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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.

Patent No.:

US 9170602 B1

PDFFull Text
Date of Patent:
Oct. 27, 2015

Filed:

Jun. 28, 2012

Calibrating a high-speed clock signal generated using a processor internal to the electronic authentication device without using a crystal oscillator

Applicants:

Joseph M. Pirrotta, Framingham, MA (US);

Marco Ciaffi, Sudbury, MA (US);

Inventors:

Joseph M. Pirrotta, Framingham, MA (US);

Marco Ciaffi, Sudbury, MA (US);

Assignee:

EMC Corporation, Hopkinton, MA (US);

Attorneys:

John T. Hurley

Jason A. Reyes

Krishnendu Gupta

Primary Examiner:

Jaweed A Abbaszadeh

Assistant Examiner:

Gayathri Sampath

Int. Cl.
CPC ...
G06F 1/04 (2006.01); G06F 1/24 (2006.01); G06F 11/00 (2006.01); G06F 1/12 (2006.01); G06F 1/10 (2006.01); G06F 1/08 (2006.01);
U.S. Cl.
CPC ...
G06F 1/12 (2013.01); G06F 1/10 (2013.01); G06F 1/08 (2013.01);
Abstract

A method is used in calibrating an internal clock generator. An electronic device is instructed to output a high-speed clock signal which is communicated to an external calibration system. The high-speed clock signal is measured using measurement equipment associated with the external calibration system. One or more calibration values based on the measured clock signal value are calculated. The calculated calibration values are communicated to the electronic device. The electronic device is instructed to generate a calibrated clock signal by applying the one or more calibration values to an internally generated clock signal.

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Pirrotta, Joseph. (2015). Calibrating a high-speed clock signal generated using a processor internal to the electronic authentication device without using a crystal oscillator (U.S. Patent No. 9170602). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9170602

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