Correlation-based method for representing long-timescale structure in time-series data
US9367612B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2011 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Apr 7, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/60
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system identifies a set of initial segments of a time-based data item, such as audio. The segments can be defined at regular time intervals within the time-based data item. The initial segments are short segments. The system computes a short-timescale vectorial representation for each initial segment and compares the short-timescale vectorial representation for each initial segment with other short-timescale vectorial representations of the segments in a time duration within the time-based data item (e.g., audio) immediately preceding or immediately following the initial segment. The system generates a representation of long-timescale information for the time-based data item based on a comparison of the short-timescale vectorial representations of the initial segments and the short-timescale vectorial representations of immediate segments. The representation of long-timescale information identifies an underlying repetition structure of the time-based data item, such as rhythm or phrasing in an audio item.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.