QAM Tuning Capability for Server Resource Savings

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Solution Overview

Problem

Existing home entertainment systems limit media accessibility across multiple TVs, with TVs connected directly to a cable network unable to access high-definition media from a set-top box or DVR, and the RVU protocol does not optimize bandwidth and resource usage effectively.

Innovation Solution

The system leverages QAM tuning capabilities of legacy client devices to reduce server bandwidth and resource demand by instructing devices to tune to QAM channels for media delivery, with the server processing and forwarding media via IP when necessary, allowing for efficient content distribution across the network.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the server processes and forwards all media delivery through IP network, then media accessibility is improved across multiple TVs, but home network bandwidth usage increases and server resource consumption increases

Engineering Contradiction:
Improvemedia accessibilityVSAvoidbandwidth usage
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The patent enables client devices to perform self-service by utilizing their own legacy QAM tuning capabilities to directly receive media streams from the cable modem termination system. Instead of all media being funneled through the server, capable clients autonomously tune to appropriate QAM channels and receive media directly, thereby reducing the burden on server resources and home network bandwidth while maintaining media accessibility.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent segments the media delivery function by dividing it between the server and capable client devices. The server handles media delivery for clients that cannot perform QAM tuning, while capable clients independently handle their own media reception through direct QAM channel tuning. This segmentation allows the system to optimize bandwidth usage by routing media through the most efficient path for each client.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the server processes and forwards all media delivery through IP network, then media accessibility is improved across multiple TVs, but server resource consumption increases

Engineering Contradiction:
Improvemedia accessibilityVSAvoidserver resources
Core Design Contradiction:
Adaptability or versatilityVSPower

Solution Approach 1:

The patent enables client devices to perform self-service by utilizing their own legacy QAM tuning capabilities to directly receive media streams from the cable modem termination system. Instead of all media being funneled through the server, capable clients autonomously tune to appropriate QAM channels and receive media directly, thereby reducing the burden on server resources and home network bandwidth while maintaining media accessibility.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent extracts the QAM tuning function from the server and relocates it to capable client devices. By taking out this specific capability from the central server and enabling it at the client level, the system reduces server resource consumption while maintaining the ability to deliver media across multiple devices. The server no longer needs to perform QAM channel tuning and media re-encoding for capable clients.

Inventive Principle:
Principle #2Taking out (Extraction)

3Device complexity

If TVs connect directly to cable network without STB, then system complexity is reduced, but media accessibility is limited

Engineering Contradiction:
Improvesystem complexityVSAvoidmedia accessibility
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent makes TV sets universal by enabling them to perform multiple functions. TVs can operate in a simple mode connecting directly to the cable network for basic channel reception, or they can activate their legacy QAM tuning capabilities to function as independent media receivers capable of accessing any channel available on the cable network, effectively replacing the need for a separate STB in many cases.

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

Solution Approach 2:

The patent changes the operational parameters of TV sets by activating their dormant QAM tuning capabilities. Instead of operating in a limited state where they only receive basic cable signals, the TVs transition to a more capable state where they can independently tune to any QAM channel, access recorded content, and receive high-definition media directly, thereby improving media accessibility without adding system complexity.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS8938770B2Bandwidth and server resource savings through use of legacy client capability in a remote user interface system
Publication Date: 2015.01.20 VERIZON PATENT & LICENSING INC
  • US8938770B2 patent drawing
  • US8938770B2 patent drawing
  • US8938770B2 patent drawing

AI summary

A server receives a request for delivery of media from a client, and determines if the client has a capability to tune to a quadrature amplitude modulated (QAM) channel carried by a first network. The server sends a message to the client to instruct the client to tune to the QAM channel to receive the media via the first network if it is determined that the client has the capability to tune to the QAM channel. The server sends the media to the client if it is determined that the client does not have the capability to tune to the QAM channel.