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:
Oct. 24, 2000
Filed:
Sep. 23, 1998
Pascal Couteaux, Grenoble, FR;
Roland Marbot, Sassenage, FR;
STMicroelectronics S.A., Gentilly, FR;
Abstract
An Exclusive-OR logic gate with four two-by-two complementary inputs and two complementary outputs. The structure of this Exclusive-Or gate is said to be symmetrical in that the gate has a propagation time that is identical whichever of the two pairs of complementary inputs is switched over, whatever the nature of the transition at output and whatever the logic state of the pair of inputs that do not switch over. The disclosed device enables a further reduction in the differences in the time taken for the propagation of the signal edges through the gate by eliminating the floating character of certain nodes. It also relates to a frequency multiplier comprising a tree of Exclusive-Or gates such as this.