Intelligent Power-Enabled Communications Port Dynamic Negotiation

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Solution Overview

Problem

Existing power-enabled communications standards, such as USB and FireWire, face challenges in efficiently delivering power to devices with varying power requirements, leading to the need for continuous upgrades as devices demand more power, and lack flexibility in managing power distribution across multiple connected devices.

Innovation Solution

Implementing a variable power supply system within power-enabled communications ports that uses power line communications to negotiate power delivery with connected devices, ensuring that each device receives the appropriate amount of power while preventing overload or damage, and allowing for backward compatibility with existing standards.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If power delivery is increased to meet growing device power demands, then device functionality is improved, but risk of overload and damage increases

Engineering Contradiction:
Improvepower deliveryVSAvoidoverload and damage risk
Core Design Contradiction:
PowerVSObject-affected harmful factors

Solution Approach 1:

The patent implements dynamic power adjustment where the power supply continuously adapts to device requirements through negotiation protocols. The system transitions from static power delivery to dynamic control, adjusting power levels in real-time based on device feedback and connection status, thereby preventing overload while meeting power demands.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent employs feedback mechanisms where connected devices communicate their power requirements back to the power supply. The system monitors device responses and adjusts power delivery accordingly, creating a closed-loop control system that prevents harmful overload conditions while ensuring adequate power supply.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If power negotiation protocols are implemented, then power management flexibility is improved, but system complexity increases

Engineering Contradiction:
Improvepower management flexibilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements universal power negotiation protocols that can accommodate multiple device types and power requirements through a single standardized interface. The system is designed to work with various devices (USB, FireWire, and other power-enabled connections) using the same negotiation framework, reducing the need for device-specific complexity while maintaining flexibility.

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

3Power

If existing power standards are continuously upgraded, then power delivery capability is improved, but compatibility with legacy devices is worsened

Engineering Contradiction:
Improvepower delivery capabilityVSAvoidbackward compatibility
Core Design Contradiction:
PowerVSAdaptability or versatility

Solution Approach 1:

The patent enables dynamic adaptation to different power standards and negotiation protocols. The power supply can adjust its behavior based on the connected device's capabilities, seamlessly supporting both legacy devices with lower power requirements and modern devices requiring higher power, without needing continuous standard upgrades.

Inventive Principle:
Principle #15Dynamics

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 solution enables efficient and flexible power management across devices, preventing damage and allowing for the use of power-enabled ports in premises wiring, eliminating the need for bulky AC-DC adapters and enabling data connectivity while maintaining compatibility with existing standards.

Implementation Method 1

a variable power supply may be provided for the power conductor of a port operating according to such a standard

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 2

the port controller may impress a communications signal upon the power transmission on the power conductors, of a nature similar to that used for power line communications

Methodology Applied
Scientific EffectPower line communication:

Data Source

PatentUS8344874B2Intelligent power-enabled communications port
Publication Date: 2013.01.01 APPLE INC
  • US8344874B2 patent drawing
  • US8344874B2 patent drawing
  • US8344874B2 patent drawing

AI summary

A port that supplies power in accordance with a standard is equipped with a variable power supply and a power line communications module. Power line signals on the power conductors are used to allow a port controller to negotiate power requirements with peripheral devices and the power supply is adjusted accordingly. If the peripheral device does not support such negotiation, power is delivered in accordance with the standard. The port may be a data communications port that supplies power and data in accordance with a standard.