Service Loop Cable Management for Head-Mounted Displays

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Solution Overview

Problem

Virtual-reality head-mounted displays face challenges in managing cables, particularly in accommodating different user head sizes and in transporting and storing these systems efficiently.

Innovation Solution

A wearable technology system featuring a head-mounted display connected to a device via a strap with a service loop and circuitry, which includes a flexible connector and adjustable service loop to manage cable length and reduce mechanical interference, allowing for easy adjustment and secure storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If cables are used to convey data between HMD and computer, then data communication is achieved, but cable management becomes difficult especially for accommodating different user head sizes

Engineering Contradiction:

Improveaccommodation of different user head sizesVSAvoidcable management

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The cable is segmented into multiple sections with varying flexibility characteristics. The service loop portion is made highly flexible to accommodate different head sizes and allow adjustment, while other portions maintain appropriate rigidity for stable data transmission. This segmentation allows the cable to adapt to different users without requiring complete redesign.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The service loop is designed as a dynamic, adjustable component that can change its configuration based on user needs. The loop can be expanded or contracted, and its position can be adjusted along the cable length to accommodate different head sizes and user preferences, making the system adaptable rather than fixed.

Inventive Principle:

Principle #15Dynamics

2Reliability

If cables are included in the headset for data communication, then high volume data transmission is achieved, but the system becomes difficult to transport and store

Engineering Contradiction:

Improvedata communicationVSAvoidtransport and storage bulk

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The service loop is designed to nest within itself or against other components of the headset when not in use. The flexible loop portion can be folded back and stored within the headset structure or alongside the cable routing, significantly reducing the overall volume required for transport and storage while maintaining full functionality during use.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The service loop utilizes flexible cable construction that can be bent, folded, and compressed into compact forms. This flexibility allows the cable to be stored in a thin, compact configuration during transport while maintaining its ability to extend and function properly during use.

Inventive Principle:

Principle #30Flexible shells and thin films

Data Source

PatentUS10571691B1Service loop for a head-mounted display

Publication Date: 2020.02.25 META PLATFORMS TECHNOLOGIES LLC

AI summary

A system includes a head-mounted display, a device including at least one of a computer and a battery, and a strap. The strap includes a first end connected to the head-mounted display, a second end connected to the device, a service loop, and circuitry extending from the first end through the service loop to the second end to electrically couple the head-mounted display with the device.