MOVING IMAGE AND AUDIO REPRODUCTION DEVICE

• US 20090110369A1
• Filed: 10/09/2008
• Published: 04/30/2009
• Est. Priority Date: 10/31/2007
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshia
• Inventors: Takahashi, Hideaki, Watanabe, Ryo, Maruyama, Koji
• Application Number:
  US12/248,535
• Publication Number:
  US 20090110369A1
• Time in Patent Office: Days
• US Class Current: 386/357
• CPC Class Codes: G10L 19/20 using sound class specific coding, hybrid encoders or object based coding
• CPC Class Codes: G11B 2220/2579 HD-DVDs [high definition DVDs]; AODs [advanced optical discs]
• CPC Class Codes: G11B 2220/2583 wherein two standards are used on a single disc, e.g. one DVD section and one CD section
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/329 on a disc [VTOC]

Abstract

According to one embodiment, a moving image and audio reproduction device includes an extraction block which extracts a composition of an Elementary Stream in an Audio Stream included in content and a setting shown in the Elementary Stream, and a signal processing part which reproduces the Audio Stream in accordance with the composition of the Elementary Stream in the Audio Stream and the setting shown in the Elementary Stream, extracted by the extraction block.

Claims

1. A video and audio reproduction device comprising:

an extraction unit which extracts a composition of an Elementary Stream in an Audio Stream included in content and a setting of the Elementary Stream; and

a reproduction unit which reproduces the Audio Stream in accordance with the composition of the Elementary Stream in the Audio Stream and the setting of the Elementary Stream, extracted by the extraction means.

2. The video and audio reproduction device of claim 1, wherein the an extraction unit detects an audio format in an Audio Stream being set based on a numeric value described in the Elementary Stream.

3. The video and audio reproduction device of claim 1, wherein the an extraction unit detects an audio format in an Audio Stream being set, on the basis of an audio coding mode described in the Elementary Stream.

4. The video and audio reproduction device of claim 1, further comprising:

a transmission device which transmits the Audio Stream reproduced by the reproduction means to a receiving device without decoding the reproduced Audio Stream.

5. The video and audio reproduction device of claim 4, wherein the reproduction unit distinguishes the Audio Stream selected from the composition of the Elementary Stream in the Audio Stream and the setting of the Elementary Stream, extracted by the extraction means, and switches an audio format to be output through the transmission device.

6. A video and audio reproduction device comprising:

an extraction unit which checks whether an audio coding sub-mode exists in an Audio Stream Attribute in Video Title Set Information included in content;

a reproduction unit which reproduces the Audio Stream extracted by the extraction means;

a transmission device which transmits the Audio Stream reproduced by the reproduction means to a receiving device; and

a switching unit which distinguishes the Audio Stream from the setting of an Audio Coding Mode in the audio coding sub-mode extracted by the extraction means and switching an audio format in content to be output to the transmission device.

7. The video and audio reproduction device of claim 6, wherein the switching unit compares the Audio Coding Mode in the audio coding sub-mode extracted by the extraction unit with previously obtained information of the audio format which is set as the Elementary Stream in the Audio Stream and, when the Audio Coding Mode and the information set as the Elementary Stream do not coincide with each other, gives preference to the information set as the Elementary Stream.

8. A method for moving image and audio reproduction in a video and audio reproduction device, comprising:

extracting a composition of an Elementary Stream in an Audio Stream included in content and a setting of the Elementary Stream; and

reproducing the Audio Stream in accordance with the extracted composition of the Elementary Stream in the Audio Stream and the extracted setting of the Elementary Stream.

9. The method for moving image and audio reproduction in a video and audio reproduction device of claim 8, wherein the extraction of the composition of the Elementary Stream and the setting of the Elementary Stream is the extraction of a numeric value of the Elementary Stream.

10. The method for moving image and audio reproduction in a video and audio reproduction device of claim 8, wherein the extraction of the composition of the Elementary Stream and the setting of the Elementary Stream is the detection of the audio format in the Audio Stream which is set in accordance with an audio coding mode shown in the Elementary Stream.