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Reproduction device and reproduction method

A reproducing device and sound output technology, applied in recording/reproducing/deleting methods, carrier indicating devices, digital recording/reproducing, etc., capable of solving problems such as adverse effects of sound output and inability to adopt standard models

Active Publication Date: 2010-05-05
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of re-encoding requires an encoder, so it cannot be adopted as a standard model for BD-ROM playback devices.
[0008] That is to say, in the prior art, there is a technical problem that the sound output will be adversely affected when the sound mixed output of the click sound is to be realized.

Method used

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  • Reproduction device and reproduction method
  • Reproduction device and reproduction method
  • Reproduction device and reproduction method

Examples

Experimental program
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Effect test

no. 1 Embodiment approach

[0097] Embodiments of the recording medium of the present invention will be described below. First, the mode of use in the implementation of the recording medium of the present invention will be described. figure 1 It is a figure of the form of the usage behavior of the recording medium of this invention. exist figure 1 Among them, the recording medium of the present invention is BD-ROM 100, and BD-ROM 100 is used to provide works to a home theater system formed by playback device 200, remote controller 300, TV 400, and amplifier 500 connected to surround speakers.

[0098] In this system, the reproduction device 200 reproduces various data recorded on the BD-ROM 100 to perform video output and audio output. The video output of the reproduction device 200 is transmitted through HDMI (High Definition Multimedia Interface: High Definition Multimedia Interface) Wait for the analog interface to output to the TV 400 . In addition, the audio output of the playback device 200 is o...

no. 2 Embodiment approach

[0428] In the first embodiment, the Mixing_On flag is set for each life cycle of the application that automatically reproduces the playlist, but from another point of view, the playlist and the application life cycle are equivalent, and it can be considered to constitute a playlist Control based on the Mixing_On flag is performed for each playback section of .

[0429] In view of these, in this embodiment, a technique of setting a Mixing_On flag in playlist information is proposed.

[0430] Figure 40 (a) is a diagram of the internal structure of playlist information in the second embodiment. This picture and Figure 8 The difference in the internal structure of the PlayList information shown in (a) is that the Mixing_On flag is provided in the PlayItem information. Figure 40 (b) is a diagram showing the contents of the Mixing_On flag set in the PlayItem information.

[0431] When the Mixing_On flag is set to 1, it indicates that the click sound based on the file sound.bd...

no. 3 Embodiment approach

[0445] In the first embodiment, playlist playback in the Java (registered trademark) virtual machine can be specified using the playlist management table in the BD-J Object. The problem here is the playlist management table. That is, whether or not playlists can be played back is described in the playlist management table of each BD-J Object, so playback is possible in a certain Title but not in another Title. Also, even if playlists can be played back, from the viewpoint of copyright protection, it may be desirable to prohibit playback from a certain application. In order to implement such playlist playback restriction, in the third embodiment, an authority controller is provided in the Java (registered trademark) platform 35 .

[0446] When an application requests to play back the playlist, the permission controller and the application perform mutual authentication to determine whether the requesting application has the right to play back the playlist. If yes, then request ...

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Abstract

A BD-ROM contains AVClip and Java (registered trademark) application. In the AVClip, a video stream is multiplexed with an audio stream. Moreover, the BD-ROM contains management information and a Mixing_On flag corresponding to it. The management information indicates reproduction control of AVClip to be started simultaneously with execution of the Java (registered trademark) application. The Mixing_On flag indicates whether to mix the clip sound corresponding to the user operation on the Java (registered trademark) application and the audio output of the AVClip during the aforementioned reproduction control.

Description

technical field [0001] The present invention belongs to the technical field of click sound reproduction. Background technique [0002] The so-called click sound playback is a technique in which, when a user operates a GUI displayed during playback of a movie work, the click sound is mixed with the reproduced sound in the movie work and output in response to the operation. [0003] For example, consider a case where the GUI displayed during the playback of a movie accepts an instruction to execute the function "start the game", and in accordance with the instruction, the audio announcement "start the game now" is mixed into the main movie as a click sound. sound and output. If the voice announcement is the voice of a character appearing in the movie, the child user can feel the impression that the character appearing in the movie is talking to him through the voice announcement. By introducing the click sound reproduction as described above, it is possible to introduce a GU...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B27/00G11B27/10G11B20/10G11B20/02G11B20/12H04N5/93H04R3/00H04S5/02
CPCG11B27/329G11B27/034G11B27/105G11B2220/2541G11B2220/213G11B19/025G11B27/34G11B20/10G11B27/10
Inventor 桥本敏史大芦雅弘冈田智之矢羽田洋
Owner PANASONIC CORP
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