Pressure-Sensing Pointer Control for Limited Space
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Solution Overview
Problem
Conventional input devices, such as mice and touchpads, require physical movement to control a pointer on a screen, limiting control within a limited space and efficiency.
Innovation Solution
A method and apparatus using direction detection means to sense lateral forces and pressure sensors or tactile sensors to control a pointer's movement, allowing for precise control and speed adjustment based on applied pressure, enabling pointer movement within a limited space with minimal physical movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional mouse is used to control a pointer, then the pointer can be moved by detecting physical movement, but a space for physical movement is required which limits control within limited space
Solution Approach 1:
The patent replaces the mechanical movement-based mouse system with a pressure sensing system. Instead of detecting physical displacement of a ball or optical movement, the system uses pressure sensors to detect the magnitude and direction of force applied by the user. This substitution eliminates the need for physical movement space while maintaining pointer control functionality.
Solution Approach 2:
The patent changes the control parameter from physical displacement to applied pressure. By detecting pressure magnitude and direction instead of movement distance, the system enables pointer control within a limited space. The pressure sensor converts mechanical force into electrical signals that control pointer position and movement speed.
2Productivity
If pressure sensing is added to detect pressing magnitude, then pointer movement speed can be adjusted, but device complexity increases
Solution Approach 1:
The pressure sensor serves multiple functions simultaneously: it detects both the magnitude of pressing force and the direction of applied force. This multi-functionality allows the system to control both pointer movement speed and direction using a single sensor type, reducing overall device complexity compared to using separate sensors for each function.
Solution Approach 2:
The patent combines the functions of detecting pressing magnitude and determining force direction into a single pressure sensing system. By merging these detection functions, the patent reduces the number of separate components needed while achieving both speed control and directional control of the pointer.
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 easy and accurate control of a pointer on a screen with minimal movement, accelerating pointer movement in response to pressing pressure, thus facilitating rapid navigation across wide screens.
Implementation Method 1
pressing pressure detected by a pressure sensor (320) or a tactile sensor for detecting the magnitude of an external force applied in a vertical direction
Implementation Method 2
direction detection means (310) for detecting a direction of an external force applied in a lateral direction
Data Source
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AI summary
A method of driving an electronic device easily and accurately controls a pointer displayed on a screen of the electronic device. The method of driving an electronic device including an input unit into which information is input by a touch and a screen display unit on which a pointer is displayed in response to the touch includes: a first step of moving the pointer from a point at which the touch is applied to the input unit first in an arbitrary direction in which drag of the pointer is performed; a second step of stopping the movement of the pointer when the drag is stopped; and a third step of additionally moving the pointer in a direction, which is directed from the point at which the touch is applied first to a point to which pressing pressure is applied, in response to pressing pressure when the drag is stopped.