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. 20, 1997
Filed:
Jun. 02, 1995
Kim P Clinton, Essex Junction, VT (US);
Scott W Gould, South Burlington, VT (US);
Steven P Hartman, Jericho, VT (US);
Joseph A Iadanza, Hinesburg, VT (US);
Frank R Keyser, III, Colchester, VT (US);
Eric E Millham, St. George, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A programmable interconnection system for a programmable array includes pluralities of parallel buses for rows and columns of logic cells arranged in the array. Two groups of seven buses are provided for each row or column of logic cells. The buses include conductors connectable to each other, and selectively connectable to, or isolated from, the logic cells. A hierarchy of conductor lengths is disclosed to provide intra-sector and inter-sector bussing. Staggered switching is employed for adjacent sector access.