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. 09, 2000
Filed:
Oct. 15, 1997
Krishna Rangasayee, Sunnyvale, CA (US);
Robert N Bielby, Pleasanton, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
A programmable logic device architecture incorporating a cross-bar switch is disclosed. In a preferred embodiment, a plurality of logic cells is programmably interconnected to form an array of logic cells capable of implementing complex logic functions. A user selectable cross-bar switch block having dedicated programmable connectors is coupled to the array of logic cells by way of a mode control circuit switch. The mode control circuit switch is arranged to couple the dedicated cross-bar switch block to the array of logic cells in a first mode and to de-couple the cross-bar switch block from the array of logic blocks in a second mode.