Apparatus and methods for thumbnail generation
US10375452B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2015 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Jun 18, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for thumbnail generation. In one embodiment, a thumbnail stream is generated where one or more bits are assigned to key frames and minimizes the number of bits assigned to delta frames. Each key frame may be used to extract a still image for use in thumbnails during trick mode operation (e.g., fast forward, rewind, pause, or random seek operation). When the encoded video file is given to a Just in Time Packager (JITP), the JITP extracts the image files (via the key frames). Information regarding how to reference these files is stored in generated manifest file and may be reformatted by the JITP to fit the needs of the current product. In a variant, the JITP reformats the image files extracted from the encoded video for operation on a number of devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.