Patent · US Active

Quantitative skew sensor

US11181577B2 · kind B2 · utility

1Cited by

11References

13Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Andreas H. A. Arp · Nufringen, DE
Douglas J. Malone · Pleasant Valley, US
Thomas Makowski · Pfullingen, DE
Michael V. Koch · Ehningen, DE

Key dates

Filing date	Jan 30, 2020
Grant date	Nov 23, 2021
Priority date	—
Expiry date	May 15, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH03K2005/00019
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A skew sensor for detecting skew between two input signals is provided. The skew sensor includes at least two skew detectors. The first skew detector receives either a first clock signal or a second clock signal as a first input signal, and the other one of the first clock signal and the second clock signal delayed by a first delay difference induced by one or more delay elements as a second input signal. The second skew detector receives either the first clock signal or the second clock signal as the first input signal, and the other one of the first clock signal and the second clock signal optionally delayed by a second delay difference induced by one more delay elements, wherein the second delay difference is different from the first delay difference, as the second input signal. Skew is measured between the first clock signal and the second clock signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.