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:
Sep. 09, 2008
Filed:
Nov. 20, 2003
Juan Miguel Gavillero Martín, Burjasot, ES;
Juan Carlos Riveiro Insua, Valencia, ES;
Salvador Iranzo Molinero, Valencia, ES;
Nils Hakan Fouren, Barcelona, ES;
Francisco Javier Jimenez Marquina, Valencia, ES;
Jorge Vicente Blasco Claret, Valencia, ES;
Juan Miguel Gavillero Martín, Burjasot, ES;
Juan Carlos Riveiro Insua, Valencia, ES;
Salvador Iranzo Molinero, Valencia, ES;
Nils Hakan Fouren, Barcelona, ES;
Francisco Javier Jimenez Marquina, Valencia, ES;
Jorge Vicente Blasco Claret, Valencia, ES;
Di Seno de Sistemas en Silicio SA, Paterna (Valencia), ES;
Abstract
The system in this invention is applicable to bi-directional communication over the electricity network between a head-end and a plurality of users, and permits the synchronization in time and frequency of multiple users in a multi-carrier OFDM communication system. It is characterized in that it consists of the generation of synchronization sequences by means of two identical synchronization symbols, periodically transmitted in the downstream, from the head-end to the users to estimate and correct the sampling frequency and simultaneously estimate the moment in which each OFDM symbol commences.