Alignment of signal copies from an asynchronous sensor network
US9426007B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 22, 2013 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Sep 3, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2209/845
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Various embodiments associated with resampling signal copies for asynchronous sensors are described. A plurality of asynchronous sensors that sample signals at different frequencies can be distributed in an area. These sensors can sense a signal of interest for an entity. The sensors can send copies of the signal of interest that they have sensed to a system of the entity for processing. However, since the sensors are asynchronous the copies are sampled at different sampling time periods or sampling frequencies. A specific copy of the signal of interest can be selected from among the copies as a reference to estimate relative sampling frequency offset and the remaining copies can be resampled such that their resampled sampling time period or sampling frequency align with the reference signal. With the copies aligned, combination of the copies occurs and further processing can take place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.