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US 8,527,574 B2Granted
Device and method for high resolution time measurements
AssigneeRohde & Schwarz GmbH & Co. KG
InventorStephan Janot
Life of this patent
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Abstract
The invention relates to a device for determining the temporal position of an analogue trigger signal with relation to an analogue clock signal, comprising an analogue cross-correlator (30), which carries out an analogue cross-correlation between the trigger signal and clock signal to provide a fine resolution.
Claims16
A method executed by a circuit to determine the temporal position of an analog trigger signal relative to an analog clock signal, comprising:
- determining a cross correlation between the trigger signal and the clock signal;
- and
- determining the temporal position from a phase of the cross correlation,
- wherein the trigger signal is supplied to a flip flop and is differentiated for increasing the steepness of the trigger signal.
1 more element
A device for determining a temporal position of an analog trigger signal relative to an analog clock signal comprising:
- an analog cross correlator, which implements an analog cross correlation between the trigger signal and the clock signal;
- and
- a signal concatenation of a flip flop and a differentiator for increasing the steepness of the trigger signal precedes the analog cross correlator.
Dependencies are inferred from the claim text.