Patent ID: 7282982

Claim:
Mixer-system comprising gain-blocks ( 1 - 4 ) and switches ( 5 - 8 ), wherein control electrodes of a first ( 1 ), a second ( 2 ), a third ( 3 ) and a fourth ( 4 ) gain-block constitute data inputs for guiding data input signals, with first main electrodes of the first ( 1 ) and third ( 3 ) gain-block being coupled to each other and to a first impedance ( 11 ) and with first main electrodes of the second ( 2 ) and fourth ( 4 ) gain-block being coupled to each other and to a second impedance ( 12 ) for constituting outputs ( 32 , 33 ) for guiding output signals, and with second main electrodes of the first ( 1 ) and second ( 2 ) gain-block being coupled to each other via a first switch ( 5 ) and with second main electrodes of the third ( 3 ) and fourth gain-block ( 4 ) being coupled to each other via a second switch ( 6 ), with control electrodes of the switches ( 5 , 6 ) constituting oscillation inputs for guiding oscillation signals.