Patent ID: 7466972

Claim:
A near zero intermediate frequency wireless system comprising: an input configured to receive an analog signal; a mixer coupled to the input and configured to mix the analog signal with a local oscillator signal to create a mixed signal having a low intermediate frequency of between 101 kHz and 199 kHz, wherein a direct current (DC) compensation technique applied at an output of the mixer minimizes a DC component introduced into the mixed signal at least partly by the local oscillator signal; a first filter coupled to the mixer and configured to minimize an interferer portion of the mixed signal; a second filter coupled to a variable gain amplifier (VGA) positioned after the first filter, wherein the second filter is configured to further minimize the interferer portion of the mixed signal; means for digitizing the mixed signal; means for performing DC compensation and downconversion on the mixed signal, wherein the DC compensation is performed prior to the downconversion; and a third filter coupled to the means for performing DC compensation and downconversion, wherein the third filter is configured to minimize DC remaining at the low intermediate frequency after the signal is downconverted.