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. 18, 2018

Filed:

Aug. 12, 2016
Applicant:

Mcube Inc., San Jose, CA (US);

Inventors:

Sanjay Bhandari, San Jose, CA (US);

Tony Maraldo, San Jose, CA (US);

Assignee:

mCube, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/00 (2013.01); G01R 31/317 (2006.01); G01R 31/3177 (2006.01); G06F 21/73 (2013.01);
U.S. Cl.
CPC ...
G01R 31/31719 (2013.01); G01R 31/3177 (2013.01); G01R 31/31701 (2013.01); G06F 21/73 (2013.01);
Abstract

A method is provided for implementing a security mechanism in an integrated MEMS (Micro-Electro-Mechanical-System) device having a MEMS sensor with an output register associated with a sensing operation, the integrated MEMS device being electrically coupled to a computing system programmed to perform the method. The method includes, in normal operation, reading from the output register an output of the sensing operation, and in a test mode, determining, by a processor disposed within the computing system, a random value. Determining the random value can include reading from the output register, which in the test mode or provides a value from an internal pattern generator. The method also includes determining, by the processor, a validation value, reading, by the processor, the random value stored in the output register; and determining, by the processor, whether the integrated device is valid using the validation value and the random value stored in the output register.


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