Virtual invisible keyboard

Details Virtual invisible keyboard Virtual invisible keyboard

2006-05-09

2006-05-09

Wu, Xiao (Department: 2674)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Including keyboard

C157S001420, C157S001420

Reexamination Certificate

active

07042442

ABSTRACT:
The invention uses a recognition system of gestures that maps sequences of gestures to keys strings. In the practice of this invention, a user produces gestures without keyboards. Many experienced typists can type without looking at keyboards, and typists can make gestures, in the absence of a keyboard, that are similar to gestures that would be made if there were a keyboard. The gesture recognition system captures gestures for example, (via cameras) and interprets them as pressing an invisible keyboards, as if a keyboard were actually placed in a certain location under the typists hands. To coordinate the invisible keyboard in the correct place under the hands, the user may be provided with feedback. He or she can either view the results of the gestures via a display or hear sounds, via speakers, indicating the results of the gestures.

REFERENCES:
patent: 5767842 (1998-06-01), Korth
patent: 5917476 (1999-06-01), Czerniecki
patent: 6407679 (2002-06-01), Evans et al.
patent: 6421453 (2002-07-01), Kanevsky et al.

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