USB Power Line Communication for Ethernet-to-USB Network Access

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Solution Overview

Problem

Existing power line communication devices cannot send network signals to terminal devices using a USB interface, limiting their ability to provide network access.

Innovation Solution

A power line communication device with a USB interface, protocol conversion module, signal conversion module, coupler, and power line interface that converts Ethernet protocol signals to USB protocol signals for transmission to terminal devices via USB, enabling network access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a power line communication device uses traditional network cable or WiFi signal transmission, then network connectivity is achieved, but USB interface compatibility and versatility are limited

Engineering Contradiction:
Improveinterface compatibilityVSAvoidcommunication module complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The power line communication device is designed with a USB interface that can both transmit and receive data signals, enabling it to function as a multi-purpose communication device. The USB interface replaces the need for separate network cable connections, allowing the device to provide network access through a universal interface that works with various terminal devices.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent introduces a USB interface as an intermediary between the power line communication system and terminal devices. This intermediary component enables signal conversion and transmission through the USB protocol, bridging the gap between power line communication and standard USB-connected devices.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a USB interface is added to enable network signal transmission to terminal devices, then interface versatility is improved, but device structural complexity increases

Engineering Contradiction:
ImproveUSB interface capabilityVSAvoiddevice structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the USB interface functionality with the existing power line communication device structure. The USB interface is integrated into the device housing and circuit board, merging multiple functions (power supply, data transmission, signal conversion) into a single unified device rather than requiring separate components.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If protocol conversion from Ethernet to USB is implemented, then USB protocol compatibility is achieved, but signal conversion complexity increases

Engineering Contradiction:
Improveprotocol compatibilityVSAvoidsignal conversion module
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

A protocol conversion module serves as an intermediary between the Ethernet protocol layer and USB protocol layer. This module performs the necessary signal conversion and protocol translation, enabling communication between systems that use different protocols while maintaining a relatively simple implementation by handling only the essential conversion functions.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS10374642B2Power line communication method and device
Publication Date: 2019.08.06 HUAWEI TECH CO LTD
  • US10374642B2 patent drawing
  • US10374642B2 patent drawing
  • US10374642B2 patent drawing

AI summary

Embodiments of the present invention disclose a power line communications device, and the power line communications device includes a USB interface, a protocol conversion module, a signal conversion module, a coupler, and a power line interface. A first end of the USB interface is connected to a first end of the protocol conversion module, a second end of the protocol conversion module is connected to a first end of the signal conversion module, a second end of the signal conversion module is connected to a first end of the coupler, and a second end of the coupler is connected to a first end of the power line interface. During implementation of the embodiments of the present invention, the USB interface may be used to provide a network signal for a terminal device.