Video Transmission Over Multiple Media
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Solution Overview
Problem
Legacy networks face limitations in providing bandwidth for advanced telecommunication services like digital telephone and broadband/video services, with upgrades like ISDN and DSL being costly and dependent on subscriber proximity and wiring quality, and existing solutions like vDSL failing to meet the bandwidth demands for high-definition video.
Innovation Solution
A system that logically couples multiple physical media to provide a consolidated bandwidth for video transmission, using devices at both the service provider's head end and subscriber's location to segment and reassemble video signals into logical blocks for transmission over existing communication lines, enabling higher bandwidth utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If legacy networks use traditional copper wire infrastructure, then deployment cost is low and ease of installation is high, but bandwidth capacity is insufficient to support modern video services
Solution Approach 1:
The video signal is divided into multiple data streams that can be transmitted simultaneously over separate physical media (DSL line and cable line). Each medium carries a portion of the video data, allowing the system to achieve high bandwidth capacity while utilizing existing low-cost copper wire infrastructure.
Solution Approach 2:
The patent combines multiple physical media (DSL and cable lines) into a single unified transmission path for video services. By merging these media at the network interface device, the system achieves aggregated bandwidth capacity while maintaining deployment simplicity through use of existing infrastructure.
2Productivity
If providers upgrade to optical fiber media, then bandwidth capacity is sufficient for high-definition video, but deployment cost becomes prohibitively expensive
Solution Approach 1:
The network interface device is designed to handle multiple types of physical media (DSL, cable, and potentially fiber) through a single unified architecture. This multi-functionality allows the system to achieve high bandwidth capacity without mandating expensive optical fiber deployment, as it can operate over existing copper infrastructure when available.
Solution Approach 2:
Instead of fully upgrading to optical fiber throughout the entire network, the system uses partial upgrades by leveraging existing copper wire infrastructure where sufficient bandwidth is available through multi-media aggregation. This approach achieves adequate bandwidth capacity without the full cost burden of complete fiber deployment.
3Productivity
If providers use ISDN or DSL technologies, then bandwidth is improved compared to traditional lines, but service reliability is limited by subscriber proximity and wiring quality
Solution Approach 1:
The system assigns different physical media to different locations based on their individual characteristics and capabilities. Cable lines with higher bandwidth capacity are used where available and reliable, while DSL lines are used in other locations. This local optimization reduces dependency on any single medium's limitations regarding proximity and wiring quality.
Solution Approach 2:
The patent creates a composite transmission system that combines multiple physical media (DSL and cable) into a unified video transmission path. This composite approach leverages the strengths of each medium and compensates for their individual weaknesses, reducing overall dependency on subscriber proximity and wiring quality while maintaining high bandwidth capacity.
4Productivity
If vDSL is used to provide sufficient downstream bandwidth, then video services become feasible, but the solution is infeasible due to subscriber proximity constraints
Solution Approach 1:
The video transmission is segmented into multiple data streams that can be distributed over different media. By using both DSL and cable lines simultaneously, the system achieves the necessary downstream bandwidth without relying solely on vDSL, thereby reducing the constraint on subscriber proximity to the central office.
Solution Approach 2:
The system adds a dimensional approach by utilizing multiple physical media simultaneously rather than relying on a single medium. This multi-dimensional transmission strategy increases overall bandwidth capacity while reducing dependency on the specific limitations of vDSL regarding subscriber proximity.
Data Source
AI summary
Various embodiments of the invention provide novel apparatus, methods and systems for providing relatively high-speed bandwidth to enable, inter alia, video transmission services over media previously unable to support such services. In accordance with certain embodiments, a device located at the telecommunication service provider can logically couple two or more physical media to provide a single, consolidated source of bandwidth, which can be used to transmit data, which can represent a video signal. In accordance with other embodiments, a device located at the subscriber's location can be used to receive the data from each of the two physical media and recreate the video signal from the data, such that the video signal can be transmitted to a display device, such as a television, monitor, etc.