1D finder pattern for 2D bar codes

Details 1D finder pattern for 2D bar codes 1D finder pattern for 2D bar codes

1996-06-28

2000-08-15

Pitts, Harold I.

Registers

Coded record sensors

Particular sensor structure

235494, G06K 710

Patent

active

061022896

ABSTRACT:
An easily findable 2-dimensional bar code is disclosed comprising a 2-dimensional bar code; and, a 1-dimensional bar code directly associated with the 2-dimensional bar code at a known distance and orientation with respect to a starting location of the 2-dimensional bar code whereby the 1-dimensional bar code acts as a locator for the 2-dimensional bar code. In one embodiment, the 1-dimensional bar code is incorporated as part of the 2-dimensional bar code into a hybrid bar code. The 1-dimensional bar code may contain information defining decoding of the 2-dimensional bar code. The 2-dimensional bar code may contain information supplemental to information in the 1-dimensional bar code. The 2-dimensional bar code may also contain information redundant to information in said 1-dimensional bar code. Further, the 1-dimensional bar code contains information required for decoding of the 2-dimensional bar code whereby a greater percentage of the 2-dimensional bar code is available to contain data. The invention also includes a bar code scanning system capable of scanning and decoding either 1-dimensional bar codes or 2-dimensional bar codes combined with 1-dimensional bar codes.

REFERENCES:
patent: 4924078 (1990-05-01), Sant'Anselmo
patent: 5170044 (1992-12-01), Pastor
patent: 5262623 (1993-11-01), Batterman et al.
patent: 5276315 (1994-01-01), Surka
patent: 5304787 (1994-04-01), Wang
patent: 5446791 (1995-08-01), Wolley
patent: 5490217 (1996-02-01), Wang et al.

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