The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 25, 2018

Filed:

Dec. 10, 2015
Applicant:

Stmicroelectronics S.r.l., Agrate Brianza, IT;

Inventors:

Daniele Mangano, San Gregorio di Catania, IT;

Riccardo Condorelli, Tremestieri Etneo, IT;

Assignee:

STMicroelectronics S.r.l., Agrate Brianza (MB), IT;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/12 (2006.01); G06F 1/14 (2006.01); H03L 1/00 (2006.01); G06F 1/32 (2006.01);
U.S. Cl.
CPC ...
G06F 1/12 (2013.01); G06F 1/14 (2013.01); G06F 1/3243 (2013.01); H03L 1/00 (2013.01); Y02D 10/152 (2018.01);
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.


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