Data input unit

Details Data input unit Data input unit

1997-01-31

1999-07-27

Powell, Mark R.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345473, 345127, G09G 508

Patent

active

059298413

ABSTRACT:
Three-dimensional position information inputted by an input unit is detected by a detecting unit and is converted into coordinate information in a specific plane and height information in an axial direction perpendicularly intersecting to the plane by an operating section of a processing unit. In the case of a plurality of input units, the information is discriminated per input unit by a discriminating section of the processing unit. The information is stored in a memory section and is taken out from the memory section suitably and is outputted as display information by an I/O section of the processing unit so that display is changed according to a size of the height information. The outputted information is indicated by, for example, a designating graphic on an output unit. At this time, an operator can recognize a distance between the input unit and the detecting unit and discriminate the information according to shades of a color of the designating graphic.

REFERENCES:
patent: 3611297 (1971-10-01), Kramer
patent: 5223828 (1993-06-01), McKiel, Jr.
patent: 5495576 (1996-02-01), Ritchey
patent: 5576732 (1996-11-01), Minakuchi et al.
patent: 5635951 (1997-06-01), Takahashi

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