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:
Oct. 07, 2003
Filed:
Nov. 12, 1999
Applicant:
Inventor:
Muhammad R. Karim, Wayside, NJ (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 1/100 ;
U.S. Cl.
CPC ...
H04J 1/100 ;
Abstract
A method for use in a receiver in an orthogonal frequency division multiplexing-based data transmission system of detecting frame synchronization with respect to a signal received from a transmitter in the system comprises the following steps. First, the received signal is searched at a first predetermined sub-carrier frequency and at least a second predetermined sub-carrier frequency for a previously inserted data pattern. Then a frame boundary in the received signal is identified as a position where the data pattern is detected at both the first predetermined sub-carrier frequency and the second predetermined sub-carrier frequency.