High-speed signal search method device and recording medium for the same
US6826350B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1999 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | May 4, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/58
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The object of the present invention is to provide a high-speed signal search method, device, and a recording medium for the same that can obtain detection results equivalent to precisely moving a window over the entire region of the input signal even when there is not precise movement of a window over the entire signal.The present invention provides a first step that generates a feature quantity sequence for a pre-recorded reference signal; a second step that sets the input signal window for the input signal that has been input; a third step that generates a feature quantity sequence for the input signal of this input signal window; a fourth step that calculates the input signal similarity value showing the degree of similarity between the feature quantity sequence generated in the first step and the feature quantity sequence generated in the third step; a fifth step that calculates the skip width showing the amount that the input signal can be moved; and a sixth step that determines the position of the input signal window based on the skip width calculated in the fifth step, sets the input signal window to this position, and calculates the input signal similarity value for each po…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.