Method and apparatus for compression rate selection
US6606287B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2000 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Jan 26, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/85
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method and apparatus for compression rate selection. One embodiment of the present invention automatically selects a compression rate for a media signal. The embodiment determines an optimal compression rate for a media signal, compresses the signal at that rate, and stores the signal for later playback. An optimal compression rate is one which stores the media signal in the least amount of storage space without unacceptably degrading the media signal. One embodiment uses information about the media signal to determine a compression rate. In one embodiment, the information is automatically generated. One embodiment automatically generates the information using meta-information (e.g., channel, genre, etc.). Another embodiment automatically generates information using natural language parsing of a media signal description. In another embodiment, the information is generated through manual entry. In yet another embodiment, the information is generated by automatically compressing a media signal at a first rate and examining the compressed signal to determine how the compression rate should be modified. In one embodiment, the information is generated at…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.