Charging Identification Code Authentication for Electronic Devices

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Solution Overview

Problem

The unification of charging ports in consumer electronic devices poses a risk to privacy and security, as non-owners can charge and potentially access or steal devices, compromising user data.

Innovation Solution

An electronic device equipped with a power input port, battery module, and processor that uses a default charging identification code stored in the power supply circuit to authenticate users before allowing charging, preventing unauthorized charging operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If charging ports are unified across electronic devices, then charging convenience and compatibility are improved, but privacy and security protection deteriorate because non-owners can charge and potentially access devices

Engineering Contradiction:

Improvecharging port compatibilityVSAvoidprivacy and security risk

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a charging identification code as an intermediary authentication mechanism between the charging port and the power source. This code, stored in the power supply circuit, acts as a mediator that verifies user authorization before allowing charging, thereby maintaining port compatibility while preventing unauthorized access to device data

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent applies preliminary anti-action by pre-storing the charging identification code in the power supply circuit before any charging operation occurs. This pre-configured authentication mechanism proactively prevents unauthorized charging attempts by verifying the user's identity before the charging process can begin, countering potential security threats in advance

Inventive Principle:

Principle #9Preliminary anti-action

2Ease of operation

If software-based password protection is used, then user authentication is achieved, but security is insufficient because determined individuals can bypass it through rooting or hardware replacement

Engineering Contradiction:

Improveuser authenticationVSAvoidsecurity protection

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent replaces the software-based password protection mechanism with a hardware-based authentication system. The charging identification code is stored in the power supply circuit's hardware memory, making it physically difficult to bypass through software rooting or chipset replacement, thereby enhancing security while maintaining ease of use through automatic hardware verification

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent segments the authentication function into a separate hardware component (the power supply circuit with embedded identification code) rather than relying solely on the main processor's software authentication. This segmentation isolates the security-critical authentication logic in dedicated hardware, making it more resistant to software-based attacks and system compromises

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS10763683B2Electronic device and charging control method using the same

Publication Date: 2020.09.01 WISTRON CORP

AI summary

An electronic device and a charging control method using the same are provided. The electronic device includes a power input port, a battery module, a power supply circuit, and a processor. The power input port is configured to receive an external power. The battery module supplies stored power to the electronic device. The power supply circuit has a default charging identification code. When the external power is supplied to the electronic device through the power input port, the power supply circuit obtains a user charging identification code through the processor and compares whether the user charging identification code matches the default charging identification code. When the user charging identification code matches the default charging identification code, the power supply circuit starts to charge the battery module.