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:
Sep. 06, 2005
Filed:
Mar. 07, 2002
Applicants:
Ismed D. S. Hartano, Castro Valley, CA (US);
Fidel Muradali, Mountain View, CA (US);
John S. Walther, Sunnyvale, CA (US);
Inventors:
Ismed D. S. Hartano, Castro Valley, CA (US);
Fidel Muradali, Mountain View, CA (US);
John S. Walther, Sunnyvale, CA (US);
Assignee:
Agilent Technologies, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R031/28 ; G06F011/00 ;
U.S. Cl.
CPC ...
Abstract
The present disclosure describes a technique for debugging an integrated circuit having a parallel scan-chain architecture. Blocking circuits are introduced at the inputs and/or outputs of scan-chain branches. The blocking circuits allow the inputs to and/or the outputs from the scan-chain branches to be selectively blocked. This allows individual scan-chain branches to be isolated and debugged.