Embedding Multi-SPM Data in Image Pixels for High-Speed Printing
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Solution Overview
Problem
In high-speed printing systems, the load of transmitting data to the printing machine is increased due to the need for separate data files for image and multi-SPM selection information, leading to reduced operation efficiency and increased costs.
Innovation Solution
An image data generating apparatus that embeds additional information, such as multi-SPM selection information, into the lower bits of specific pixels of the source image data after RIP processing, allowing for reduced data transmission by integrating this information into the image data file.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If separate data files are used for image data and multi-SPM selection information, then the printing machine can process high-quality images with multiple threshold matrices, but the data transmission load increases and operation efficiency decreases
Solution Approach 1:
The patent combines multi-SPM selection information with image data into a single integrated data structure. The selection information is embedded within the raster image data, eliminating the need for separate data files and reducing data transmission load while maintaining the capability to switch between multiple threshold matrices for high-quality printing
2Adaptability or versatility
If separate data files are used for image data and multi-SPM selection information, then comprehensive print control is achieved, but data transmission volume increases leading to higher costs
Solution Approach 1:
The patent merges selection information with image data into one integrated file, reducing total data transmission volume while preserving full print control capability through embedded selection flags that enable multi-SPM functionality within the unified data structure
3Speed
If data transmission capacity is increased to handle separate multi-SPM data files, then high-speed printing can be maintained, but the apparatus becomes more expensive
Solution Approach 1:
By combining selection information with image data into a single transmission stream, the patent reduces the total data volume that needs to be transmitted, allowing high-speed printing to be maintained without requiring increased data transmission capacity or more expensive apparatus
Data Source
AI summary
A replacing unit replaces lower bits of tone values expressed in binary numbers of the specific pixels of source image data with additional information needed in a print data creating process in a printing machine. That is, least significant bits of the tone values expressed in binary numbers of specific pixels of the source image data after RIP processing are replaced with information to be communicated to the printing machine. As the information to be communicated to the printing machine, there is multi-SPM selection information used in a halftone dot process in the printing machine.