Fiber-to-the-seat IFE Distribution Using Passive Fiber Optics
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Solution Overview
Problem
In-flight entertainment systems face challenges due to high operational costs, weight, and power consumption, largely because of the number of distinct hardware components and proprietary architectures, which are not efficiently scalable or modular, unlike terrestrial VOD systems.
Innovation Solution
A fiber-to-the-seat distribution system using a fiber-optic junction box and server-switch line replacement units connected via fiber-optic network cables, with a method of marshalling information from servers to video display units through trunk line and seat group disconnect assemblies, allowing for modular and scalable architecture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If proprietary hardware and software architectures are used in IFE systems, then system functionality and capabilities can be provided, but the number of distinct hardware components increases and development costs must be amortized over a small number of installations
Solution Approach 1:
The patent applies universality by using commercial off-the-shelf (COTS) hardware components that can serve multiple functions in the IFE system. Instead of proprietary single-purpose components, standard Ethernet switches, servers, and network equipment are used to provide video distribution, data communication, and system control functions, thereby reducing the number of distinct hardware components while maintaining system functionality.
Solution Approach 2:
The patent merges multiple distinct hardware components into integrated network-based solutions. By combining video distribution, data communication, and system control into a unified Ethernet network infrastructure using COTS equipment, the system reduces component count and complexity while achieving the same functional capabilities through consolidated hardware platforms.
2Device complexity
If the number of distinct hardware components is reduced, then operational costs and weight decrease, but system scalability and adaptability may be limited
Solution Approach 1:
The COTS hardware components used in the patent are inherently universal and scalable platforms that can adapt to different system sizes and configurations. Standard Ethernet switches and servers can be scaled from small aircraft to large fleets, and the same hardware can support various IFE functionalities including video on demand, broadcast television, and data services, thereby maintaining scalability while reducing component complexity.
Solution Approach 2:
The patent employs dynamic, reconfigurable network infrastructure using standard Ethernet technology that can be easily scaled and reconfigured. The system uses software-based configuration and management that allows the hardware to adapt to different operational requirements, enabling scalability without requiring additional specialized hardware components.
3Adaptability or versatility
If more hardware components are used, then system capabilities can be enhanced, but weight and power consumption increase operational costs
Solution Approach 1:
The patent replaces traditional mechanical video distribution systems with optical fiber-based Ethernet networks. By substituting heavy copper video cables and dedicated video processing hardware with lightweight fiber optic cables and standard network equipment, the system achieves enhanced capabilities while significantly reducing weight and power consumption associated with legacy IFE hardware.
4Adaptability or versatility
If proprietary architectures are used, then IFE system requirements can be met, but installation costs and maintenance costs increase due to more distinct LRUs
Solution Approach 1:
The patent employs commercially available, readily replaceable COTS hardware components that can be easily procured, installed, and maintained. These standard components have widespread availability and established support ecosystems, making them more cost-effective for installation and maintenance compared to proprietary IFE-specific hardware, even though they may have shorter product lifecycles that require periodic replacement.
Solution Approach 2:
By using universal COTS hardware platforms that can fulfill multiple IFE system requirements, the patent reduces the total number of distinct line replaceable units (LRUs) needed. This consolidation simplifies installation procedures and maintenance operations, as technicians work with standard equipment rather than specialized proprietary components, thereby reducing training requirements and operational costs.
Data Source
AI summary
A modular, scalable, extensible, In-Flight Entertainment (IFE) data communication system is described. In one embodiment, the system comprises a hub providing connection between one or more server/switch line replaceable unit including at least one server and a plurality of passenger video display units. A server, such as, for example, an audio server, a video server, an audio/video server, a game server, an application server, a file server, etc., provides data (e.g., entertainment programming, internet file data, etc.) to the video display unit. In one embodiment, the connection between the plurality of server/switch line replacement units, the hub and the plurality of video display units is provided by passive fiber optic links.