Method of synchronizing audio-visual assets
US9332160B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Sep 9, 2015 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Sep 9, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method of synchronizing the processing and distribution of audio-visual assets in a distributed production studio are presented. The method addresses the processing of broadcast television, including match moving computer graphics technology, in such an environment. Audio-visual sources provide the assets while processing nodes interact with them to produce a composite output. Synchronization of the communication between, and the processing by, the sources and nodes is managed by a master controller and delay buffers located on the nodes. Assets are tagged with updatable reference-to-zero values indicative of a current transmission delay between their last source and the controller. These reference-to-zero values are used by processing nodes to determine where in their local buffer to place each asset so they emerge from the buffer to a local digital signal processor in synchronicity and that assets originally produced at a common time are executed locally at a common time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.