04307447 is referenced by 147 patents and cites 21 patents.

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.

Title
Programmable controller
Application Number
6/49895
Publication Number
4307447
Application Date
June 19, 1979
Publication Date
December 22, 1981
Inventor
Kincade N Webb
Cambridge
MA, US
John E VanSchalkwyk
Andover
MA, US
Michael B Tressler
Tewksbury
MA, US
Baruch S Perlman
Cambridge
MA, US
Michael C Nollet
Andover
MA, US
Ronald D Malcolm
Andover
MA, US
Lawrence W Hill
Arlington
MA, US
James Heom
Bedford
MA, US
John J Finnegan Jr
Hudson
NH, US
Emil P Drottar
Ipswich
MA, US
Robert A D Angelo
Windham
NH, US
Wilbert H Aldrich
Winchester
MA, US
Salvatore R Provanzano
Melrose
MA, US
Agent
Mattern Ware Stoltz & Fressola
Assignee
Gould
IL, US
IPC
G06F 7/00
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