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On-demand printing of coding patterns

A coding pattern and coding technology, applied in graphics reading, user/computer interaction input/output, instruments, etc., can solve the problems of long transmission time and printer processing time

Inactive Publication Date: 2006-07-19
ANOTO AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the transfer time and printer processing time for the code can become prohibitively long

Method used

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  • On-demand printing of coding patterns
  • On-demand printing of coding patterns
  • On-demand printing of coding patterns

Examples

Experimental program
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Embodiment Construction

[0026] Figure 1 depicts a portion of an absolute position encoding pattern used to illustrate the invention. Such position-coding patterns are described in detail in the Applicant's International Patent Publications WO 01 / 26032 and WO 03 / 001440, which patent publications are hereby incorporated by reference. The coding pattern of Fig. 1 mainly consists of simple graphic symbols which can take on four different values, thereby making it possible to encode two bits of information. Each symbol includes a marker 10 and a spatial reference point or nominal position 12, wherein the marker 10 is moved or offset a certain distance from the nominal position 12 along one of four different directions. The value of each symbol is given by the displacement direction. The symbols are then arranged with nominal positions 12, thereby forming a regular raster or grid 14, which may be virtual and thus not visibly contained in the coding pattern.

[0027] In the following, it is assumed that t...

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PUM

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Abstract

A computer-implemented method is designed for on-demand printing on digital printers of a coding pattern to code data on a surface. The coding pattern comprises a plurality of parallel number sequences which represent different rotations of a cyclic number sequence. The method could involve retrieving a digital representation of the coding pattern, and identifying the rotations therein to derive shift information which designates a phase difference between each rotation and the cyclic number sequence. In the printing operation, all the different rotations may be represented by the cyclic number sequence embodied as at least one code block image. This code block image is repeated in accordance with the shift information to form a printable image in the printer.

Description

[0001] This application claims priority under Swedish Patent Application 0301729-0, filed June 13, 2003, and U.S. Provisional Patent Application 60 / 477,926, filed June 13, 2003, both of which are incorporated herein by reference . technical field [0002] The present invention generally relates to printing coded patterns on an on-demand digital printer. Background technique [0003] Currently, it is known to embed certain information on passive bases such as paper, tablets etc. using coding patterns. A properly programmed scanner, fax machine, camera or digital pen can then read, reconstruct and use that information logically embedded in the substrate. For example, graphical information on the substrate can be supplemented with embedded information that extends the functionality of the substrate. Such embedded information may include file data, commands, supplementary text or images, hyperlinks, absolute positions, etc. for complete or partial reconstruction of graphical i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K11/06G06F3/03G06K
Inventor 斯蒂芬·林加德
Owner ANOTO AB
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