Playback of recorded streaming delta-encoded data
US8139923B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2008 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Jan 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/65
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus having corresponding methods and computer-readable media comprise a circuit adapted to receive a seek time for a first stream of delta-encoded data stored in a stream file; a circuit adapted to select an index time based on the seek time, and adapted to retrieve an index pointer associated with the index time from an index file, wherein the index file includes a plurality of the index times and index pointers each associated with one of the index times; a circuit adapted to select an intraframe based on the index pointer, and adapted to retrieve the intraframe, and a frame pointer associated with the intraframe, from a frame file, wherein the frame file includes a plurality of the intraframes and frame pointers; and an output circuit adapted to transmit a second stream of delta-encoded data based on the intraframe and the delta-encoded data stored in the stream file.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.