Patent · US Active

Method and device for clock calibration and corresponding apparatus

US10082824B2 · kind B2 · utility

1Cited by

2References

21Claims

0Family size

Assignee

STMicroelectronics SA

Inventors

Daniele Mangano · San Gregorio di Catania, IT
Riccardo Condorelli · Mascalucia, IT

Key dates

Filing date	Dec 10, 2015
Grant date	Sep 25, 2018
Priority date	—
Expiry date	Dec 10, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02D10/00
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A clock generator includes a microcontroller unit calibrated by aligning at subsequent calibration times a frequency of a first clock with respect to the frequency of a second clock having a higher frequency accuracy than the first clock, with the frequency of the first clock varying between subsequent calibration times. The frequency of the first clock is aligned to a frequency which is offset by a certain amount with respect to the frequency of the second clock to counter frequency error which may accumulate over time due to the variation in the frequency of the first clock.

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