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. 13, 2007
Filed:
Sep. 22, 2005
Channamallesh G. Hiremath, Plano, TX (US);
Udayan Dasgupta, Irving, TX (US);
Zigang Yang, Plano, TX (US);
Umashanker S. Iyer, Plano, TX (US);
Michael E. Locke, Santa Clara, CA (US);
Channamallesh G. Hiremath, Plano, TX (US);
Udayan Dasgupta, Irving, TX (US);
Zigang Yang, Plano, TX (US);
Umashanker S. Iyer, Plano, TX (US);
Michael E. Locke, Santa Clara, CA (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A system and method for reordering tones of a DMT signal within a communication system is described. Cross tone correlated noise in a received signal is identified and rearranged such that tones with correlated noise are spread out throughout the received signal before being processed by a decoder such as, Viterbi decoder. In an embodiment, two tones with the most correlated noise are placed at each end of the sequence of tones presented to the Viterbi decoder. In some embodiment, the tones with correlated noise can be spread such that two adjacent tones with correlated noise have a minimum distance of at least three tones between them at the input to the Viterbi decoder. In other embodiment, tones in the received signal can be processed in various kinds of interleavers for reordering according to the interleaver scheme.