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:
May. 26, 2009
Filed:
Feb. 24, 2005
Applicant:
James T. Doyle, Nederland, CO (US);
Inventor:
James T. Doyle, Nederland, CO (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 11/12 (2006.01); H04B 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Leakage current at the inputs of an integrated circuit can be reduced by providing a master/slave arrangement wherein a plurality of slave inputs are controlled by an enable input acting as a master. When the enable input is deactivated, the slave inputs break their leakage current paths. An input structure with improved hysteresis can be provided by coupling a follow-on inverter to the output of the input stage, and coupling a hysteresis feedback circuit to the output of the follow-on inverter. The hysteresis feedback circuit is also connected to a node of the input stage other than the output thereof.