Method of dynamic control of the focusing of a signal pre-equalized by time reversal
US8457217B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2009 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Mar 26, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03802
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is provided for dynamically controlling the focus of a signal pre-equalized by time reversal of an estimated propagation channel between a source antenna of a source communicating entity and a destination antenna of a destination communicating entity at a current instant, said method comprising steps for evaluation by the destination communicating entity of a relative focus quality of the pre-equalized signal sent by the source antenna and received by the destination antenna, compared to a quality at a focal point, and if the evaluated relative focus quality does not satisfy a predetermined criterion, for request, by the destination communicating entity, to modify the focus addressed to the source communicating entity for a subsequent instant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.