Apparatus and method for transmitting MPEG-4 data synchronized with MPEG-2 data
US7570692B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Dec 12, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8193
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for transmitting MPEG-4 data synchronized to MPEG-2 data is disclosed. The apparatus for transmitting MPEG-4 data synchronized to MPEG-2 data includes: an object separation unit for extracting MPEG-4 object data from MP4 data, separating meta information from the object data, and generating program information and synchronization information; a conversion unit for converting the MPEG-4 object data to MPEG-4 packets of which data structure is the same as that of MPEG-2 data, based on the program information and synchronization information; and a multiplexing unit for multiplexing the MPEG-4 packets with the MPEG-2 data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.