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:
Mar. 26, 2002
Filed:
Jun. 23, 1999
Mikael Isaksson, Lulea, SE;
Magnus Johansson, Lulea, SE;
Harry Tonvall, Lulea, SE;
Lennart Olsson, Lulea, SE;
Tomas Stefansson, Lulea, SE;
Hans Ohman, Lulea, SE;
Gunnar Bahlenberg, Lulea, SE;
Anders Isaksson, Lulea, SE;
Goran Okvist, Lulea, SE;
Lis-Marie Ljunggren, Lulea, SE;
Tomas Nordstrom, Lulea, SE;
Lars-Ake Isaksson, Lulea, SE;
Daniel Bengtsson, Lulea, SE;
Siwert Håkansson, Lulea, SE;
Ye Wen, Lulea, SE;
Stmicroelectronics N.V., Amsterdam, NL;
Abstract
A multi-carrier transmission system, such as a DMT system. A receiver must be able to recover a sampling clock that is very accurately synchronized to a transmitter sampling clock. Typically, synchronization is achieved by using a reserved carrier, the pilot carrier, which is transmitted with a fixed phase. The receiver sampling clock is then phase locked to the pilot carrier. Frame timing can be recovered by using a correlation technique. Thus an improved method of recovering a sample clock and phase locking the sampling clock to a pilot carrier is provided.