Messaging Engine for Set-Top Box Priority Message Delivery
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Solution Overview
Problem
Current digital television (DTV) systems face limitations in messaging bandwidth and compatibility across different Conditional Access (CA) systems, leading to delayed or unsupported message transmission, particularly for business-critical and priority messages.
Innovation Solution
A system and method for direct operator to set-top box communication that utilizes a messaging engine within the TV operator's infrastructure, including a CAS, multiplexor, and modified STBs, to encode and transmit structured messages, enabling efficient and prioritized message delivery by comparing address information with unique STB IDs for targeted message display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If traditional broadcast signaling methods are used for message transmission, then message delivery is supported, but message delivery speed is delayed and bandwidth is insufficient for business-critical messages
Solution Approach 1:
The patent segments the message transmission process by creating a dedicated messaging engine that operates independently from the traditional broadcast signaling path. This allows business-critical messages to be transmitted through a separate, optimized channel that does not contend for bandwidth with entertainment content, thereby improving delivery speed and reducing delays.
Solution Approach 2:
The patent introduces a messaging engine as an intermediary component within the conditional access system that specifically handles business-critical messages. This intermediary processes and prioritizes these messages separately from general broadcast traffic, ensuring faster and more reliable delivery without being constrained by the bandwidth limitations of traditional broadcast signaling.
2Adaptability or versatility
If traditional broadcast signaling is used, then message transmission is supported, but compatibility across different CA systems is limited
Solution Approach 1:
The messaging engine is designed with universal functionality to handle multiple types of conditional access systems (DVB-CI, Enigma, Nagravision, etc.). By implementing a unified messaging framework that can operate across different CA systems, the patent improves both compatibility and reliability, allowing business-critical messages to be transmitted reliably regardless of the specific CA system being used.
3Productivity
If bandwidth is allocated for entertainment content, then content delivery is maintained, but messaging bandwidth is constrained leading to delayed message transmission
Solution Approach 1:
The patent segments the available bandwidth by reserving a dedicated portion specifically for business-critical message transmission through the messaging engine. This segmentation ensures that message traffic does not compete with entertainment content for bandwidth resources, thereby improving transmission efficiency and ensuring reliable delivery even when entertainment content consumes the majority of available bandwidth.
Data Source
AI summary
A system and method implements communications between a TV operator's infrastructure and set-top boxes (STBs) through a TV operator's infrastructure, wherein the infrastructure includes at least one Conditional Access System (CAS), a messaging engine and a Set Top Box (STB), the STB including a unique identification value. The method comprises receiving a structured message in the messaging engine; computing a stream out of multiple received structured messages by the messaging engine and sending to the multiplexor; including the stream of structured messages in a broadcasted signal transmitted through the TV operator's infrastructure; receiving the broadcasted signal by the STB and extracting a structured message; and comparing addressing information in the extracted structured message with a unique identification of the STB. Messages directed to the STB can be displayed.