US Patent No: 8,045,703 - Analytics, PDF, Full Text and PAIR Access

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Apparatus and method for echo-cancellation

ALSO PUBLISHED AS: 20050180559

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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.AMSTERDAM288

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bonaventura, Marco Venezia, IT 7 7
Hug, Roland Pietran, BE 15 11
Pisoni, Fabio Busto Garolfo, IT 10 17

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SILICON VALLEY BANK (2)
5,285,474 Method for equalizing a multicarrier signal in a multicarrier communication system 350 1992
5,317,596 Method and apparatus for echo cancellation with discrete multitone modulation 106 1992
 
ALCATEL LUCENT (1)
6,519,291 Reduction of interference in discrete multi-tone (DMT) based communications systems 58 1998
 
FREESCALE SEMICONDUCTOR, INC. (1)
6,781,965 Method and apparatus for echo cancellation updates in a multicarrier transceiver system 3 2000
 
GENERAL ELECTRIC COMPANY (1)
5,217,596 Electrode probe for use in aqueous environments of high temperature and high radiation 15 1991
 
MICROSOFT CORPORATION (1)
6,473,409 Adaptive filtering system and method for adaptively canceling echoes and reducing noise in digital signals 58 1999
 
MOTOROLA SOLUTIONS, INC. (1)
6,023,719 Signal processor and method for fast Fourier transformation 4 1997
 
NIPPON PAPER INDUSTRIES CO., LTD. (1)
5,281,474 Heat-sensitive adhesive sheet and information recorded material using the same 9 1991
 
U.S. PHILIPS CORPORATION (1)
4,903,247 Digital echo canceller 51 1988
 
VIRATA CORPORATION (1)
2003/0112,887 Method and system for implementing weighted vector error echo cancellers 11 2001

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