Method for reducing a computational complexity in non-linear...

Details Method for reducing a computational complexity in non-linear... Method for reducing a computational complexity in non-linear...

2005-05-19

2010-10-12

Jamal, Alexander (Department: 2614)

Telephonic communications

Echo cancellation or suppression

Combined diverse function

Reexamination Certificate

active

07813496

ABSTRACT:
A method for creating a form of a non-linear filter suitable for reducing a computational complexity is proposed. The filter is resolved into polyphase components in such a way that the polyphase components can be interchanged with a conversion of the sampling rate of a signal to be sent to the filter or of a signal to be emitted by the filter. Corresponding filters and filter arrangements are also proposed. In this way, a computational complexity for calculating the signal to be emitted by the filter can be significantly simplified. The invention can be used in echo compensation.

REFERENCES:
patent: 6717981 (2004-04-01), Mohindra
patent: 7145487 (2006-12-01), Anderson et al.
Fliege, Norbert, “Multiraten-Signalverarbeitung: Theorie und Anwendungen,” B.G. Teubner Stuttgart, pp. 1-8, 31, 40-44, 114-140 (1993). <Precise Explanation Included>.
Gadre, Vikram M. et al., “Using Multirate Architectures in Realizing Quadratic Volterra Kernels,” IEEE Transactions on Signal Processing, vol. 44, No. 11, pp. 2891-2895 (Nov. 1996).
Küch, F. et al., “Nonlinear Line Echo Cancellation Using a Simplified Second Order Volterra Filter,” IEEE International Conference on Acoustics, Speech, and Signal Processing, vol. 2, pp. 1117-1120 (2002).
Vaidyanathan, P.P., “Multirate Digital Filters, Filter Banks, Polyphase Networks, and Applications: A Tutorial,” Proceedings of the IEEE, vol. 78, No. 1, pp. 56-93 (Jan. 1990).

Affiliated with

Also associated with

Rating

Method for reducing a computational complexity in non-linear... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for reducing a computational complexity in non-linear..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for reducing a computational complexity in non-linear... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4193494