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. 10, 1995
Filed:
May. 21, 1993
Applicant:
Inventors:
Barry K Britton, Schnecksville, PA (US);
Dwight D Hill, San Carlos, CA (US);
Assignee:
AT&T Corp., Morray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
326 41 ; 326 39 ;
Abstract
In accordance with the present invention, a field programmable gate array includes at least one programmable function unit. The programmable function unit has first and second logic circuits, each providing an output, and first and second output drivers, each having an input. The input of each output driver is adapted to be selectively coupled to the output of either of the logic circuits. A programmable interconnection is provided to selectively couple the input of the two output drivers to the output of a selective one of the logic circuits.