Patent ID: 7262863

Claim:
A distance measuring device, comprising: at least one oscillator ( 26 ) which produces a basic signal at a fundamental frequency (f 0 ); a first circuit device ( 30 ) disposed behind the at least one oscillator ( 26 ) which produces a first signal at a first frequency (f 1 ) which is higher than that of the fundamental frequency (f 0 ), whereby the first circuit device ( 30 ) comprises at least one PLL circuit ( 32 ) and a VCO circuit ( 34 ); a phase-shifting element ( 40 ) which produces a second signal out of the basic signal at a second frequency which differs from the fundamental frequency (f 0 ) by transferring an input signal between discrete phase positions; and a second circuit device ( 30 ′) located downstream from a PLL circuit ( 32 ′) and a VCO circuit ( 34 ′) which produces a third signal at a third frequency (f′ 1 ) which is higher than the second frequency.