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US 2006/0133469 A1Published application
Two-window recovered clock jitter analysis
OwnerDan Froelich, Per Fornberg +1inventors
InventorsDan Froelich, Per Fornberg, Andrew Volk
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Abstract
Jitter in a clock signal is evaluated. A period of the clock is recovered from the clock signal in a first window, and the clock signal is evaluated for jitter within a second window that is smaller than the first window and located within the first window.
Claims45
A method of measuring jitter, comprising:
- evaluating a clock signal within a first window;
- determining a recovered clock period from the clock signal within the first window;
- evaluating the clock signal within a second window, the second window being smaller than the first window;
- and
- determining the clock signal's jitter within the second window.
2 more elements
A jitter measurement apparatus, the apparatus comprising a clock signal measurement module operable to:
- evaluate a clock signal within a first window;
- determine a recovered clock period from the clock signal within the first window;
- evaluate the clock signal within a second window, the second window being smaller than the first window and located within the first window;
- and
- determine the clock signal's jitter within the second window.
2 more elements
A machine-readable medium with instructions coded thereon, the instructions when executed operable to cause a computerized system to:
- evaluate a clock signal within a first window;
- determine a recovered clock period from the clock signal within the first window;
- evaluate the clock signal within a second window, the second window being smaller than the first window and located within the first window;
- and
- determine the clock signal's jitter within the second window.
2 more elements
Dependencies are inferred from the claim text.