Measurement of round-trip delay over a network
US7916653B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2006 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Jun 5, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/66
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a first audio waveform is produced at a first side of a network connection and then encoded and sent by a first endpoint device to a second endpoint device at a second side of the network connection. A second audio waveform is then detected after being played out by the first endpoint device, the second audio waveform having been produced at the second side of the network connection in response to the second endpoint device playing out the first audio waveform. A round-trip delay is then calculating based on a time period measured from output of the first audio waveform to detection of the second audio waveform. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.