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:
Jun. 26, 2012
Filed:
Jan. 22, 2010
Applicants:
Tore Lennart Kellgren, San Jose, CA (US);
J. Antonio Salcedo, Livermore, CA (US);
Inventors:
Tore Lennart Kellgren, San Jose, CA (US);
J. Antonio Salcedo, Livermore, CA (US);
Assignee:
Exar Corporation, Fremont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/22 (2006.01); G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
Logic to indicate a revision level includes multiple cells for one bit of the revision level. The cells being wired to be a pass-through cell or a swap cell during fabrication. At least some of the cells are such that to change the bit of the revision level, it is sufficient to change any single mask of a group of masks. The change to the single mask switches at least one of the cells from pass-through cell to a swap cell, or vice-versa.