Method and systems for dynamic hybrid packet loss recovery for video transmission over lossy packet-based network
US6289054A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2000 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Apr 27, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6437
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems for performing packet loss recovery when transmitting compressed video over a lossy packet-based network include transmitting packets of compressed video data from a sender to a receiver. In response to detecting lost or erroneously received packets, the receiver transmits a retransmission request to the sender. In response to receiving the retransmission request, the sender changes the periodic temporal dependency distance of a frame to be transmitted such that the frame depends on the frame associated with the retransmitted packets. The receiver receives the retransmitted packets and restores the frame corresponding the retransmitted packets in a frame buffer. The receiver uses the restored frame to decode a frame transmitted after the retransmitted packets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.