Best quality given a maximum bit rate
US9344721B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2011 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | May 20, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/36
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to flow control of a digital data stream that is to be transmitted with limited bit rate. The present invention provides a mix between CQ and CB. This in order to, in real time, ensure best possible quality of a data stream given a maximum available band with. This is useful both when saving a data stream to a data storage with a limited size and when playing the data stream in real time. In particular the invention relates to a method for flow control of a digital data stream that is to be sent with a limited transmission bit rate R. The method comprises encoding each data frame of a digital data stream into an encoded data frame comprising n quality layers and thereafter balancing the output of the encoder in order to achieve a constant bit rate on the output. The invention also relates to a corresponding data recorder and computer program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.