Systems and methods for calculating the delay between media signals
US8677437B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 7, 2008 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Dec 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/85
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The embodiments described herein provide a method and system for determining the extent to which a plurality of media signals are out of sync with each other. The method includes: receiving a first input media signal and a second input media signal wherein the first and second input media signals are in sync with each other; extracting at least one first characteristic feature from the first input media signal; extracting at least one second characteristic feature from the second input media signal; receiving a first output media signal and a second output media signal wherein the first output signal corresponds to the first input media signal after being transmitted through a network, and the second output signal corresponds to the second input media signal after being transmitted through the network; extracting the at least one first characteristic feature from the first output media signal; extracting the at least one second characteristic feature from the second output media signal; calculating a first signal delay based on the at least one first characteristic feature extracted from the first input and output media signals; calculating a second signal delay based on the at lea…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.