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:
Jan. 26, 2016
Filed:
Jun. 24, 2013
Applicant:
Global Unichip Corporation, Hsinchu, TW;
Inventor:
Min-Hsiu Tsai, Hsinchu, TW;
Assignee:
Global Unichip Corporation, Hsin-chu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01); H03K 19/00 (2006.01); G01R 31/3185 (2006.01);
U.S. Cl.
CPC ...
H03K 19/0008 (2013.01); G01R 31/318575 (2013.01); H03K 19/0016 (2013.01);
Abstract
A boundary scan circuit containing a freeze circuit and a transparency circuit that provides a capability to selectively place portions of a system logic in a sleep mode and thereby conserving power. There are two transparency circuit configurations, one that connects to an input pad cell and one that connects to an output pad cell. The circuitry in the transparency circuit is controlled in such a manner as to establish at the output of transparency circuit a known logic state to control leakage current resulting from the circuitry of the various pad cell configurations, which further conserves power during sleep mode.