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:
Sep. 19, 1995
Filed:
May. 06, 1992
Applicant:
Inventors:
Jonathan R Engdahl, Saline, MI (US);
Shawn L Adams, Ann Arbor, MI (US);
Assignee:
Allen-Bradley Company, Inc., Milwaukee, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
395285 ; 395309 ; 395475 ; 395891 ; 364D / ; 3642781 ; 3642408 ; 36424294 ;
Abstract
A communications interface circuit couples a host processor to a pair of serial communications links, During power-up the interface circuit negotiates a set of operating parameters with the host processor through a shared memory to establish the optimal conditions under which message data is to be exchanged between the serial communications links and the host processor.