Portable Device Cursor Control via Inertial Sensing
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Solution Overview
Problem
Conventional touch panel operation interfaces lack the ability to detect and accurately determine cursor movement without physical contact, leading to difficulties in specifying precise positions and performing operations similar to mouse interactions, especially with finger gestures, resulting in potential errors and increased user learning curves due to differing operation methods.
Innovation Solution
A portable information processing apparatus equipped with a touch sensor and an inclination or acceleration sensor that determines cursor coordinates based on the device's orientation and motion, allowing for cursor position determination and correction to align with user intent, enabling precise cursor movement and operation similar to mouse interactions without physical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If touch panel operation interface is used, then physical contact operation is enabled, but accurate cursor movement without physical contact cannot be achieved
Solution Approach 1:
The patent combines multiple sensors (acceleration sensor, inclination sensor, touch sensor) into an integrated operation detection system. The acceleration/inclination sensors detect device orientation and motion to determine cursor movement, while the touch sensor provides contact input data. By merging these sensor inputs, the system achieves both touch panel operation capability and accurate cursor position determination through non-contact gestures.
Solution Approach 2:
The patent introduces acceleration and inclination sensors as intermediary devices that detect device orientation and motion. These sensors act as mediators between physical device manipulation and cursor position determination on the display. The sensors capture subtle device movements and orientations, translating them into accurate cursor coordinates without requiring direct touch panel contact.
2Ease of operation
If finger gestures are used for operation, then physical contact is simplified, but precise position specification becomes difficult
Solution Approach 1:
The patent replaces direct mechanical touch interaction with inertial sensing-based cursor control. Instead of relying on finger position on the touch panel surface, the system uses acceleration and inclination sensors to detect device orientation and motion patterns. This substitution allows finger gestures to control cursor movement through device orientation changes, maintaining ease of operation while achieving precise position specification through sensor-based detection.
3Adaptability or versatility
If different operation methods are provided, then various user preferences are accommodated, but user learning curve increases
Solution Approach 1:
The patent creates a universal operation interface that handles both touch-based and gesture-based operations through a unified cursor position determination mechanism. The system processes inputs from touch sensors, acceleration sensors, and inclination sensors through a single coordinated framework, allowing different operation methods (finger taps, device tilting, shaking gestures) to be accommodated without requiring separate operation modes. This multi-functionality reduces learning time while maintaining adaptability to various user preferences.
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 accurate and intuitive cursor movement and operation on touch panels, improving user experience by allowing precise position specification and reducing errors, while maintaining compatibility with mouse operation methods.
Implementation Method 1
a first acceptance unit accepting first inclinations or first accelerations of a portable information processing apparatus having a display screen in a first state
Implementation Method 2
The second acceptance unit accepts second inclinations or second accelerations of the information processing apparatus in a second state
Data Source
AI summary
An information processing apparatus includes a first acceptance unit, a second acceptance unit and a coordinate determination unit. The first acceptance unit accepts first inclinations or first accelerations of a portable information processing apparatus having a display screen in a first state. The second acceptance unit accepts second inclinations or second accelerations of the information processing apparatus in a second state. The coordinate determination unit determines coordinates of a mark for pointing to a position on the display screen in the second state based on the first inclinations accepted by the first acceptance unit and the second inclinations accepted by the second acceptance unit or based on the first accelerations accepted by the first acceptance unit and the second accelerations accepted by the second acceptance unit.