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:
Jul. 14, 1992
Filed:
May. 06, 1991
Applicant:
Inventors:
Ju Shen, San Jose, CA (US);
Albert L Chan, Palo Alto, CA (US);
Kapil Shankar, San Jose, CA (US);
Cyrus Tsui, Vancouver, WA (US);
Assignee:
Lattice Semiconductor Corporation, Hillsboro, OR (US);
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307465 ; 307243 ;
Abstract
A programmable logic device is disclosed which includes a programmable AND array, a plurality of logic circuits connected to groups of product term outputs from the AND array for performing a logical OR operation of the product term inputs and the programmable logic device includes programmable OR circuitry for selectively connecting one or more of the ORed groups of product terms to one or more outputs of the programmable logic device. The programmable OR circuit permits product term steering and sharing.