Method and apparatus for switching a source of an audiovisual program configured for distribution among user terminals
US7502368B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 8, 2004 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Aug 11, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/762
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for switching a source of an audiovisual program configured for distribution among a plurality of user terminals is described. In one example, a first real-time digital bitstream and a second real-time digital bitstream are received. The source is mapped to the first real-time digital bitstream. A request is received from a remote controller. The request is operative to switch the source of the audiovisual program. The source of the audiovisual program is switched to the second real-time digital bitstream in response to the request. Time stamp data in the second real-time digital bitstream is adjusted to provide a continuous time base for the audiovisual program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.