Capacitive Touchpad Remote Control with Dynamic Function Allocation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional remote controls rely on standardized button layouts and optical/mechanical sensors, which are prone to wear and tear and require direct visual interaction, limiting their usability and durability.
Innovation Solution
An electronic control device featuring a capacitive touchpad with dynamic function allocation, a removable shell for mode switching, 360-degree infrared diodes, and a radio transceiver for proximity-based functionality, eliminating the need for visual indicators and enhancing robustness and user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If optical sensors are used to detect surface interactions, then the device can sense movement and generate control signals, but the sensitivity and success depend heavily on distance and surface compatibility
Solution Approach 1:
The patent replaces optical sensors with capacitive sensors that detect electrical field changes caused by proximity of conductive or capacitive materials. This substitution eliminates the need for optical line-of-sight and surface reflectivity requirements, allowing reliable detection across various distances and surface types including non-reflective surfaces.
Solution Approach 2:
The system dynamically adjusts detection parameters based on the detected material properties. The capacitive sensors can adapt their sensitivity thresholds and detection ranges to accommodate different materials (conductive, semi-conductive, insulating), enabling versatile operation across diverse surfaces while maintaining reliable detection.
2Ease of operation
If mechanical sensors are used to measure rotation, then the device can track circular movements, but the sensors deteriorate over prolonged periods
Solution Approach 1:
The patent replaces mechanical rotation sensors with capacitive sensors arranged in a circular pattern. These capacitive sensors detect proximity changes without mechanical contact, eliminating wear and tear while maintaining the ability to track circular movements and generate appropriate control signals.
Solution Approach 2:
The capacitive sensor array continuously monitors its own operational state and maintains detection accuracy over time without requiring calibration or replacement. The system automatically compensates for environmental changes and maintains reliable movement tracking throughout the device lifespan.
3Ease of operation
If standardized button layouts are used, then previously learned behaviors are tapped into, but direct visual interaction is required
Solution Approach 1:
The patent replaces physical buttons with a capacitive touchpad that detects finger proximity and contact. The touchpad maintains the familiar circular button layout pattern but operates through capacitive sensing rather than mechanical contact, allowing users to interact intuitively without requiring visual confirmation of button positions.
Solution Approach 2:
The capacitive touchpad acts as an intermediary between the user's finger and the control functions. It detects the presence and position of the finger through electrical field changes, translating physical proximity into control signals without requiring visual feedback or mechanical contact points.
4Adaptability or versatility
If the device operates in multiple modes, then functionality is enhanced, but automatic mode switching requires detection of shell removal
Solution Approach 1:
The patent uses capacitive sensors to detect the presence or removal of the device shell by monitoring changes in the electrical field. When the shell is removed, the capacitive characteristics change, automatically triggering mode switching without requiring mechanical switches or complex detection mechanisms.
Solution Approach 2:
The device automatically detects shell removal through its capacitive sensor array and switches operational modes accordingly. The system monitors its own structural state and adapts its functionality based on whether the shell is present, enabling seamless mode transitions without user intervention.
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 intuitive operation without visual cues, extends device lifespan, and provides adaptable functionality with automatic mode changes and user-specific settings, improving usability and durability.
Implementation Method 1
multiple capacitive sensors supported by the body and adapted to detect interaction of the body with its surroundings
Implementation Method 2
multiple infrared diodes mounted inside the base, wherein the diodes are mounted in such a way that the infrared viewing angle is 360 degrees
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
An electronic remote control device, including a body; a touchpad formed by capacitive sensors; a processor and software; and position sensors; wherein the processor and software are arranged to read out inputs from the position sensors and dynamically allocate functions to the capacitive sensors in the touchpad depending on the position of the touchpad in relation to the horizon.