Noise-canceling device for voice communication terminal...

Details Noise-canceling device for voice communication terminal... Noise-canceling device for voice communication terminal...

2011-07-19

2011-07-19

Rider, Justin W (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C379S388070, C379S392010, C704S233000, C704S270000

Reexamination Certificate

active

07983908

ABSTRACT:
A noise-canceling device of a voice communication terminal that removes noise elements included in received voice signals. The device comprises: a digital filter array that exhibits filter qualities in response to a coefficient setting signal showing each supplied arrays of filter coefficients, and includes a first-stage filter that receives the received voice signals as well as multiple later-stage filters connected thereto in a straight line; a filter qualities designator that generates input designation that designates each qualities of the multiple digital filters forming the digital filters array; and a filter coefficient setter that retains multiple arrays of filter coefficients, extracts a filter coefficient array corresponding to the designation input from among the multiple filter coefficient arrays, and supplies to each multiple digital filters. The noise-canceling device for a voice communication terminal provided to obtain desired filter qualities in real-time without calculation of filter coefficients.

REFERENCES:
patent: 5406622 (1995-04-01), Silverberg et al.
patent: 1533898 (2005-05-01), None
patent: 63-269613 (1988-11-01), None
patent: 02-92225 (1990-07-01), None
patent: 05-252253 (1993-09-01), None
patent: 7-15264 (1995-01-01), None
patent: 07-42236 (1995-07-01), None
patent: 07-235969 (1995-09-01), None
patent: 08-234746 (1996-09-01), None
patent: 2000-082961 (2000-03-01), None
patent: 2001-185991 (2001-07-01), None
patent: 2001-285409 (2001-10-01), None
patent: 2005-244541 (2005-09-01), None
Machine Translation of Takeshi (JP-2001-185991), in which the Japanese document was supplied by applicant on Dec. 15, 2008.
Foreign Office Action issued on Sep. 24, 2008 in the corresponding JP application 2006-115351 with an English translation.

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