Patent ID: 8085088
Filing Date: 2011-12-27
Classification: H04L

Abstract:
1. An apparatus including quadrature signal demodulator circuitry, comprising: a plurality of quadrature signal demodulator circuits each of which includes signal scaling circuitry coupled to said plurality of quadrature signal demodulator circuits and responsive to one or more magnitude control signals by magnitude scaling said first and second pluralities of output signals to provide first and second pluralities of scaled output signals, wherein said first and second pluralities of output signals include first and second pluralities of current signals with said first and second mutual signal phase differences, respectively, and said signal scaling circuitry includes first current mirror circuitry responsive to said one or more magnitude control signals by scaling said first and second pluralities of current signals; and output signal combining circuitry coupled to said plurality of quadrature signal demodulator circuits and responsive to said first and second pluralities of scaled output signals by providing first and second resultant signals, respectively.