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US 12,591,268 B2Granted
Synchronization method and measurement system
AssigneeRohde & Schwarz GmbH & Co. KG
InventorsOtmar Wanierke, Corbett Rowell
Life of this patent
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Abstract
A synchronization method of synchronizing at least two signal processing circuits of a measurement system is described. The at least two signal processing circuits include a first signal processing circuit and a second signal processing circuit generating a first local clock count and a second local clock count, respectively.
Claims20
A synchronization method of synchronizing at least two signal processing circuits of a measurement system,
- wherein the at least two signal processing circuits comprise a first signal processing circuit, wherein the first signal processing circuit comprises a first local oscillator generating a first local clock signal, wherein the first signal processing circuit further comprises a first clock counter circuit being configured to generate a first local clock count of the first local clock signal,
- wherein the at least two signal processing circuits comprise a second signal processing circuit, wherein the second signal processing circuit comprises a second local oscillator generating a second local clock signal, wherein the second signal processing circuit further comprises a second clock counter circuit being configured to generate a second local clock count of the second local clock signal,
- wherein the synchronization method comprises:
- receiving a low-reference clock signal having a low-reference frequency;
- determining a low-reference clock count of the low-reference clock signal;
- determining a first low-reference fit of the low-reference clock count against the first local clock count and a second low-reference fit of the low-reference clock count against the second local clock count;
- receiving a high-reference clock signal having a high-reference frequency;
- determining a high-reference clock count of the high-reference clock signal;
- determining a first high-reference fit of the high-reference clock count against the first local clock count and a second high-reference fit of the high-reference clock count against the second local clock count;
- determining an intersection of the first low-reference fit and the first high-reference fit;
- determining an intersection of the second low-reference fit and the second high-reference fit;
- and
- synchronizing the first signal processing circuit and the second signal processing circuit based on the determined intersections.
10 more elements
A measurement system, the measurement system comprising at least two signal processing circuits,
- wherein the at least two signal processing circuits comprise a first signal processing circuit, wherein the first signal processing circuit comprises a first local oscillator generating a first local clock signal, wherein the first signal processing circuit further comprises a first clock counter circuit being configured to generate a first local clock count of the first local clock signal,
- wherein the at least two signal processing circuits comprise a second signal processing circuit, wherein the second signal processing circuit comprises a second local oscillator generating a second local clock signal, wherein the second signal processing circuit further comprises a second clock counter circuit being configured to generate a second local clock count of the second local clock signal,
- wherein the measurement system comprises at least one synchronization circuit, the at least one synchronization circuit being configured to receive a low-reference clock signal and a high-reference clock signal, and
- wherein the measurement system is configured to:
- receive the low-reference clock signal having a low-reference frequency;
- determine a low-reference clock count of the low-reference clock signal;
- determine a first low-reference fit of the low-reference clock count against the first local clock count and a second low-reference fit of the low-reference clock count against the second local clock count;
- receive the high-reference clock signal having a high-reference frequency;
- determine a high-reference clock count of the high-reference clock signal;
- determine a first high-reference fit of the high-reference clock count against the first local clock count and a second high-reference fit of the high-reference clock count against the second local clock count;
- determine an intersection of the first low-reference fit and the first high-reference fit;
- determine an intersection of the second low-reference fit and the second high-reference fit;
- and
- synchronize the first signal processing circuit and the second signal processing circuit based on the determined intersections.
11 more elements
A measurement system, the measurement system comprising at least two signal processing circuits,
- wherein the at least two signal processing circuits comprise a first signal processing circuit, wherein the first signal processing circuit comprises a first local oscillator generating a first local clock signal, wherein the first signal processing circuit further comprises a first clock counter circuit being configured to generate a first local clock count of the first local clock signal,
- wherein the at least two signal processing circuits comprise a second signal processing circuit, wherein the second signal processing circuit comprises a second local oscillator generating a second local clock signal, wherein the second signal processing circuit further comprises a second clock counter circuit being configured to generate a second local clock count of the second local clock signal,
- wherein the measurement system comprises at least one synchronization circuit, the at least one synchronization circuit being configured to receive a low-reference clock signal and a high-reference clock signal,
- wherein the measurement system is configured to:
- receive the low-reference clock signal having a low-reference frequency;
- determine a low-reference clock count of the low-reference clock signal;
- determine a first low-reference fit of the low-reference clock count against the first local clock count and a second low-reference fit of the low-reference clock count against the second local clock count;
- receive the high-reference clock signal having a high-reference frequency;
- determine a high-reference clock count of the high-reference clock signal;
- determine a first high-reference fit of the high-reference clock count against the first local clock count and a second high-reference fit of the high-reference clock count against the second local clock count;
- determine an intersection of the first low-reference fit and the first high-reference fit;
- determine an intersection of the second low-reference fit and the second high-reference fit;
- and
- synchronize the first signal processing circuit and the second signal processing circuit based on the determined intersections,
- wherein the at least two signal processing circuits comprise a third signal processing circuit and a fourth signal processing circuit, wherein the measurement system is configured to synchronize the first signal processing circuit with the second signal processing circuit based on a first low-reference clock signal having a first low-reference frequency, and wherein the measurement system is configured to synchronize the third signal processing circuit with the fourth signal processing circuit based on a second low-reference clock signal having a second low-reference frequency.
12 more elements
Dependencies are inferred from the claim text.