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. 16, 2010
Filed:
Apr. 05, 2007
Applicants:
Steven Kasapi, San Francisco, CA (US);
Gary Leonard Woods, Sunnyvale, CA (US);
Inventors:
Steven Kasapi, San Francisco, CA (US);
Gary Leonard Woods, Sunnyvale, CA (US);
Assignee:
DCG Systems, Inc., Fremont, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
Time-resolved emission can be used to measure loop-synchronous, small-signal voltage perturbation in integrated circuits. In this technique the measurements are completely non-invasive and so reflect the true device behavior. The time-dependant propagation delay caused by Vdd modulation also shows the expected qualitative signature. This technique should find applications in circuits with relatively fast clock-like circuits where loop-synchronous voltage pickup is limiting circuit behavior.