Touch Control Using Contact Area for Single-Press Adjustment
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Solution Overview
Problem
Existing touch control systems have single key functions, requiring repeated operations and lengthy adjustment times, such as when adjusting volume, due to the inability to utilize varying contact areas during touch control.
Innovation Solution
A touch control system that acquires and transmits control instructions based on the area sizes of first and second contact areas during touch control, allowing multiple functional applications of touch control response regions without repeated operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single key function is assigned to each touch control region, then the system is simple to operate, but the operation time is long and repeated operations are required
Solution Approach 1:
The patent changes the parameter of contact area size during touch control. By detecting the changing contact area as the finger presses down on the touch screen, the system maps different area sizes to different control values, enabling continuous adjustment (e.g., volume from minimum to maximum) in a single pressing motion rather than requiring multiple discrete taps
Solution Approach 2:
The patent makes a single touch control region perform multiple functions by mapping different contact area sizes to different control outcomes. The same physical region can produce different control effects (e.g., different volume levels, brightness levels) depending on the contact area, eliminating the need for multiple separate keys or repeated operations
2Measurement precision
If repeated operations are required to achieve full range control, then the control precision is high, but the productivity is low
Solution Approach 1:
The patent implements continuous useful action by detecting the contact area continuously during the pressing process. As the finger presses down and the contact area changes continuously, the system continuously updates the control value, allowing the user to achieve full-range control (e.g., minimum to maximum volume) in a single continuous motion rather than through discrete repeated operations
Data Source
AI summary
Disclosed are a touch control system and a touch control method. The touch control method is applicable to the touch control system. The touch control system includes: a touch control sensing module, including a touch control region configured to acquire a contact area, the contact area including a first contact area and a second contact area; and a processing unit, connected to the touch control sensing module and configured to execute a control program and transmit a control instruction to a controlled module. The control program includes: acquiring the first contact area at a first time point; acquiring the second contact area at a second time point after the first time point; and transmitting the control instruction based on area sizes of the first contact area and the second contact area in the touch control region.