Patent ID: 6922449

Claim:
A radio receiver, comprising: first receiver front-end circuitry, for receiving signals in a first received frequency band, the first receiver front-end circuitry including a first mixer and means for supplying a first local oscillator signal thereto for downconverting signals in the first received frequency band to a band at a first intermediate frequency IF 1 ; second receiver front-end circuitry, for receiving signals in a second received frequency band, the second receiver front-end circuitry including a second mixer and means for supplying a second local oscillator signal thereto for downconverting signals in the second received frequency band to a band at a second intermediate frequency IF 2 ; and an analog-digital converter, for sampling downconverted signals received from both the first receiver front-end circuitry and the second receiver front-end circuitry at a predetermined sampling rate Fs; the first and second local oscillator frequencies being selected such that the intermediate frequencies are given by: IF 1 = Fs *(N 1 ± x ), and IF 2 = Fs *(N 2 ± y ), wherein N 1 and N 2 are respective different integers, 0<x<½, and 0<y<½.