Patent ID: 6754508
Filing Date: 2004-06-22
Classification: H04B

Abstract:
An apparatus including a multiple-band wireless transceiver with quadrature conversion transmitter and receiver circuits, comprising:a plurality of outgoing data terminals for conveying a plurality of baseband outgoing data signals; a plurality of incoming data terminals for conveying a plurality of baseband incoming data signals; a quadrature signal source that provides first and second pluralities of lower frequency quadrature signals; transmitter signal generator circuitry that provides at least one local transmitter signal; transmitter signal conversion circuitry, coupled to said transmitter signal generator circuitry, that receives and converts said at least one local transmitter signal to provide a plurality of transmitter conversion signals; receiver signal generator circuitry that provides at least one local receiver signal; receiver signal conversion circuitry, coupled to said receiver signal generator circuitry, that receives and converts said at least one local receiver signal to provide a plurality of receiver conversion signals; quadrature modulation circuitry, coupled to said quadrature signal source and said plurality of outgoing data terminals, that receives and modulates said first plurality of lower frequency quadrature signals with said plurality of baseband outgoing data signals to provide a plurality of modulated outgoing data signals; up conversion circuitry, coupled to said transmitter signal conversion circuitry and said quadrature modulation circuitry, that receives and selectively up converts said plurality of modulated outgoing data signals with said plurality of transmitter conversion signals to provide a plurality of higher frequency outgoing data signals; down conversion circuitry, coupled to said receiver signal conversion circuitry, that receives and selectively down converts a plurality of higher frequency incoming data signals with said plurality of receiver conversion signals to provide a plurality of lower frequency incoming data signals; and quadrature demodulation circuitry, coupled to said down conversion circuitry and said plurality of incoming data terminals, that receives and demodulates said plurality of lower frequency incoming data signals with said second plurality of lower frequency quadrature signals to provide said plurality of baseband incoming data signals.