Data collection device having visual display of feedback...

Details Data collection device having visual display of feedback... Data collection device having visual display of feedback...

2006-08-15

2006-08-15

Frech, Karl D. (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

C235S462450, C235S462460, C235S472020, C235S462490

Reexamination Certificate

active

07090137

ABSTRACT:
A hand-held data terminal employs a projection display, thus eliminating the need for a flat screen display conventionally employed in hand-held data terminals. The projection display according to the present invention comprises a light source, a spatial light modulator for varying the light emitted by the light source to produce an optical image that corresponds to visual output of the data terminal, and a lens to project the resulting image. In this manner, the computer output that would normally be visualized using a display such as an LCD display may be viewed as a projected image on a nearby surface, thus allowing the data terminal to be made smaller while providing a robust visual user interface.

REFERENCES:
patent: 5898162 (1999-04-01), Koenck et al.
patent: 6641046 (2003-11-01), Durbin

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