Clock filter dispersion

Details Clock filter dispersion Clock filter dispersion

2005-09-09

2010-10-26

Phan, Tri H (Department: 2471)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

C370S518000, C370S519000, C713S400000, C713S503000

Reexamination Certificate

active

07822072

ABSTRACT:
Disclosed are a method and system to estimate the maximum error in the clock offset and skew estimation between two clocks in a computer system. The method comprises the steps of obtaining a first set of data values representing a forward delay between the first and second clocks, and obtaining a second set of data values representing a negative backward delay between the first and second clocks. The method comprises the further step of forming a lower convex hull for said first set of data values, and forming an upper convex hull for said second set of data values. First and second parallel lines are formed between the upper and lower convex hulls, and these parallel lines are used to estimate the worst case error for the offset, skew rate and dispersion of said first and second clocks.

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