Circuit for controlling the weighting coefficients in an...

Details Circuit for controlling the weighting coefficients in an... Circuit for controlling the weighting coefficients in an...

H - Electricity

03

H

333/27

H03H 11/06 (2006.01) H04B 3/14 (2006.01)

Patent

CA 1141443

ABSTRACT: In an analog adaptive time-domain equalizer, the weighting factor applied by each tapping or weighting circuit in response to a control signal is stabilized by using two resistance elements connected as arms of a bridge to which a tapped signal is applied, the resistance of the elements being variable in opposite senses in response to the control signal thus enabling both positive and negative weighting factors to be applied. The resistance of the elements is monitored and compared with the control signal to derive an error signal controlling biases applied to the elements to render their resistance linearly proportional to the amplitude of the control signal.

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