Systems and methods for multimedia time stretching
US7676142B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 9, 2003 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Sep 30, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8233
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention is related to methods and apparatus that can advantageously alter a playback rate of a multimedia presentation, such as a video clip. One embodiment of the invention permits a multimedia presentation to be sped up or slowed down with a controlled change in pitch of the sped up or slowed down audio. In one embodiment, this controlled change in the pitch permits the sped up or slowed down audio to retain a same sounding pitch as at normal playback speeds. In one embodiment, a duration is specified and playback of the video clip is advantageously sped to complete playback within the specified duration. In another embodiment, a finish by a time is specified, and the playback of the video clip is advantageously sped to complete playback by the specified time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.