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Data processing device

A data processing device and data processing technology, which are used in data recording, recording signal processing, digital signal formatting, etc.

Inactive Publication Date: 2006-05-24
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the microcontroller must perform switching control of each switch

Method used

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Examples

Experimental program
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Embodiment Construction

[0039] Next, a playback device as an embodiment of the data processing device according to the present invention will be described with reference to the drawings.

[0040]First, the data structure of the data stream to be processed in the data processing device according to this embodiment will be described, and then the configuration and operation of the playback device will be described.

[0041] figure 2 Indicates the data structure of the MPEG-2 transport stream 20. An MPEG-2 transport stream 20 (hereinafter referred to as "TS20") includes a plurality of TS Object Units (TS Object Units; TOBUs) 21 composed of one or more transport packets (TS packets). The TS information packet (TSpacket), for example, in addition to including the video TS information packet (V_TSP) 30 storing the compressed video data and the audio TS information packet (A_TSP) 31 storing the compressed audio data, also includes storing the program table ( Program·combination·table; PAT packet (PAT_TSP...

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Abstract

A data processing device comprising: a data stream extracting unit that obtains first and second data streams; a packet insertion unit that generates pseudo information having a pseudo identifier different from identifiers of a plurality of packets of the data stream A packet is inserted between the last information packet of the first data stream and the head information packet of the second data stream; the separation unit separates the content data according to each category according to the identifier, responds to the detection of the false identifier, and inserts error data different from the content data; and a decoder that reproduces the content data in reproduction units, detects the error data, and discards the last incomplete content data of the first stream and up to the first header of the second stream Content data is not reproduced.

Description

technical field [0001] The present invention relates to techniques for reproducing video and / or audio from a data stream. More specifically, the present invention relates to techniques suitable for successively reproducing different parts of the same data stream or multiple data streams. Background technique [0002] In recent years, with the development of digital technology, data related to video or audio content can be encoded in accordance with standards such as MPEG, and recorded as an encoded data stream on a recording medium such as an optical disc or a hard disk. Furthermore, a technique for reproducing an encoded data stream from such a recording medium corresponding to the recording technique has also been proposed and put into practical use. [0003] For example, Japanese Patent Application Laid-Open No. 2002-281458 discloses a playback device that plays back an encoded data stream recorded on a recording medium. Refer below figure 1 The configuration of this p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/92G11B20/10G11B20/12G11B20/18G11B27/10H04N9/804H04N9/806
CPCG11B20/1217G11B20/18G11B27/105H04N9/8042H04N9/8063
Inventor 森本健嗣则竹俊哉
Owner PANASONIC CORP