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:
Nov. 12, 2013
Filed:
Jan. 10, 2011
Senthil Arasu Thirunavukarasu, Bangalore, IN;
Vivek Chickermane, Ithaca, NY (US);
Shaleen Bhabu, New Delhi, IN;
Senthil Arasu Thirunavukarasu, Bangalore, IN;
Vivek Chickermane, Ithaca, NY (US);
Shaleen Bhabu, New Delhi, IN;
Cadence Design Systems, Inc., San Jose, CA (US);
Abstract
State retention cells of a test circuit embedded in an electrical circuit are interconnected to form one or more scan chains. The scan chains are interconnected so that unknown states, or X-states, are shifted through the scan chains in an order other than the order in which the states were captured by the state retention cells of the scan chain. Such reordering of response states in individual scan chains may be used to align the X-states across multiple scan chains to achieve higher test compression scan register circuit testing.