Capacitive Keyboard Key Threshold Adjustment
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Solution Overview
Problem
Gamers face difficulties using standard keyboards as they require different keystroke depths for various gaming operations, and existing technologies cannot adjust the on-sensing position of individual keys.
Innovation Solution
A keyboard device with a memory system for storing threshold data for each key, a capacitance detecting unit, a capacitance-voltage converting unit, and a depression determining unit that allows users to adjust the on-sensing position by comparing detected capacitance with stored threshold data, enabling customizable keystroke depths for each key.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the on-sensing position is changed for all keys collectively, then the keyboard can adapt to different game types, but individual key customization is lost
Solution Approach 1:
The patent divides the keyboard into individually controllable key units, each with its own on-sensing position that can be adjusted independently. This segmentation allows gamers to customize specific keys for different functions while maintaining overall adaptability to various game types.
Solution Approach 2:
The patent implements dynamic adjustment of on-sensing positions for each key through capacitive sensing technology. The system can dynamically change the threshold for detecting key presses, allowing the keyboard to adapt its sensitivity and response characteristics based on different gaming requirements for different keys.
2Speed
If the keystroke is shortened for faster response, then gaming performance improves, but the on-sensing position becomes harder to control precisely
Solution Approach 1:
The patent replaces traditional mechanical switch mechanisms with capacitive sensing technology. This substitution allows for precise electronic control of the on-sensing position without the physical constraints of mechanical travel, enabling both fast response times and precise threshold control through electrical parameters.
Solution Approach 2:
The patent changes the sensing parameter from mechanical displacement to electrical capacitance. By measuring capacitance changes rather than physical key travel, the system achieves precise control over the on-sensing position while maintaining extremely fast response speeds, as electrical measurements occur much faster than mechanical movement.
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 a single keyboard to be adaptable to various applications with high responsivity by allowing users to change and adjust the on-sensing position for each key, accommodating different gaming needs and increasing the keyboard's versatility.
Implementation Method 1
a key capacitance detecting unit that detects a capacitance of the key corresponding to the key address that is selected
Implementation Method 2
a capacitance-voltage converting unit that converts the capacitance of the key detected by the key capacitance detecting unit into a voltage
Data Source
AI summary
A keyboard device applicable to various kinds of applications with high responsivity is provided. The keyboard device includes keys to which key addresses are assigned and a memory in which data for determining whether a key has been depressed is writable and readable at an memory address corresponding to each of the key addresses. The device also includes a key capacitance detecting unit to detect a capacitance of the key corresponding to a selected key address, a capacitance-voltage converting unit to convert the capacitance of the key detected by the key capacitance detecting unit into a voltage, a data converting unit that reads threshold data in the memory address in the memory corresponding to the key address that is selected to convert the threshold data into analog data, and a depression determining unit that compares the analog data with the voltage to determine whether the key has been depressed.