Adaptive filter having a small circuit scale with a low...

Details Adaptive filter having a small circuit scale with a low... Adaptive filter having a small circuit scale with a low...

2005-09-13

2005-09-13

Fan, Chieh M. (Department: 2634)

Pulse or digital communications

Equalizers

Automatic

C708S323000

Reexamination Certificate

active

06944218

ABSTRACT:
An adaptive filter includes: a plurality of delay circuits which receive a first signal, a second signal obtained by delaying the first signal, and a tap coefficient, and generates a first delay signal obtained by delaying the first signal, and a second delay signal obtained by delaying the second signal, and based upon the first delay signal and the tap coefficient, calculates a set point signal for each of the delay circuits; an addition circuit which adds the set point signals for a set point signal as a whole; and a coefficient calculation circuit which is placed in each of the delay circuits and which sequentially selects the second delay signals, and based upon the selected second delay signal and the set point signal as a whole, sequentially calculates the tap coefficients for the respective delay circuits.

REFERENCES:
patent: 6084907 (2000-07-01), Nagano et al.
patent: 6266366 (2001-07-01), Greiss et al.
patent: 6332000 (2001-12-01), Lee
patent: 6-103696 (1994-04-01), None
patent: 10-322245 (1998-12-01), None

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