System and method for seamless switching
US7490344B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2000 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Sep 11, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8455
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of preparing data streams to facilitate seamless switching by a switching device to produce an output data stream without any switching artifacts. Bi-directional switching between any plurality of data streams is supported The data streams are divided into segments, wherein the segments include synchronized starting points and end points. The data rate is increased before an end point of a segment. Gaps may be inserted between the segments. Increasing the data rate can include increasing a bandwidth of the plurality of data streams, for example by multiplexing, or compressing the data. The present invention can be used with media data streams, for example with MPEG encoded transport streams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.