Real-time video/audio quality adjustment method
US6665002B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 2001 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Mar 20, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/2662
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for transmitting audio and visual data over a communication means. If the bandwidth over a communication means drops below a predetermined level a video conference system can begin transmitting visual data in a QCIF format, another system receiving the data and scaling the data from the QCIF format to a CIF format. In another embodiment of the invention if the bandwidth drops below a first or second predetermined level the audio format can be altered to lower the bandwidth requirements accordingly. In a third embodiment the methods for lowering the utilized bandwidth of the audio and visual data can be used in conjunction with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.