Multi-Window Scanner with Variable CCD Timing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional scanners require multiple scanning procedures and post-editing processes to capture images of multiple areas, leading to inefficiency and increased time and cost.
Innovation Solution
An image processing device with multiple scan windows allows for simultaneous capture of multiple images with different resolutions in a single scan operation, using a control unit to adjust the frequency of a CCD timing signal for each scan window.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple scanning procedures are used to capture images of multiple areas, then image quality and resolution can be maintained, but scanning time and operational complexity increase significantly
Solution Approach 1:
The patent divides the document into multiple scan windows, where each window corresponds to a specific area that can be scanned independently. This segmentation allows the system to process different regions simultaneously with different resolutions without requiring multiple sequential scanning operations, thereby reducing total scanning time while maintaining image quality.
Solution Approach 2:
The patent introduces a temporal dimension by using different timing signals for different scan windows. By controlling the CCD sensor with multiple timing signals at different frequencies, the system can capture multiple areas at different resolutions simultaneously in the same scanning pass, transforming a sequential process into a parallel one that reduces time loss.
2Measurement precision
If multiple scanning procedures are used to capture images of multiple areas, then resolution requirements can be met, but operational complexity and cost increase
Solution Approach 1:
The patent segments the scanning task into multiple independent scan windows, each with its own resolution settings. This allows different areas to be scanned at their respective required resolutions simultaneously through a single operational sequence, reducing the number of operations needed and simplifying the overall process while maintaining resolution requirements.
Solution Approach 2:
The patent implements dynamic control of the CCD timing signals, where the frequency and timing of signals can be adjusted for different scan windows based on resolution requirements. This dynamic adjustment allows the system to adapt to different resolution needs without requiring multiple static scanning procedures, thereby reducing operational complexity.
3Ease of operation
If a single scan window is used to scan multiple areas, then scanning operations are simplified, but the ability to capture different resolutions for different areas is lost
Solution Approach 1:
The patent divides the single scan window into multiple scan windows, each capable of being configured with different resolution settings. This segmentation maintains operational simplicity by allowing all areas to be scanned in a single pass while enabling different resolutions for different areas through independent configuration of each scan window.
Solution Approach 2:
The patent applies local quality control by allowing each scan window to have its own resolution settings tailored to the specific requirements of the area it covers. This enables different parts of the document to be scanned at different resolutions simultaneously, providing resolution flexibility while maintaining the simplicity of a single scanning operation.
4Productivity
If multiple scan windows with different resolutions are implemented, then scanning efficiency improves, but device complexity increases
Solution Approach 1:
The patent segments the control task into multiple independent control channels, one for each scan window. Each control channel manages its own timing signal and resolution settings, which simplifies the overall control architecture by allowing modular management of different scan areas without requiring a single complex control system.
Solution Approach 2:
The patent uses parameter changes in the timing signal frequencies to control different resolutions for different scan windows. By adjusting the frequency of timing signals rather than using complex hardware modifications, the system achieves high scanning efficiency with minimal increase in device complexity, as the same CCD sensor can be controlled at different rates through software parameter adjustment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method significantly reduces the complexity and time required for scanning multiple areas by generating multiple images with different resolutions in a single operation, enhancing scan efficiency and reducing costs.
Implementation Method 1
the scanner projects light onto a to-be-scanned document and receives the light reflected from the document with a photo-sensing device so as to capture a scan image
Data Source
AI summary
A method for simultaneously capturing images of multiple areas is applied to an image processing device. The method includes scanning a document and obtaining a preview image of the document; providing N scan windows for selecting N to-be-scanned areas from the preview image, wherein N is an integer; setting N scan resolutions respectively for the N scan windows; scanning the document; and outputting N scan images corresponding to the N scan windows according to N frequencies of a timing signal corresponding to the N scan resolutions.