Multi-Sensor Activation Circuit for Portable Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Portable electronic devices, such as wireless handheld communication devices, face challenges in efficiently activating or deactivating components to conserve power, often requiring user intervention through specific buttons or switches, which can be inconvenient and lead to inaccurate activation due to environmental conditions.
Innovation Solution
A system utilizing multiple sensors, including heat and infrared sensors, strategically placed to detect user interaction and environmental conditions, evaluates signals to determine whether to activate or deactivate device components, eliminating the need for specific activation buttons and improving power management by accurately determining user intent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors are used to detect user interaction, then activation accuracy is improved, but device complexity increases
Solution Approach 1:
The system segments the detection function by using multiple specialized sensors (heat sensor, infrared sensor, motion sensor) instead of a single complex sensor. Each sensor targets a specific aspect of user interaction (thermal energy, infrared radiation, motion), dividing the overall detection task into manageable parts that collectively improve activation accuracy while keeping individual sensor complexity low.
Solution Approach 2:
The sensors are strategically placed to serve multiple functions: detecting user presence, determining interaction intent, and providing environmental context. This multi-functionality allows the system to achieve high activation accuracy using the same sensor array for various detection purposes, rather than requiring separate systems for each function.
2Weight of moving object
If physical input keys are reduced, then device portability is improved, but ease of operation deteriorates
Solution Approach 1:
The system replaces mechanical input keys with a sensor-based detection system that automatically senses user interaction through thermal energy, infrared radiation, and motion. This substitution eliminates the need for physical buttons, switches, or keys, reducing device bulk and weight while maintaining ease of operation through automatic, intuitive detection of user intent.
Solution Approach 2:
The device performs self-service by automatically detecting and responding to user interaction without requiring manual activation through physical keys. The sensor system autonomously determines when the user intends to activate the device, eliminating the need for separate control mechanisms and simplifying the user interface.
3Measurement precision
If sensors are strategically placed, then activation accuracy is improved, but manufacturing complexity increases
Solution Approach 1:
The system applies local quality by strategically placing sensors in specific locations optimized for detecting user interaction (e.g., near the display, on the front surface). Each sensor is positioned to maximize its detection capability for the intended interaction type, ensuring high activation accuracy. The manufacturing complexity is managed by using standard sensor components that can be positioned during assembly rather than requiring custom integration.
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
This solution enhances power savings by accurately determining user interaction, reduces the number of physical input keys, and provides a more robust activation system with improved accuracy, preventing false activations and allowing for thinner device profiles while maintaining functionality.
Implementation Method 1
A first sensor (e.g., a heat sensor) may be used to detect a condition of the environment, such as heat
Implementation Method 2
A second sensor (e.g., an infrared sensor) may be used to detect the same or a different condition of the environment
Data Source
AI summary
The disclosure provides a system and method for activating an electronic device. The activation circuit comprises: a first sensor to monitor for a first condition relating to an environment as affected by a user of the device; a second sensor to monitor for the first condition relating to an environment isolated from effects of the user; and an activation circuit to evaluate signals from the first and second sensors to determine whether to change an activation state of a component on the device. This may involve activating or deactivating the component.