Method and apparatus for aligning sub-stream splice points in an information stream
US6785289B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2000 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Jan 12, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/44016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and concomitant apparatus for incorporating one or more relatively low bitrate information streams (e.g., MPEG) into a relatively high bitrate information stream (e.g., SDTI) in a manner aligning low bitrate sub-stream splice entrance points and splice exit points within the frame boundaries of the high bitrate information stream. In this manner, the splicing of the relatively high bitrate information stream at appropriate In Frames and Out Frames will provide relatively seamless splicing of information sub-streams. The packing and unpacking methods are implemented such that the temporal offset between elementary streams carried within relatively low bitrate information stream is removed, i.e., the elementary streams are synchronized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.