Optical Scanner Rolling Motion Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing systems for mobile communication devices fail to effectively detect rolling motions of body parts, such as fingers, which limits the generation of additional events and increased functionality due to their inability to utilize prints and sleeve properties for motion detection.
Innovation Solution
An optical scanner system that scans a body part's print or sleeve with multiple properties on an optical surface, detecting rolling motions by identifying continuity of the print or properties across different areas, allowing for the generation of events like scrolling or sliding motions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an optical scanner scans a body part's print to detect motion, then rolling and sliding motions can be detected, but the system complexity increases
Solution Approach 1:
The patent uses an optical scanner to capture the print (fingerprint or other body part pattern) of a user's finger or body part. Instead of directly sensing the physical motion, the system creates an optical copy/scanner of the print and tracks changes in this copy across different areas to infer motion. This copying approach enables sophisticated motion detection while keeping the physical interaction simple.
Solution Approach 2:
The patent replaces direct mechanical contact sensing with an optical scanning system. Rather than using mechanical switches or pressure sensors to detect finger motion, the system uses optical fields to scan the print and detect motion through changes in the scanned image. This substitution allows for more versatile motion detection (including rolling motions) while reducing mechanical wear and complexity.
2Measurement precision
If the optical scanner detects motion by comparing print positions in different areas, then motion detection precision improves, but the processing time increases
Solution Approach 1:
The system performs preliminary scanning of the print in a first area before detecting motion. By establishing the initial position and characteristics of the print in advance, the system can more quickly and accurately detect subsequent motion to a second area. This preliminary action reduces the overall processing time while maintaining high precision through the comparison of pre-established reference data.
Solution Approach 2:
The patent divides the detection process into distinct segments: scanning the print in a first area, detecting motion, and scanning in a second area. This segmentation allows the system to process motion detection in discrete, manageable steps rather than continuously, reducing processing time while maintaining precision through focused comparison of specific print portions across areas.
3Adaptability or versatility
If the system detects rolling motion through continuity of the print, then user interface functionality increases, but the device complexity increases
Solution Approach 1:
The patent creates a universal motion detection system that can identify multiple types of motions (rolling, sliding, and other gestures) using the same optical scanning mechanism. By detecting the continuity of the print across different areas and orientations, the system can generate various user interface events (scrolling, sliding motions, etc.) from a single unified approach, increasing functionality without proportionally increasing complexity.
Solution Approach 2:
The system detects rolling motion by monitoring changes in parameters of the scanned print, specifically the continuity and orientation of the print pattern across different areas. By tracking parameter changes (position, orientation, continuity) of the optical scan data, the system can identify rolling motions and generate appropriate interface events without requiring separate detection mechanisms for each gesture type.
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
Enables the detection of rolling and sliding motions, enhancing user interface functionality in mobile devices by generating relevant events, such as scrolling, based on continuous print or property changes, thereby improving user interaction with smaller screens.
Implementation Method 1
An optical scanner scans a first portion of a print of a body part, such as a finger, in a first area of an optical surface
Data Source
AI summary
An optical scanner scans a first portion of a print of a body part such as a finger in a first area of an optical surface. The optical scanner detects a motion of the body part to a second area of the optical surface. This can be done in various ways. One way is for the optical scanner to detect a sliding motion of the body part to determine if most of the first portion of the print is in the second area. Another way is for the optical scanner to determine a rolling motion of the print based on a continuity of the print from the first area to the second area. A similar system and method is disclosed which detects a rolling motion of a body part by using a sleeve with multiple properties.