Systems and methods for providing multiple video streams per audio stream
US8166503B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2008 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Feb 23, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/2362
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for providing multiple video presentations per audio program. In one aspect, the method comprises (a) assigning a first packet identifier (PID) to a first elementary stream, wherein the first elementary stream comprises video packets corresponding to a high-definition video presentation; (b) assigning a second PID to a second elementary stream, wherein the second elementary stream comprises video packets corresponding to a standard-definition video presentation and the second PID is different than the first PID; (c) assigning a third PID to a third elementary stream, wherein the third elementary stream comprises audio packets corresponding to a selected audio recording, wherein the third PID is different than the second PID; and (d) (1) creating a program map table that includes the first PID, the second PID and the third PID or (2) creating (i) a first program map table that includes the first PID and the third PID and (ii) a second program map table that includes the second PID and the third PID. In this way, the method provides a high-definition and a standard-definition video presentation per a single audio program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.