Extendable Faraday Cage for I/O Connectors

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Solution Overview

Problem

Traditional input/output (I/O) ports on computing devices are fixed within a Faraday cage, making them inconvenient to access and susceptible to dust and debris, while also failing to maintain electrical isolation when moved, as they break the electrical barrier.

Innovation Solution

An apparatus featuring a Faraday cage around a flexible cable that translates and bends with I/O ports, using gaskets and a conductive sock to maintain electrical connectivity and isolation, allowing the ports to be moved while preventing noise interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If I/O ports are fixed within a Faraday cage, then electrical isolation is maintained, but accessibility and ease of use deteriorate

Engineering Contradiction:
Improveelectrical isolationVSAvoidaccessibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent implements a movable I/O port housing that can slide between a retracted position (within the Faraday cage) and an extended position (outside the cage). This dynamic mechanism allows the system to switch between maintaining electrical isolation and providing accessibility, resolving the contradiction between these two requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The I/O port system is divided into separate components: the stationary Faraday cage, the movable housing containing the ports, and the flexible cable. This segmentation allows the housing to move independently to provide accessibility while the Faraday cage remains stationary to maintain electrical isolation.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If I/O ports are moved outside the computer case, then accessibility improves, but electrical isolation and noise protection deteriorate

Engineering Contradiction:
ImproveaccessibilityVSAvoidelectrical isolation
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The movable housing allows I/O ports to be extended outside the case only when needed for accessibility. When retracted, the ports remain within the Faraday cage to maintain electrical isolation. This dynamic positioning resolves the contradiction between accessibility and electrical isolation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The flexible cable acts as an intermediary, connecting the movable housing to the internal systems while allowing the housing to move in and out. This enables the housing to extend for accessibility without permanently breaking the Faraday cage barrier.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If I/O ports are recessed within the case, then electrical isolation is maintained, but ease of access deteriorates

Engineering Contradiction:
Improveelectrical isolationVSAvoidease of access
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

Instead of fixed recessed ports, the patent implements a movable housing that can slide to extend the ports outside the case. This dynamic mechanism maintains electrical isolation when retracted while providing ease of access when extended, resolving the contradiction between these two requirements.

Inventive Principle:
Principle #15Dynamics

4Ease of operation

If a movable I/O port housing is implemented, then accessibility improves, but device complexity and difficulty of manufacture increase

Engineering Contradiction:
ImproveaccessibilityVSAvoidmechanical complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent implements a sliding mechanism with guides and stops that provides complex functionality (movable housing) through relatively simple mechanical means. This approach improves accessibility while minimizing the increase in device complexity compared to more sophisticated mechanisms.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The use of a flexible cable allows the movable housing to move without requiring complex rigid mechanical linkages. The flexibility of the cable simplifies the overall mechanism while still enabling the housing to extend and retract, reducing device complexity.

Inventive Principle:
Principle #30Flexible shells and thin films

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 easy access to I/O ports while maintaining electrical isolation, protecting against external and internal noise interference, even when the ports are in a non-stationary position.

Implementation Method 1

I/O connectors with extendable faraday cage... a Faraday cage generally about a flex cable

Methodology Applied
Scientific EffectFaraday cage: Faraday Cage

Implementation Method 2

The gaskets may electrically connect to a conductive sock that surrounds the flex cable and thus, in turn, electrically connect to the ground plane(s) of the flex cable

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS8067701B2I/O connectors with extendable faraday cage
Publication Date: 2011.11.29 APPLE INC
  • US8067701B2 patent drawing
  • US8067701B2 patent drawing
  • US8067701B2 patent drawing

AI summary

An apparatus providing one or more I/O connections to a computer. The apparatus includes a Faraday cage generally about a flex cable, or other computing element, that may translate when the I/O ports to the computer are utilized. The embodiment maintains the Faraday cage for the flex cable or element as the I/O port housing opens or closes.