US Patent No: 5,285,474

Number of patents in Portfolio can not be more than 2000

Method for equalizing a multicarrier signal in a multicarrier communication system

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Abstract

A method for optimizing a set of equalizer parameters of an equalizer to be used to equalize a multicarrier data signal that has been transmitted through a distorting channel, comprised of the steps of initializing the parameters, repeatedly sending a training sequence through the channel to the receiver, using the equalizer parameters, the received sequence, and a local replica of the training sequence to update a set of channel target response parameters, windowing the channel target response parameters, using the channel target response parameters, the received sequence and the local replica to update the equalizer parameters, and windowing the equalizer parameters. This training process is repeated until a predetermined convergence condition is detected.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITYPALO ALTO, CA2686
SILICON VALLEY BANKSANTA CLARA, CA631

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chow, Jacky Mountain View, CA 3 373
Cioffi, John M Atherton, CA 104 2794

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Patent Info (Count) # Cites Year
 
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7,391,714 Point to multipoint system and process for the transmission over the electricity network of digital data 6 2003
 
MINDSPEED TECHNOLOGIES, INC. (1)
6,829,296 Spectrally flat time domain equalizer and methods 14 2000
 
MITSUBISHI ELECTRIC RESEARCH LABORATORIES, INC. (1)
7,016,405 Signal circulation for adaptive signal equalization in digital communication systems 2 2002
 
NATIONAL SEMICONDUCTOR CORPORATION (1)
6,320,901 Method for fast off-line training for discrete multitone transmissions 14 1999
 
NATIONAL UNIVERSITY OF SINGAPORE (1)
6,438,161 Method of designing an equalizer 5 1999
 
NOKIA MOBILE PHONES LTD. (1)
6,792,035 Method and apparatus for reducing the effect of multipath propagation in a received signal 12 2000
 
NOKIA SIEMENS NETWORKS GMBH & CO. KG (1)
6,353,630 Method for the parameterization of a reception means as well as a corresponding reception means and radio station 10 1997
 
OL SECURITY LIMITED LIABILITY COMPANY (1)
5,963,599 Truncated maximum likelihood sequence estimator 14 1997
 
PANASONIC COMMUNICATIONS CO., LTD. (1)
6,928,110 Adaptive equalizer training circuit, modem apparatus and communication apparatus 10 2001
 
SAMSUNG ELECTRONICS CO., LTD. (1)
5,903,608 Adaptive bit swapping method and device for discrete multitone system 65 1997
 
SILICON VALLEY BANK (1)
5,519,731 ADSL compatible discrete multi-tone apparatus for mitigation of T1 noise 172 1994
 
THOMSON LICENSING (1)
6,771,591 Method and system for processing orthogonal frequency division multiplexed signals 39 2000
 
U.S. PHILIPS CORPORATION (1)
5,796,814 Digital transmission system comprising a receiver with cascaded equalizers 23 1996
 
UTSTARCOM, INC. (1)
6,263,016 Methods for interfacing a subscriber link to digital networks 48 1998
 
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