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:
Dec. 22, 1981
Filed:
Jun. 19, 1979
Salvatore R Provanzano, Melrose, MA (US);
Wilbert H Aldrich, Winchester, MA (US);
Robert A D'Angelo, Windham, NH (US);
Emil P Drottar, Ipswich, MA (US);
John J Finnegan, Jr, Hudson, NH (US);
James Heom, Bedford, MA (US);
Lawrence W Hill, Arlington, MA (US);
Ronald D Malcolm, Andover, MA (US);
Michael C Nollet, Andover, MA (US);
Baruch S Perlman, Cambridge, MA (US);
Michael B Tressler, Tewksbury, MA (US);
John E VanSchalkwyk, Andover, MA (US);
Kincade N Webb, Cambridge, MA (US);
Gould Inc., Rolling Meadows, IL (US);
Abstract
An improved programmable controller having the ability to use two different data bases while presenting to the outside world a uniform word size. The programmable controller includes pipeline processing and hardware solution of a user control program in a network node format. A memory management scheme is provided allowing for the direct addressability of one-half million words by utilization of a page register. The programmable controller can be incorporated into a network containing other programmable controllers. The programmable controller also incorporates a multi-task interrupt so that the processor can handle more than one job at any particular time. Input/output tasks are handled logically in the scan solving the user networks rather than being based upon a particular physical area of the controller memory.