Method and device for the transmission of waves
US8102328B2 · kind B2 · utility
3Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2007 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Jul 9, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/446
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Method for focusing an electromagnetic or acoustic wave on a point near which one or more diffusers are placed, comprising a learning step in which the pulsed responses hij(t) between the focus point and each antenna of the network are determined. Waves corresponding to signals Sji(t)=Si(t)hij(−t), where Si(t) is a function of time and hij(−t) is a temporal inversion of the pulsed response hij(t), can then be transmitted form said antennas of the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.