Method for eliminating an unwanted signal from a mixture via...

Details Method for eliminating an unwanted signal from a mixture via... Method for eliminating an unwanted signal from a mixture via...

2007-11-27

2007-11-27

Chin, Vivian (Department: 2615)

Electrical audio signal processing systems and devices

Noise or distortion suppression

Using signal channel and noise channel

C381S094100, C381S094200, C381S094300, C381S073100, C704S233000, C704S205000

Reexamination Certificate

active

10678372

ABSTRACT:
A method is presented for eliminating an unwanted signal (e.g., background music, interference, etc.) from a mixture of a desired signal and the unwanted signal via time-frequency masking. Given a mixture of the desired signal and the unwanted signal, the goal of the present invention is to eliminate or at least reduce the effects of the unwanted signal to obtain an estimate of the desired signal.

REFERENCES:
patent: 5874916 (1999-02-01), Desiardins
patent: 7158933 (2007-01-01), Balan et al.
patent: 2002/0126856 (2002-09-01), Krasny et al.
patent: 2002/0172378 (2002-11-01), Bizjak
Scott Richar,Radu, Blan and Justinian Rosca, Real-Time Time-Frequency Based Blind Source Seperation, Dec. 2001, ICA2001.

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