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:
Nov. 25, 2008
Filed:
Jun. 04, 2004
Patrick Duvaut, Tinton Falls, NJ (US);
Ehud Langberg, Wayside, NJ (US);
Julien Pons, Eatonton, NJ (US);
William Scholtz, Red Bank, NJ (US);
Patrick Duvaut, Tinton Falls, NJ (US);
Ehud Langberg, Wayside, NJ (US);
Julien Pons, Eatonton, NJ (US);
William Scholtz, Red Bank, NJ (US);
Brooktree Broadband Holding, Inc., Newport Beach, CA (US);
Abstract
Disclosed herein are various techniques for multilevel channel coding. For a given binary word comprising a plurality of bits, the least-significant bit may be encoded by a boosted coding technique, such as turbo channel coding or low density parity check (LDPC) channel coding. A subset of the remaining bits of the binary word may be encoded using trellis coded modulation (TCM) coding. The results of the boosted channel coding and the TCM coding may be mapped to one or more symbols. The one or more symbols then may be transmitted to a receiver using transmission techniques well known to those skilled in the art. The present invention finds particular benefit in digital subscriber line (DSL)-based systems in accord with the ITU G.922.1 Recommendation and similar standards.