Portable bar code scanning device and method

Details Portable bar code scanning device and method Portable bar code scanning device and method

G - Physics

06

K

352/53.74, 352/5

G06K 9/24 (2006.01) G06K 7/10 (2006.01)

Patent

CA 1213980

ABSTRACT A compact, portable bar code scanner, employing as a light source a light-emitting diode, consumes extremely low input power. The scanner, which detects the reflectances from bars and spaces of the bar code symbol, uses optical beam-shaping methods to attain a large depth-of-focus for a non-laser system. A shaped illuminating light beam is caused to blink when the symbol is outside the depth-of-focus range and a signature imposed upon the light beam enables the scanner to substantially reject light interference. A scanning version employs an optical assembly mounted upon a bimorph leaf spring that is caused to vibrate at its natural mechanical resonance. The scanner operates with bar code symbols responsive to red light and is of sufficiently low weight to be easily hand-held.

459262

Affiliated with

Also associated with

Rating

Portable bar code scanning device and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Portable bar code scanning device and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable bar code scanning device and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1240006