System and method for transporting a compressed video and data bit stream over a communication channel
US7505480B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2004 |
| Grant date | Mar 17, 2009 |
| Priority date | — |
| Expiry date | Sep 21, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5672
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Digitally compressed video/audio bit streams, when transmitted over digital communication channels such as digital subscriber loop (DSL) access networks, ATM networks, satellite, or wireless digital transmission facilities, can be corrupted due to lack of sufficient channel bandwidth. This invention describes schemes to ensure lossless transmission of bit streams containing pre-compressed video signals within the communication channels. The schemes herein comprises a rate conversion system that converts the bit rate of a pre-compressed video bit stream from one bit rate to another, and that is integrated with a digital communication channel, and a means to convey the maximum channel transmission rate to the rate conversion system to allow satisfactory transmission of the bit stream from the input of the rate converter through the transmission facility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.