JP2006073187A - Optical disk device and optical disk processing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To acquire extended contents in a state of maintaining security from a delivery server on a network. <P>SOLUTION: An optical disk device is provided with a storage section for storing connection information which shows connection validity/invalidity with the external through a communication line, a communication means for communicating with the delivery server on the communication line according to address information in the optical disk, when these show a connection with the external with reference to classification information and connection information recorded on an optical disk when the optical disk is inserted, an authentication information transmitting means for reading authentication information for disk authentication from a storage area of the optical disk to transmit it to the delivery server according to a request from the delivery server, a download means for downloading the extended contents from the delivery server when the delivery of the extended contents is permitted by disk authentication processing in the delivery server, a reproducing section for reproducing and outputting the extended contents synchronizing with image/audio information in the optical disk, and an interruption means for interrupting a connection state with the delivery server when the optical disk is ejected. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an optical disk device, and more particularly to an optical disk device connected to a web content distribution server and a communication method between the optical disk device.

  Recently, “DVD Specifications for Read-Only Disc Part 3: VIDEO SPECIFICATIONS” was issued in August 1996 as a standard for reproducing video / audio information recorded on an information recording medium from the DVD Forum. This standard consists of presentation data in which actual video / audio data is recorded and navigation data for managing the presentation data. In the presentation data, video data, audio data, and sub-picture data are multiplexed according to the specification of a program stream (2048 bytes) defined by MPEG2. The navigation data describes PGC (ProGram Chain) and cells for setting the time structure and order of video / audio data to be played back, and realizes functions such as multi-angle, multi-story, and parental. .

Patent Document 1 discloses an image display apparatus that performs a service in which a DVD video title and an HTML file are merged as a related art. In this image display device, it is shown that a URL is extracted from a navigation pack of a video object unit, and based on this, it is connected to the Internet and displayed in conjunction with a scene being reproduced.
JP-A-11-161663.

  However, in Patent Document 1, there is a problem that the DVD video title and the HTML content are only displayed in parallel, and the expression ability of images and the like is not sufficient. Furthermore, the security of the distributed information is insufficient, and there is a problem that an unspecified number of people can use it if the address is known.

  An object of the present invention is to provide an optical disc apparatus and an optical disc processing method capable of using extended information via a communication line while maintaining high security.

  The present invention provides an optical disk device that reproduces video or audio information from an optical disk, a storage unit that stores connection information indicating whether or not to connect to the outside through a communication line, and when the optical disk is inserted The communication information is recorded in accordance with the address information recorded on the optical disc when the type information recorded on the optical disc and the connection information stored in the storage section are referred to to indicate external connection. Communication means for communicating with a distribution server on the line, and in response to a request from the distribution server by communication of the communication means, authentication information for disk authentication is read from the storage area of the optical disk and transmitted to the distribution server When the distribution of the extended content is permitted by the authentication information transmitting means that performs the disk authentication process in the distribution server, the distribution server Download means for downloading extended content from a bar, a playback unit for playing back and outputting the extended content obtained by the download in synchronization with video or audio information read from the optical disc, and when the optical disc is ejected, An optical disc apparatus comprising: interruption means for interrupting a connection state with the distribution server.

  In the optical disc device according to the present invention, it is possible to acquire extended content from a distribution server on the network while maintaining security.

  Hereinafter, an optical disk apparatus according to an embodiment of the present invention and an optical disk handled by the optical disk apparatus will be described with reference to the drawings.

<Optical Disc According to the Present Invention>
First, an example of an optical disc handled by the optical disc apparatus according to the present invention will be described below with reference to the drawings. This optical disk has compatibility with the existing DVD video standard and has the following data structure. FIG. 2 shows an example of the data structure of a DVD video disc in which the DVD video player which is the optical disc apparatus shown in FIG.

  FIG. 2 shows an example of the data structure of a DVD video disc that is played back by a DVD video player that is the optical disc apparatus shown in FIG. FIG. 2 shows an enhanced DVD video disc, in which DVD video content (having an MPEG2 program stream structure) having the same data structure as that of the existing DVD video standard is stored in the DVD video area. Enhanced navigation (hereinafter abbreviated as ENAV) content, which is extended information, can be recorded in another recording area. ENAV content is a general term for still images, audio, animation, markup languages, and the like, and can reproduce video content in a variety of ways. For reference, FIG. 3 shows a DVD video disc that does not have ENAV contents in the DVD video area.

  Here, the contents of the DVD video area will be briefly described.

  In other words, in FIG. 2, the recording area of the DVD video disk d includes a lead-in area 11, a volume space 12, and a lead-out area 15 in order from the inner periphery. The volume space includes a volume / file structure information area 12 and a DVD video area (DVD video zone) 13, and can optionally include another recording area (DVD other zone) 14.

  The volume / file structure information area 12 is an area allocated for a UDF (Universal Disk Format) bridge structure. A volume in the UDF bridge format is recognized in accordance with Part 2 of ISO / IEC13346. The space for recognizing this volume is composed of continuous sectors, and starts from the first logical sector of the volume space shown in FIGS. The first 16 logical sectors are reserved for system use as defined by ISO9660. In order to ensure compatibility with the existing DVD video standard, a volume / file structure information area having such contents is required.

  In the DVD video area, management information called video manager VMG12 and one or more video contents called video title sets VTS (VTS # 1 to VTS # n) 22 to 23 are recorded. The VMG 21 is management information for all VTSs existing in the DVD video area, and includes control data VMGI, VMG menu data VMGM_VOBS (option), and VMG backup data (not shown). Each VTS includes control data VTSI of the VTS, VTS menu data VTSM_VOBS (option), data of the VTS (title) (title, etc.) data VTSTT_VOBS, and backup data of VTSI, although not shown. . In order to ensure compatibility with the existing DVD video standard, a DVD video area having such contents is also required.

  A playback selection menu or the like for each title (VTS # 1 to VTS # n) is given in advance by a provider (DVD video disk producer) using VMG, and a playback chapter selection menu within a specific title (for example, VTS # 1). The recording contents (cell) reproduction procedure and the like are given in advance by the provider using VTSI. Accordingly, the disc viewer (DVD video player user) can enjoy the recorded contents of the disc d according to the VMG / VTSI menu prepared in advance by the provider and the playback control information (program chain information PGCI) in the VTSI. it can. However, in the existing DVD video standard, the viewer (user) cannot play back the content (movie or music) of the VTS by a method different from the VMG / VTSI prepared by the provider.

  The optical disc according to the present invention is an enhanced DVD video disc as shown in FIG. 2, whereby the content (movie or music) of the VTS is reproduced by a method different from the VMG / VTSI prepared by the provider, for example, ENAV You can play content.

  That is, the ENAV content included in this disc is provided in the other recording area 14 described above. As an example, the markup / script language 31, the moving image data 32, the still image data 33, and the audio data 34 are included. And are provided. Such an ENAV content cannot be accessed by a DVD video player manufactured only based on the existing DVD video standard (the content cannot be used even if it can be accessed), but is a DVD video with an ENAV playback unit according to the present invention. The player (such as the optical disc apparatus A shown in FIG. 1) can access and use the playback content.

(ENAV content)
Here, the ENAV content is configured to include data such as sound, still image, text, and moving image and information (described in a markup / script language) for controlling the reproduction thereof. Information for controlling this playback includes ENAV content (consisting of audio, still image, text, video, etc.) and / or DVD video content playback method (display method, playback procedure, playback switching procedure, playback target Selection) is described using a markup language or a script language. For example, HTML (Hyper Text Makeup Language) / XHTML (eXtensible Hyper Text Makeup Language) and SMIL (Synchronized Multimedia Integration Language), script languages such as ECMA (European Computer Manufacturers Association) scripts and Java (Java) scripts. Etc. can be used in combination.

  Further, since the enhanced DVD video disc of FIG. 2 complies with the existing DVD video standard except for the other recording areas, the video content recorded in the DVD video area can be reproduced even if an existing DVD video player is used. be able to. In other words, it is compatible with models prior to the optical disc apparatus assuming an enhanced DVD video disc.

  However, ENAV contents recorded in other recording areas cannot be reproduced (or cannot be used) by an existing DVD video player, but are reproduced and used by the optical disc apparatus according to the present invention shown in FIG. can do. Therefore, if ENAV content is played back using the optical disc apparatus according to the present invention, the video expression rich in variety according to the ENAV standard is used without being limited to the contents of VMG / VTSI prepared in advance by the provider. It becomes possible.

  In the optical disc d which is an enhanced DVD video disc according to the present invention, the address information of the web content distribution server S connected to the ENAV content via the Internet and information used for authentication processing are provided as follows. As described above, while ensuring high security, it is possible to use not only the information in the disc but also the enhanced navigation content via the communication line in conjunction with the information.

  Note that the address information of the web content distribution server S connected via the Internet and the information used for the authentication process are not necessarily provided in the above-mentioned ENAV content, but for example, the video management information VMG21 of the DVD video content or the video It may be provided in the title set VTS 22 or may be provided in another area as long as it enables an access operation and an authentication operation of the optical disc apparatus according to the present invention described below. The effect of the present invention is exhibited.

<Optical Disc Device According to the Present Invention>
Next, the optical disk apparatus according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an example of the configuration of an optical disc apparatus according to the present invention, FIG. 4 is a diagram showing an example of internal parameters, FIG. 5 is a flowchart showing an example of operation at startup, and FIG. FIG. 7 is a flowchart showing an example of the configuration of ENAV contents handled by the optical disc apparatus according to the present invention, and FIG. 8 is a flowchart showing an example of the playback process of web contents. FIG. 9 is an explanatory diagram showing an example of display of optical disc content and ENAV content from the web performed by the optical disc apparatus according to the present invention, and FIG. 10 shows an example of the configuration of web content handled by the optical disc apparatus according to the present invention. FIG. 11 is a diagram showing web content distribution via the database server by the optical disc apparatus according to the present invention. FIG. 12 is a flowchart illustrating an example of communication with the web content distribution server, FIG. 13 is an explanatory diagram illustrating ENAV content encryption / decryption processing, and FIG. 14 is an optical disc ejection. FIG. 15 is a flowchart illustrating an example of processing, and FIG. 15 illustrates an example of a controller.

  The optical disc apparatus according to the present invention acquires and reproduces ENAV content as extended information from a server via the Internet based on enhanced navigation content while reproducing the above-described optical disc having ENAV content. Thereby, not only the reproduction of the existing DVD content, but also the ENAV content in the disc and the acquired ENAV content are selectively reproduced, thereby making it possible to perform various reproduction processes. In addition, since high security can be ensured by accompanying the authentication process, it is possible to distribute high-value-added ENAV content limited to the case of having a disk. Furthermore, by performing personal authentication, for example, business transactions via the Internet are facilitated.

(Configuration of optical disk device)
The configuration of the optical disk apparatus according to the present invention will be described in detail with reference to FIG. The optical disc apparatus A according to the present invention reproduces and processes the recorded content (DVD video content and / or ENAV content) from the enhanced DVD video disc “compatible with the existing DVD video standard” shown in FIG. In addition, ENAV content (which is called web content) that is extended information is acquired from a communication line such as the Internet and processed.

Overview An example of the configuration of the optical disk apparatus A according to the present invention is as shown in FIG. 1, in which an optical disk is loaded, rotated at a predetermined rotational speed, irradiated with a laser with an optical pickup, received reflected light, and applied to a disk d. A disc detection unit 61 for detecting recorded DVD video content and / or ENAV content, a DVD video playback unit R for playing back and processing an MPEG2 program stream (DVD video content) recorded on the disc d, and ENAV ENAV playback unit E for playback of content, user operation unit 53 for inputting operation information from the user including the external remote controller 101, and content from the web content distribution server S or the like connected to a communication line I such as the Internet Etc. can be divided into the Internet communication unit 62 for acquiring The details of each part will be described below.

  1, the DVD video playback control unit 52, the user event control unit 54 included in the ENAV playback unit E, the ENAV interface unit 55, the ENAV interpretation unit 56, the buffer unit 57, and the like are not shown. It can also be realized by a microcomputer (and / or hardware logic) that performs the function of each block configuration by an embedded program (firmware). A work area used when executing this firmware can be obtained by using a semiconductor memory (not shown) in each block configuration (and a hard disk if necessary).

  The optical disk handled by the optical disk apparatus A according to the present invention is the disk d previously shown in FIG. 2, and DVD video content having the MPEG2 program stream structure and information other than the MPEG2 program stream structure (moving images, still images, animations, etc.) ENAV contents including video information, audio information, text information, link information, etc.) are recorded. In addition, web content made up of video information, audio information, text information, link information, etc. acquired from the Internet or the like is also taken into the optical disc apparatus as ENAV content.

DVD video playback unit The DVD video playback unit R is configured to play back DVD video content based on the existing DVD video standard, and includes a decoder unit 51 and a DVD video that decode the DVD video content read from the disc detection unit 61. A DVD video reproduction control unit 52 that performs content reproduction control is included.

  The decoder unit 51 has a function of decoding video data, audio data, and sub-video data based on the existing DVD video standard, and outputting the decoded video / audio data. As a result, the DVD video playback unit R has the same function as the playback engine of a normal DVD video player manufactured based on the existing DVD video standard. That is, the optical disc apparatus A shown in FIG. 1 can reproduce video, audio, and the like having an MPEG2 program stream structure in the same manner as a normal DVD video player. Can be played back.

  The DVD video playback control unit 52 is configured to be able to control playback of DVD video content in accordance with the “DVD control signal” output from the ENAV playback unit E. Specifically, the DVD video playback control unit 52 indicates the playback status of the DVD video content to the ENAV playback unit E when a certain event (for example, menu call or title jump) occurs during DVD video playback. A “DVD event signal” can be output. At that time (at the same time as the output of the DVD event signal or at an appropriate timing before and after the DVD event signal), the DVD video playback control unit 52 selects the property information of the DVD video player (for example, the audio language and sub-picture subtitle language set in the player). "DVD status signal" indicating the playback operation, playback position information, time information, disc contents, etc.) can be output to ENAV playback section E.

ENAV Playback Unit The ENAV playback unit E includes a user event control unit 54, an ENAV interface unit 55, an ENAV interpretation unit 56, an element decoder 58, and a video / audio output control unit 59. Here, the user event control unit 54 generates a user event corresponding to a user operation (user operation) of the DVD video playback apparatus. The ENAV interpreter 56 (language interpreter) parses and interprets the content of the playback control information included in the ENAV content. The ENAV interface unit 55 (information processing unit) performs syntax analysis by the ENAV interpretation unit 56 and executes a command (ENAV command) included in the interpreted reproduction control information. The element decoder 58 generates video / audio data corresponding to other content (data such as audio, still image, text, and moving image) included in the ENAV content. The output unit (video / audio output control unit 59), based on the execution result of the ENAV command in the ENAV interface unit 55, the video / audio data generated by the element decoder 58 is reproduced by the DVD video reproduction unit R. It is synthesized with audio data and output, or one of video / audio data and video / audio data of the DVD content is selected and output.

Each part is described in more detail below.
Buffer Unit The buffer unit 57 temporarily stores information on the disc d detected by the disc detection unit 61 or ENAV content captured from the Internet communication unit 62 described later, and sends the ENAV content to the ENAV interpretation unit 56 or the element decoder 58. By capturing the ENAV content in the buffer unit 57, the DVD video content can be seamlessly reproduced even when the DVD video content and the ENAV content are simultaneously reproduced. Otherwise, the disc detection unit 61 needs to access the DVD video content and ENAV content in the disc d at high speed, and seamless reproduction becomes difficult.

User event control unit The user event control unit 54 is for performing control based on user operations. User event control units 54 generate user events corresponding to user operations (menu call, title jump, playback start, playback stop, playback pause, etc.). It is configured to receive a user event (a) to (c) corresponding to the content of the user operation or the user event control signal by receiving from the user operation unit 53 or receiving the user event control signal from the ENAV interface unit 55. Yes.

Here, based on the “user event control signal” output from the ENAV interface unit 55, the user event control unit 54 receives the user event signal transmitted by the user operation.
(1) is transmitted to the DVD video playback control unit 52 of the DVD video playback unit R (user event signal (a)),
(2) Prohibit transmission ("X") (user event signal (b)),
(3) The information is transmitted to the ENAV interface unit 55 (user event signal (c)).

At this time, the following control is performed for the transmission of the user event signal.
(11) When the video of the DVD video playback unit R is output (full video mode), the user event signal (a) is directly output to the DVD video playback unit R. This is because the user operation in the full video mode is the same as that during normal DVD video playback.

(12) In the case where the video of the ENAV playback unit E is output (full ENAV mode) or the video of the DVD video playback unit R and the video of the ENAV playback unit E are combined and output simultaneously (mixed frame mode) The following control is performed.

(121) When a user event signal is output to the ENAV interface unit 55 (user event signal (c)), the ENAV interface unit 55 uses a function call corresponding to the event (menu call or the like) as a DVD control signal. , And output to the DVD video playback control unit 52 of the DVD video playback unit R.

(122) A user event is simultaneously output to both the DVD video playback unit R and the ENAV interface unit 55 (user event signal (a) and user event signal (c)).

(123) DVD video playback not intended by the system (for example, a playback method that cannot be supported by the currently operating DVD video playback unit R, or operation is prohibited by the user operation control UOP defined by the current DVD standard) If there is a possibility that the user event signal will occur, the transmission of the user event signal is blocked (prohibited or blocked) ("X" in the user event signal (b)).

  Note that the content of the user event signal (c) transmitted to the ENAV interface unit 55 may be appropriately sent to the ENAV interpretation unit 56 in the form of an ENAV event (and / or ENAV property). Then, the ENAV interpretation unit 56 can create a layout control signal with reference to the contents of the user event signal (c).

  For example, when the cursor key 107 of the remote controller 101 shown in FIG. 15 is used to change the content or window size or shift its display position, this operation is sent from the user event control unit 54 to the ENAV as a user event signal (c). It is sent to the interface unit 55 and converted into a corresponding ENAV event (window size change event, etc.) and / or ENAV property (variable / parameter indicating window size after change), and converted into a corresponding layout control signal. Then, it can be sent to the video output control unit 59.

  Here, the remote controller 101 supplies an operation signal from the user to the user operation unit 53. As an example, as shown in FIG. 15, a power switch and an output mode selection switch 102, and an input key 103 are provided. , Stop, scan, play, scan, record (when recording function is provided), operation switch 104 such as a pause key, cursor key 107 for operating the cursor on the screen generated by the output signal, enter key 106, and release key 105, and an IC card 108, which is a detachable recording medium that enables personal authentication or the like, is mounted, and information can be read and written.

  Further, as shown in FIG. 1, the IC card 108 may be one in which an IC card interface 63 is provided in the main body of the optical disc apparatus, and information is read and written from there for personal authentication.

ENAV interface unit ENAV interface unit 55 transmits / receives a DVD status signal, a DVD event signal and / or a DVD control signal to / from DVD video playback control unit 52, or a user event to / from user event control unit 54 And / or transmit / receive user event control signals. The ENAV interface unit 55 is further configured to transmit / receive an ENAV event, an ENAV property, and / or an ENAV command to / from the ENAV interpretation unit 56. That is, the ENAV interface unit 55 outputs the input DVD status signal as an ENAV property, outputs the input DVD event signal as an ENAV event signal, or converts the input ENAV command into a corresponding DVD control signal. Are output so that they serve as an interface between the DVD video playback unit R and the ENAV playback unit E. The ENAV interface unit 55 then responds to the content of the DVD status signal and DVD event signal from the DVD video playback control unit 52, the user event from the user event control unit 54, and / or the ENAV command from the ENAV interpretation unit 56. A signal for controlling the output state of the video and / or audio is sent to the video / audio output control unit 59.

  Further, when paying attention to the exchange of signals, the ENAV interface unit 55 receives the DVD video from the DVD video playback control unit 52 based on the contents (command) interpreted by the ENAV interpretation unit 56 or the user event from the input device. The first signal (DVD control signal, DVD event signal, DVD status signal) related to the reproduction status of the disc is exchanged, and the second signal (ENAV event, ENAV commands and ENAV properties) are exchanged, and a signal output state by the video / audio output control unit 59 is controlled based on at least one of the exchanged first signal and second signal.

In terms of signal processing, the ENAV interface unit 55 interprets the ENAV content and then converts a control signal and the like between the DVD video playback unit R and the ENAV playback unit E. Specifically, the processing unit performs, for example, the following signal output / signal conversion.
<A> After interpreting ENAV contents, (a) “user event control signal” for controlling a user event corresponding to a user operation input from the user operation unit 53, (b) in the DVD video playback unit R “DVD control signal” for controlling reproduction of DVD video content, and / or (c) “video / audio” for switching video / audio output from the DVD video reproduction unit R and video / audio output from the ENAV reproduction unit E Output control signal "is output. or,
<B> Interpret the contents of the “DVD event signal” indicating the playback status of the DVD video content sent from the DVD video playback unit R (menu call, title jump, etc.), and interpret the DVD event signal The content is converted into a corresponding event signal defined in the ENAV content (for example, a menu call DVD event signal is converted into an ENAV menu call event signal).
<C> Interpret the contents of the "DVD status signal" indicating the properties of the DVD video player sent from the DVD video playback unit R (how many words the audio language is, the current disc playback operation, etc.), and ENAV Convert to a corresponding property signal defined in the content (for example, convert a DVD status signal indicating that the currently used audio language is Japanese into a property signal that specifies the language used in ENAV as Japanese) .

ENAV Interpreting Unit Generally speaking, the ENAV interpreting unit 56 parses and interprets playback control information included in ENAV content obtained from a DVD video disc or ENAV content obtained from the Internet, etc. It has a function to move the playback unit E. As a language used for the reproduction control information, the markup language such as HTML / XHTML or SMIL described above may be used, or a script language such as ECMAScript or JavaScript may be used together with the markup language described above.

  The specific method for parsing and interpreting markup and scripts may be the same as the parsing and interpretation methods in known technologies such as HTML / XHTML, SMIL, ECMAScript, and JavaScript (the hardware to be used is The microcomputer described at the beginning of the description of FIG. However, the commands and variables described in the script are different because the control targets are different. In the playback control information used when the present invention is implemented, specific commands and variables related to playback of DVD video discs and / or ENAV contents are used. For example, a command for switching the playback content of a DVD video or ENAV content in response to a certain event is specific to markup or script in the playback control information.

  As other examples of commands and variables specific to markup and script in the playback control information, the size of the video from the DVD video playback unit R and / or ENAV playback unit E is changed (the command to change the size and the post-change command). Variable to specify the size) or to change its arrangement (commands to change the display position and variables to specify the coordinates after the change: When the display target overlaps on the screen, the overlap There is also a variable that specifies the vertical position relationship). Alternatively, the audio level from the DVD video playback unit R and / or ENAV playback unit E is changed (a command for changing the audio level and a variable for specifying the changed audio level), or the audio language to be used is selected ( There is also a command for instructing to change the voice language used and a variable for specifying the type of language after the change). There is also a user event control unit 54 that controls a user event (switching between a user event signal (a), a user event signal (b), and a user event signal (c)).

  Based on the playback control information markup and script commands / variables as exemplified above, the layout of the video to be displayed on an external monitor device (not shown), the video size, the video output timing, the video A “layout control signal” for controlling the output time and / or the sound volume level to be reproduced from an external speaker (not shown), the sound output timing, and the sound output time is sent from the ENAV interpreter 56 to the video / audio output controller 59. To be sent to.

Element decoder The element decoder 58 decodes data such as audio, still image, text, and moving image included in the ENAV contents, and an audio decoder, a still image decoder, a text decoder, and a moving image decoder are provided corresponding to the decoding target. Contains. For example, audio data in ENAV content encoded by MPEG1 is decoded by an audio decoder and converted into uncompressed audio data. Still image data encoded by MPEG or JPEG is decoded by a still image decoder and converted into uncompressed image data. Similarly, for example, moving image data encoded by MPEG2 is decoded by a moving image decoder and converted into uncompressed moving image data. The text data included in the ENAV content is decoded by a text decoder and converted into text image data that can be superimposed on a moving image or a still image. Video / audio data including the decoded audio data, image data, moving image data, and text image data as appropriate is sent from the element decoder 58 to the video / audio output control unit 59.

Video / audio output control unit The video / audio output control unit 59 selects the video / audio data decoded by the element decoder 58 and the video / audio data output from the DVD video reproduction unit R, or both. The video output control unit and the audio output control unit are included.

  The video output control unit 59 performs the function of selecting the video from the DVD video playback unit R or the video from the ENAV playback unit E, the size of each video, and / or the movement of the layout, Has a function to output. Specifically, a digital video mixer / switcher or the like can be used.

  Based on the “video / audio output control signal” output from the ENAV interface unit 55 and / or the “layout control signal” output from the ENAV interpretation unit 56, the video output control unit 59 in the ENAV playback unit E The video from the video playback unit R is output (full video mode), the video from the ENAV playback unit E is output (full ENAV mode), or the video from the DVD video playback unit R and the ENAV playback unit E Either of the images is combined and output (mixed frame mode).

As a function of the video output control unit 59,
(1) When the video is output only from the DVD video playback unit R and the video of the ENAV playback unit E is not output, the video output of the DVD video playback unit R is selected as the video of the DVD video player,
(2) When the video is output only from the ENAV playback unit E and the video of the DVD video playback unit R is not output, the video output of the ENAV playback unit E is selected as the video of the DVD video player,
(3) It also has a function of switching and selecting the video output of the DVD video playback unit R and / or the video output of the ENAV playback unit E according to the output method selected by the user from the user operation unit 53.

  Furthermore, with the layout control signal, video output is started / finished at a specified timing, video output is continued for a specified time, or video is output from a specified position (for example, chapter number or time information). Can be output.

  In addition, the audio output control unit 59 performs a function of selecting the audio from the DVD video playback unit R or the audio from the ENAV playback unit E, and the volume level change and / or mixing of the respective audios. It has a function to output the composite. Specifically, it is constituted by a digital audio mixer / switcher or the like.

  That is, the audio output control unit 59 is based on the “video / audio output control signal” output from the ENAV interface unit 55 and / or the “layout control signal” output from the ENAV interpretation unit 56. The audio output from R, the audio output from the ENAV playback unit E, or both the audio from the DVD video playback unit R and the audio from the ENAV playback unit E are combined and output. Is done. For example, when the audio output control unit 59 synthesizes and outputs both the audio from the DVD video playback unit R and the audio from the ENAV playback unit E, the audio output control unit 59 adjusts the level of each audio according to the description of the ENAV content. Mix and output audio data.

As a function of the audio output control unit 59,
(1) When the audio is output only from the DVD video playback unit R and the audio of the ENAV playback unit E is not output, the audio output of the DVD video playback unit R is selected as the audio data of the DVD video player,
(2) When the audio is output only from the ENAV playback unit E and the audio of the DVD video playback unit R is not output, the audio output of the ENAV playback unit E is selected as the audio data of the DVD video player,
(3) It also has a function of switching and selecting the audio output of the DVD video reproduction unit R and / or the audio output of the ENAV reproduction unit E according to the output method selected by the user from the user operation unit 53.

  Furthermore, with the layout control signal, audio output is started / finished at the specified timing, audio output is continued for the specified time, or audio is output from the specified position (eg chapter number or time information). Can be output.

Interface The Internet communication unit 62 is an interface for receiving ENAV content from a communication line such as the Internet, and sending playback control information in the received content to the ENAV interpreting unit 56 via the buffer unit 57. Data in the ENAV content (audio data, still image data, text data, moving image data, etc.) is sent to the element decoder 58 via the buffer unit 57.

  Further, as an interface function of the buffer unit 57, the ENAV playback unit E sends the playback control information in the ENAV content read from the DVD video disc to the ENAV interpretation unit 56 via the buffer unit 57, and is read. It has an interface function for sending data (audio data, still image data, text data, moving image data, etc.) in the ENAV content to the element decoder 58 via the buffer unit 57.

Setting of operation mode In the optical disc apparatus A according to the present invention, as shown in FIG. 4, in order to set the operation mode whether or not to select the enhanced DVD playback function and the Internet connection function, the parameter of the player configuration information is set. It is an extension. 4A is an enhanced DVD-compatible player, and FIG. 4B is an enhanced DVD-compatible player having an Internet connection function. The selection of each function is an operation mode, and parameters of the extended player configuration information are displayed. Can be set by changing

  That is, the optical disc apparatus A according to the present invention can reproduce the enhanced DVD video disc shown in FIG. 2 and the existing DVD video disc shown in FIG. Therefore, when the enhanced DVD video disc shown in FIG. 2 is reproduced, both the DVD video content and the ENAV content can be reproduced as the enhanced DVD video disc, or only the DVD video content can be reproduced as the DVD video disc. This may be the case where the user selects or the device selects.

  Therefore, in the existing DVD video player, when an enhanced DVD video disc is reproduced by expanding the parameter (P_CFG) indicating the player configuration information held in the player that is invalid as a reserved area to P_CFG_ENAV, It is possible to set an operation mode for playback as a video disc (playback based on ENAV content playback information) or as a DVD video disc (playback based on DVD content management information).

For example,
P_CFG_ENAV = 0b: DVD video disc playback
1b: Set like enhanced DVD video disc playback. In an existing player in which enhanced DVD video cannot be played back (ENAV content cannot be played back), this value is already set to 0b indicating a reserved area. As shown in FIGS. 4A and 4B, a player that can play enhanced DVD video (that can play ENAV content) is “0b” indicating playback as a DVD video disc, or an enhanced DVD video disc. Either “1b” to be reproduced can be set. As this value, a value set by the user using a device setting menu or the like of the player according to his / her preference is reflected as P_CFG_ENAV. Alternatively, the player may automatically switch the value of P_CDG_ENAV.

  The optical disc apparatus A according to the present invention includes the Internet communication unit 62, and can download the ENAV content from the dedicated server to the buffer unit 57 and reproduce (decode) the ENAV content. At this time, in order to select whether or not to connect to the Internet as the operation mode, the parameter (P_CFG) indicating the player configuration information held in the player is expanded to P_CFG_WEB to determine whether or not to connect to the Internet, or It is possible to determine whether or not there is an Internet connection function.

For example,
P_CFG_WEB = 0b: No Internet connection
1b: Set as if there is an Internet connection. As shown in (a) of FIG. 4, in an enhanced DVD-compatible player having no Internet connection function, “0b” indicating a reserved area is already set as an unused area, and this value is shown in (b). Thus, an enhanced DVD-compatible player having an Internet connection function can set either “0b” indicating no Internet connection or “1b” indicating the Internet connection. In this case, the player can set the value of P_CFG_WEB automatically, or the user can set the value manually. For example, the user determines the status of the network, selects whether or not to connect to the Internet from the device setting menu of the player, and reflects this in the value of P_CFG_WEB. Alternatively, the player automatically determines the network status and automatically switches the value of P_CFG_WEB. This is effective when the connection destination server cannot be connected for some reason (for example, the connection destination server is not activated).

(Operation of optical disk device)
The optical disc device according to the present invention has the above-described configuration, and each operation of the optical disc device having such a configuration will be described in detail below using a plurality of flowcharts.

Operation at Startup The operation at startup of the optical disc apparatus A according to the present invention will be described in detail with reference to the flowchart of FIG. In the flowchart of FIG. 5, first, when the DVD video player is activated and a disc is inserted (S10), the player determines whether to connect to the Internet among the parameters indicating the player configuration information held in the player. Is referred to (P_CFG_WEB) (S11).

  Here, in the optical disc apparatus A according to the present invention, at the stage of setting the initial operation mode, the above parameters are changed by setting an operation mode for determining whether or not to connect to the Internet. Furthermore, the Internet connection is provided with a temporary connection mode that is temporarily performed whenever a connection operation is performed, and a continuous connection mode in which the connection state is continuously performed when the power is turned on, The user can freely select this.

  At this time, if P_CFG_WEB = 0b, it is determined whether the inserted disc is a DVD video disc or an enhanced DVD video disc (S16). As shown in FIGS. 2 and 3, the DVD video disc has only DVD video content in the DVD video area, and the enhanced DVD video disc has DVD video content and ENAV content in other recording areas.

  As a result of the determination, in the case of a DVD video disc, management information in the DVD video disc is read in the same way as an existing DVD video player, and reproduction is started according to the first play PGC in the management information (S17).

  As a result of the determination, in the case of an enhanced DVD video disc, a parameter indicating whether to reproduce as a DVD video disc or an enhanced DVD video disc among parameters indicating player configuration information held in the DVD video player. The value of (P_CFG_ENAV) is referred to (S18).

  At this time, when P_CFG_ENAV = 0b, that is, when reproducing as a DVD video disc (S17), the management information in the DVD video disc is read as in the existing DVD video player as described above, Playback is started according to the first play PGC.

  When P_CFG_ENAV = 1b, that is, when playing back as an enhanced DVD video disc (S19), a predetermined startup file in the enhanced DVD video disc (for example, a file such as index.html file or index.sml directly under the DVD_ENAV directory) ) To play back.

  On the other hand, in the case where P_CFG_WEB = 1b in step S11, it is first determined whether the inserted disc is a DVD video disc or an enhanced DVD video disc (S12). As a result of the determination, in the case of an existing DVD video disc, since there is no ENAV content in the disc, the ENAV content (web content) downloaded from a specific web server via the Internet is reproduced (S15). The web content reproduction process in step S15 will be described later with reference to the flowchart of FIG.

  In addition, as a result of the determination, in the case of an enhanced DVD video disc, the parameter indicating the player configuration information held in the DVD video player indicates whether to reproduce as a DVD video disc or an enhanced DVD video disc. The value of the parameter (P_CFG_ENAV) is referred to (S13). At this time, when P_CFG_ENAV = 0b, that is, when playing back as a DVD video disc, the ENAV content (web content) downloaded from a specific web content distribution server via the Internet without playing back the ENAV content on the disc as described above. Is reproduced (S15).

  In step S13, when P_CFG_ENAV = 1b, that is, when playback is performed as an enhanced DVD video disk, a predetermined startup file in the enhanced DVD video disk (for example, an index.html file or index.sml directly under the DVD_ENAV directory). ) According to the file). That is, first, the startup file in the disc is read, and the ENAV content in the disc or the ENAV content downloaded from a specific web server via the Internet (herein, called web content for distinction) is reproduced (accordingly). S14).

-Playback operation of ENAV content including web content Next, the playback operation of ENAV content including web content in step S14 of Fig. 5 will be described with reference to the flowchart of Fig. 6.

  As described above, first, a startup file on the disc (for example, a file such as an index.html file or an index.sml directly under the root DVD_ENAV directory) is read (S22), and playback is performed accordingly. This start-up file is described in a markup language such as HTML / XHTML or SMIL, and a script language such as ECMA script or Java script. This file stores ENAV contents on the disk or on the web content distribution server S. Refers.

  If there is no web content playback request in the startup file (S23), the ENAV content on the disc is played back (S24). However, there is a web content playback request (S23), and the ENAV content on the web content distribution server S is stored in the disc, for example, address information in the startup file that is the markup / script language 31 that is the enhanced navigation content, If referring to the authentication information, the user event control unit 54 and the Internet communication unit 62 access the referring web content distribution server S. Then, the authentication work for downloading the web content is performed based on the authentication information stored in the startup file or the like, or the decrypted data of the content as described later (S25).

  This authentication process can be automatically performed without waiting for the user's operation when the disc is first inserted in the flowchart of FIG. Accordingly, the user automatically downloads ENAV content from the web content distribution server S via the Internet by instructing playback of the content on the disc, and the DVD content on the disc as described later with reference to FIG. It is also possible to obtain a video in which the ENAV content of the web is combined with the ENAV content.

  If the authentication is successful, the optical disc apparatus compares the ENAV content on the disc with the ENAV content on the web server. For example, the time stamp of each file or the version number of each file is used to compare which file is newer.

  If the web content is not newer than the ENAV content on the disc (S26), the ENAV content on the disc is reproduced without downloading on the disc (S27). If it is new, download operation of the referenced web content is performed (S28), and when the download is completed (S29), the downloaded web content is reproduced (S30).

  In the authentication operation in step S25, if the authentication is not successful, the ENAV content recorded on the disc is reproduced instead (S31, S33). At this time, if the ENAV content to be played instead does not exist on the disc, an error message or the like is displayed to inform the user that the ENAV content cannot be played (S32).

  Also, in the download operation, if the download fails for some reason (connection is interrupted, etc.), the ENAV content recorded on the disc is reproduced instead (S33). If the ENAV content to be played instead does not exist on the disc, an error message or the like is displayed to inform the user that the ENAV content cannot be played (S32).

  FIG. 7 shows a configuration example of ENAV contents including web contents. ENAV content is data for controlling playback of ENAV content described in markup languages such as HTML / XHTML and SMIL, and script languages such as ECMA scripts and Java scripts, image data such as moving images and still images, and audio data Etc. In order to control the reproduction of ENAV content, the data can refer to the DVD video content itself in addition to the data constituting the ENAV content.

  For example, in FIG. 7, a file for activation is recorded on a disk, and the value of the internal parameter P_CFG_WEB of the player is referred to this file. When P_CFG_WEB = 0b, Internet connection (web connection) The data for controlling the playback recorded on the disc is read, and when P_CFG_WEB = 1b, the Internet connection (web connection) is performed, and the data for controlling the playback on the web content distribution server S is read. Downloading and reading is described in a script language or the like.

  As a result, a player in which P_CFG_WEB = 0b (existing DVD player, enhanced DVD-compatible player that does not have an Internet connection function, enhanced DVD-compatible player that has an Internet connection function but does not operate the Internet connection function) Reads data for controlling playback recorded above. The ENAV contents referred to by this data are all recorded on the disc and can be reproduced.

  On the other hand, a player in which P_CFG_WEB = 1b (enhanced DVD-compatible player having an Internet connection function and an Internet connection function operating) downloads and reads data for controlling playback on the web content distribution server S. . The ENAV content referred to by this data refers to the ENAV content on the web content distribution server S or the ENAV content on the disc. By placing the ENAV content on the web, a player having an Internet connection function can always read the latest data. At this time, for data that has not been changed, data on the disc is read in accordance with data for controlling reproduction.

-Web content reproduction operation Next, the web content reproduction operation in step S15 of FIG. 5 will be described. Here, it is assumed that the DVD video disc does not have ENAV content on the disc or the enhanced DVD video disc in which ENAV content exists, but the ENAV content on the disc is not used.

  In the flowchart of FIG. 8, first, the optical disc apparatus A accesses the web content distribution server S in which content corresponding to the inserted DVD disc exists. At this time, as a method for specifying the web content distribution server S, there are the following cases.

(1) When the user manually inputs information (URL address, IP address, etc.) of the web content distribution server S to be accessed using the device setting menu of the optical disk device (S41).

(2) Web server information in which the optical disk device exists at a specific location in the disk (for example, video management information VMG21 in the DVD video area 13 of the DVD video disk or ENAV in the other recording area 14 of the DVD video disk) When referring to content such as a URL address or an IP address stored in a startup file or the like in the markup / script language 31 (S42).

(3) The optical disc apparatus first accesses a specific database server B as shown in FIG. Then, using the DVD disc information (for example, DVD video disc management information VMG21 and a part of the video title set 22 which is object information), the addresses of web servers (web content distribution servers) S1 to S3 corresponding to the disc. Is specified (S43).

  The optical disc apparatus A accesses the web content distribution server S thus identified (S44), and performs an authentication operation for downloading the web content with the accessed web content distribution server S. If the authentication is successful (S45), the ENAV contents download operation is started from the server S (S46). When the download is completed (S47), the ENAV content can be reproduced (S48).

  If the authentication fails or if the download operation fails (connection is interrupted, etc.), the user is notified as an error message that the ENAV content cannot be reproduced (S49).

-Playing back and synthesizing ENAV content The downloaded ENAV content can be displayed alone or in combination with DVD content in the disc or ENAV content in the disc. FIG. 9 is an explanatory diagram showing an example of display of optical disc content and ENAV content from the web performed by the optical disc apparatus according to the present invention.

  In FIG. 9, (a) is a screen showing video content or ENAV content D of an optical disc, (b) is a video distribution of ENAV content W of web distribution, and video content or ENAV content D of optical disc is a small window. (C) is a screen in which ENAV content W of web distribution is shown in a small window with video content or ENAV content D of an optical disc as a background, and (d) is a screen of ENAV content W of web distribution. It is the screen that was made. That is, when the download is completed in step S46 of FIG. 8 and the ENAV content is reproduced in step S48, at least the above four cases can be displayed.

  That is, the ENAV content distributed from the web content distribution server S through the Internet communication unit 62 is decoded by the ENAV interpretation unit 56 through the buffer unit 57, and an ENAV command corresponding thereto is supplied to the ENAV interface unit 55. At the same time, it is supplied from the buffer unit 57 to the element decoder 58 and supplied to the video / audio output control unit 59 as video / audio data.

  On the other hand, the user event control unit 54 receives the operation signal from the user operation unit 53 or operates the output mode selection switch 102 of the remote controller 101 described above (a), (b), (c). , (D), the control signal is supplied to the video / audio output control unit 59 in order to perform switching. The video / audio output control unit 59 appropriately synthesizes the video / audio data from the DVD video playback unit R and the video / audio data from the element decoder 58 to produce the synthesized video of (b) and (c). Generate. Then, in accordance with a control signal from the user event control unit 54, desired video data and audio data are selectively output.

  Here, it is also possible to output either ENAV content on the disc or ENAV content distributed on the web in response to the operation signal without using the DVD content on the disc.

  Thus, in the optical disc apparatus A according to the present invention, not only DVD content and ENAV content stored on the optical disc d, but also ENAV content distributed from the web content distribution server S via the Internet, or It can be displayed in combination with DVD content or ENAV content on the disc. At this time, as will be described later, it is an access process to the web content distribution server S based on the address information stored in the optical disk, and an authentication process is performed based on the information stored in the optical disk. ENAV content distribution cannot be obtained.

  As a result, according to the present invention, high-value-added enhanced navigation supplied from the web content distribution server S via the communication line in conjunction with not only the information in the disc but also the high-security is ensured. The present invention provides an optical disc apparatus, an optical disc processing method, and an optical disc that can also use content.

Personal Authentication and Purchase Procedure Further, according to the present invention, when the web content is reproduced in step S48 in the flowchart of FIG. 8, the remote controller 101 shown in FIG. 15 or the IC card interface 63 shown in FIG. The personal information can be read by inserting the IC card 108 storing the information for personal authentication through the interface provided in FIG. As a result, personal authentication processing can be performed very easily with respect to the web content distribution server S. For example, the currently reproduced DVD shown as one of the ENAV contents shown in FIG. The purchase procedure can be easily performed on the related DVD shopping information.

  Therefore, the user automatically connects to the Internet on the basis of the address information in the disc by loading the disc detector 61 of the optical disc apparatus A according to the present invention in order to reproduce the optical disc. Since the ENAV content distributed from the web content distribution server S is downloaded after passing through the authentication process, for example, as shown in FIG. 9C, a composite image of the content related to the video being reproduced is viewed. Can do. Thereafter, based on the information for personal authentication from the IC card 108 described above, it is possible to access the screen of the related disk purchase procedure very easily, for example, as shown in FIG. The purchase procedure can be performed.

ENAV Content FIG. 10 shows a configuration example of ENAV content (web content) acquired from the web content distribution server S. ENAV content is data for controlling playback of ENAV content described in markup languages such as HTML / XHTML and SMIL, and script languages such as ECMA scripts and Java scripts, image data such as moving images and still images, audio It consists of data. In addition to the data constituting the ENAV content, the data for controlling the reproduction of the ENAV content can refer to the data of the DVD video content itself. In this example, a DVD video disk or an enhanced DVD video disk that refers only to the DVD video area is assumed. Therefore, data for controlling playback is recorded on the ENAV content acquired from the web content distribution server S or on the disk. Reference is made only to the DVD video content.

Authentication Process The procedure of the authentication process between the optical disk device A with an Internet connection function and the web content distribution server S that distributes ENAV contents will be described with reference to the flowchart showing the authentication process in FIG. This authentication process is shown in step S25 of FIG. 6, step S45 of FIG.

  In this flowchart, first, the optical disc apparatus A issues a distribution request to the web content distribution server S that distributes the specified ENAV content (S51). The web content distribution server S that has received the distribution request (S52) performs an authentication procedure to check whether the optical disc apparatus A that requested the distribution is requested from a regular DVD video disc or an enhanced DVD video disc. The web content distribution server S requests check data (authentication information) for authentication (S52).

  Here, as an example of the check data (authentication information), it is possible to use a part of the data of the DVD video disc / enhanced DVD video disc. For example, a part of the control data in the lead-in area 11 or a part of the data of the video management information VMG21 can be used. Further, most of the DVD video contents are data-encrypted, and by using a part of the DVD video contents data after decrypting the data of the DVD video contents as the check data, the regular DVD player and the regular DVD are used. The authentication information from the video disc / enhanced DVD video disc can be proved. Accordingly, in the optical disc apparatus, the encrypted information of the DVD disc (this may be the video title set 22 of the DVD video content, the moving image data 32 of the ENAV content, or others. The decrypted data may be transmitted to the web content distribution server S as check data (authentication information) (S53).

  The web content distribution server S analyzes the check data for authentication sent from the optical disc apparatus A, and if the data can be recognized as valid, it identifies the title of the DVD video disc / enhanced DVD video disc. A request for check data is made (S54). For example, as an example, this check data includes a part of the control data in the lead-in area 11 as described above, a part of the data of the video management information VMG21, and the data of the DVD video content after decryption. A part is transmitted (S55). The check data can also be used as the check data for authentication.

  The web content distribution server S analyzes the check data for specifying the title sent from the optical disc apparatus A, and uses the database etc. of the web content distribution server S to record the DVD video disc / The title of the enhanced DVD video disc is specified. Then, the web content distribution server S distributes the ENAV content corresponding to the title of the DVD video disc / enhanced DVD video disc to the optical disc apparatus A (S56). The optical disc apparatus A stores the received ENAV content in the internal buffer unit 57 (S57). At this time, the ENAV content to be distributed may be the encrypted ENAV content or the already decrypted ENAV content. However, when the encrypted ENAV content is distributed, it is necessary to decrypt it with the optical disc apparatus A. For example, the ENAV content on the buffer is decrypted using the key information recorded on the disc (S57). Thereafter, the decrypted ENAV content is combined with the DVD video content or is reproduced and output alone.

  Here, the encrypted content in the disc is decrypted and used as authentication information, that is, check data. However, in addition to this, dedicated authentication information may be provided for DVD content or ENAV content in the disc. If security authentication is possible using information stored on the disk, security can be ensured in the same manner.

Encryption / Decryption Processing Here, encryption / decryption in step S57 in FIG. 12 will be described with reference to FIG. The ENAV content placed on the web content distribution server S is encrypted in advance (as key information) using the data of the corresponding DVD video disc / enhanced DVD video disc. As the key information, for example, a part of the control data in the lead-in area 11, a part where the data of the video management information VMG21 is not encrypted, a part where the video title set VTS22 is not encrypted, etc. Can be used. As a result, even if the optical disc apparatus A receives the ENAV content, the ENAV content cannot be decoded and cannot be reproduced unless a regular DVD video disc / enhanced DVD video disc is inserted.

  The optical disc apparatus A that has received the encrypted ENAV content stores the ENAV content in the buffer unit 57 and then performs decryption work. If the DVD video disc / enhanced DVD video disc corresponding to the received ENAV content is inserted in the optical disc device A, the key information of the DVD video disc / enhanced DVD video disc used for encryption is stored in the optical disc device. A must have it. The optical disc apparatus A decrypts the encrypted ENAV content stored in the buffer unit 57 using the key information, and stores it in the buffer unit 57 again. Thereby, ENAV content can be distributed from the content distribution server S to the optical disc apparatus A while maintaining security.

-Always-Authentication Process Next, a case will be described in which the above-described authentication process is automatically and repeatedly performed every predetermined cycle to stop the distribution of the recorded content after the optical disk is detached. That is, the authentication process is performed only once by repeatedly performing the steps of the distribution request S51, the check data request S52, the decryption data transmission S53, the data pattern analysis, and the authentication process completion S54 in FIG. Instead, it is always possible to monitor that the optical disk is stored. By such processing, it is possible to secure further security by making it impossible to obtain the recorded content including ENAV content afterwards by making the result of the authentication processing inappropriate when the optical disk is detached. it can.

  Furthermore, according to the method shown in the flowchart of FIG. 14, after the authentication process is completed, if it is confirmed that the disc has been ejected by the operation of the user or the like (S61), the user event control unit 54, etc. Therefore, it is assumed that the authentication state has been interrupted, and the connection state with the web content distribution server S is interrupted (S62). Then, it is possible to perform DVD video content reproduction (S63), to reproduce ENAV content not including web content (S64), or to continue only web connection that does not require authentication processing. Become.

  Also with the method shown in FIG. 14, it is possible to ensure the security of the distributed ENAV content, in the same manner as the method of repeating the authentication process every predetermined cycle.

  As described above in detail, according to the optical disc device and the optical disc according to the present invention, not only the information stored in the disc but also the delivery from the web content delivery server S via the communication line in conjunction with the information in the disc. Various kinds of information such as the ENAV contents that have been made can be combined with the DVD contents or reproduced alone. In addition, since access processing and authentication processing are performed based on information stored in the disk, high security is ensured because a person who does not have the disk cannot obtain distribution information. It is possible to distribute ENAV contents or the like which are high-level extension information.

  With the various embodiments described above, those skilled in the art can realize the present invention. However, it is easy for those skilled in the art to come up with various modifications of these embodiments, and have the inventive ability. It is possible to apply to various embodiments at least. Therefore, the present invention covers a wide range consistent with the disclosed principle and novel features, and is not limited to the above-described embodiments.

1 is a block diagram showing an example of the configuration of an optical disc apparatus according to the present invention. The figure which shows an example of a structure of the optical disk which the optical disk device based on this invention handles. The figure which shows an example of the optical disk which does not have the characteristic of the optical disk which the optical disk device based on this invention handles. The figure which shows an example of the internal parameter which the optical disk apparatus based on this invention has. 5 is a flowchart showing an example of an operation at the time of starting the optical disc apparatus according to the present invention. 6 is a flowchart showing an example of ENAV content playback processing including web content in the optical disc apparatus according to the present invention. The figure which shows an example of a structure of the ENAV content which the optical disk device based on this invention handles. 6 is a flowchart showing an example of web content reproduction processing of the optical disc apparatus according to the present invention. Explanatory drawing which shows an example of the display of the content of the optical disk which the optical disk apparatus based on this invention, and ENAV content from a web. The figure which shows an example of a structure of the web content which the optical disk device concerning this invention handles. The figure explaining the connection to the web content delivery server via the database server by the optical disk apparatus which concerns on this invention. The flowchart which shows an example of communication with the web content delivery server of the optical disk device which concerns on this invention. Explanatory drawing explaining the encryption / decryption process of ENAV content of the optical disk apparatus based on this invention. 6 is a flowchart showing an example of an optical disc ejection process of the optical disc apparatus according to the present invention. The figure which shows an example of the controller of the optical disk apparatus based on this invention.

Explanation of symbols

A ... DVD video player, R ... DVD video playback unit, E ... ENAV playback unit, 53 ... user operation unit, 61 ... disc detection unit, 62 ... Internet communication unit, 63 ... IC card interface, 101 ... remote control, 108 ... IC card.

Claims (4)

In an optical disc apparatus for reproducing video or audio information from an optical disc,
A storage unit for storing connection information indicating whether or not to connect to the outside via a communication line;
When the optical disc is inserted, the type information recorded on the optical disc and the connection information stored in the storage unit are referred to, and when these indicate external connection, the information is recorded on the optical disc. Communication means for communicating with the distribution server on the communication line according to the address information provided;
Authentication information transmitting means for reading authentication information for disk authentication from the storage area of the optical disk and transmitting it to the distribution server in response to a request from the distribution server by communication of the communication means;
When distribution of the extended content is permitted by the disk authentication process in the distribution server, download means for downloading the extended content from the distribution server;
A reproduction unit that reproduces and outputs the extended content obtained by the download in synchronization with video or audio information read from the optical disc;
An optical disc apparatus comprising: interruption means for interrupting a connection state with the distribution server when the optical disc is ejected.   2. The optical disc apparatus according to claim 1, wherein the authentication information handled by the authentication information transmitting means is video content. An optical disc processing method,
Connection information indicating whether or not to connect to the outside via a communication line is stored in the storage area,
When the optical disk is detected, the type information recorded on the optical disk and the connection information are referred to, and when these indicate the connection with the outside, on the communication line according to the address information recorded on the optical disk Communicate with the distribution server,
In response to a request from the distribution server, authentication information for disc authentication and management information for title identification are read from the storage area of the optical disc and transmitted to the distribution server,
When distribution of the extended content is permitted by the title specifying process and the disc authentication process in the distribution server, the extended content is downloaded from the distribution server,
The extended content obtained by the download is reproduced in synchronization with video or audio information read from the optical disc,
An optical disc processing method for processing to interrupt a connection state with the distribution server when the optical disc is ejected.   4. The optical disc processing method according to claim 3, wherein the authentication information is video content.

Images