Method and apparatus for identifying MPEG picture coding types
US7206501B2 · kind B2 · utility
9Cited by
5References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2001 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Apr 4, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/783
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a digital video recording system (DVR), a method of identifying the MPEG picture coding type of individual pictures of a GOP that is contained within a DSS transport packet, without parsing and evaluating each DSS transport packet. The picture coding type identifies whether a picture is an intra-coded (I) picture, predictive-coded (P) picture or bi-directionally predictive-coded (B) picture. The method facilitates implementation of DVR system playback modes, and especially trick modes by identifying and indexing the transport packet payload containing the I-picture (frame or field).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.