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FR Patent: FR-2,380,595
Procede et Appareil D'affichage a Distance de Signaux Analogiques Apparaissant Dans des Machines-outils Commandees par Calculateur
Method and Apparatus for Remote Displaying of Analog Signals Appearing in Computer Controlled Machine Tools
Patentees:
Richard Johnstone (exact or similar names) - Brookfield, Waukesha County, WI
Lyle D. Ostby (exact or similar names) - Brookfield, Waukesha County, WI

USPTO Classifications:

Tool Categories:
metalworking machines : machine tool controls

Assignees:
Kearney & Trecker Corp. - West Allis, Milwaukee County, WI

Manufacturer:
Kearney & Trecker Corp. - West Allis, Milwaukee County, WI

Witnesses:
Unknown

Patent Dates:
Applied: Jan. 16, 1941
Granted: Sep. 08, 1978

Patent Pictures:
Espacenet patent
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Kearney & Trecker Co.
Description:
Patented in the U. S., #4,109,309 & in Canada, CA-1,106,974.

Abstract:

The invention relates to a method for displaying an analog signal appearing in the circuit of a machine tool. The method comprises the steps of converting the analog signal into a sequence of digital signals each representing the instantaneous amplitude of the analog signal at a corresponding time, this conversion being performed at the location of the machine tool, transmitting this signal sequence Digital at said remote location; Converting said sequence of digital signals into an approximation of the analog signal and applying said approximation of the analog signal to the analog display device to display thereon.

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