Touch Panel Input Directional Movement Correction
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Solution Overview
Problem
Conventional information processing apparatuses using pointing devices face limitations in operability, requiring users to drag markers to specific areas for operations, restricting freedom of operation and prone to unintended actions due to hand jiggling, especially during small-scale or precise movements.
Innovation Solution
The apparatus employs coordinate detection and change amount calculation mechanisms to perform distinct operations based on relative movement amounts in horizontal and vertical directions, allowing concurrent execution of multiple operations and incorporating correction values to mitigate unintended inputs from hand movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the detection area is divided into multiple areas with preset parameters, then the apparatus can change image states based on marker position, but the user cannot freely perform operations in desired positions and must drag the marker to specific areas
Solution Approach 1:
The patent applies universality by enabling the entire detection area to serve multiple functions simultaneously. Instead of dividing the area into specialized zones, any position on the touch panel can trigger different operations based on movement direction and magnitude, making the whole area versatile for various gestures and commands.
Solution Approach 2:
The patent implements dynamics by making the operational response dependent on the dynamic characteristics of the dragging motion itself (direction, distance, speed) rather than static area boundaries. The system adapts its interpretation of user intent based on how the marker is moved, not where it is moved to.
2Reliability
If the marker must be dragged to a specific area to perform an operation, then the apparatus can execute predetermined functions, but the user may perform unintended operations due to hand jiggling during small-scale movements
Solution Approach 1:
The patent applies partial action by requiring only a minimal dragging motion to trigger an operation, rather than requiring the marker to reach a specific target area. The system interprets the direction and intent of the partial movement itself, reducing the physical effort and precision burden on the user while maintaining reliable operation recognition.
3Adaptability or versatility
If the detection area is divided into multiple areas, then different parameters can be set for each area, but the user cannot change the image while the marker remains in the same area
Solution Approach 1:
The patent adds another dimension to the interaction model by incorporating movement direction as a key parameter alongside position. Instead of relying solely on positional areas, the system uses the directional component of the dragging motion to determine which operation to execute, enabling continuous operation changes throughout the detection area.
Data Source
AI summary
An information processing apparatus includes a pointing device and a display section for displaying an image. A coordinate detection section detects coordinates pointed to by the pointing device. A first change amount calculation section calculates a change amount of the coordinates in a first direction, the coordinates obtained when inputting is continuously performed by the pointing device. A second change amount calculation section a change amount of the coordinates in a second direction, the coordinates obtained when inputting is continuously performed by the pointing device. A first operation section performs a first operation based on the change amount in the first direction, the change amount calculated by the first change amount calculation section. A second operation section performs, based on the change amount in the second direction, a second operation different from the first operation, the change amount calculated by the second change amount calculation section.