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.:
Date of Patent:
Mar. 25, 2014
Filed:
Apr. 19, 2012
Janusz Rajski, West Linn, OR (US);
Jerzy Tyszer, Poznan, PL;
Grzegorz Mrugalski, Swarzedz, PL;
Benoit Nadeau-dostie, Gatineau, CA;
Janusz Rajski, West Linn, OR (US);
Jerzy Tyszer, Poznan, PL;
Grzegorz Mrugalski, Swarzedz, PL;
Benoit Nadeau-Dostie, Gatineau, CA;
Mentor Graphics Corporation, Wilsonville, OR (US);
Abstract
Aspects of the invention relate to low power BIST-based testing. A low power test generator may comprise a pseudo-random pattern generator unit, a toggle control unit configured to generate toggle control data based on bit sequence data generated by the pseudo-random pattern generator unit, and a hold register unit configured to generate low power test pattern data by replacing, based on the toggle control data received from the toggle control unit, data from some or all of outputs of the pseudo-random pattern generator unit with constant values during various time periods. The low power test generator may further comprise a phase shifter configured to combine bits of the low power test pattern data for driving scan chains.