Patent ID: 6452424
Filing Date: 2002-09-17
Classification: H03H

Abstract:
A multiple channel signal processing circuit comprising:a first input for receiving a first input signal for a first channel; a second input for receiving a second input signal for a second channel; a passive network coupled to said first and second inputs, said passive network configured to obtain a sample of said first input signal and a sample of said second input signal; a single shared active electronic component coupled to said passive network, said single shared active electronic component configured to alternately process said sample of said first input signal and said sample of said second input signal; a channel switching mechanism coupled to said passive network and said single shared active electronic component, said channel switching mechanism configured to switch between processing states associated with said first channel and said second channel during a sampling period; a first output section directly coupled to said single shared active electronic component, said first output section configured to provide a first output signal; a second output section directly coupled to said single shared active electronic component, said second output section configured to provide a second output signal; wherein said passive network and said single shared active electronic component are responsive to said channel switching mechanism to obtain a current sample of said first input signal during a first time period, to obtain a current sample of said second input signal during a second time period subsequent to said first time period, and to process said current sample of said first input signal during said second time period.