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. 23, 2010
Filed:
Jan. 28, 2006
Wonjong Rhee, Palo Alto, CA (US);
John M. Cioffi, Atherton, CA (US);
Bin Lee, Palo Alto, CA (US);
Iker Almandoz, Palo Alto, CA (US);
Georgios Ginis, San Francisco, CA (US);
C. Thomas Sylke, Whitefish Bay, WI (US);
Wonjong Rhee, Palo Alto, CA (US);
John M. Cioffi, Atherton, CA (US);
Bin Lee, Palo Alto, CA (US);
Iker Almandoz, Palo Alto, CA (US);
Georgios Ginis, San Francisco, CA (US);
C. Thomas Sylke, Whitefish Bay, WI (US);
Adaptive Spectrum and Signal Alignment, Inc., Redwood City, CA (US);
Abstract
Methods, apparatus, computer program products and other embodiments model a system's channel and noise characteristics using one or more Hidden Markov Models (HMMs) by modeling the state dynamics for one or more lines and associated profiles and by learning from the line history. Besides channel and noise characteristics, user data activity also can be modeled using an HMM, where all channel, noise and user data activity can be modeled jointly using HMMs as long as the joint states are properly defined. In multi-line systems, multiple lines (for example, a set of lines in a DSL system binder) may be modeled jointly. After learning channel, noise, user data activity and/or other dynamics using HMM techniques and methods, system operation and/or configuration parameters can be controlled based on the estimated HMM, providing flexible solutions for virtually any channel, noise, user data activity and/or other dynamics.