Patent ID: 7272374

Claim:
A method for dynamically selecting high-side or low-side injection of local oscillator mixing signals to help reject images within a receiver, comprising: providing a mixer configured to utilize a mixing signal to mix an input signal to a desired frequency; receiving an RF signal spectrum including a plurality of channels; identifying a channel within the RF signal spectrum to be tuned; assessing signal power at one or more frequencies within the RF signal spectrum that are different from the frequency of the channel to be tuned; selecting high-side injection or low-side injection for the mixing signal based upon the signal power assessment; generating a high-side local oscillation (LO) signal if high-side injection is selected, and generating a low-side local oscillation (LO) signal if low-side injection is selected; and mixing the RF signal spectrum with the local oscillation signal that was selected and generated so as to mix the channel to be tuned down to the desired frequency.