Patent ID: 11899092
Assignee: LAMBDA:4 ENTWICKLUNGEN GMBH
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 24:
25. A system for synchronization, for signal round-trip time measurement or signal runtime measurement or for measuring the phase round-trip shift or for range finding or measuring a distance change comprising at least one first and one second device;
wherein the first device is set up to emit a first signal (S1) and at least one first further signal (S1w.n), having at least one PLL for generating the first signal (S1) at a first frequency and the at least one first further signal (S1w) at a first further frequency;
wherein the first device is set up to toggle between generation of the first signal (S1) and generation of the at least one first further signal (S1w.n) using knowledge or determination of the phase difference (phi1.n) between the first signal (S1) and a first further signal (S1w.n);
wherein at least one first further phase progression of the at least one first further signal (S1w.n) has a first first phase relationship (phi1.1) to a first phase progression of the first signal (S1) at the first device, wherein first device is set up to predetermine, determine or know the first first phase relationship (phi1.1); and
wherein the first device is set up to receive a second signal (S2) from the second device and at least one second further signal from said second device, and is set up to determine at least one virtual frequency switching time between a second frequency (f2) of the second signal (S2) and at least one second further frequency (f2w.n) of at least one second further signal (S2w.n);
wherein the first device is set up to determine from a phase progression of the second signal (S2) received at the first device, and of at least one phase progression of the at least one second further signal (S2w.n) received at the first device, at least one virtual frequency switching time (t2.1) as a time, at which, at the first device, a phase relationship between interpolated or received phase positions of the second signal (S2) and a second further signal (S2w.1) corresponds to a first second phase relationship (phi2.1);
wherein the second device is set up to emit the second signal (S2) and the at least one second further signal (S2w.n), having at least one PLL for generating the second signal (S2) at the second frequency and the at least one second further signal (S2w) at a second further frequency;
wherein the second device is set up to toggle between generation of the second signal (S2) and generation of the at least one second further signal (S2w.n);
wherein at least one second further phase progression of the at least one second further signal (S2w.n) has a first second phase relationship (phi2.1) to a second phase progression of the second signal (S2) at the second device; and
wherein the second device is set up to predetermine, determine or know the first second phase relationship (phi2.1) and is set up to determine from a phase progression of the first signal (S1) received at the second device, and of at least one phase progression of the at least one second further signal (S2w.n) received at the second device, the at least one virtual frequency switching time (t1.1) as a time, at which, at the second device, a phase relationship between interpolated or received phase positions of the first and the first further signal (S1, S1w.1) corresponds to the first first phase relationship (phi1.1).