Supercharge Your Innovation With Domain-Expert AI Agents!

Moving picture data reproducing device

A data reproduction and moving image technology, applied in digital recording/reproduction, data recording, image communication, etc., can solve the problem of expensive telephone charges

Inactive Publication Date: 2004-11-17
PANASONIC CORP
View PDF4 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially, with regard to the mobile communication system in which the fee is determined in proportion to the amount of data downloaded, there is a problem that the file size must be minimized as much as possible so that the telephone fee will not be expensive

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Moving picture data reproducing device
  • Moving picture data reproducing device
  • Moving picture data reproducing device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0067] figure 2 A block diagram showing the structure of the moving picture data reproducing apparatus related to the first embodiment in the present invention.

[0068]This moving picture data reproducing device 200 is a device for decoding and reproducing video data, audio data, etc. encoded by a compression encoding method (such as MPEG-4), and the device has a file for receiving an MP4 file in the device Input unit 201, for temporarily storing the data file temporary storage unit 202 of the MP4 file that receives in this equipment, is used for reading and analyzing the data file analysis unit 203 of the header information of MP4 file, is used for decoding and is included in the MP4 file The data decoding unit 204 of the entity data in is used for reproducing and outputting the decoded entity data to a display device (such as a display) The data reproduction unit 205 is used for generating the random access information of the RA information table in order to perform random ...

no. 2 example

[0153] Next, a second embodiment in the present invention will be described with reference to the drawings.

[0154] Although the moving picture data reproducing apparatus for generating the RA information table in order to speed up the random access processing has been described in the above-mentioned first embodiment, the moving picture data for using the generated RA information table will be described in this second embodiment. reproduce the device. Therefore, the components of the moving picture data reproducing device in this second embodiment are different from those of the moving picture data reproducing device 200 in the first embodiment. The following description focuses on this difference.

[0155] Figure 10A block diagram showing the structure of the moving picture data reproducing apparatus in the second embodiment in the present invention.

[0156] This moving picture data reproducing device 500 has a reproduction position control unit 507, and this device is...

no. 3 example

[0185] Next, a third embodiment in the present invention will be described with reference to the drawings.

[0186] In the first embodiment described above, the moving picture data reproducing device that generates the RA information table is mainly explained, and in the second embodiment above, the moving picture data reproducing device using the RA information table is mainly explained. In other words, in the first and second embodiments described above, the moving picture data reproducing apparatus for realizing fast random access, which converts the RA information table into a package structure or uses the RA information generated in the package structure sheet.

[0187] In contrast, the moving picture data reproducing apparatus in the third embodiment generates several blocks for storing RA information of the corresponding tracks and one pack storing all these packs in one. Therefore, the components of the moving picture data reproducing apparatus in the third embodiment...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The moving picture data reproducing device 200 is comprised of file inputting unit 201 for acquiring an MP4 file, data file temporary storage unit 202 that has an area for temporarily storing the accepted input MP4 file, data file analyzing unit 203 for analyzing the file header information by reading the input MP4 file, data decoding unit 204 for reading entity data from data file temporary storage unit 202 based on the analysis result of data file analyzing unit 203 and decoding the entity data, data reproducing unit 205 for reproducing the decoded entity data and outputting the entity data to a displaying device, RA information table generating unit 206 for transforming random access information generated based on the analysis result of data file analyzing unit 203 into a table, file outputting unit 207 for outputting a new MP4 file by integrating the RA information table and the input-completed MP4 file, and file storing unit 208 for storing the outputted MP4 file.

Description

technical field [0001] The present invention relates to an apparatus for reproducing multiplexed files of video data, audio data, etc., and more particularly, to a technique for facilitating random access playback such as reproduction position change or fast-forward reproduction. Background technique [0002] Due to recent developments in network technology, moving picture data reproducing devices for reproducing moving picture data by downloading files from server devices on wide area networks such as the Internet have been developed. In particular, the term "multimedia" is used extensively these days, and in many cases, media data such as audio data and text data are contained in files, and moving image data reproducing devices are required to simultaneously reproduce various tracks, such as audio tracks and text tracks. [0003] This moving picture data reproducing device introduces a file containing encoded video data or the like based on a compression encoding method s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G11B27/00G11B27/10H04N5/76H04N5/781H04N5/85H04N5/907H04N7/24H04N9/804H04N9/82
CPCH04N21/42661G11B27/005H04N5/76H04N5/85G11B27/105H04N5/781H04N21/8455H04N21/4147H04N9/8205H04N9/8042H04N5/907H04N21/85406G11B20/10G11B27/10
Inventor 松井义德能登屋阳司远间正真
Owner PANASONIC CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com