Information retrieval engine
US7162482B1 · kind B1 · utility
172Cited by
37References
89Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 11, 2002 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Aug 21, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99943
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system, method, and computer program product retrieve information associated with the signals. The information retrieval can be performed on a signal by quantizing the signal, forming words, and indexing based on weights of the words. The words are formed by grouping letters together to form a number of words within predetermined threshold values. The weights of the words are determined using a binomial log likelihood ratio analysis. The present invention may be applied to identification of an unknown song.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.