Patent ID: 7359684

Claim:
A wireless communication device, comprising: an input for receiving baseband data in a first signal having a first frequency; circuitry for increasing the first frequency, to form a second signal having a second frequency, in response to a first frequency reference signal; circuitry for increasing the second frequency, to form a third signal having a third frequency, in response to a second frequency reference signal; an antenna for transmitting the baseband data at a final transmission channel frequency selected as a channel from among a band comprising a predetermined set of frequency channels; and wherein the first frequency reference signal is variable and is selected to have a first value and the second frequency reference signal is variable and is selected to have a second value, where the first value and the second value are selected in a first instance in response to a first final transmission channel frequency selected as a channel from among the band; and wherein the first frequency reference signal is variable and is selected to have a third value differing from the first value and the second frequency reference signal is variable and is selected to have a fourth value differing from the third value, where the third value and the fourth value are selected in a second instance in response to a second final transmission channel frequency selected as a channel from among the band.