Device and method for generating a virtual keyboard/display

Details Device and method for generating a virtual keyboard/display Device and method for generating a virtual keyboard/display

2007-05-08

2007-05-08

Shankar, Vijay (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Including keyboard

C345S215000

Reexamination Certificate

active

10420699

ABSTRACT:
The specification discloses a device and method for generating a virtual keyboard/display. By means of optical scanning, a virtual display/keyboard is generated on a physical plane through a scan laser switch. Using the code reading technology, the key position entered by the user can be read and transmitted to a computer. The disclosed device includes a first laser emitter, a second laser emitter, and a laser receiver. The disclosed method has the following steps. First, the first laser emitter performs a surface scan to generate the patterns of the keyboard/display. The second laser emitter simultaneously generates a first reflective beam and a second reflective beam when the user enters input using the virtual keyboard. Finally, the laser receiver receives the first and second reflective beams, thereby obtaining the signals entered by the user.

REFERENCES:
patent: 6614422 (2003-09-01), Rafii et al.
patent: 6710770 (2004-03-01), Tomasi et al.
patent: 2002/0061217 (2002-05-01), Hillman et al.
patent: 2002/0171633 (2002-11-01), Brinjes
patent: 2005/0024324 (2005-02-01), Tomasi et al.

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