Transcoding audio data by a proxy computer on behalf of a client computer
US6496868B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2001 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Sep 17, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/478
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A proxy server transcodes audio data on behalf of a client computer prior to transmitting the audio data to the client computer. In response to a request from the client computer, the proxy server obtains the audio data from a remote server. If the proxy server determines that transcoding is appropriate, the proxy server transcodes the audio data and transmits the transcoded audio data to the client computer. Transcoding can include changing the type of the audio file, compressing the audio data, reducing the number of audio channels, or reducing the data sampling rate. The proxy server determines the extent and type of transcoding based on file formats that the client computer can process, the size of the requested audio file, the memory capacity of the client computer, the bandwidth of the connection between the proxy server and the client computer, and the desired level of audio quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.