Gould Inc.

Wilbert H Aldrich

Lawrence W Hill

John J Finnegan

Salvatore R Provanzano

James Heom

Ronald D Malcolm

Michael B Tressler

Robert A D'Angelo

Emil P Drottar

Baruch S Perlman

Kincade N Webb

Michael C Nollet

John E VanSchalkwyk

John E Van Schalkwyk

Dennis Picker

Alan Rich

An improved system for precisely measuring temperatures at remote locations using a microprocessor and resistance temperature detectors is achieved by providing means for pre-selecting a particular temperature range and using this temperature range information to generate a comparison level for determining the measured temperature. By employing the present invention, the fixed number of bits used to produce the temperature information output is concentrated over a limited range of temperatures, thereby achieving greater precision, since each information bit represents a much smaller number.

Precision temperature measuring system

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.

Programmable controller

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Winchester, MA, United States of America

Wilbert H Aldrich