Hexagonal, information encoding article, process and system

Hidden information on a document for authentication

Hidden information on a mail piece for authentication

High density two dimensional bar code symbology

High frequency masking of embedded digital data to improve...

High-density two-dimensional graphic code, and coding system...

IC card and method of manufacturing the same

IC card, IC card manufacturing method, IC card manufacturing...

IC card, IC card manufacturing method, IC card manufacturing...

Identification of object on interactive display surface by...

Identification symbol system and method with orientation mechani

Identification symbol, system and method

Identifier for use with digital paper

Identifying card

Identity-coded surface region

Image bearing surface

Imaging method, imaging apparatus, and image information...

Information code including redundant information providing...

INFORMATION CODE PRODUCT, MANUFACTURING DEVICE AND METHOD...

Information indicating machine readable coded data