Stylus Pen Battery Status Display via Wireless Link
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Solution Overview
Problem
Existing electronic devices face challenges in monitoring and displaying the battery state and connected state of a stylus pen due to space and power constraints, which affects seamless wireless communication and user identification of the correct stylus pen among multiple connected devices.
Innovation Solution
An electronic device and method that establish a wireless communication link with a stylus pen to monitor its battery state and connected status, displaying this information to the user through a graphical user interface, using short-range wireless communication protocols like Bluetooth Low Energy, without requiring a separate display on the stylus pen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the stylus pen includes a separate display to show battery state and connection status, then information visibility is improved, but mounting space and power consumption increase
Solution Approach 1:
The electronic device serves as an intermediary that receives status information from the stylus pen via wireless communication and displays it on the electronic device's screen. This eliminates the need for a display on the stylus pen itself, reducing its power consumption and space requirements while maintaining full information visibility through the electronic device's display capabilities.
2Reliability
If the electronic device monitors battery state and connection status periodically, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The electronic device implements periodic monitoring of battery state and connection status at predetermined time intervals through scheduled tasks. This approach ensures reliable status information is obtained while allowing the system to enter low-power states between monitoring cycles, balancing communication reliability with power conservation.
3Adaptability or versatility
If multiple stylus pens are supported for user identification, then versatility is improved, but device complexity increases
Solution Approach 1:
The electronic device implements a universal identification mechanism using unique identifiers (such as MAC addresses or device IDs) that work across multiple stylus pens. The system maintains a registry of connected stylus pens and automatically identifies them through wireless communication protocols, enabling support for multiple pens without requiring complex dedicated hardware for each pen type.
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 ensures continuous monitoring and display of stylus pen battery and connection status, preventing performance reduction and user errors from using incorrect pens, while optimizing power usage and reducing unnecessary power consumption.
Implementation Method 1
Because the stylus pen may interact with the electronic device based on an electromagnetic induction manner or a short-range wireless communication protocol
Data Source
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AI summary
An electronic device for displaying information related to a stylus pen is provided. The electronic device includes a wireless communication link, which is based on a short-range wireless communication protocol, with a stylus pen inserted into an inner space of a housing, detects that the stylus pen is detached from the housing, receives a signal including information about a battery state of the stylus pen from the stylus pen through the short-range wireless communication protocol, and displays a first graphical user interface (GUI) indicating the battery state, based at least on the information about the battery state.