System and methods for providing automatic classification of media entities according to tempo properties
US6657117B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2001 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Aug 9, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4665
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In connection with a classification system for classifying media entities that merges perceptual classification techniques and digital signal processing classification techniques for improved classification of media entities, a system and methods are provided for automatically classifying and characterizing tempo properties of media entities. Such a system and methods may be useful for the indexing of a database or other storage collection of media entities, such as media entities that are audio files, or have portions that are audio files. The methods also help to determine media entities that have similar, or dissimilar as a request may indicate, tempo(s) by utilizing classification chain techniques that test distances between media entities in terms of their properties. For example, a neighborhood of songs may be determined within which each song has similar tempo characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.