JP2009098830A - Guide information providing system and video playback device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a "guide information provision system and video playback device" for properly introducing an operation method even when an operation method is different for every video disk. <P>SOLUTION: When the playback of an HD DVD 2 is started, a navigation manager 13 of a video playback device 1 issues a guide information request for designating the classification of the HD DVD 2 as the object of playback through a WAN 5 to a guide data server 61 of a guide information center system 6, and guide information in which the classification of the HD DVD 2 designated by the guide information database 62 is registered is acquired, and stored in a memory 16. Then, a guide picture in which the identification of each key operation registered in the guide information and an explanation sentence registered in the guide information with respect to the key operation are arranged is displayed on a display device 18 based on the stored guide information. The explanation sentence is configured to explain the operation of the video playback device 1 to be operated by a key operation. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a technology for guiding a user of an operation method of a video playback device to a user in a video playback device that plays back a video disc on which video content is recorded.

As a technique for guiding an operation method to a user, in a video recording apparatus provided with a TV tuner, each key provided in the video recording apparatus, which is stored in advance in the video recording apparatus in response to a user's guide request, A technique for displaying a guidance image that guides the correspondence with the operation of the video recording apparatus when the key is operated is known (for example, Patent Document 1).
JP 2005-295436 A

  When recording video content on a video disc according to the HD DVD-Video standard or BDMV standard, the video content producer can set the video playback device key to receive instructions for various video content playback operations from the user. can do. Accordingly, the key operation to be performed by the user in order to cause the video playback apparatus to perform the same playback operation may vary depending on the type of the video disc.

  For this reason, when playing back these video discs, it is relatively difficult for the user to intuitively grasp the operation to be performed in order to cause the video playback device to perform a desired operation. Further, the operation method cannot be guided to the user based on the correspondence between each key stored in advance and the operation of the video recording apparatus when the key is operated as in the technique of Patent Document 1.

  Therefore, an object of the present invention is to provide a video playback apparatus that can appropriately guide the operation method to the user even when the operation method differs for each video disc.

  In order to achieve the above object, the present invention provides the guide information comprising: a video playback device for playing back a video disc on which video content is recorded; and a guide information server to which the video playback device can be connected via a wide area network. Providing a provision system. Here, the video disc records a definition of an operation to be performed by the video playback device in response to a user operation during playback of the video disc, and the guide information server stores the type of video disc for each type of video disc. Specified in response to a database in which guide information for guiding key operations of the video playback device when playing a video disc is registered, and a guide information request accompanied by specification of the video disc type from the video playback device A guide information providing unit that reads out and provides guide information of the type of the video disc from the database. Then, the video playback device receives the guide information provided from the guide information server by transmitting a guide information request accompanied with designation of the type of the video disk to be played back and the memory to the guide information server. A guide information acquisition unit stored in a memory and a guide screen display unit that displays a guide screen for guiding key operations of the video playback device based on the guide information stored in the memory.

  According to such a guide information providing system, guide information for guiding user operations for each type of video disc is collected and accumulated in the guide information server in advance, and when the video disc is played back by the video playback device, Since the guide information of the type is acquired from the guide information server and the user operation of the video playback device is guided based on the acquired guide information, it is played back to the user regardless of the video disc type. Appropriate operation guidance matched to the video disc can be performed.

  Here, in such a guide information providing system, the guide information includes a screen image displayed by the video playback device when a key operation of each key is generated as a reference image, and the guide screen display unit of the video playback device The guide screen including the reference image may be displayed based on the guide information stored in the memory. By including the reference image in the guide screen in this way, the operation method can be guided to the user in a form that can be easily grasped visually.

  Further, in this case, the video playback device is accompanied by an image of a screen displayed by the video playback device when a key operation occurs, and identification information of the type of the video disc to be played back and the generated key operation. A reference image registration unit that transmits a reference image registration request to the guide information server is provided, and an image accompanying the reference image registration request is received in the guide information server in response to the reference image registration request received from the video reproduction device. A reference image registration unit for registering as a key operation reference image indicated by the identification information in the guide information of the video disc type indicated by the identification information accompanying the reference image registration request registered in the database. It is preferable for facilitating the collection of the reference image in the database.

  As described above, according to the present invention, it is possible to provide a video playback apparatus capable of appropriately guiding the operation method to the user even when the operation method is different for each video disc.

Hereinafter, the video playback device according to the embodiment of the present invention will be described taking application to a video playback device that plays back an HD DVD on which video content according to the HD DVD-Video standard is recorded.
FIG. 1 shows the configuration of a video playback apparatus according to this embodiment.
As shown in the figure, the video playback apparatus 1 includes a data access manager 11, a data cache 12, a navigation manager 13, a presentation engine 14, an AV renderer 15, a memory 16, an input device 17 such as a remote controller, a display device 18, and a speaker 19. And.
Such a video playback apparatus 1 may be a computer having a general configuration including a microprocessor, a memory, and other peripheral devices in terms of hardware. In this case, as described above Each unit of the video playback device 1 except the input device 17, the display device 18, and the speaker 19 may be realized as a process realized by a microprocessor executing a program prepared in advance. In this case, such a program may be provided to the computer via a recording medium or an appropriate communication path.

  Now, in such a configuration of the video playback device 1, the navigation manager 13 is based on the playlist read from the HD DVD 2 via the data access manager 11 or the data cache 12, and the primary video set, secondary video set, application, Controls playback of advanced subtitles. The presentation engine 14 controls the video and audio of the primary video set, the secondary video set, the application, and the advanced subtitle from the data acquired from the HD DVD 2, the persistent storage 3, and the network server 4 on the WAN 5 under the control of the navigation manager 13. Decode. The AV renderer 15 draws and synthesizes each video decoded by the presentation engine 14 to generate a playback image, and outputs the playback image to the display device 18 as an output image for display. In addition, the AV renderer 15 synthesizes each sound decoded by the presentation engine 14 as a reproduction sound and outputs it as output sound to the speaker 19.

Here, the primary video set and the secondary video set are video objects, and the advanced subtitle is a caption object.
On the other hand, an application includes a manifest, a markup, and a script, and the manifest represents initialization information of the application.
Markup defines the output video / audio of an application built using buttons, images, audio, animation, fonts, etc., and uses this markup to define an interactive user interface be able to.
The script is a program that controls various playback operations of each application and the video playback device 1. The script performs predetermined processing in response to the occurrence of a UI event that indicates the occurrence of a key operation of the input device 17. A UI event handler script to be executed, a script activated by a selection operation of a display object such as a button on the output video of the application according to the definition of the markup, and the like can be included.

Further, the navigation manager 13 can access the guide information center system 6 shared by the video playback devices 1 existing on the WAN 5 via the data access manager 11.
As shown in the figure, the guide information center system 6 includes a guide data server 61 and a guide information database 62 that stores DVD guide records.
FIG. 2 shows DVD guide records stored in the guide information database 62.
As shown in the drawing, the guide information database 62 stores DVD guide records that are commercially available or are provided corresponding to the types of HD DVDs that are commercially available. Each DVD guide record includes: The identifier of the corresponding HD DVD2 type and guide information are registered. Here, as the identifier of the type of HD DVD 2 registered in the DVD guide record, information unique to the type of HD DVD 2 such as the ID of the producer or content recorded on each type of HD DVD 2 is used. .

  In the guide information, an entry corresponding to each key of the input device 17 of the video playback device 1 that can be used for operation of the video playback device 1 during playback of that type of HD DVD (guide in the figure). Each row of information is provided, and each entry is executed by a key operation of the corresponding key and an explanation of the operation of the video playback device 1 to be executed by the key operation of the corresponding key. A reference image that is an image of a display screen such as a menu screen that is played back by the operation of the video playback device 1 is registered. Each key to be registered in the guide information is registered so that the operation is more important for the user, or the keys used for the operation that the user seems to use more frequently are registered in the order of precedence. To do.

  The guide data server 61 of the guide information center system 6 is registered with the identifier of the type of the HD DVD 2 designated by the video playback device 1 in response to the guide information request from the video playback device 1 via the WAN 5. The guide information of the DVD guide record is retrieved from the guide information database 62 and provided to the video playback apparatus 1.

Now, in such a configuration, the navigation manager 13 of the video playback device 1 executes the guide information acquisition process shown in FIG. 3a in order to guide the user's key operation.
As shown in the figure, in this process, if the playback of the HD DVD 2 is newly started (step 302), the navigation manager 13 starts all the applications that are started according to the playlist when the playback of the HD DVD 2 starts. (Step 304).

  When all the applications are activated, playback of the HD DVD 2 is paused (step 306). At this time, the AV renderer 15 may also start displaying a predetermined message screen on the display device 18 representing a message notifying that the HD DVD 2 is being read.

  Then, the HD DVD 2 type identifier is read from the HD DVD 2 (step 308), and a guide information request designating the acquired HD DVD 2 type identifier is sent via the data access manager 11 to the guide data server of the guide information center system 6. By issuing to 61, the guide information of the DVD guide record having the identifier of the type of the designated HD DVD 2 registered in the guide information database 62 is acquired via the WAN 5 (step 310) and stored in the memory 16 (Step 312).

  Then, a guide information output process, which will be described in detail later, is executed (step 314). When the guide information output process is completed, the playback of the HD DVD 2 is resumed (step 316), the process returns to step 302, and the next new information is output. Wait for HD DVD2 to start playing. If display of the message screen described above is started in step 306, the guide information output process is executed after erasing the message screen display in step 314.

The guide information acquisition process performed by the navigation manager 13 has been described above.
Next, the guide information output process executed in step 314 of the guide information acquisition process will be described.
FIG. 3b shows the procedure of this guide information output process.
As shown in the figure, in this process, based on the guide information stored in the memory 16, the identification of each key operation registered in the guide information is associated with the description and reference image registered for the key operation. The attached guide screen is displayed on the display device 18 via the AV renderer 15 (step 352).

  Here, for example, when the user operates the “menu” key on the HD DVD 2 being played, a bonus menu as shown in FIG. 4a is displayed according to the definition of the HD DVD 2, and in this state, the “UP: Up Arrow” key is displayed. If a main menu as shown in FIG. 4b is displayed in accordance with the definition of HD DVD 2 when the above operation occurs, for example, a guide screen as shown in FIG. 4c is displayed.

  That is, on this guide screen, the key guide information display area 410 having a tabbed folder shape provided for each key registered in the guide information stored in the memory 16 is shifted, and the position of the tab is shifted. The keys are displayed in an overlapped order according to the registration order of the keys, the key identification information 411 corresponding to the key guide information display area 410 is arranged on the tab of each key guide information display area 410, and the frontmost key guide information display In the area 410, an explanatory note 412 and a reference image 413 registered in the guide information are arranged for the corresponding key. In the guide information output process, the key guide information display area 410 displayed in the foreground is selected according to the user's tab selection operation in the key guide information display area 410 as shown in FIGS. A process of switching to the key guide information display area 410 having the above is also performed.

  Returning to FIG. 3b, if any key of the input device 17 is operated by the user while the guide screen is displayed (step 354), the display of the guide screen is deleted (step 356) and the guide information is output. The process ends. For the user's key operation detected in step 354, after the HD DVD 2 starts to be played in step 316 of the guide information acquisition process, the application in which the process for the UI event is defined executes the process. Will do. If the navigation manager 13 defines a process for the UI event by default, the navigation manager 13 executes the process.

  As a result, in the example shown in FIGS. 4c and 4d, if the “menu” key is operated while the guide screen is displayed, the application displays the bonus menu screen shown in FIG. If the bonus menu can be used and the “UP: Up Arrow” key is operated while the guide screen is displayed, the application displays the screen of the main menu shown in FIG. The menu becomes available.

The guide information output process performed by the navigation manager 13 has been described above.
As described above, according to the present embodiment, guide information for guiding key operations for each type of HD DVD 2 is collected and accumulated in the guide information server in advance, and when the HD DVD 2 is played back by the video playback device 1, the HD DVD 2 is recorded. The guide information of the type is acquired from the guide information server, and each key operation of the video playback device 1 is guided by the guide screen based on the acquired guide information. Thus, it is possible to perform appropriate operation guidance that matches the HD DVD 2 to be played back to the user.

Incidentally, in such a video playback device 1, the navigation manager 13 may further perform a reference image upload process shown in FIG.
As shown in the drawing, in this process, the user waits for the occurrence of a key operation during playback of the HD DVD 2 (step 502). If a key operation occurs, the guide information in the memory 16 is changed to the key in which the key operation has occurred. On the other hand, it is checked whether or not a reference image is registered (step 504). If it is registered, the process returns to step 502 to wait for the next key operation.

  On the other hand, if the reference image is not registered (step 504), AV processing is executed by the navigation manager 13 executing processing of an application that handles the generated key operation or processing defined by default for the generated key operation. The renderer 15 checks whether or not the reproduced image generated from the decoded video of the presentation engine 14 has changed (step 506). If not, the process returns to step 502 to wait for the next key operation.

  On the other hand, if the playback image has changed (step 506), the playback image after the change is acquired from the AV renderer 15, the acquired playback image, the key operation detected in step 502, and the HD DVD 2 being played back By issuing a reference image registration request with an identifier of the type to the guide data server 61 of the guide information center system 6 via the data access manager 11, the acquired reproduced image is uploaded to the guide information center system 6 ( Step 508). Then, the process returns to step 502 to wait for the next key operation.

  On the other hand, the guide data server 61 of the guide information center system 6 that has received the reference image registration request from the video playback device 1 stores the guide information of the DVD guide record in which the identifier of the type of HD DVD 2 associated with the reference image registration request is registered. The reference image accompanying the reference image registration request is registered in the key entry indicated by the key operation identification accompanying the reference image registration request. Here, when the entry of the key indicated by the key operation identification accompanying the reference image registration request does not exist in the guide information of the DVD guide record in which the identifier of the type of HD DVD 2 accompanying the reference image registration request is registered, After creating the entry, the reference image accompanying the reference image registration request is registered.

As described above, the reference image corresponding to each key for each HD DVD 2 type can be automatically collected and stored from each video playback apparatus 1 in the guide information database 62 by doing in this way. .
In addition, the guide information execution process shown in FIG. 3B of the above embodiment is not performed during the guide information acquisition process, or is performed during the guide information acquisition process, and the guide information is output by a predetermined operation from the user. It may also be performed when a request is input.
By the way, in HD DVD2, the video content creator should change the combination of applications to be activated for each content playback section, so that the video playback device 1 performs the key operation and the key operation for each content playback section. The correspondence of operation can also be different.

  Even in the case where the key operation and the operation to be performed by the video playback device 1 in response to the key operation are different for each content playback section, the present embodiment is extended as follows. Thus, an appropriate guide screen can be displayed at any time.

  That is, in this case, the guide information of the DVD guide record is provided for each combination of applications, and the guide information corresponding to each combination includes the operation of the video playback device 1 when the application is activated in the combination. The video playback device 1 is provided with an entry corresponding to each key that can be used to operate the key, and each entry is operated by key operation of the corresponding key when the application is activated in the combination. And a reference image which is an image of a display screen such as a menu screen reproduced by the operation of the video reproducing apparatus 1 operated by the key operation of the corresponding key.

  Then, in the video playback apparatus 1, in step 310 of the guide information acquisition process described above, all of the guide information of the DVD guide record in which the identifier of the type of the HD DVD 2 being played back is registered is stored in the memory 16, In the guide information output process, a guide screen is displayed based on guide information corresponding to a combination of applications that are currently running.

  In the above description, the application to the video playback apparatus 1 that plays back an HD DVD storing video content according to the HD DVD-Video standard has been described as an example. However, in the present embodiment, the Blu-ray storing video content according to the BDMV standard is described. The same can be applied to the video playback apparatus 1 that plays back a ray disc.

It is a block diagram which shows the structure of the video reproduction apparatus which concerns on embodiment of this invention. It is a figure which shows the DVD guide record used in embodiment of this invention. It is a flowchart which shows the guide information acquisition process which concerns on embodiment of this invention. It is a block diagram which shows the example of a display screen of the video reproduction apparatus which concerns on embodiment of this invention. It is a flowchart which shows the guide information output process which concerns on embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Video reproduction apparatus, 2 ... DVD disk, 3 ... Persistent storage, 4 ... Network server, 5 ... WAN, 6 ... Guide information center system, 11 ... Data access manager, 12 ... Data cache, 13 ... Navigation manager, 14 ... presentation engine, 15 ... AV renderer, 16 ... memory, 17 ... input device, 18 ... display device, 19 ... speaker, 61 ... guide data server, 62 ... guide information database.

Claims (6)

A guide information providing system comprising: a video playback device that plays back a video disc on which video content is recorded; and a guide information server to which the video playback device is connectable via a wide area network.
In the video disc, a definition of an operation to be performed by the video playback device in response to a user operation during playback of the video disc is recorded,
The guide information server is
For each type of video disc, a database in which guide information for guiding key operations of the video playback device when playing a video disc of the type is registered,
A guide information providing unit that reads and provides guide information of the type of the specified video disc from the database in response to a guide information request accompanied by specification of the type of the video disc from the video playback device;
The video playback device includes:
Memory,
A guide information acquisition unit that receives the guide information from the guide information server and stores it in the memory by transmitting a guide information request with designation of the type of the video disc to be played back to the guide information server;
A guide information providing system, comprising: a guide screen display unit for displaying a guide screen for guiding key operations of the video playback device based on guide information stored in the memory. The guide information providing system according to claim 1,
The guide information includes a screen image displayed by the video playback device when each key operation occurs as a reference image,
The guide screen display unit displays a guide screen including the reference image based on guide information stored in the memory. A guide information providing system according to claim 2,
The video playback device includes:
A reference image registration request is sent to the guide information server, which includes a screen image displayed by the video playback device when a key operation occurs, a type of video disc to be played back, and identification information of the generated key operation. A reference image registration unit
In response to the reference image registration request received from the video playback device, the guide information server converts the image accompanying the reference image registration request into guide information of the type of the video disc indicated by the identification information accompanying the reference image registration request. And a reference image registration unit for registering as a reference image for key operation indicated by the identification information. A video playback device for playing back a video disc on which video content is recorded,
In the video disc, a definition of an operation to be performed by the video playback device in response to a user operation during playback of the video disc is recorded,
The video playback device
For each type of video disc, access to a guide information server including a database in which guide information for guiding key operations of the video playback device when reproducing the video disc of the type is registered via a wide area network, A guide information acquisition unit for acquiring guide information of a type of a video disc to be reproduced and storing it in the memory;
A video playback device comprising: a guide screen display unit for displaying a guide screen for guiding key operations of the video playback device based on guide information stored in the memory. An operation guide method for guiding a user operation in a video playback device for playing back a video disc on which video content is recorded,
In the video disc, a definition of an operation to be performed by the video playback device in response to a user operation during playback of the video disc is recorded,
The operation guidance method is
For each type of video disc, access to a guide information server including a database in which guide information for guiding key operations of the video playback device when reproducing the video disc of the type is registered via a wide area network, A step of obtaining guide information of a type of video disc to be reproduced;
And displaying a guide screen for guiding key operations of the video playback device based on guide information stored in the memory. A computer program that is read and executed by a computer,
The computer,
A video playback device for playing back a video disc on which video content is recorded,
For each type of video disc, access to a guide information server including a database in which guide information for guiding key operations of the video playback device when reproducing the video disc of the type is registered via a wide area network, A guide information acquisition unit for acquiring guide information of a type of a video disc to be reproduced and storing it in the memory;
A computer program that functions as a video playback device including a guide screen display unit that displays a guide screen for guiding key operations of the video playback device based on guide information stored in the memory.