Apparatus and method for echo-cancellation

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United States of America Patent

PATENT NO 8045703
APP PUB NO 20050180559A1
SERIAL NO

10514689

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Abstract

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There is disclosed a multi-carrier transceiver system for use in echo cancellation. The transceiver system is arranged to generate from input data a multicarrier transmit signal comprising a plurality of multi-carrier data blocks. The transceiver system also has a multi-carrier signal receiver responsive to an input multi-carrier receive signal received from a remote signal transmitter. An echo canceller is arranged to generate from a pair of multi-carrier data blocks (u) a set of frequency-domain echo parameters for use in generating an echo signal, to generate the echo signal using the frequency-domain echo parameters, and to input the echo signal to the multi-carrier signal receiver for use in generating an echo-cancelled receive signal from the input receive signal and the echo signal.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
STMICROELECTRONICS N.V.AMSTERDAM232

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bonaventura, Marco Venice, IT 4 17
Hug, Roland Piétrain, BE 14 29
Pisoni, Fabio Busto Garolfo, IT 5 35

Cited Art Landscape

Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (1)
* 5217596 Electrode probe for use in aqueous environments of high temperature and high radiation 15 1991
 
APPLE INC. (1)
* 6781965 Method and apparatus for echo cancellation updates in a multicarrier transceiver system 4 2000
 
VIRATA CORPORATION (1)
* 2003/0112,887 Method and system for implementing weighted vector error echo cancellers 14 2001
 
NIPPON PAPER INDUSTRIES CO., LTD. (1)
* 5281474 Heat-sensitive adhesive sheet and information recorded material using the same 9 1991
 
U.S. PHILIPS CORPORATION (1)
* 4903247 Digital echo canceller 53 1988
 
ALCATEL LUCENT (1)
* 6519291 Reduction of interference in discrete multi-tone (DMT) based communications systems 64 1998
 
MICROSOFT TECHNOLOGY LICENSING, LLC (1)
* 6473409 Adaptive filtering system and method for adaptively canceling echoes and reducing noise in digital signals 63 1999
 
SILICON VALLEY BANK (2)
* 5285474 Method for equalizing a multicarrier signal in a multicarrier communication system 376 1992
* 5317596 Method and apparatus for echo cancellation with discrete multitone modulation 113 1992
 
MOTOROLA SOLUTIONS, INC. (1)
6023719 Signal processor and method for fast Fourier transformation 4 1997
* Cited By Examiner

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