Patent ID: 7773693
Filing Date: 2010-08-10
Classification: H03F

Abstract:
1. An RF transmitter comprising: a quadrature source data block capable of receiving an input in-phase (I) data stream and an input quadrature (Q) data stream and generating therefrom an in-phase absolute value (|I|′) data signal; and a quadrature absolute value (|Q|′) data signal; and a quadrature modulation block comprising wherein the quadrature source data block also generates sign signals sgn(I) and sgn(Q) indicating the signs of the I data stream and Q data stream respectively and wherein sgn(I) and a digital carrier frequency are input to a first XOR operation to produce complementary terms to bi-phase modulate the in-phase (I) carrier component and wherein sgn(Q) and the digital carrier frequency are input to a second XOR operation to produce complementary terms to bi-phase modulate the quadrature (Q) carrier component separately.