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:
Apr. 27, 1999
Filed:
Jan. 25, 1996
Applicant:
Inventors:
Daniel J Rothman, Sunnyvale, CA (US);
David Chiang, Saratoga, CA (US);
Assignee:
Xilinx, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
36471601 ; 36478602 ;
Abstract
An improved arithmetic logic unit (ALU) of an erasable-programmable logic device (EPLD) with a flexible, programmable carry function allows a broad range of functions to be implemented. The inventive circuit utilizes a separately configurable carry chain with multiple logic and arithmetic function capabilities.