CCAP Bulk Encryption via IP Interfaces
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Solution Overview
Problem
Converged Cable Access Platform (CCAP) systems lack a mechanism for addressing video sources or components via Internet Protocol (IP) interfaces, preventing video processing engines from outputting video sources to EQAM devices or integrated CCAP devices without individually defined capabilities for IP-to-IP addressability.
Innovation Solution
A CCAP device configured with a bulk encryption function, comprising a persistent storage device, memory, and processor, capable of generating and outputting encrypted video streams via IP interfaces, enabling video distribution networks to operate as network encryption solutions by selecting between Single-Program Transport Stream and Multi-Program Transport Stream outputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If CCAP systems use traditional architecture without IP interface addressing mechanisms, then existing QAM-based transmissions and forwarding interfaces are maintained, but video processing engines cannot output video sources to EQAM devices without individually defined capabilities
Solution Approach 1:
The patent implements a universal IP addressing mechanism that enables all video processing engines and EQAM devices to communicate via standard IP interfaces. This eliminates the need for individually defined capabilities by providing a common, multi-functional addressing framework that works across all devices in the system.
Solution Approach 2:
The patent introduces an intermediary addressing layer that mediates between video processing engines and EQAM devices. This intermediary IP addressing mechanism translates and routes video sources without requiring direct individual capability definitions between each device pair, simplifying the overall system architecture.
2Ease of operation
If CCAP systems implement individual IP addressability capabilities in video processing engines, then video sources can be output to EQAM devices via IP interfaces, but device complexity increases
Solution Approach 1:
The patent makes video processing engines universally capable of IP-to-IP communication by implementing standard IP addressing and routing functions. This universal capability allows any video processing engine to output video sources to any EQAM device without requiring device-specific customization, thereby improving ease of operation without proportionally increasing complexity.
3Reliability
If CCAP systems lack bulk encryption functionality, then architecture remains simple, but network security and video distribution control are compromised
Solution Approach 1:
The patent merges bulk encryption functionality directly into the CCAP system architecture, combining security functions with the existing video distribution infrastructure. This integration provides robust video distribution security while avoiding the need for separate, complex external encryption systems.
Solution Approach 2:
The patent implements multi-functional CCAP devices that simultaneously handle video distribution, IP addressing, and bulk encryption. This universal approach provides comprehensive security across all video streams without requiring separate dedicated encryption hardware for each function, thereby improving reliability while controlling complexity.
Data Source
AI summary
A video distribution network includes a distribution plant and a first bulk encryption device connected to the distribution plant, wherein the bulk encryption device outputs a first encrypted video service stream to the distribution plant via an internet protocol (IP) interface.