Patent · US Active

Clock monitoring using pointer techniques

US12259747B1 · kind B1 · utility

0Cited by

3References

21Claims

0Family size

Assignee

MARVELL ASIA PTE LTD · SG

Inventors

Madhusudhan Harigovindan Thekkeettil · Cupertino, US
Josef Mueller · Großkarlbach, DE

Key dates

Filing date	Jan 25, 2023
Grant date	Mar 25, 2025
Priority date	—
Expiry date	May 17, 2043

Classification

Technology area (CPC G)Physics
CPC primaryG06F1/12
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Two pointers are initialized. The first pointer is incremented every M cycles of a monitored clock and the second pointer is incremented every N cycles of a reference clock, where M and N are determined from a frequency relationship between the clocks. If the positions of the pointers are determined to differ by more than a drift threshold, an error is detected and corrective action may be taken.

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