Wireless Charging Authentication via CPU-Mediated Signal Routing
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Solution Overview
Problem
Commercial wireless charging systems for smartphones lack the ability for a wireless power receiver (PRX) to communicate with the device's CPU, requiring the PRX to autonomously generate passwords for authentication, which is inefficient.
Innovation Solution
A mobile apparatus with a processing circuit and wireless power receiver (PRX) that communicates with a wireless power transmitter (PTX) and a CPU, enabling authentication through a communication circuit that sends authentication signals to a server, allowing secure and controlled wireless charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the PRX autonomously generates passwords for authentication, then the authentication process can be completed, but the system security is insufficient and the authentication efficiency is low
Solution Approach 1:
The patent introduces a server as an intermediary to manage authentication. The server stores authentication information and communicates with both the mobile device and wireless charger, acting as a mediator that coordinates the authentication process between multiple parties, thereby improving both security and efficiency
Solution Approach 2:
The authentication process is segmented into multiple steps involving different components: the mobile device's communication circuit sends authentication requests to the server, the server processes and returns authentication information, and the wireless charger verifies this information. This segmentation allows each component to perform its specific function efficiently
2Device complexity
If the PRX is isolated from the CPU, then the wireless charging system is simpler, but the communication capability between PRX and device is lost
Solution Approach 1:
The mobile device acts as an intermediary between the PRX and the server. The communication circuit in the mobile device receives authentication requests from the wireless charger, forwards them to the server, and relays the authentication information back to the wireless charger, enabling indirect communication without direct PRX-CPU connection
Solution Approach 2:
The mobile device serves multiple functions: it acts as a communication interface for authentication, a power management device for wireless charging, and a coordinator between the PRX and external servers. This multi-functionality allows the system to maintain simplicity while achieving complex communication capabilities
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 secure authentication and controlled wireless charging by allowing PRX to communicate with the CPU, enhancing security and flexibility in charging modes, and enabling integration with various devices and systems.
Implementation Method 1
a wireless power receiver (PRX) that is coupled to the processing circuit and wirelessly connected to a wireless power transmitter (PTX) of a wireless charger, for receiving a wireless power
Data Source
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AI summary
The present invention provides a mobile apparatus with wireless charging function and an accessory apparatus with wireless charging function capable of allowing a wireless power receiver (PRX) to communicate with a CPU of a mobile device, so as to solve the problem mentioned above. The mobile apparatus comprises: a processing circuit and a wireless power receiver (PRX). The PRX is coupled to the processing circuit and wirelessly connected to a wireless power transmitter (PTX) of a wireless charger, for receiving a wireless power, wherein the PRX receives a first authentication request signal from the PTX and then sends a second authentication request signal to the processing circuit, and the processing circuit sends a second authentication information to the PRX, and the PRX sends a first authentication information to the PTX.