Two-dimensional color barcode with preserved plane and lossy...

Details Two-dimensional color barcode with preserved plane and lossy... Two-dimensional color barcode with preserved plane and lossy...

2006-10-10

2006-10-10

Kim, Ahshik (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

C235S462010, C235S462040

Reexamination Certificate

active

07118041

ABSTRACT:
The present invention is embodied in a barcode system that includes an encoder configured to create a two-dimensional color barcode representing data defined by a first data layer and a second data layer, wherein the first data layer is preserved and the second data layer is lost during black and white copying of the color barcode.

REFERENCES:
patent: 4891254 (1990-01-01), Bianco
patent: 5369261 (1994-11-01), Shamir
patent: 6082778 (2000-07-01), Solmsdorf
patent: 6119943 (2000-09-01), Christy
patent: 6124970 (2000-09-01), Karassev et al.
patent: 2005/0001376 (2005-01-01), LaPorte et al.
patent: WO 98/45799 (1998-10-01), None

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