Method for fast channel change and corresponding device
US10057634B2 · kind B2 · utility
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3References
16Claims
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Key dates
| Filing date | Oct 16, 2016 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Oct 16, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8547
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a video delivery environment where a channel change in an audio/video receiver starts with a burst delivery of an audio/video stream to the receiver, characteristics of the audio/video stream are determined such as audio-video drift and burst characteristics in terms of duration of excess data delivery. At least one of these characteristics determines an offset to add to an initialization of a decoder clock, so that moving images are shown as early as possible after receipt of the channel change command, to be joined by lip synchronized audio before burst end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.