Virtual key pad for optical scanning apparatus

Details Virtual key pad for optical scanning apparatus Virtual key pad for optical scanning apparatus

1998-03-24

1999-12-07

Le, Thien M.

Registers

Coded record sensors

Particular sensor structure

235454, C06K 710

Patent

active

05996894&

ABSTRACT:
Virtual key pads assigned to correspond to function commands conventionally executed in response to operating real key pads, are scanned by an optical scanning apparatus for recognizing if they have been touched by user or which among them have/has been touched, and for executing the function commands corresponded by that/those which was/were touched, whereby the virtual key pads act as real key pads, thereby real key pads are no longer necessary. Also a cover-mat with virtual key pads and more than one window thereon is suggested to conveniently adapt a scanning apparatus to various applications.

REFERENCES:
patent: 5392447 (1995-02-01), Schlack et al.
patent: 5450078 (1995-09-01), Silva et al.
patent: 5604516 (1997-02-01), Herrod et al.
patent: 5747785 (1998-05-01), Miller et al.
patent: 5832422 (1998-11-01), Wiedenhoefer
patent: 5835732 (1998-10-01), Kikinis et al.
patent: 5867688 (1999-02-01), Simmon et al.
patent: 5892502 (1999-04-01), Hiller

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