Sensor network system for acquiring high quality speech signals and communication method therefor
US8600443B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2012 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Jul 12, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/401
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sensor network system including node devices connected in a network via predetermined propagation paths collects data measured at each node device to be aggregated into one base station via a time-synchronized sensor network system. The base station calculates a position of the signal source based on the angle estimation value of the signal from each node device and position information thereof, designates a node device located nearest to the signal source as a cluster head node device, and transmits information of the position of the signal source and the designated cluster head node device to each node device, to cluster each node device located within the number of hops from the cluster head node device as a node device belonging to each cluster. Each node device performs an emphasizing process on the received signal from the signal source, and transmits an emphasized signal to the base station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.