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Machine-readable articles containing obscuring elastic optical codes

A technology of optical codes and products, applied in the field of coded information

Active Publication Date: 2022-06-07
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even taking into account the prior art related to barcodes, various disadvantages exist in barcodes, tags or other articles incorporating such barcodes

Method used

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  • Machine-readable articles containing obscuring elastic optical codes
  • Machine-readable articles containing obscuring elastic optical codes
  • Machine-readable articles containing obscuring elastic optical codes

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0034] Figures 1A-1D A shading scene with road signage in accordance with the articles and techniques of the present disclosure is shown. Figures 1A-1D The scenarios shown in are those that are often experienced by the driver of the vehicle. One of the objects of the present disclosure includes providing a machine-readable optical code that can be accurately detected and decoded from a traffic sign even when a portion of the sign is obscured. The machine-readable optical codes of the present disclosure are not QR codes, and may provide one or more advantages over QR codes, as will be apparent from this disclosure. Figure 1A The stop sign 110 is shown located behind the top of the hill 114 so that from the perspective of vehicles on the road 112 the full view of the sign 110 would be partially blocked by the hill 114 . Figure 1B Road construction ahead sign 120 is shown, which may be partially obscured or obscured by tree 122 such that vehicles on road 124 will not be able ...

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PUM

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Abstract

The present invention relates to an article, which, in some embodiments, includes a substrate and a plurality of sets of optical elements present on the substrate, wherein each set of optical elements includes a plurality of optical elements, wherein each respective optical element represents A coded value in a set of coded values, wherein the set of coded values ​​is distinguishable based on the visual distinguishability of the corresponding optical element, wherein if one or more optical element sets of the plurality of optical element sets are visually obscured, each A corresponding set of optical elements represents at least a part of the message or error correction data for decoding the message, and wherein the sets of optical elements for the message and the error correction data are spatially arranged in a matrix at the physical surface such that in the absence of With optical elements positioned within at least one complete edge of the matrix that is visually obscured, messages can be decoded from said substrate.

Description

technical field [0001] The present disclosure relates to encoded information on physical surfaces of articles and systems for encoding and decoding such information. Background technique [0002] A barcode is generally an optical machine-readable representation of data or information. Some barcodes represent data by systematically varying the width and spacing of parallel lines. These types of barcodes are often referred to as linear or one-dimensional (1D) barcodes. The data or information encoded in the barcode can be related to the object to which the barcode is attached. [0003] Later, two-dimensional (2D) barcodes were developed. These barcodes use two-dimensional geometric patterns to encode data. One common type of 2D barcode is the Quick Response (QR) code, which is a square-shaped matrix-type code. QR codes often include three distinctive squares at the corners of the QR code and a smaller square near the fourth corner. The three distinctive squares define the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/06G06K7/14
CPCG06K7/1417G06K7/1473G06K19/06037G06K19/06056G06K19/06075
Inventor 詹姆斯·W·霍华德贾斯廷·M·约翰逊蒂布提·帕乔里詹姆斯·B·斯尼德尔古鲁普若萨德·索玛孙达南
Owner 3M INNOVATIVE PROPERTIES CO