Patent · US Active

Dynamic control of edge shift for duty cycle correction

US10063222B1 · kind B1 · utility

13Cited by

9References

11Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Andreas H. A. Arp · Nufringen, DE
Fatih Cilek · Eppelheim, DE
Michael V. Koch · Ehningen, DE
Matthias Ringe · Lörrach, DE

Key dates

Filing date	Sep 25, 2017
Grant date	Aug 28, 2018
Priority date	—
Expiry date	Sep 25, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH03K2005/00058
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A duty cycle correction device may be provided for correcting a duty cycle of an input signal. The device includes a first duty cycle correction circuit. The first duty cycle correction circuit receives the input signal. The first duty cycle correction circuit generates a first intermediate signal. The device includes a first programmable delay circuit. The first programmable delay circuit is controlled by a first delay control signal. The first programmable delay circuit receives the first intermediate signal. The first programmable delay circuit generates an output signal. The device includes a second duty cycle correction circuit. The second duty cycle correction circuit receives the input signal. The second duty cycle correction circuit generates a second intermediate signal. The device includes a second programmable delay circuit. The second programmable delay circuit generates a reference signal. The device includes a skew control arrangement operable for generating the first delay control signal.

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