Apparatus and methods for active noise suppression in stereo mul

Details Apparatus and methods for active noise suppression in stereo mul Apparatus and methods for active noise suppression in stereo mul

1991-03-29

1993-07-06

Ng, Jin F.

Electrical audio signal processing systems and devices

Noise or distortion suppression

Interpolation

381 13, 358336, 371 65, H04B 1500

Patent

active

052260887

ABSTRACT:
Method and apparatus for active noise suppression in stereo multiplex signals particularly in an automotive radio receiver includes an insertion circuit where the disturbed signal section is replaced with an insertion signal formed by sampled signal values/signal sections which are located before and/or after the disturbed signal section. Basic-delay stages ensure that only those sample values are used for the insertion signal which are separated from the respective instant of insertion by a time interval having an integral relationship nT to the period T of a carrier contained in the stereo multiplex signal (where n is a positive integer).

REFERENCES:
patent: 4501014 (1985-02-01), Bluthgen
patent: 4574390 (1986-03-01), Hirohashi et al.
patent: 4689759 (1987-08-01), Anouar et al.

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