MoCA Device Powering via Coax Cabling

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional methods for powering Multimedia over Coax Alliance (MoCA) devices are costly, cumbersome, and inefficient, often requiring dedicated power adapters and supply connections that complicate installation and increase costs.

Innovation Solution

MoCA devices are powered using the same coax cabling used for RF signaling, with circuitry to route power internally within the home network, eliminating the need for dedicated power adapters and supply connections, and incorporating power management blocks for adaptive power management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If dedicated power adapters and supply connections are used for MoCA devices, then reliable power supply is achieved, but device complexity and installation difficulty increase

Engineering Contradiction:
Improvepower supply reliabilityVSAvoidinstallation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines power delivery and RF signaling into a single coaxial cable infrastructure. The power management block integrates with the MoCA device to enable power transmission over the existing coax cable that already carries RF signals, eliminating the need for separate power adapters and supply connections while maintaining reliable power supply.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The coaxial cable infrastructure is made multi-functional by enabling it to carry both RF signaling and power delivery simultaneously. The power management block allows the same cable that delivers entertainment signals to also provide electrical power to MoCA devices, reducing installation complexity.

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

2Power

If dedicated power adapters are used for each MoCA device, then adequate power delivery is ensured, but cost and installation time increase

Engineering Contradiction:
Improvepower delivery capabilityVSAvoidinstallation time
Core Design Contradiction:
PowerVSLoss of time

Solution Approach 1:

Multiple functions (power delivery and signal transmission) are merged into a single cable system. The power management block enables the coax cable to simultaneously or separately deliver power and RF signals, eliminating the need for multiple power adapters and reducing installation time.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If separate power infrastructure is installed for MoCA devices, then power reliability is improved, but system complexity and cost increase

Engineering Contradiction:
Improvepower supply stabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The existing coaxial cable infrastructure is made universal to serve dual purposes: RF signal transmission and power delivery. The power management block enables this multi-functionality without requiring separate power infrastructure, thereby maintaining reliability while reducing system complexity.

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

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

This approach simplifies installation, reduces costs, and improves performance by enabling power to be supplied over coax cabling, allowing for flexible placement of MoCA devices without the need for additional power infrastructure.

Implementation Method 1

MoCA devices are powered using the same coax cabling used for RF signaling

Methodology Applied
Scientific EffectElectrical power transmission over coaxial cable: Conduction (electrical)

Data Source

PatentUS10177815B2Powering multimedia over coax alliance (MoCA) devices and cable modems
Publication Date: 2019.01.08 MAXLINEAR INC
  • US10177815B2 patent drawing
  • US10177815B2 patent drawing
  • US10177815B2 patent drawing

AI summary

Systems and methods are provided for powering Multimedia over Coax Alliance (MoCA) devices. An electronic device that is configured for use in a multimedia over coax alliance (MoCA) network may include a communication circuit operable to communicate multimedia over coax alliance (MoCA) based signals over coax cabling in the MoCA network, and one or more power circuits operable to support supplying and/or drawing power over the coax cabling in the MoCA network, to enable powering the electronic device and/or one or more other electronic devices in the MoCA network. The power circuits may include one or more of: a power regulator circuit that draws power from the coax cabling and/or regulates use of the power, a power source circuit that supplies power into the coax cabling, and a power management circuit that manages power related operations in the electronic device and/or in the MoCA network.