Automatic equalizing system with dft or fft

Details Automatic equalizing system with dft or fft Automatic equalizing system with dft or fft

H - Electricity

04

R

333/28, 179/8

H04R 3/04 (2006.01) H03G 5/16 (2006.01) H03G 9/18 (2006.01) H04R 29/00 (2006.01)

Patent

CA 1210095

ABSTRACT The equalizing arrangement in accordance with the invention comprises an equalizing unit (4) for correcting the frequency characteristic of an electric signal applied to its first input (7) under the influence of a control signal (10) applied to its second input (8) and for supplying a corrected electric signal to its output (9), and a frequency analyzing unit (16) having a first input (15) coupled to a point in the signal path between the input terminal (1) and the first input (7) of the equalizing unit (4), a second input (17) coupled to the pick-up means (14) and an output (19) for supplying the control signal (10). The analyzing unit (16) is constructed to apply a Fourier transform to the previously digitized input signals x(t) and y(t) applied to its first and its second input, to compute Fourier-transformed signals Fx(f) and Fy(f) of these two signals and to compute a transfer function between these two signals. Preferably the frequency analyzing unit is further constructed to compute a coherence function ?2xy(f) between the two signals and, in determining the control signal, to ignore the values of the transfer function for those frequencies fi for which ?2xy is smaller than a specific value, for example 0.8. By means of the arrangement in accordance with the invention a better equalization can be achieved and the distortion of the output signal of the arrangement is low.

447837

Affiliated with

Also associated with

Rating

Automatic equalizing system with dft or fft does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic equalizing system with dft or fft, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic equalizing system with dft or fft will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1339427