Touch Screen Mode Switching via Key Pulse Lookup
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Solution Overview
Problem
Users face inconvenience when switching touch modes on electronic apparatuses, as they need to search and run application programs within the operating system for each mode change.
Innovation Solution
An electronic apparatus with a touch screen, key module, and controller that generates a trigger signal upon key press, allowing the controller to determine the number of presses and switch touch modes based on a lookup table, eliminating the need for users to manually search and run application programs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users manually search and run application programs to switch touch modes, then the touch mode can be changed, but the operation process becomes complex and time-consuming
Solution Approach 1:
The system pre-sets multiple touch modes (hand touch mode, rain mode, touch pen mode, glove mode) and stores their corresponding index values in a lookup table. When a user presses the key, the controller immediately retrieves the next mode index from the lookup table without requiring users to search or manually configure settings, enabling instant mode switching.
Solution Approach 2:
The controller automatically manages the touch mode switching process by detecting key presses, counting pulses, querying the lookup table for the next mode index, and updating the touch screen controller. This self-service mechanism eliminates the need for users to manually search for or configure application programs, reducing both operational complexity and time consumption.
2Adaptability or versatility
If multiple application programs are provided for different touch modes, then the electronic apparatus supports multiple touch modes, but the device complexity increases
Solution Approach 1:
A single key module serves multiple functions by enabling switching between different touch modes (hand touch, rain, touch pen, glove modes). The controller universally manages all mode transitions through a unified key press detection and lookup table query mechanism, eliminating the need for separate application programs for each mode while maintaining support for multiple touch modes.
Solution Approach 2:
Instead of implementing separate application programs for each touch mode, the system uses a lookup table that stores index values corresponding to different modes. The controller copies or retrieves the appropriate mode index from the lookup table based on key press count, simplifying the system architecture while preserving multi-mode functionality.
Data Source
AI summary
An electronic apparatus and a method for switching touch modes thereof are provided. A touch screen of the electronic apparatus has a plurality of touch modes. A current touch mode of the touch screen is one of the plurality of touch modes. The method includes the following steps. Firstly, the number of times a key module of the electronic apparatus is pressed is determined according to a pulse count of a trigger signal provided by the key module. Next, a first touch mode of the plurality of touch modes is looked up in a lookup table according to the number of times. Afterwards, the current touch mode of the touch screen is switched to the first touch mode.