Method for forming compact bar code including data bars and refe

Details Method for forming compact bar code including data bars and refe Method for forming compact bar code including data bars and refe

1996-12-19

1998-09-01

Pitts, Harold

Registers

Coded record sensors

Particular sensor structure

235462, G06K 710

Patent

active

058013695

ABSTRACT:
In a method for forming a bar code, a data pattern comprised of narrow bars and wide bars is prepared. In this case, a width ratio of one of said narrow bars to one of said wide bars being definite. Also, a reference pattern comprised of reference bars each having the same width as said narrow bars is prepared. Then, transitions of bars are OR-logically extracted from a parallel combination of said data pattern and said reference pattern. Black level bars and white level bars are allocated alternately between the transitions.

REFERENCES:
patent: 5682028 (1997-10-01), Coleman

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