Transport hint table for synchronizing delivery time between multimedia content and multimedia content descriptions
US7734997B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 28, 2002 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Dec 20, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8547
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The content description of multimedia content contains a plurality of descriptor values that pertain to specific events within the media. A Transport Hint Table (THT) provides a set of synchronization events that indicate the relation between timed events in the media and their representation in the content's description data. The THT allows for synchronized delivery of presentation of content description data with the associated events in the media. The THT provides a set of sync events based on the existence of “time” related events obtained from the content description data, which are relevant to particular events in the media. The THT allows the transport layer encoder to use the time-related events to synchronize the scheduled delivery times of media content segments and their associated descriptions. The THT also provides information for fragmenting a description for delivery and for managing resources at the decoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.