Intra-segment video upswitching with dual decoding
US11153581B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 2020 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | May 19, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8456
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
During downloading and decoding of a lower-quality video version of a video segment, an up-switch condition may be detected. An intra-segment up-switch to a higher-quality version of the segment may then be made. In particular, the higher quality version may be downloaded and decoded at least partially concurrently with the lower-quality version, for example using a dual decoder arrangement. A first portion of the lower-quality version may be displayed. The first portion of the lower-quality may extend from a start of the segment to an intermediate position of the segment. At the intermediate position, playing may be switched from the lower-quality version to the higher-quality version. A second portion of the higher-quality version may be displayed. The second portion of the higher-quality version may extend from the intermediate position to an end of the segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.