Patent · US Expired

Synchronization

US6625112B1 · kind B1 · utility

2Cited by

14References

37Claims

0Family size

Assignee

STMICROELECTRONICS N.V. · NL

Inventors

Lennart Olsson · Luleå, SE
Gunnar Bahlenberg · Luleå, SE
Daniel Bengtsson · Luleå, SE
Siwert Hakansson · Luleå, SE
Anders Isaksson · Luleå, SE
Lars-Ake Isaksson · Luleå, SE
Mikael Isaksson · Luleå, SE
Magnus Johansson · Luleå, SE
Mauritz Lahti · Huddinge, SE
Lis-Marie Ljunggren · Luleå, SE
Hans Lundberg · Luleå, SE
Tomas Nordstrom · Luleå, SE
Sven-Rune Olofsson · Älvsbyn, SE
Tomas Stefansson · Luleå, SE
Hans Ohman · Luleå, SE
Goran Okvist · Luleå, SE

Key dates

Filing date	Mar 11, 1999
Grant date	Sep 23, 2003
Priority date	—
Expiry date	Mar 11, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/2657
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A mechanism for achieving frame synchronization in the frequency domain. In order to synchronize a receiver with a transmitter, on signal acquisition, the interval in which orthogonality exists is determined. Once this has been achieved, an argument function is calculated from the received frame. This argument function can then be used to improve the synchronization. This system is particularly suitable for use in ADSL and VDSL modems which can be used to give broad band access over copper networks. It is also relevant to broad band transmission in mobile and semi-mobile systems for transmission over radio channels.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.