Methods and systems for detecting selections on a touch...

Details Methods and systems for detecting selections on a touch... Methods and systems for detecting selections on a touch...

2005-07-29

2009-12-08

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C345S175000, C345S176000, C345S179000

Reexamination Certificate

active

07629968

ABSTRACT:
Light beam focusing components direct light from the top surface of a touch screen display to one or more imagers. The imager or imagers capture one or more images of the top surface of the touch screen display. A processing unit analyzes the image or images to determine the position of an input device on or near the top surface of the touch screen display.

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IBM, “Technical Disclosure Bulletin”, vol. 36, No. 1 Jan. 1993, 126-127.

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