Wireless Power Reset for Keyless Electronic Devices

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Solution Overview

Problem

Keyless electronic devices without physical keys face challenges in hardware reset, as errors in input sensor modules can prevent the device from resetting, limiting design flexibility and user experience.

Innovation Solution

Incorporating a wireless power module and a power management integrated circuit (PMIC) to detect current changes and generate a hardware reset signal based on wireless power input, allowing for wireless charging or NFC-induced resets.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If physical keys are removed to achieve keyless design, then design aesthetics and flexibility are improved, but hardware reset capability deteriorates when input sensor modules fail

Engineering Contradiction:

Improvedesign aestheticsVSAvoidhardware reset capability

Core Design Contradiction:

ShapeVSReliability

Solution Approach 1:

The patent introduces wireless power input as an intermediary mechanism to trigger hardware reset. When the device is placed on a wireless charging pad, the wireless power signal serves as a mediator to activate the reset function through the PMIC, bypassing the need for physical buttons or sensor-based input methods.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical button press system with a wireless electromagnetic field-based reset mechanism. Instead of using physical keys or sensor inputs that rely on mechanical contact or electrical signals from buttons, the system uses wireless power transmission electromagnetic fields to trigger the reset condition through current detection by the PMIC.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If input sensor modules are used for keyless operation, then physical key limitations are removed, but system reliability deteriorates when sensor errors occur

Engineering Contradiction:

Improvekeyless operation capabilityVSAvoidoperation reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system enables self-service reset functionality where the device can automatically reset itself through wireless power detection without requiring user interaction via sensors or buttons. The PMIC detects the wireless power current and automatically generates the reset signal, allowing the system to recover from errors autonomously.

Inventive Principle:

Principle #25Self-service

3Reliability

If wireless power module is added for reset functionality, then hardware reset reliability is improved, but device complexity increases

Engineering Contradiction:

Improvehardware reset reliabilityVSAvoidmodule quantity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies multi-functionality to the wireless power module by enabling it to serve both its primary function of wireless charging and a secondary function of triggering hardware reset. The PMIC monitors the same wireless power current for both charging operations and reset condition detection, allowing one module to fulfill multiple purposes without adding dedicated reset hardware.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11051251B2Hardware reset control method and electronic device

Publication Date: 2021.06.29 SAMSUNG ELECTRONICS CO LTD

AI summary

The disclosure relates to a method for providing hardware reset in an electronic device having at least one non-physical key and the electronic device thereof, and an operating method of the electronic device may include detecting a current amount supplied to a processor, detecting whether wireless power is input, generating a hardware reset signal based on the detected current amount and the wireless power input, and transmitting the generated hardware reset signal to the processor.