Document printed with graphical symbols which encode...

Details Document printed with graphical symbols which encode... Document printed with graphical symbols which encode...

2005-03-29

2005-03-29

Le, Thien M. (Department: 2876)

Registers

Records

Particular code pattern

C235S487000

Reexamination Certificate

active

06871789

ABSTRACT:
A document is printed with graphical symbols which encode information but are not human readable; the graphical symbols are formed into some or all of visible element printed on the document. The outline of this element is used for synchronising an automated process for scanning the document to extract the encoded information from the element. In prior art systems, synchronising an automated process for scanning the document to extract the encoded information from the element requires large scale arrangement of the graphical symbols (e.g. a horizontal line of glyphs which are all forward facing and which intersect a vertical line of glyphs which are all rearward facing). This considerably mars the appearance of a printed document. This negative impact on appearance has been one of the major causes inhibiting the uptake of graphical symbol technology for encoding information.

REFERENCES:
patent: 5091966 (1992-02-01), Bloomberg et al.
patent: 5245165 (1993-09-01), Zhang
patent: 6170744 (2001-01-01), Lee et al.
patent: 6254007 (2001-07-01), Mowry, Jr.
patent: 6457651 (2002-10-01), Paul et al.
patent: 6549624 (2003-04-01), Sandru
patent: 6748102 (2004-06-01), Prakash
patent: 20030141375 (2003-07-01), Lawandy

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