Adaptive transversal filter

Details Adaptive transversal filter Adaptive transversal filter

H - Electricity

03

H

340/72, 328/0.3

H03H 21/00 (2006.01) H04B 3/23 (2006.01) H04L 25/03 (2006.01)

Patent

CA 1261008

ABSTRACT: Adaptive transversal filter. Adaptive transversal filter for use in three signal level signals, arranged to cancel shifts in the two extreme signal levels relative to the central signal level, information signalizing whether the signal level is the cen- tral signal level being coupled to first delay means (2) having N+1 connecting terminals, and information signalizing whether the signal level is either one or the other extreme signal level being coupled to second delay means (4) having N+1 connecting terminals and comprising first and second coefficient registers(COO-CON; CO-CsN) each containing N+1 coefficients; components (8, 9) for always multiplying one of the coefficients by an associated connecting terminal sig- nal of the delay means, a device (10) for adding together all the multiplying results obtained for providing a cancella- tion signal and an arrangement always blocking the signal from a connecting terminal of the second delay means when this signal represents neither the one nor the other extreme signal level. (Figure 1).

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