Light pen controlled interactive video system

Details Light pen controlled interactive video system Light pen controlled interactive video system

1984-12-05

1986-07-29

Pinkham, Richard C.

Education and demonstration

Question or problem eliciting response

Correctness of response indicated to examine by...

273DIG28, 340707, G09B 702, G09B 706

Patent

active

046029079

ABSTRACT:
A system for detecting the position of a light responsive pen with respect to a TV display wherein successive frames of a video recording are encoded by placing a lighted area in a different place on each such successive frame. Then, by determining the frame number of the frame appearing when there is a response from the light pen, the position of the pen is identified and an appropriate system response is initiated and controlled.

REFERENCES:
patent: 3130305 (1964-04-01), Sutherland
patent: 3492478 (1970-01-01), Smith
patent: 3573785 (1971-04-01), Miller
patent: 3775005 (1973-11-01), Szabo

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