JP2011187130A - Disk playback device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk playback device that displays only one of a pop-up menu and a user interface unique to a title of an HDMV mode or a BD-J mode, to reduce operation errors. <P>SOLUTION: The disk playback device includes a signal processing means receiving operation of a user and displaying a pop-up menu and a user interface unique to the title played back by a playback means 16, on a monitor 43. The signal processing means 15 displays only one of the pop-up menu or the user interface on the monitor 43 when it receives the operation of the user to display the pop-up menu or the user interface. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a disc reproducing apparatus for reproducing data recorded on a recording medium such as a BD-ROM.

  2. Description of the Related Art In recent years, disk playback devices that play back large-capacity disks that record information with high image quality, high sound quality, and advanced interactive functions have become popular in general households.

  A typical disc playback device is a Blu-ray Disc (BD: Blu-ray Disc, hereinafter referred to as “BD”). The BD has a huge data capacity of 25 GB (GB: Giga Byte) with a single layer and 50 GB with two layers, and can store movie content with high-definition image quality. This commercial and rental package software using BD is provided by BD-ROM (Blu-ray-Read-Only-Memory), which is a read-only medium in which data is written during the manufacturing process and cannot be added or rewritten. ing.

  This BD-ROM has two specifications, HDMV mode and BD-J mode. The HDMV mode is an extension of the video and audio codec specifications over the conventional DVD-ROM, and can use high-definition video and high-quality audio. The content specification is the same as that of the DVD-ROM. In the BD-J mode, in addition to the HDMV mode, a visual expression such as superimposing images can be added by a Java (registered trademark) application.

  Here, in the case of a conventional DVD, when a menu is called during the main part reproduction, the reproduction is interrupted and the menu screen is displayed on the entire screen. The “pop-up menu” adopted by the BD is a pop-up menu that is translucent to the playback screen without interrupting the main-frame playback.

  Many HDMV mode titles have this pop-up menu. The pop-up menu has functions such as moving to the top menu, transition of the playback position, and changing the audio / subtitle stream.

  In the title of the BD-J mode, the BD-J application, which is a Java (registered trademark) application, realizes a graphics menu in which the pop-up menu of the HDMV title and the form displayed on the screen are almost the same. Hereinafter, the HDMV mode pop-up menu and the BD-J mode graphics menu displayed by the BD-J application are collectively referred to as a pop-up menu.

  As a function of the disc playback apparatus, there is a user interface that displays a playback button, a stop button, and the like on the screen, and allows the user to operate the operation of the button, but is different from the pop-up menu described above. The pop-up menu is uniquely held by HDMV mode and BD-J mode titles, that is, information on the pop-up menu is held on a disc such as a BD-ROM and has a function unique to each title.

  In addition, a dedicated button that realizes functions of a user interface and a pop-up menu is provided on the remote control or the like, and the user can display the menu by pressing the button (see, for example, Patent Document 1).

JP 2004-304767 A

  However, in the conventional technology, the user operates a remote controller or the like to display a user interface and a pop-up menu on the screen. However, since the display position and display form of the pop-up menu are set for each title, the user interface and the pop-up menu may be displayed overlapping each other.

  Also, the user cannot determine whether the displayed menu is a user interface or a pop-up menu simply by looking at the screen. Therefore, the user is confused as to which menu display on the screen should be operated, and there is a possibility that the user performs an incorrect operation.

  In particular, in a car navigation system or the like used in an in-vehicle environment, operation with a touch panel is the mainstream, and hence the possibility of erroneous operation is even higher. In other words, touch panel operation is performed by directly touching each button of the user interface and pop-up menu displayed on the screen, and if the wrong button is accidentally pressed, an operation unintended by the user may occur.

  The present invention has been made to solve the conventional problems, and displays a pop-up menu and a user interface that are specific to HDMV mode and BD-J mode titles, thereby reducing operation errors. An object is to provide an apparatus.

  In order to solve the above problems, the present invention includes a signal processing unit that receives a user's operation and displays a pop-up menu and a user interface specific to a title being played back by a playback unit on a monitor. When a user operation for displaying a pop-up menu or a user interface is accepted, only the pop-up menu or the user interface is displayed on the monitor.

  According to the present invention, since either the pop-up menu or the user interface specific to the HDMV mode and BD-J mode titles is displayed on the screen, it is possible to provide a disc playback apparatus that can reduce operation errors. It is.

Block diagram of the disc playback apparatus according to the present embodiment The figure which showed the structure of BD-ROM which concerns on this Embodiment The figure which shows the relationship between the index.bdmv file and the title concerning this embodiment The figure which shows the system configuration | structure using the disc reproducing | regenerating apparatus concerning this Embodiment. (A) A figure showing an example of a title reproduction screen concerning this embodiment (b) A figure showing a display example of a pop-up menu concerning this embodiment The figure which shows the processing flow at the time of operating using the remote control which concerns on this Embodiment The figure which shows the processing flow at the time of operating using the touchscreen which concerns on this Embodiment. The figure which shows the processing flow in the case of operating the pop-up menu of BD-J title using the touch panel which concerns on this Embodiment.

  In the following, description will be given with reference to FIG. 1 which is a block diagram of a disc playback apparatus 100 according to the present embodiment.

  The disc playback apparatus 100 includes a pickup 11 that acquires data from the BD-ROM 10, a servo 12 that controls the pickup 11, a local storage 13, a network interface 14, a signal processing unit 15, a playback unit 16, and a memory 19. The signal processing means 15 includes a pop-up menu detection means 17 and a user operation means 18.

  Next, each configuration will be described.

  The BD-ROM 10 is a recording medium on which AV contents such as movie works and live video are recorded.

  The servo 12 is a device that moves the pickup 11 in the radial direction of the recording medium (seek) and adjusts the movement (focus) of the recording medium in the axial direction.

  The pickup 11 acquires various data from the BD-ROM 10 and sends the data to the signal processing means 15.

  The data processed by the signal processing unit 15 includes not only data of the BD-ROM 10 but also data stored in the local storage 13 and data downloaded from the network via the network interface 14.

  The signal processing means 15 is a means for processing these data so that the reproduction means 16 can reproduce AV contents and the like. Further, the signal processing means 15 receives the contents of the user operation, determines whether or not the operation can be accepted, and causes the user operation means 18 to execute the operation if it can be accepted. Further, it has a function of displaying a user interface built in the memory 19 of the disc playback apparatus 100 from the beginning on the monitor 43 shown in FIG.

  The user interface is a program that is stored in the memory 19 and displays a play button, a stop button, and the like as functions of the disc playback apparatus 100 on the monitor 43 and the like. When the user operates the remote controller 45 or the touch panel 46 shown in FIG. 4, the signal processing unit 15 combines the user operation with the function of each button, and causes the user operation unit 18 to execute the operation of the operated button.

  The pop-up menu detection unit 17 is included in the signal processing unit 15 and has a function of detecting whether a pop-up menu is displayed.

  Next, the file structure of the BD-ROM 10 will be described with reference to FIG.

FIG. 2 is a diagram showing the configuration of the BD-ROM 10. The BD-ROM 10 has a recording area that spirals from the inner periphery to the outer periphery in the same manner as other optical discs such as a DVD (Digital Versatile Disc) and a CD (Compact Disc). A logical address space in which logical data can be recorded during the lead-out. In addition, inside the lead-in, BCA (Burst Cutting)
There is a special area called Area) that can only be read by the drive. Since this area cannot be read from the application, it is used for copyright protection technology, for example.

  In the logical address space, application data such as video data is recorded with file system information (volume) at the head. The file system is UDF, ISO9660, or the like, and logical data recorded in the same way as a normal PC can be read out using a directory and file structure. A file name of 255 characters The directory name can be read out.

  The directory and file structure on the disc of the BD-ROM 10 are the BDMV directory and bd. A cert file is placed. The BDMV directory is a directory in which data such as AV contents handled by the BD-ROM 10 and management information is recorded. bd. cert (fixed file name) is a certificate used for signature verification when merging content added for a virtual package with data on the BD-ROM 10.

  Under the BDMV directory, there are five subdirectories called PLAYLIST directory, CLIPINF directory, STREAM directory, BDJO directory, and JAR directory. The BDMV directory includes an index. bdmv, MovieObject. Two types of bdmv files are arranged.

  Here, the index. The bdmv (file name fixed) will be described. index. bdmv is management information relating to the entire BD-ROM 10, and is an organization ID (32 bits) that is an identifier that identifies a provider of movie works, a disc ID (128 bits) that is an identifier assigned to each BD-ROM 10 provided by the provider, and the like. After inserting the disc into the disc playback apparatus 100, the index. By reading bdmv first, the disc playback apparatus 100 uniquely recognizes the disc. In addition, index. bdmv includes a table in which a plurality of titles that can be reproduced on the BD-ROM 10 and BD-J objects that define individual titles are associated with each other.

  Next, a file with the extension “bdjo” will be described.

  A file with the extension “bdjo” is a file storing a BD-J object. The BD-J object is information that defines a title by associating an AV stream indicated by PlayList information with an application. The BD-J object indicates an “application management table” and a list of PlayLists that can be reproduced in the title. The application management table (AMT) is a table that realizes “application signaling”. “Application signaling” refers to control that manages the title in the BD-ROM 10 as the life of the application and controls the start and end of the application. Here, the life interval indicates a time interval in which the application can live on the heap memory of the virtual machine on the time axis of the entire content recorded in the BD-ROM 10. “Survival” means that the application has been read into the heap memory and can be executed by the virtual machine. The application management table shows an application having this title as a life cycle by listing an application identifier (application ID) and an ID of a Java (registered trademark) archive file belonging to the application. That is, one application is composed of one or more Java (registered trademark) archive files.

  A Java (registered trademark) application whose sector is managed by the application management table in the BD-J object in this way is referred to as a “BD-J application”.

  FIG. It is a figure which shows the relationship between a bdmv file and a title. A title is a playback unit that combines an application and an AV stream. The bdmv file describes the title structure on the disc, and refers to each title on the disc and the corresponding application (BD-J application for the BD-J mode title, scenario program for the HDMV mode title). I manage the relationship. In addition, “First Playback” and “Top Menu” exist as special titles. “First Playback” is a title that is automatically played back first when the BD is activated. It is mainly used for BD usage agreement display. “Top Menu” is played when the menu key of the remote controller is pressed or when the title reproduction is finished, and is mainly used for selecting a title and selecting a subtitle / audio language.

  Here, FIG. 4 shows an example of a usage pattern of the disc playback apparatus 100 according to the present embodiment as a system. For example, the disc playback apparatus 100 is configured with a BD-ROM 10, a removable medium 42, a monitor 43, a WWW server 44, and a remote controller 45.

  The monitor 43 is a device that displays reproduced video. In addition, an operation menu such as a pop-up menu and a user interface is displayed to the user. Therefore, the user can visually operate the disc playback apparatus 100 using the remote controller 45. A touch panel 46 may be attached on the display screen of the monitor 43 so that the user can operate it. At this time, the signal processing means 15 detects the position on the screen where the user touches the touch panel 46 with a finger or the like, and performs various user operations corresponding to the pop-up menu and the user interface buttons displayed at the position on the screen. The user operation means 18 can also be executed.

  The remote controller 45 is a device for remotely operating the disc playback apparatus 100 by a user. The user can play back the content recorded on the BD-ROM 10 by operating buttons on the remote controller 45 or the disc playback apparatus 100.

  Here, a display example of the pop-up menu will be described with reference to FIG.

  In the reproduction screen on which a plurality of circular objects shown in FIG. 5A are drawn, the user operates a pop-up menu key with a remote controller or the like. Then, the pop-up menu example 50 is displayed on the monitor 43 on the screen being reproduced as shown in FIG. In the pop-up menu example 50, buttons for user operations are prepared, and the currently selected button is highlighted by the highlight 51.

  According to the pop-up menu example 50, the main functions that can be operated by the user include changing the title being played, switching the language of audio / subtitles, changing chapters, etc., and can incorporate functions that the user wants to operate during playback. It is.

  Next, a process when the user operates using the remote controller 45 to display a pop-up menu in the HDMV mode or the BD-J mode will be described with reference to FIG.

  In step 60, the user operates the pop-up menu button on the remote controller 45.

  In step 61, if the signal processing means 15 determines that the pop-up menu can be displayed in the title being reproduced by the reproducing means 16, the process proceeds to step 62. On the other hand, when the signal processing means 15 determines that the pop-up menu cannot be displayed in the title being reproduced by the reproducing means 16, the signal processing means 15 displays on the monitor 43 or the like that the pop-up menu operation is not possible and notifies the user (step 65). In step 65, the user operation can be ignored by the signal processing means 15, and nothing can be performed.

  In step 62, when it is confirmed that the user interface is displayed on the monitor 43, the signal processing means 15 deletes the display of the user interface (step 64). Thereafter, the process proceeds to step 63. On the other hand, when the signal processing means 15 confirms that the user interface is not displayed on the monitor 43, the signal processing means 15 proceeds to step 63 as it is.

  In step 63, the signal processing means 15 displays a pop-up menu of the title being reproduced by the reproducing means 16 on the monitor 43, and ends the processing.

  In the foregoing, the procedure for the user to display the pop-up menu using the remote controller 45 has been described. When displaying the user interface, the above-described procedure may be performed by replacing the pop-up menu with the user interface.

  As described above, since either the pop-up menu or the user interface is displayed on the monitor 43, an operation error can be reduced.

  Next, an operation when the user touches the touch panel 46 in order to display a pop-up menu in the HDMV mode will be described with reference to FIG.

  When the user touches the touch panel 46 (step 70), the signal processing means 15 determines whether or not a button exists at the screen position operated by the user. When the signal processing unit 15 determines that the button exists (step 71), the process proceeds to step 72. The button may be a button for performing a user operation including a pop-up menu and a user interface.

  In step 72, the signal processing means 15 causes the user operation means 18 to execute the user operation of the button at the location pressed by the user.

  If the signal processing unit 15 determines in step 71 that there is no button, the process proceeds to step 73.

  In step 73, the signal processing means 15 determines whether or not a pop-up menu can be displayed in the title being reproduced by the reproducing means 16. If the signal processing means 15 determines that the pop-up menu cannot be displayed because the pop-up menu does not exist in the title being played back, the process proceeds to step 74. Since the presence / absence of the pop-up menu is held in the management information of the *****. Clpi file in FIG. 2, the signal processing means 15 may confirm this information.

  In step 74, even if the pop-up menu cannot be displayed, it is expected that the user has touched the touch panel 46 to perform some operation. Therefore, the signal processing means 15 causes the monitor 43 to display the user interface. May be. Note that it is possible that the user accidentally touched it, so that the user operation can be ignored.

  On the other hand, in step 73, when the signal processing means 15 determines that the pop-up menu can be displayed in the title being reproduced by the reproducing means 16, the signal processing means 15 displays the pop-up menu on the monitor 43 (step 75).

  As described above, according to the sequence of FIG. 7, when the user wants to execute an operation that does not exist in the pop-up menu, the user interface is displayed by touching a portion where the button does not exist. Therefore, the user can continue the operation.

  In addition, if the sequence of FIG. 7 is used, it is possible to operate the user touch panel operation in the priority order of button operation, pop-up menu, and user interface, and the pop-up menu and the user interface are displayed in an overlapping manner. It is possible to reduce the number of erroneous operations by the user.

  In the above, the display procedure of the pop-up menu and the user interface in the HDMV mode has been described. However, in order to display a pop-up menu with a touch panel operation in the title of the BD-J mode, the processing described in FIG. 8 is necessary.

  With the title in the BD-J mode, step 63 in FIG. 6 and step 75 in FIG. 7 can display a pop-up menu even in the title in the BD-J mode by the processing described below.

  The pop-up menu in the BD-J mode displays the pop-up menu when the user's operation POPUP_ON is notified to the BD-J application as VK_POPUP_MENU. This function is displayed in the same way as a pop-up menu in the HDMV mode when viewed from the user, and is included in most contents.

  In order to display this pop-up menu, a mouse event supported by the content is used. The mouse event is an operation that detects a mouse click or a mouse press and performs an operation registered in the BD-J application.

  Using this function, a pop-up menu is displayed in the sequence of FIG. Here, a description will be given assuming that the content includes a BD-J application that supports a mouse event and VK_POPUP_MENU.

  When the signal processing means 15 detects the touch panel operation of the user (step 80), the signal processing means 15 issues a mouse press to the BD-J application (step 81).

  In step 82, VK_POPUP_MENU is issued to the BD-J application.

Note that the presence or absence of a mouse press event registered in the BD-J application may be added to the determination of whether the pop-up menu can be displayed in step 61 of FIG. 6 and step 73 of FIG. When the mouse press event is registered, the BD-J application determines that some other operation is performed, and does not issue VK_POPUP_MENU in step 82. If the mouse press event is not registered, VK_POPUP_MENU is issued to the BD-J application by touch panel operation (step 82). By doing so, the mouse press event registered in the BD-J application is not erroneously executed in the processing of step 63 in FIG. 6 and step 75 in FIG.

  As described above, the disk reproducing apparatus according to the present invention is useful as a disk reproducing apparatus for reproducing data recorded on a recording medium such as a BD-ROM disk.

10 BD-ROM
DESCRIPTION OF SYMBOLS 11 Pickup 12 Servo 13 Local storage 14 Network interface 15 Signal processing means 16 Playback means 17 Pop-up menu detection means 18 User operation means 19 Memory 42 Removable media 43 Monitor 44 WWW server 45 Remote control 46 Touch panel 100 Disc playback device

Claims (5)

A disc playback apparatus for playing back a disc holding a title in HDMV mode or BD-J mode,
Playback means for playing back the title;
A monitor for displaying a playback screen of the title played by the playback means is connected;
A memory for holding a user interface program for displaying a screen for accepting a user operation on the monitor;
A signal processing means for receiving a user operation and displaying the pop-up menu specific to the title being played by the playback means and the user interface on the monitor;
When the signal processing means accepts a user operation for displaying the pop-up menu or the user interface, only the pop-up menu or the user interface is displayed on the monitor.   2. The signal processing unit, when receiving a user operation for displaying the pop-up menu or the user interface, erases the pop-up menu or the user interface different from the one operated by the user. The disc playback apparatus described in 1.   2. The disk reproducing apparatus according to claim 1, wherein the signal processing means accepts a user operation by a remote controller or a touch panel integrated with the monitor.   When the signal processing unit accepts a user operation for displaying the pop-up menu on the touch panel and determines that the pop-up menu can be displayed, the signal processing unit displays the pop-up menu on the monitor, and the pop-up menu cannot be displayed. 4. The disc reproducing apparatus according to claim 3, wherein when it is determined that the user interface is present, the user interface is displayed on the monitor.   5. The signal processing unit according to claim 4, wherein the signal processing unit determines that the operation is a user operation for displaying the pop-up menu when there is no button for accepting the user operation at a location where the user touches the touch panel. Disc player.