JP2008187253A - Reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reproducing device with a function of notifying a user of whether a connection is appropriate or not through a simple processing. <P>SOLUTION: The reproducing device 1 comprises: a readout unit 101 to read data out of a disk 11; a decoding unit 102 to decodes compressed data; a synthesizing unit 103 to synthesize data; a D/A converting 104 to convert digital data into analog data; a decision unit 105 to decide which data is to be output based upon control information 30; an alarm generating unit 106 to generate an alarm tone etc.; a switch 107 to selectively output a signal from the readout unit 101 or alarm generating unit 106 according to a control signal from the decision unit 105; and an output terminal 10 to output the signal to an external device. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a playback apparatus that plays back and outputs video and / or audio signals recorded on a medium. In particular, the present invention relates to a playback apparatus that can indicate in a simple manner whether or not a connection state with an output device is appropriate when outputting video and / or audio signals through an output device including an AV amplifier.

  Current AV devices (for example, players and AV amplifiers) include a plurality of input / output systems such as analog and digital for connection of video (video) or audio (sound) signal lines. In addition, even in digital, a plurality of input / output systems having different standards are often provided. For example, a BD (Blu-ray Disc) player that is a next-generation optical disc standard has a plurality of output systems such as analog, S / PDIF (Sony / Philips Digital Interface), and HDMI (High-Definition Multimedia Interface) for audio output. It is envisaged to prepare. In such a situation, it is not easy for an unfamiliar user to correctly connect an AV device.

As measures for appropriately connecting, as disclosed in Patent Document 1, a signal state is detected to detect an erroneous connection and notified to the user, or as disclosed in Patent Document 2. In some cases, the lines to be connected are unified into one, the input signal is automatically determined by internal processing, and the lines are appropriately connected.
Japanese Patent Laid-Open No. 3-66089 JP 2003-169389 A

  The method of Patent Literature 1 detects the presence or absence of a signal to detect an erroneous connection, but has no effect on whether or not the signal is a correct signal. For example, when the detected signal cannot be properly reproduced, it cannot be detected. Further, the method including the automatic discrimination processing of the input signal as in Patent Document 2 is very heavy.

  Alternatively, it is possible for the user to check whether the device is correctly connected by checking a manual or the like (the same applies to the online manual), but it cannot be denied that the user is burdened. In addition, whether or not the connection is appropriate depends on the content (for example, a situation where an appropriate connection is made for one content but not an appropriate connection for another content), and even if the connection is incorrect When it is possible to reproduce the content, it is difficult for the user to know whether or not the connection is really appropriate. As a result, there is a high possibility that the user will watch with an incorrect connection without noticing.

  The present invention has been made to solve the above problems, and its purpose is to provide a playback apparatus having a function of notifying the user of whether or not the connection is appropriate with a simple process. is there.

  According to one aspect of the present invention, is it possible to output content data in a predetermined manner based on management information for content data including at least one of video and audio and data to be played that includes management information related to the content data? A determination means for determining whether or not, a warning generation means for generating a warning signal notifying that output is impossible, and a plurality of output terminals with different output methods, and outputting content data from each of the plurality of output terminals Output means, and the output means outputs a warning signal from at least one predetermined output terminal that cannot be output in a predetermined manner among the plurality of output terminals in accordance with a determination result that the determination means does not output. Output.

  Preferably, the apparatus further includes reading means for reading data to be reproduced recorded on the medium.

  Preferably, the output means includes a switch means for selecting any one of the content data or the warning signal given from the warning generation means and giving it to a predetermined output terminal. The warning signal is selected according to the determination result.

  Preferably, the content data is encoded data, and further includes a decoding unit for decoding the encoded data.

  Preferably, the content data is composed of main content including at least one of video or audio and sub-content including at least one of video or audio that is reproduced by being superimposed or synthesized on the main content, and the predetermined mode is: That is, the main content and the sub-content are output after being superimposed or synthesized.

  Preferably, at least one of the main content and the sub-content is encoded data, and further includes a decoding unit for decoding the encoded data.

  Preferably, the content data is acoustic data, and the predetermined output terminal includes S / PDIF.

  Preferably, the output unit includes a warning synthesis unit for synthesizing the content data and the warning signal given from the warning generation unit and giving the synthesized signal to a predetermined output terminal, and the warning synthesis unit determines that the determination unit cannot output. Depending on the result, the content data and the warning signal are combined and given to a predetermined output terminal.

  Preferably, the content data is video data, and the predetermined mode is to output the video data from a predetermined output terminal while maintaining the resolution of the video data.

  According to the present invention, it is possible to notify the user whether or not the connection is appropriate by simple processing. Accordingly, it is possible to cause the user to determine whether or not the connection is appropriate without imposing an extra burden, and to prompt the user to change to an appropriate connection when it is inappropriate.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

[Embodiment 1]
FIG. 1 is a diagram showing an AV system 100 including a playback device 1 according to the first embodiment.

The AV system 100 will be described with reference to FIG.
The AV system 100 includes a playback device 1 and an AV amplifier 21 connected to the playback device 1. The AV amplifier 21 is connected to the speaker 22.

  The output terminal 10 of the playback device 1 includes an S / PDIF output terminal 10a, an HDMI output terminal 10b, and an analog output terminal 10c. The input terminal 20 of the AV amplifier 21 includes an S / PDIF input terminal 20a, an HDMI input terminal 20b, and an analog input terminal 20c. As shown in FIG. 1, the output terminal and the input terminal are respectively connected to corresponding terminals.

  In the first embodiment, when the playback apparatus 1 (player) and the AV amplifier 21 can be connected by audio through a number of lines, an inappropriate connection is made such that the content is not played back as intended by the content provider. A method for warning that the state is in a simple manner and a player that implements the method are shown.

  More specifically, the simple method emits a warning sound only to a line in an inappropriate connection state to prompt the user to make a correct connection. For this reason, in the AV system 100 of FIG. 1, only the audio connection system is illustrated, and the line connection system relating to the video output device, the video signal, and the control signal such as a monitor is not illustrated. Of course, in an actual AV system, video line connection and control line connection may be made in addition to the illustrated audio line connection. Further, in the AV system 100 of FIG. 1, for the sake of simplicity, one connection is illustrated by one connection. However, for example, one connection is made by connecting two L / R lines. In addition, one connection may be composed of a plurality of connections. Further, in the AV system 100 of FIG. 1, there is illustrated that there is one connection (a pair of input terminals and output terminals) for each signal type, but, for example, two types of HDMI are provided. On the other hand, a plurality of line connection systems may be provided.

  The AV amplifier 21 normally selects any one signal connected in a line and outputs the selected signal to the speaker 22. This selection operation may be performed manually, or the presence / absence of each input signal may be determined, and the AV amplifier 21 may select one with the highest priority and automatically switch it.

  In the first embodiment, it is assumed that the playback apparatus 1 is a disc player capable of playing back BD and DVD (Digital Versatile Disc), and there are different optimum audio output lines for each recorded content or for each medium. Will be described.

  One of the characteristic functions of the BD, which is the next-generation optical disc standard, includes an extended menu function and a game function using the Java (registered trademark) language. By using these functions, the BD can record, for example, a pop-up menu superimposed on AV content including multi-channel audio, an interactive game, a menu screen using multi-channel audio data as BGM, and the like. Furthermore, when a sound effect (click sound or the like) corresponding to each menu item or game operation is assigned, the BD player that reproduces the content responds according to selection of the menu item or game operation input. It has a function of synthesizing sound effects with content audio and BGM and outputting them.

  However, when the BD player has an S / PDIF output, the BD standard allows only the content audio and BGM to be output without performing the above synthesis on the S / PDIF. S / PDIF has only a bandwidth for transferring LPCM (Linear PCM) audio data of up to two channels, and it is necessary to compress and transfer multi-channel audio of three or more channels. For this reason, S / PDIF is actually used for direct transfer of a compressed format such as AC-3 (R) read from a disk, and it is substantially difficult to synthesize another audio such as a click sound. (If the player has the ability to recompress, the AC-3 audio signal read from the disc is once decoded, then the click sound is synthesized on the multi-channel LPCM signal, and then recompressed. It is possible to put it on S / PDIF as AC-3 data). In order to listen to additional audio such as click sound synthesized with content audio or BGM, it may be heard through another analog output or HDMI output.

  From the above, in the BD player, depending on the content to be played back (that is, depending on whether the content includes a pop-up menu with sound effects or an interactive game), there are cases where appropriate playback is not performed with S / PDIF. Here, “appropriate reproduction” refers to reproduction as intended by the content provider. For example, in the above case, the content audio and the click sound are synthesized and reproduced as intended by the provider. Similarly, “appropriate connection” refers to connection of input / output terminals that is played back as intended by the content provider. Also, in the disc player that plays back the BD and DVD assumed in the first embodiment, appropriate playback is always possible on the DVD, but appropriate playback is performed depending on the media so that proper playback may not be performed on the BD. Whether or not it changes.

  As described above, in the playback device 1 according to the first embodiment, when appropriate playback is not performed via a specific connection (S / PDIF in the above), depending on content or media, it is not an appropriate connection. The purpose is to notify the user. Therefore, of course, the types of players to which the present invention can be applied and the types of media to be played back are not limited to the above. For example, built-in recording media such as HDD (Hard Disk Drive) and flash memory, SD (Secure Digital The present invention is also applicable to a removable recording medium such as a memory card, their players, and combinations thereof if there is a situation where the optimum connection system differs depending on the content or media. Needless to say. Furthermore, the present invention can be applied not only to a player for reproducing the content recorded on the recording medium, but also to a player for reproducing the content given by streaming communication.

FIG. 2 is a functional block diagram showing a schematic configuration of the playback apparatus 1 according to the first embodiment.
With reference to FIG. 2, a schematic configuration of the playback apparatus 1 according to the first embodiment will be described.

  The playback device 1 includes a reading unit 101 for reading data from the disk 11, a decoding unit 102 for decoding compressed data, a combining unit 103 for combining data, and converting digital data into analog data A D / A conversion unit 104 for determining the data, a determination unit 105 for determining which data to output based on the management information 30, a warning generation unit 106 for generating a warning sound and the like, and a determination unit 105 A switch 107 for selectively outputting a signal from the reading unit 101 or the warning generation unit 106 according to a control signal from the output terminal 10 and an output terminal 10 for outputting the signal to an external device. The output terminal 10 includes an S / PDIF output terminal 10a, an HDMI output terminal 10b, and an analog output terminal 10c. The switch 107 and the output terminal 10 function as the output unit 108.

  The reading unit 101 reads data from the disk 11 that is a recording medium and supplies the data to each processing unit. In the first embodiment, audio data of AV content (content audio 32 in FIG. 2) and its management information 30 from the disk 11 and additional content audio data (such as a pop-up menu or a game) exist from the disc 11 (see FIG. 2). In FIG. 2, the click sound 34) is read out. Here, the management information 30 includes media information indicating the type of disc (for example, information indicating whether the disc is a BD or a DVD), and content information indicating the content of the content (for example, additional content ( For example, information indicating whether or not a game is attached) is included.

  The decoding unit 102 receives and decodes multi-channel content compressed audio data (for example, AC-3 data) read by the reading unit 101, and decodes uncompressed multi-channel audio data (for example, multi-channel LPCM data). This is given to the synthesis unit 103.

  The synthesizing unit 103 synthesizes the decoded content audio data and the click sound of the additional content. The multi-channel audio obtained by the synthesis is output via the HDMI output terminal 10b. Similarly, multi-channel audio data is supplied to the D / A converter 104.

  The D / A conversion unit 104 converts the digital multi-channel audio synthesized by the synthesis unit 103 into analog multi-channel audio. Then, the converted analog audio is output via the analog output terminal 10c. Note that either synthesis or D / A conversion may be performed first. For example, contrary to FIG. 2, the decoded content audio and click sound are D / A converted, respectively, and a digital signal set and an analog signal set are combined to each other via the HDMI output terminal 10 b and the analog output terminal 10 c. You may make it output.

  As described above, from the HDMI output terminal 10b and the analog output terminal 10c, the multi-channel audio signal synthesized including the click sound obtained from the decoding unit 102 through the D / A conversion unit 104 is output.

  On the other hand, from the S / PDIF output terminal 10a, compressed audio data or a warning signal of the content selected by the switch 107 that has received the control signal of the determination unit 105 is output as described below.

  The determination unit 105 outputs the audio data (compressed data) of the content to the S / PDIF output terminal 10 a based on the management information 30 read by the reading unit 101 or the warning generated by the warning generation unit 106. A control signal instructing whether to output sound is supplied to the switch 107.

  As described above, assuming that the content to be played is BD content and attached content such as a sound effect game that can be played in synchronization with the viewing of the content is attached, in S / PDIF, In some cases, other audio signals such as a click sound are not synthesized with the content audio and output. In other words, in an environment where audio is output via S / PDIF, appropriate reproduction (as desired by the content provider) is not performed. In order to appropriately output the content sound and the click sound together, it is necessary to output via analog or HDMI. Note that whether or not there is additional content (audio signal) in the BD content depends on the content, so it is difficult for the user to know whether or not the BD content can be viewed in the correct form (notice that it is viewed incorrectly). . In particular, in a use environment where a large number of AV equipment including a BD player is owned and the connection to the AV amplifier is frequently reconnected, a problem of erroneous connection occurs regularly.

  Therefore, the determination unit 105 determines from the management information 30 what kind of content is to be played, and gives a control signal to the switch 107 to make or not issue a warning sound. There is a click sound to be synthesized, and it is determined that the output by S / PDIF is not appropriate when the BD content accompanied by the additional content is reproduced. Accordingly, the determination unit 105 determines whether additional content accompanied by a click sound is attached to the content from the content information included in the management information, and sends a control signal to the switch 107. It is also possible to switch from the media information included in the management information 30 by detecting whether the disc on which the content is recorded is a BD or a DVD. In BD content, there is information indicating whether or not there is additional content accompanied by a click sound in the playlist information indicating the playback order / reproduction location information of the content. is there.

  The warning generation unit 106 generates a warning sound (warning signal sound, warning voice message, etc.) that is output when the determination unit 105 determines that a warning sound is output via the S / PDIF. In the first embodiment, in order to notify the user that there is a possibility that playback cannot be performed correctly during BD playback, a warning “Contents cannot be played back as intended unless connected to an analog output terminal or an HDMI output terminal”. Generate audio. And it outputs to S / PDIF and prompts the user to change the connection. Of course, any warning may be used as long as the content prompts the user to pay the same attention. For example, a warning signal sound other than sound such as a beep sound may be used.

  Based on the control signal from the determination unit 105, the switch 107 selectively outputs either the audio of the content or the warning sound to the S / PDIF. The warning sound described above is output until the user performs a release operation (forcibly switching the switch 107 to the content audio side), or is automatically stopped after being issued for a certain period (the switch 107 is set to the content audio side). May be automatically switched). Alternatively, the warning sound may be output periodically by switching periodically. If the line is already connected and there is no need for confirmation (including the case where S / PDIF is used after knowing that an appropriate output is not made to S / PDIF), switch 107 is set to the content audio side. It is also possible to lock it so that there is no warning sound.

  Alternatively, instead of the switch 107, a conversion unit (not shown) that decodes the content audio 32 (multi-channel audio), down-converts it into a 2-channel LPCM signal, and outputs it, and a warning generation unit 106 for the down-converted 2-channel content audio A synthesizing unit (not shown) for synthesizing the warning sound (two channels) generated in step S1 may be provided. As a result, it is also possible to output 2-channel audio data obtained by synthesizing the warning sound and content audio to S / PDIF (S / PDIF has a bandwidth for transferring 2-channel LPCM audio data). Transferable). In this case, it is transferred as 2-channel audio data only when a warning sound is synthesized.

  Next, an audio output operation example of the playback apparatus 1 in the AV system 100 will be described.

  FIG. 3 is a diagram showing an audio output state when the playback apparatus 1 and the AV amplifier 21 are connected by only one of S / PDIF, HDMI, and analog lines.

  FIG. 4 is a diagram showing an audio output state when the playback apparatus 1 and the AV amplifier 21 are connected by any two lines of S / PDIF, HDMI, and analog.

  FIG. 5 is a diagram showing an audio output state when the playback apparatus 1 and the AV amplifier 21 are connected by all lines of S / PDIF, HDMI, and analog.

  With reference to FIGS. 3 to 5, the connection through which the audio signal is output to the speaker 22 when the audio apparatus is connected to the playback apparatus 1 and the AV amplifier 21 in the AV system 100 will be described. It is assumed that the playback device 1 does not have a function for determining whether or not each connection is connected. That is, the playback apparatus 1 does not selectively perform whether or not to output an audio signal to each line, and a corresponding audio signal is output from the playback apparatus 1 to each line connected to the AV amplifier 21. Shall be.

  In a conventional playback device (player), the same audio signal (however, no click sound is superimposed on S / PDIF) is output to all of S / PDIF, HDMI, and analog. On the other hand, in the playback device 1 of the present invention, the point is that only the output of S / PDIF is different (a warning sound is output). For this reason, in FIGS. 3 to 5, the warning sound is output and transferred only to the S / PDIF using a double line. On the other hand, HDMI and analog connection to which no warning sound is transferred are illustrated using a single line. A line in which input / output terminals are not connected by a line indicates a line that is not connected.

  In the AV amplifier 21, as described above, one input signal is output to the speaker 22 depending on whether the user performs a selection operation or performs automatic determination. In the examples of FIGS. 3 to 5, it is assumed that the output is automatically selected in the priority order of HDMI> analog> S / PDIF. That is, when all lines are connected, HDMI is given priority as a correct connection, and an audio signal obtained via the HDMI terminal is output to the speaker 22.

  3A is a diagram showing a case where S / PDIF is connected, FIG. 3B is a diagram showing a case where HDMI is connected, and FIG. 3C is a diagram showing a case where analog is connected. It is.

  In this case, in the playback apparatus 1 according to Embodiment 1, a warning sound is output to the speaker 22 only when only S / PDIF is connected, as shown in FIG. That is, in the state where only HDMI or analog is connected, the content is played back as usual without warning. And only when it passes through S / PDIF, a warning can be received and a user can be prompted to switch to an appropriate connection.

  In FIG. 4, FIG. 4A shows a case where non-HDMI is connected, FIG. 4B shows a case where non-analog is connected, and FIG. 4C is a case where other than S / PDIF is connected. FIG.

  4A and 4B, the S / PDIF is connected, and a warning sound is input from the playback device 1 to the AV amplifier 21 through the S / PDIF. However, the AV amplifier 21 gives priority to the other analog or HDMI input and outputs it to the speaker 22. For this reason, no warning sound is output from the speaker 22. That is, the user does not hear an unnecessary warning. If the user manually selects the AV amplifier 21 and switches to S / PDIF, the user can hear a warning sound through the S / PDIF for the first time, and the selected output is not appropriate for the user. Be notified. The playback device 1 simply outputs a warning sound to the S / PDIF, and does not perform any processing such as determining which line is connected. That is, the playback device 1 in the AV system 100 according to the first embodiment can notify that the connection selected by the user is not appropriate with a very simple configuration. For this reason, when the connection is not appropriate, the user can be prompted to switch to the appropriate connection.

  In FIG. 5, as in the case of FIG. 4, when the AV amplifier 21 automatically selects the highest priority HDMI input, the warning sound through the S / PDIF is not output from the speaker 22. When the user manually performs the selection operation of the AV amplifier 21 and switches to S / PDIF, the user hears a warning sound through the S / PDIF for the first time, and notifies the user that the selected output is not appropriate. Is done. That is, the playback device 1 in the AV system 100 according to the first embodiment can notify the user that the connection selected is not appropriate with a very simple configuration. For this reason, when the connection is not appropriate, the user can be prompted to switch to the appropriate connection.

  As described above, the playback device 1 according to Embodiment 1 determines whether or not to output a warning sound that warns an erroneous connection using management information (content information and media information) attached to content. As a result, the warning sound is output only to a specific line (inappropriate connection line, S / PDIF in this embodiment). The AV system 100 including the playback device 1 can output a warning sound only when an inappropriate output line is selected with such a simple configuration, and notifies the user that an inappropriate output is selected. be able to. The user learns that the audio line connection is not appropriate and is prompted to switch to the correct connection. For the user, it is only necessary to change the connection in accordance with the output warning, so it is not necessary to confirm in detail whether the connection is appropriate, and the user is not burdened. The user can view the content in an appropriate form simply by changing the connection in accordance with the output warning.

  The playback apparatus 1 according to Embodiment 1 does not determine which line is connected. In other words, it is possible to realize the notification to the user as described above and the switching to an appropriate connection with a simple configuration without requiring high-load processing such as determining which line is connected. . Therefore, complicated processing is reduced in the device, and the load can be reduced.

[Embodiment 2]
FIG. 6 is a diagram showing an AV system 700 including the playback device 6 according to the second embodiment.

The AV system 700 will be described with reference to FIG.
The AV system 700 includes a playback device 6 and an AV amplifier 71 connected to the playback device 6. The AV amplifier 71 is connected to the monitor 72.

  The output terminal 60 of the playback device 6 includes an analog output terminal 60a and an HDMI output terminal 60b. The input terminal 70 of the AV amplifier 71 includes an analog input terminal 70a and an HDMI input terminal 70b. As shown in FIG. 6, the output terminal and the input terminal are respectively connected to corresponding terminals.

  In the second embodiment, it is assumed that the playback device 6 is an AV disc player having analog and digital (HDMI) video output terminals. When an undesired terminal is selected as the video output, the playback device 6 warns in an easy way through the video output that the connection is not appropriate. That is, the playback device 6 is a device that decodes and outputs a video signal read from the disk 11. In the AV system 700, only the line connection system relating to the video signal and the monitor 72 relating to the video output are shown as components. Of course, as in the first embodiment, the actual player may include an audio line connection, a control line connection, an audio output device (speaker), etc., in addition to the illustrated video line connection and video output device (monitor). . In addition, one connection may be composed of a plurality of connections such as one connection with three lines of R / G / B, or a plurality of line connections for one type such as having two HDMI systems. The fact that a system may be provided is the same as in the first embodiment.

  In this embodiment, in a player having a digital (HDMI) or analog video output, when a high-resolution video is recorded on the disc, the player's capability restriction (or the capability of an AV amplifier or other connected device) Consider the case where only low resolution can be output with analog output. Further, consider the case where additional content (menu screen, game, etc.) accompanying the content is produced with particular attention to high-resolution display, and down-converted output is restricted or prohibited. . In such a case, the user viewing the video with an analog connection does not notice that the content played back on the other (digital) output is different, and as a result, the provider has a content viewing experience as intended. It can happen that it cannot be provided to the user. Therefore, in the playback device 6 according to the second embodiment, information indicating the video resolution and information indicating whether or not the high-resolution display additional content is added (these are the content information described in the first embodiment). If the connection is not appropriate, use the management information included to determine whether or not to issue a warning character (video) to the analog side, such as “If the digital output is not connected, content will not be output as intended” Prompt the user to change the connection.

FIG. 7 is a functional block diagram showing a schematic configuration of the playback device 6 according to the second embodiment.
With reference to FIG. 7, a schematic configuration of the playback device 6 according to the second embodiment will be described.

  The playback device 6 includes a reading unit 601 for reading data from the disc 11, a decoding unit 602 for decoding the compressed data, an additional content combining unit 603 for combining the decoded data and the additional content, A resolution conversion unit 604 for converting video data for analog output, a determination unit 605 for determining whether to synthesize a warning with the data from the resolution conversion unit 604 based on the management information 40, and a warning character A warning generating unit 606 for generating the data, a warning synthesizing unit 607 for combining the warning or additional content with the data of the resolution converting unit 604, a D / A converting unit 608 for converting the digital data into analog data, And an output terminal 60 for outputting a signal to an external device. The output terminal 60 includes an analog output terminal 60a and an HDMI output terminal 60b, and the warning synthesis unit 607, the D / A conversion unit 608, and the output terminal 60 function as the output unit 609.

  The reading unit 601 includes management information 40 (contents) including information indicating video resolution and information indicating presence / absence of high-resolution additional content together with content video data (encoded data) and additional content (menu screen, game, etc.) data. Information) is read, the video data (content video 42 in FIG. 7) is sent to the decoding unit 602, the additional content data 44 is sent to the additional content synthesis unit 603 and the warning synthesis unit 607, and the management information 40 is sent to the determination unit 605.

  The decoding unit 602 decodes the content video 42 read from the disk 11 via the reading unit 601 to obtain a decoded video. The decoded high-resolution video signal is sent to the additional content synthesis unit 603 and the resolution conversion unit 604.

  The additional content synthesis unit 603 synthesizes the additional content with the decoded high-resolution video signal and outputs it. This output video is output to the outside (for example, the AV amplifier 71 in FIG. 6) via the HDMI output terminal 60b.

  The resolution conversion unit 604 converts (down-converts) the video given from the decoding unit 602 into a low-resolution video for analog output, and gives it to the warning synthesis unit 607.

  The determination unit 605 determines from the information indicating the resolution included in the management information 40 whether the resolution of the analog signal output from the playback device 6 matches or is different from the original resolution of the content. If they match, the warning is not necessary because the content is output at the original size.

  Further, the determination unit 605 determines whether or not to synthesize a warning character (video) with the content video based on information indicating the presence / absence of high-resolution additional content included in the management information 40, and instructs the warning synthesis unit 607. To do. That is, when there is additional content whose analog signal resolution is different from the original content resolution (analog output resolution is low) and resolution conversion is restricted or prohibited, the content image is sent to the warning composition unit 607. A control signal is sent to instruct to synthesize a warning character (video).

  The warning generation unit 606 generates a warning character or a warning video to be superimposed on the analog video display. As warning characters, there is a message such as “Contents will not be output as intended unless digital output is connected”, or additional content for high-resolution display in order to encourage switching to a high-resolution digital output. In addition, a message such as “If the digital output is not connected, part of the content is not displayed correctly” can be considered. Of course, the warning characters are not limited to these, and any warning may be used as long as the content prompts the user to pay attention. Further, other than warning characters, a warning video or a warning signal pattern that can indicate that the connection is not appropriate may be used.

  When the determination unit 605 determines that the analog connection is not appropriate, the warning composition unit 607 and the content video after the down-conversion obtained by the resolution conversion unit 604 and the warning character (video) generated by the warning generation unit 606 are displayed. Are combined (with warning characters superimposed on the content video) and provided to the D / A converter 608. Also, if there is additional content that is not restricted or prohibited by the output resolution, it is combined together. On the other hand, when the warning character (video) composition is not instructed (the analog output resolution matches the original resolution of the content, or there is no high-resolution additional content that is restricted or prohibited by the output resolution), the warning composition unit 607. Synthesizes the content video and the additional content if there is additional content to be synthesized, and provides the output video to the D / A converter 608.

  The D / A conversion unit 608 D / A converts the low resolution content video including the warning character (video) output from the warning synthesis unit 607 and outputs an analog video signal. The output video signal is output to the outside (for example, the AV amplifier 71 in FIG. 6) through the analog output terminal. The D / A conversion is not necessarily performed last, but before the resolution conversion (between the decoding unit 602 and the resolution conversion unit 604) or before the synthesis of the warning character (the resolution conversion unit 604 and the warning synthesis unit 607). Between the two).

  Next, an example of video output operation of the playback device 6 in the AV system 700 will be described.

  FIG. 8 is a diagram showing a video output state when the playback apparatus 6 and the AV amplifier 71 are connected by only one of analog and HDMI lines.

  FIG. 9 is a diagram showing a state of video output when both the analog and HDMI lines are connected between the playback device 6 and the AV amplifier 71.

  With reference to FIG. 8 and FIG. 9, the connection through which the video signal is output to the monitor 72 when the playback device 6 and the AV amplifier 71 perform different video line connections in the AV system 700 will be described. . Note that the playback device 6 does not have a function of determining whether or not each connection is connected. The AV amplifier 71 is illustrated assuming that the output is automatically selected in the order of HDMI> analog priority. That is, when both lines are connected, HDMI is given priority as a correct connection, and a video signal obtained through HDMI is output to the monitor 72. In addition, any of the connected lines can be selected and switched by the user performing a selection operation.

  In FIG. 8 and FIG. 9, a double line is used to indicate that a warning character (video) is output and transferred, as in the first embodiment. On the other hand, the HDMI connection in which the warning character (video) is not transferred is illustrated using a single line. A line in which input / output terminals are not connected by a line indicates a line that is not connected.

  8A is a diagram illustrating a case where analog is connected, and FIG. 8B is a diagram illustrating a case where HDMI is connected.

  In this case, in the playback device 6 according to the second embodiment, as shown in FIG. 8A, a warning character (video) is output only when only analog is connected. As shown in FIG. 8B, in the state where only HDMI is connected, the content is played back as usual without warning. As a result, it is possible to receive a warning only in the case of output via analog and prompt the user to switch to an appropriate connection with a simple configuration.

  In FIG. 9, HDMI is given priority in the AV amplifier 71, so that warning characters (video) via analog are not output to the monitor 72. When the user manually selects the AV amplifier 71 and switches to analog, a warning character (video) via analog is visible to the user for the first time, and the user is notified that the selected output is not appropriate. That is, the playback device 6 and the AV system 700 of the present invention can notify the user that the selected connection is not appropriate with a very simple configuration, and prompt the user to switch to an appropriate connection if the connection is not appropriate. Making it possible.

  As described above, the playback device 6 according to the second embodiment uses the management information (content information) attached to the content to determine whether the connection is appropriate and whether to issue a warning. As a result of the determination, a warning is output only to a specific line (inappropriate connection line, analog in this embodiment). The AV system 700 including the playback device 6 according to the second embodiment has such a simple configuration, and allows a user to view a warning only when an inappropriate output line is selected, and an inappropriate output is selected. The user can be notified. The user learns that the video line connection is not appropriate and is prompted to switch to the correct digital output connection.

  Further, the playback device 6 according to Embodiment 2 does not determine which line is connected. In other words, it is possible to realize the notification to the user as described above and the switching to an appropriate connection with a simple configuration without requiring high-load processing such as determining which line is connected. .

  In addition, the playback device 6 according to Embodiment 2 outputs digital and analog video output to an AV device having a functional specification such that when both digital and analog video outputs are connected, the menu display is output only to the digital side. It can also be used to issue a warning to the effect that “the menu is displayed on the digital output” only on the analog side when there is no connection.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

1 is a diagram showing an AV system 100 including a playback device 1 according to Embodiment 1. FIG. 3 is a functional block diagram showing a schematic configuration of a playback apparatus 1 according to Embodiment 1. FIG. FIG. 3 is a diagram showing a state of audio output when the playback apparatus 1 and the AV amplifier 21 are connected by only one of S / PDIF, HDMI, and analog lines. FIG. 3 is a diagram illustrating an audio output state when the playback apparatus 1 and the AV amplifier 21 are connected by any two lines of S / PDIF, HDMI, and analog. FIG. 3 is a diagram showing a state of audio output when the playback apparatus 1 and an AV amplifier 21 are connected by all lines of S / PDIF, HDMI, and analog. 6 is a diagram showing an AV system 700 including a playback device 6 according to Embodiment 2. FIG. 6 is a functional block diagram illustrating a schematic configuration of a playback device 6 according to Embodiment 2. FIG. FIG. 6 is a diagram showing a video output state when the playback apparatus 6 and the AV amplifier 71 are connected by only one of analog and HDMI lines. FIG. 6 is a diagram illustrating a video output state when both the analog and HDMI lines are connected between the playback apparatus 6 and the AV amplifier 71.

Explanation of symbols

  1 playback device, 6 playback device, 10 output terminal, 11 disc, 20 input terminal, 21 AV amplifier, 22 speaker, 60 output terminal, 70 input terminal, 72 monitor, 100 AV system, 101 reading unit, 102 decoding unit, 103 Compositing unit, 104 D / A converting unit, 105 determining unit, 106 warning converting unit, 107 switch, 108 output unit, 601 reading unit, 602 decoding unit, 603 additional content combining unit, 604 resolution converting unit, 605 determining unit, 606 Warning generation unit, 607 warning composition unit, 608 D / A conversion unit, 609 output unit, 700 AV system.

Claims (9)

In order to determine whether or not the content data can be output in a predetermined manner based on the management information for content data including at least one of video and audio and data to be managed including management information related to the content data Determining means,
Warning generating means for generating a warning signal notifying that output is impossible;
A plurality of output terminals having different output methods, and output means for outputting the content data from each of the plurality of output terminals,
The output means outputs the warning signal from at least one predetermined output terminal that cannot be output in the predetermined form among the plurality of output terminals, in accordance with a determination result that the determination means does not output. apparatus.   The reproducing apparatus according to claim 1, further comprising reading means for reading the reproduction target data recorded on the medium. The output means includes switch means for selecting any one of the content data or a warning signal given from the warning generation means and giving the selected signal to the predetermined output terminal,
The reproducing apparatus according to claim 1, wherein the switch unit selects the warning signal according to a determination result of the determination unit that the output is impossible. The content data is encoded data,
The playback device according to claim 1, further comprising decoding means for decoding the encoded data. The content data is composed of main content including at least one of video and audio, and sub-content including at least one of video and audio to be reproduced by being superimposed or synthesized on the main content,
The playback apparatus according to claim 1, wherein the predetermined mode is that the main content and the sub-content are superimposed or combined and output. At least one of the main content or the sub-content is encoded data;
The playback device according to claim 5, further comprising decoding means for decoding the encoded data. The content data is acoustic data,
The playback apparatus according to claim 1, wherein the predetermined output terminal includes an S / PDIF. The output means includes a warning synthesis means for synthesizing the content data and a warning signal given from the warning generation means, and giving to the predetermined output terminal,
2. The playback apparatus according to claim 1, wherein the warning synthesizing unit synthesizes the content data and the warning signal according to a determination result of the determination unit that the output is impossible, and provides the synthesized data to the predetermined output terminal. The content data is video data,
The playback apparatus according to claim 1, wherein the predetermined mode is to output the video data from the predetermined output terminal while maintaining the resolution of the video data.

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