Composite Code Pattern for High Density Readable Data
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Solution Overview
Problem
Conventional information expressions using one-dimensional or two-dimensional codes face challenges in increasing information density without compromising reading difficulty, especially when cell sizes are small and subdivided, requiring high-resolution readers and struggling to distinguish subdivided cells.
Innovation Solution
A composite code pattern is introduced, combining a first code with a second code where marks are arranged in special cells, using identifiable colors and virtual points to enhance information density while maintaining readability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If cell size is reduced to increase information density, then information density is improved, but reading difficulty increases and high-resolution readers are required
Solution Approach 1:
The code is divided into two independent layers: the first code uses traditional cell arrangements for basic information, while the second code uses mark arrangements within special cells for additional information. This segmentation allows each layer to be optimized independently - the first code maintains readability with larger effective cell sizes, while the second code increases information density through additional marks within selected cells.
Solution Approach 2:
The second code is nested within the structure of the first code by placing marks inside specific cells that are already part of the first code's cell arrangement. This nesting allows the second code to utilize the existing cell structure as containers, effectively embedding additional information layers without disrupting the outer code's readability.
2Quantity of substance
If cells are subdivided to increase information capacity, then information density is improved, but distinction between subdivided cells becomes more difficult
Solution Approach 1:
Instead of subdividing cells into smaller subcells that are difficult to distinguish, the invention segments the information into two separate coding systems. The first code uses traditional cell-level information, while the second code uses mark-level information within special cells. This avoids the need to distinguish extremely small subcells while still achieving high information capacity.
Solution Approach 2:
The invention adds a new dimension of information expression by introducing marks within cells. Rather than dividing cells into smaller units in the same spatial dimension, the second code utilizes the internal space of selected cells to place additional marks, effectively adding an information layer in a different dimensional space.
3Quantity of substance
If more information is stored in the code, then information density is improved, but reading accuracy deteriorates
Solution Approach 1:
The information is segmented into two independent code systems with different functions. The first code provides a reliable base layer that is easy to read accurately, while the second code adds supplementary information in special cells. This segmentation ensures that the core information maintains high reading accuracy while the total information capacity is increased.
Solution Approach 2:
Different parts of the code have different qualities and functions. Most cells participate in the first code with standard readability characteristics, while selected special cells contain the second code with additional marks. This local differentiation allows the majority of the code to maintain high reading accuracy while specific localized areas provide enhanced information density.
Data Source
AI summary
For one-dimensional or two-dimensional images in which cells identified as bright-colored cells and cells identified as dark-colored cells are arranged in a matrix, the amount of information is further increased while the difficulty in reading information expressions are reduced.For this purpose, invented is a composite code comprising a first code, in which a plurality of cells each having a predetermined area are orderly arranged, and in which data is defined by each of the predetermined areas having one of two or more colors that can be distinguished from each other, and a second code in which special cells having an area other than the predetermined area form at least a part of the plurality of cells, and in which data is defined by distinguishable marks arranged at predetermined positions in the area other than the predetermined area.