Method and apparatus for reducing delay jitter
US7474624B2 · kind B2 · utility
5Cited by
23References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 29, 2003 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Mar 7, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/6489
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Elastic buffering takes place within a head end terminal (200). An elastic buffer (206) has the effect of shifting time at its output frame-of-reference backward by a fixed amount to compensate for unknown time differences between time at its input frame-of-reference and time at the frame-of-reference of a remote node (150). The amount of time that the elastic buffer (206) shifts data is determined by a time-stamping technique, where data packets are time stamped at the remote node (150) and the time stamp is analyzed at the head end terminal (200) to determine the time shift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.