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:
Dec. 14, 2010
Filed:
Feb. 01, 2006
Wonjong Rhee, Palo Alto, CA (US);
Iker Almandoz, Palo Alto, CA (US);
John M. Cioffi, Atherton, CA (US);
Bin Lee, Palo Alto, CA (US);
Georgios Ginis, San Francisco, CA (US);
Wonjong Rhee, Palo Alto, CA (US);
Iker Almandoz, Palo Alto, CA (US);
John M. Cioffi, Atherton, CA (US);
Bin Lee, Palo Alto, CA (US);
Georgios Ginis, San Francisco, CA (US);
Adaptive Spectrum and Signal Alignment, Inc., Redwood, CA (US);
Abstract
Loading and ordering techniques are provided for one-sided and two-sided vectored line groups, as well as loading methodologies that also can be used on a single line, in communication systems such as Digital Subscriber Line (DSL) binders. In particular, a method for loading bits into a plurality of lines in a vectored DSL system using Discrete MultiTone (DMT) modulation is disclosed. The method iteratively determines two or more of the following sequentially: line ordering for each tone; power spectral density for the transmitted signal of each line; and bit allocation for the signal of each line. In some embodiments, line ordering may include order-swapping which may assign a first line to a first initial position, assign a second line to a second initial position, move the first line to the second initial position, and move the second line to the first initial position.