Automated sensor signal matching
US8855330B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 21, 2008 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Aug 27, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method for matching first and second signals includes transforming, over a selected frequency band, the first and second signals into the frequency domain such that frequency components of the first and second signals are assigned to associated frequency bins, generating a scaling ratio associated with each frequency bin, and for at least one of the two signals, or at least a third signal derived from one of the two signals, scaling frequency components associated with each frequency bin by the scaling ratio associated with that frequency bin. The generating comprises determining, during a non-startup period, a signal ratio of the first and second signals for each frequency bin, determining the usability of each signal ratio, and designating a signal ratio as a scaling ratio if it is determined to be usable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.