Trick mode audio playback
US7149412B2 · kind B2 · utility
7Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2002 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Feb 10, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for playing a digital audio recording at a speed other than 1X, the method comprises retrieving stored digital audio information represented in a plurality of audio frames. A portion of the plurality of audio frames are ranked according to an energy content in the portion of audio frames. Audio frames having least energy content in accordance with the ranking are deleted from the portion of the plurality of audio frames. Remaining ones of the portion of audio frames following deletion are selected to form an audio trick mode playback signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.