Methods and apparatus for improved program acquisition for use with MPEG-2 based systems
US8634310B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2008 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Nov 2, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4532
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for improved program acquisition for use with MPEG-2 based systems. In an aspect, a method includes receiving a program association table (PAT) associated with an MPEG-2 transport stream, and identifying program map tables (PMTs) included in the PAT. The method also includes caching the PMTs, receiving a request to present a program, determining if a PMT associated with the program has been cached, and acquiring the selected program using information from the cached PMT. An apparatus includes means for receiving a PAT associated with an MPEG-2 transport stream and means for identifying PMTs included in the PAT. The apparatus also includes means for caching the PMTs, means for receiving a request to present a program, means for determining if a PMT associated with the program has been cached, and means for acquiring the selected program using information from the cached PMT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.