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. 30, 2003
Filed:
Sep. 22, 1998
Miguel Peeters, Brussels, BE;
Thierry Pollet, Ghent, BE;
Alcatel, Paris, FR;
Abstract
In a multi-carrier transmission system, a clock timing error (&tgr; ) is calculated at the receiver's side and used for synchronization between a transmitting modem and a receiving modem (RX1). The clock timing error (&tgr; ) is calculated from phase errors (&phgr; , &phgr; , . . . , &phgr; , . . . , &phgr; ) detected for a plurality of pilot carriers during a tracking mode in such a way that the share (A ) of a phase error (&phgr; ) detected for a particular pilot carrier in the clock timing error (&tgr; ) depends on the transmission quality (SNR ) of that pilot carrier over the transmission medium in between the two modems. In this way, the robustness of the synchronization for narrowband noise near a pilot carrier is improved significantly.