Wireless NFC Reset for Sealed Electronic Devices
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Solution Overview
Problem
There is a need for techniques to reset electronic devices without physical reset buttons, especially in devices with acute space limitations or sealed cases, where direct physical intervention is impractical or risky.
Innovation Solution
The implementation of a near field communications (NFC) tag with a logic circuit and rectifier in electronic devices, allowing for a wireless reset by receiving a specific NFC signal with a predefined characteristic signature, which generates a reset signal to resettable components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a physical reset button is provided in electronic devices, then the device can be reset easily, but the device structure becomes more complex and space is consumed
Solution Approach 1:
The patent replaces the mechanical reset button with a wireless NFC-based reset system. The NFC tag and reader eliminate the need for physical buttons, switches, or manual interventions, substituting mechanical operations with electromagnetic field-based wireless communication. This resolves the contradiction by maintaining ease of operation through wireless triggering while reducing structural complexity and space requirements.
Solution Approach 2:
The patent introduces an NFC tag as an intermediary component that mediates the reset operation. Instead of directly pressing a button to reset, the system uses an NFC tag to transmit the reset command wirelessly to the device. This intermediary approach eliminates the need for physical reset mechanisms while preserving the ability to easily reset the device through contactless interaction.
2Ease of operation
If a physical reset button is provided in electronic devices, then the device can be reset easily, but the device case cannot be fully sealed
Solution Approach 1:
The patent replaces mechanical reset buttons that require physical access with a wireless NFC-based reset system. This substitution allows the device case to be fully sealed against environmental factors while maintaining the ability to reset the device easily through contactless NFC communication, thus resolving the contradiction between operational ease and sealing integrity.
3Ease of repair
If physical intervention is required to reset a device, then the reset can be performed, but it becomes impractical or risky in constrained environments
Solution Approach 1:
The patent replaces mechanical intervention methods with wireless NFC-based reset capability. This allows reset operations to be performed without physical access to reset buttons or openings in the device, making it practical and safe to reset devices in constrained environments such as medical implants, sealed enclosures, or devices in hard-to-reach locations.
Solution Approach 2:
The NFC tag acts as an intermediary that enables reset operations without direct physical intervention. By placing the NFC tag near the device, the reset command is transmitted wirelessly through electromagnetic fields, eliminating the need for physical access to the device interior or reset mechanisms, thus improving accessibility while maintaining repair capability.
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 hardware reset of electronic devices without software involvement or physical intervention, facilitating troubleshooting and restoration of devices in constrained environments.
Implementation Method 1
NFC tag includes an NFC receiver coil configured to receive a wireless signal
Implementation Method 2
a rectifier configured to rectify the received wireless signal
Data Source
AI summary
A method for a hard reset of a target electronic device includes establishing a near field communications (NFC) channel to the target electronic device, receiving a wireless signal at the target electronic device over the NFC channel, and comparing a signature of the received wireless signal with a predefined characteristic signature of a reset command signal. Responsive to the comparing, the method includes generating a reset signal resetting the target electronic device.