Dynamic Display Area Adjustment for Page Preview Clarity
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Solution Overview
Problem
Conventional printing systems fail to effectively display a list of pages as reduced images, leading to poor visual perceptibility due to high reduction ratios, varying page sizes, and insufficient blank spacing, resulting in users struggling to grasp the contents of pages with elongated or small-sized images.
Innovation Solution
A printing system that dynamically adjusts segment unit sizes and enlargement/reduction ratios based on page dimensions, ensuring display areas are larger than the segment unit size for elongated pages and inserting blanks between images to maintain visual clarity, while rotating images for mixed orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a predetermined segment is prepared and a page is enlarged/reduced to fit it in the segment, then the display area is standardized, but the reduced image of a longitudinally long-sized page becomes a line, degrading visual perceptibility
Solution Approach 1:
The patent applies dynamics by making the display area size adjustable rather than fixed. The system dynamically determines the display area size based on the aspect ratio of the page image, allowing the display area to adapt between a standard segment size and an enlarged size that is an integer multiple of the segment size, thereby preventing long-sized pages from being compressed into lines while maintaining standardized display for normal pages
Solution Approach 2:
The patent changes the parameter of display area size based on the aspect ratio parameter of the page image. When the aspect ratio exceeds a predetermined threshold, the system increases the display area size to an integer multiple of the segment size, allowing the page to be displayed with sufficient detail without being reduced to a line
2Adaptability or versatility
If the size is greatly different between pages, like A0 and A4 sizes, then the display can accommodate various page sizes, but the image of a small-sized page becomes excessively small, degrading visual perceptibility
Solution Approach 1:
The patent applies local quality by providing different display treatments to different pages based on their individual characteristics. Each page is evaluated based on its aspect ratio and size, and the display area size is locally adjusted for each page - small pages receive enlarged display areas (integer multiples of segment size) while larger pages use standard segment sizes, ensuring each page receives appropriate visual attention
Solution Approach 2:
The patent segments the display area into multiple units based on the segment size. When a page requires enhanced visibility, the display area is expanded to include multiple segment units (e.g., 2x2 grid, 1x2 grid), allowing small pages to occupy more display space while maintaining the standardized segment structure for layout consistency
3Device complexity
If a predetermined segment is prepared for display, then the display layout is standardized, but no sufficient blank is set between display areas, degrading visual perceptibility
Solution Approach 1:
The patent uses segmentation by dividing the display area into standardized segment units and introducing blank spaces between these segments. The blank space acts as a visual separator between adjacent page displays, improving distinguishability while maintaining the overall standardized grid-based layout structure for simplicity
Data Source
AI summary
A printing system configured to set a segment unit size serving as a unit of a display area for displaying, as images, a list of pages which form the document; acquire a width and a height of each page image from the document data; calculate, when a value of a ratio of the width and the height of the page acquired in the acquiring exceeds a predetermined value, a display area size having a display region larger than the segment unit size; determine, for a page having the value of the ratio exceeding the predetermined value, an enlargement/reduction ratio so as to fit the page into the display area size; and display, a list of pages which form the document, by enlarging or reducing the page based on the enlargement/reduction ratio determined in the determining and displaying the page in a display screen at the display area.