The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2013
Filed:
Jun. 26, 2009
Dinh Thuy Phan Huy, Paris, FR;
Joe Wiart, Lagny sur Marne, FR;
Youmni Ziade, Bourg la Reine, FR;
Jean-philippe Desbat, Paris, FR;
Dinh Thuy Phan Huy, Paris, FR;
Joe Wiart, Lagny sur Marne, FR;
Youmni Ziade, Bourg la Reine, FR;
Jean-Philippe Desbat, Paris, FR;
France Telecom, Paris, FR;
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.