Pixel splitting to improve bar code readability

Details Pixel splitting to improve bar code readability Pixel splitting to improve bar code readability

1997-06-30

1999-04-06

Burr, Edgar

Typewriting machines

Code-printing typewriter

G06K 1906

Patent

active

058908188

ABSTRACT:
An apparatus and method for removing fractions of a pixel from bar code bars to maintain the correct distance between adjacent correctly sized code forming bars. Thus, the distance between adjacent code forming bars will be constant and accurate. The foregoing is accomplished by varying a parameter of the beam or ink droplet that is used to produce the bar so that the bar width and space between adjacent code forming bars will be accurately maintained. Hence, bars of a bar code will be accurately reproduced to enable the bar code to be accurately read.

REFERENCES:
patent: 4386272 (1983-05-01), Check et al.
patent: 4795281 (1989-01-01), Ulinski
patent: 4810867 (1989-03-01), Speicher
patent: 4847641 (1989-07-01), Cheng-Yuan
patent: 4864112 (1989-09-01), Imai
patent: 4960336 (1990-10-01), Brooks
patent: 5056429 (1991-10-01), Hirosaki
patent: 5183343 (1993-02-01), Tazawa
patent: 5268680 (1993-12-01), He
patent: 5438636 (1995-08-01), Surka
patent: 5479535 (1995-12-01), Komatsu
patent: 5510604 (1996-04-01), England
patent: 5564841 (1996-10-01), Austin
patent: 5676473 (1997-10-01), Wright
Uniform Symbology Specification PDF417, AIM USA, Pittsburgh, PA, 1994.
Ink Spread and PDF417 Readability, Kevin Hunter, Symbol Technologies, Holtsville, NY.
PDF417 Symbol Analysis for Fraud Detection, Kevin Hunter, Symbol Technologies, Holtsville, NY.
Information Encoding with Two-Dimensional Bar Codes, Theo Pavlidis et al., Symbol Technologies, Holtsville, NY.

Affiliated with

Also associated with

Rating

Pixel splitting to improve bar code readability does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pixel splitting to improve bar code readability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pixel splitting to improve bar code readability will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1364650