Electronic computer control for a projection monitor

A cursor positioning device (10) for a computer system (18) having a projection display monitor (12) including a screen (14). A light pointer (28) in the form of an elongated housing (34) is positioned with its tip (30) at a selected location on the screen. A light sensor (44) detects the raster sca...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	DRUMM, DONALD E
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION CALCULATING COMPUTING COUNTING CRYPTOGRAPHY DISPLAY EDUCATION ELECTRIC DIGITAL DATA PROCESSING PHYSICS SEALS
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Beschreibung
Zusammenfassung:	A cursor positioning device (10) for a computer system (18) having a projection display monitor (12) including a screen (14). A light pointer (28) in the form of an elongated housing (34) is positioned with its tip (30) at a selected location on the screen. A light sensor (44) detects the raster scan trace and transmits a timed electrical signal to an interface (26), which determines the coordinates of the selected location for use by a computer (18) in controlling the position of the cursor on the projection screen (14).