Low-latency automatic repeat request packet recovery mechanism for media streams
US7522528B2 · kind B2 · utility
9Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2005 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Jun 11, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/2854
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An Automatic Repeat request (ARQ) error correction method optimized for protecting real-time audio-video streams for transmission over packet-switched networks. Embodiments of this invention provide bandwidth-efficient and low-latency ARQ for both variable and constant bit-rate audio and video streams. Embodiments of this invention use timing constraints to limit ARQ latency and thereby facilitate the use of ARQ packet recovery for the transport of both constant bit rate and variable bit rate media streams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.