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:
May. 08, 2018

Filed:

Feb. 02, 2017
Applicant:

Cadence Design Systems, Inc., San Jose, CA (US);

Inventors:

Guillaume Fortin, Montreal, CA;

Eva Sokolowska, Roxboro, CA;

Marek Barszcz, Roxboro, CA;

Assignee:

CADENCE DESIGN SYSTEMS, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01); G01R 31/3177 (2006.01); H03K 5/1534 (2006.01); G01R 31/317 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3177 (2013.01); G01R 31/31703 (2013.01); G01R 31/31705 (2013.01); G01R 31/31706 (2013.01); G01R 31/31727 (2013.01); H03K 5/1534 (2013.01);
Abstract

A system, method, and circuits for processing a boundary scan result involve receiving the boundary scan result as input data to a comparator, and performing a comparison based on the input data and a selected reference level to form a comparison result. A capture device that stores the comparison result is set, reset or write enabled based on the comparison result and a reference value indicating which of two reference levels is the selected reference level. Additionally, a determination is made whether to change the selected reference level for a subsequent comparison based on the comparison result, the reference value, and the output of the capture device.


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