format, for example.

  The order of acquisition of the RUI data and the content list data is not limited to the above, and parallel / serial processing or the like may be performed.

Then, the editing unit 24 of the display device 20 extracts the description portion (recording list script) of the content list 1 of the RUI data (CE-HTML format) by comparing with the content list data 1 (XML format) (S314). ).
The editing unit 24 of the display device 20 converts the acquired content list data 1 (XML format) / content list data 2 (XML format) into a content list data 1 + content list data 2 content list data CE-HTML format script. Is replaced with the description part (recording list script) of the content list 1 of the extracted RUI data (CE-HTML format) (S315).

  Then, the RUI acquisition / load unit 22 of the display device 20 loads the replaced recording list script (CE-HTML format) (S316). A GUI in which the content list data 1 and the content list data 2 are combined is displayed. That is, the content list screen portion is left as it is, and the GUI in which only the content becomes content list data 1 + content list data 2 is displayed. Note that the content list may be arranged in various ways by applying existing techniques, and a search function or the like may be added.

Further, regarding the reproduction of the content in the content list, the display device acquires the format information and location information (URL) of the content held by the content server via the RUI script, and the content to be reproduced is HTTP (Hypertext Transfer Protocol) or the like from the URL. Streaming playback is possible by acquiring using. The recording list script executes acquisition of content information from the content server using a CGI (Common Gateway Interface) provided by the content server. In that case, Comet or the like may be used.
Therefore, the playback screen by the playback unit 25 of the display device 20 can also be realized by acquiring both the RUI data and the content source data in the same flow as in FIG. 3, and replacing the description part of the URL of the content of the RUI data. It is.

  In the above embodiment, the content server 12 does not have the RUI technology RUI source function. However, if the content server 12 also has the RUI technology RUI source function, the content server 12 displays Processing for selecting which of the content server 11 and the content server 12 is the RUI device is added by setting according to the user operation of the apparatus 20. As a result, when the content server 12 is selected as the RUI device, a GUI different from the content server 11 may be shared.

  In the above embodiment, a CE-HTML format script of one content list data of content list data 1 + content list data 2 is generated in step S315, and the content of the extracted RUI data (CE-HTML format). The description part of the list 1 (recording list script) has been replaced, but the description part of the content list 1 of the extracted RUI data (CE-HTML format) is used to make the CE-HTML format script of only the content list data 2 May be added to the description part of the content list 1 of the extracted RUI data (CE-HTML format) to realize the contents of the content list data 1 + content list data 2.

  Each of the above-described embodiments is a preferred embodiment of the present invention, and various modifications can be made without departing from the scope of the present invention. For example, you may perform the process which implement | achieves the function of an apparatus by making the apparatus read the program for implement | achieving the function of the content server 11, the content server 12, and the display apparatus 20, and executing it. Further, the program is transmitted to another computer system by a transmission wave via a computer-readable recording medium such as a CD-ROM or a magneto-optical disk, or via a transmission medium such as the Internet or a telephone line. Also good.

11 content server 12 content server 20 display device

Claims (6)

  Connected via network,
    A content server group each having content;
    A first content server having content;
    A display control system including a display device,
  The first content server is
    First content list information, which is content list information of the server itself, is provided to the display device, and a first description part that describes the first content list information and a display screen display process are defined. And a second script that includes a function for providing the display device with a first script including:
  The content server group includes:
    Each has a function of providing the display device with second content list information, which is information on a list of contents that the server has,
  The display device
    Extracting the first description part from the first script based on the first content list information provided from the first content server;
    Based on the extracted first description portion, a third description portion that describes content list information in which the first content list information is replaced with the first content list information and the second content list information group is provided. Generate
    Based on the generated third description part and the second description part, a second script is generated,
    The display screen display process is executed in accordance with the rules of the second script.
  A display control system characterized by that.   The display device
    When playing any content,
    The description part of the URL of the arbitrary content in the third description part is
    In the playback screen based on the source data of the arbitrary content acquired from the URL,
    Generate the replaced third script,
    Execute display screen display processing according to the rules of the third script
  The display control system according to claim 1, wherein:   The first content list information and the second content list information are described in XML,
  The first script includes a rule that allows generation of a display screen.
  The display control system according to claim 1 or 2, characterized by the above.   Over the network
    A content server group having a function of providing the second content list information, each of which has content, and the second content list information, which is the content list information of the server,
    A first description section having content and providing the first content list information, which is information of a list of contents owned by the own server, to another device, and a display screen; A first content server having a function of providing a first script including a second description section defining the display processing of the second script to another device;
  A display device connected to
    Extracting the first description part from the first script based on the first content list information provided from the first content server;
    Based on the extracted first description portion, a third description portion that describes content list information in which the first content list information is replaced with the first content list information and the second content list information group is provided. Generate
    Based on the generated third description part and the second description part, a second script is generated,
  The display screen display process is executed in accordance with the rules of the second script.
  A display device characterized by that.   Over the network
    A content server group having a function of providing the second content list information, each of which has content, and the second content list information, which is the content list information of the server,
    A first description section having content and providing the first content list information, which is information of a list of contents owned by the own server, to another device, and a display screen; A first content server having a function of providing a first script including a second description section defining the display processing of the second script to another device;
  A display control method executed by a display device connected to
    Extracting the first description part from the first script based on the first content list information provided from the first content server;
    Based on the extracted first description portion, a third description portion that describes content list information in which the first content list information is replaced with the first content list information and the second content list information group is provided. Generating step;
    Generating a second script based on the generated third description part and the second description part;
  Executing a display screen display process in accordance with the rules of the second script;
  A display control method comprising:   Over the network
    A content server group having a function of providing the second content list information, each of which has content, and the second content list information, which is the content list information of the server,
    A first description section having content and providing the first content list information, which is information of a list of contents owned by the own server, to another device, and a display screen; A first content server having a function of providing a first script including a second description section defining the display processing of the second script to another device;
  On a computer connected to
    A process of extracting the first description part from the first script based on the first content list information provided from the first content server;
    Based on the extracted first description portion, a third description portion that describes content list information in which the first content list information is replaced with the first content list information and the second content list information group is provided. Process to generate,
    A process of generating a second script based on the generated third description part and the second description part;
  A process for executing a display screen display process in accordance with the second script;
  A display control program characterized in that

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