Decoder and encoder for a digital fingerprint code

Patent metadata

Field	Value
Publication number	US-10242246-B2
Application number	US-201715794063-A
Country	US
Kind code	B2
Filing date	Oct 26, 2017
Priority date	Mar 17, 2014
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

A method to encode and decode a digital fingerprint code by an identification encoder and an identification decoder wherein the digital fingerprint code includes a plurality of N-bit data embedded on a set of curves by changed thicknesses in the curves.

First claim

What is claimed is:

1. A decorative workpiece comprising:
a wood pattern including an inkjet printed identification code to track-and-trace the decorative workpiece; wherein
the inkjet printed identification code is embedded in nerves in the wood pattern;
the inkjet printed identification code includes a plurality of N-bit data that represent content;
the plurality of N-bit data includes first N-bit data (N 1 ) and a different second N-bit data (N 2 ) on one of the nerves; and
a thickness (TN,i, 1 ) of a value (vN, 1 ) from the first N-bit data (N 1 ) on the nerve is different from a thickness (TN,i, 2 ) of a value (vN, 2 ) from the second N-bit data (N 2 ), and/or a length (LN,i, 1 ) of the value (vN, 1 ) from the first N-bit data (N 1 ) on the nerve is different from a length (LN,i, 2 ) of the value (vN, 2 ) from the second N-bit data (N 2 ).

2. The decorative workpiece according to claim 1 , wherein the decorative workpiece is selected from the group consisting of kitchen panels, flooring panels, furniture panels, ceiling panels, and wall panels.

3. The decorative workpiece according to claim 2 , wherein the decorative workpiece includes a glueless tongue and groove joint.

4. A decorative workpiece comprising:
a wood pattern including an inkjet printed identification code to track-and-trace the decorative workpiece; wherein
the inkjet printed identification code is embedded in nerves in the wood pattern;
the inkjet printed identification code includes a plurality of N-bit data that represent content; and
the wood pattern is inkjet printed on a paper substrate to be impregnated with a thermosetting resin and heat-pressed on a core layer.

5. The decorative workpiece according to claim 4 , wherein the wood pattern includes one or more aqueous inkjet inks on the paper substrate.

6. The decorative workpiece according to claim 5 , wherein the thermosetting resin includes a melamine based resin.

7. The decorative workpiece according to claim 6 , wherein the core layer includes wood based material selected from the group consisting Medium Density Fibreboard, High Density Fibreboard, and Oriented Strand Board.

Assignees

• Agfa Nv

Inventors

• Bartels Rudolf

Classifications

• G06V40/1365

  Matching; Classification · CPC title

• G06K7/10 Primary

  by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation · CPC title

• H04N19/136

  Incoming video signal characteristics or properties · CPC title

• G06K19/0614

  the marking being selective to wavelength, e.g. color barcode or barcodes only visible under UV or IR (methods or arrangements for sensing record carriers using a selected wavelength, see G06K7/12) · CPC title

• G06K19/06009

  with optically detectable marking (G06K19/063, G06K19/08 take precedence) · CPC title