Content Stream Encryption for Satellite Resource Allocation

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Solution Overview

Problem

Satellite television systems face inefficiencies in resource allocation due to broadcasting less popular content, which can be costly and wasteful, as they require valuable satellite resources during peak viewing times, and existing methods do not effectively manage content delivery based on popularity or demand.

Innovation Solution

A content processing and delivery system that manages content files using conditional access information, storing them in a repository and encrypting them based on relative time of arrival, allowing for sequential encryption and delivery through both satellite and broadband channels, optimizing resource allocation based on popularity ratings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If satellite resources are used to broadcast less popular content, then user access to diverse content is improved, but resource allocation efficiency deteriorates

Engineering Contradiction:

Improvecontent delivery flexibilityVSAvoidresource allocation efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The system dynamically selects delivery channels (satellite vs. broadband) based on content popularity metrics and current resource availability. Popular content is automatically routed through satellite broadcast while less popular content is delivered via broadband, allowing the system to adapt resource allocation in real-time based on demand patterns

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The content delivery system is segmented into two distinct pathways: satellite broadcast channel for high-demand content and broadband delivery channel for low-demand content. This segmentation allows each channel to operate at optimal efficiency for its designated content type, preventing resource waste while maintaining comprehensive content access

Inventive Principle:

Principle #1Segmentation

2Reliability

If satellite resources are used during peak viewing times, then content availability is improved, but resource cost increases

Engineering Contradiction:

Improvecontent availabilityVSAvoidsatellite resource cost

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The system changes the delivery parameter (channel selection) based on content popularity parameters. By monitoring and responding to popularity metrics, the system automatically adjusts which channel is used for each content item, ensuring satellite resources are reserved for high-priority content while lower-priority content uses more cost-effective broadband delivery

Inventive Principle:

Principle #35Parameter changes

3Productivity

If content is broadcast by satellite at less popular viewing times, then resource utilization is improved, but content freshness deteriorates

Engineering Contradiction:

Improveresource utilizationVSAvoidcontent delivery delay

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

Content is pre-loaded into the system and made available for immediate delivery through either satellite or broadband channels. This preliminary preparation eliminates delays associated with on-demand satellite broadcasting, allowing the system to respond instantly to user requests regardless of current viewing time popularity

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS9060096B2Method and system for forming a content stream with conditional access information and a content file

Publication Date: 2015.06.16 DIRECTV LLC

AI summary

A communication system includes a content repository 274 storing a content file and a video transport processing system 273 in communication with the content repository 274. The video transport processing system 273 receives a plurality of conditional access information, stores a relative time of arrival of each of the plurality of conditional access information and encrypts the content file using the plurality of conditional access information and the relative time of arrival to form an encrypted content file.