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:
Aug. 09, 2022
Filed:
Feb. 11, 2020
Applicant:
Siemens Industry Software Inc., Plano, TX (US);
Inventors:
Wu-Tung Cheng, Lake Oswego, OR (US);
Yu Huang, West Linn, OR (US);
Assignee:
Siemens Industry Software Inc., Plano, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/3185 (2006.01); G01R 31/3177 (2006.01);
U.S. Cl.
CPC ...
G01R 31/318536 (2013.01); G01R 31/3177 (2013.01); G01R 31/318541 (2013.01); G01R 31/318555 (2013.01); G01R 31/318572 (2013.01);
Abstract
A circuit comprises a plurality of scan chains. The plurality of scan chains comprises bidirectional scan cells. Each of the bidirectional scan cells comprises two serial input-output ports serving as either a serial data input port or a serial data output port based on a control signal. Each of the plurality of scan chains is configured to perform a shift operation in either a first direction or a second direction based on the control signal. The first direction is opposite to the second direction.