COMMUNICATION DEVICE WITH EFFICIENT ZERO-CROSSING GENERATOR

申请公布号：WO1996007234(A1)

申请号：US1995010565

申请日期：1995.08.18

申请公布日期：1996.03.07

摘要：<p>A communication device (100) includes first (104) and second (108) mixers for producing first in-phase and quadrature phase component, respectively. Additional zero-crossing points are efficiently generated by adding and subtracting the in-phase and quadrature components in a summer (116) and a subtractor (118), respectively. The additional zero-crossing points are generated by the formation of second in-phase and quadrature components. A zero-crossing detector (128) is used for detecting zero crossings using the first and second in-phase components and the first and second quadrature phase components.</p>

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