Cable Set-Top Box Two-Way Communication Architecture
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Solution Overview
Problem
Conventional cable set-top box systems are one-way, limiting consumer interaction and restricting the deployment of value-added services, as they do not allow real-time communication between the cable network, cloud-based content, and consumer devices, and underutilize available spectrum.
Innovation Solution
A cable set-top box system with a DVB-C input, wireless data modem, and various interfaces for connectivity and data exchange, enabling two-way interactive communication and utilizing unused spectrum to provide on-demand services across multiple devices, including tablets and mobile devices, without additional capital investment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional one-way cable set-top box systems are used, then infrastructure complexity is reduced, but consumer interaction capability and value-added service deployment are limited
Solution Approach 1:
The set-top box is designed to perform multiple functions: traditional broadcast reception, internet connectivity via wireless modem, cloud communication, and support for multiple devices (TV, tablets, mobile devices). This multi-functionality enables consumer interaction and value-added services without requiring separate dedicated infrastructure for each function.
Solution Approach 2:
A computing cloud acts as an intermediary between the cable network and consumer devices. The cloud processes requests, manages content delivery, and coordinates communication between the set-top box, wireless network, and multiple display devices, thereby enabling interaction without direct complex peer-to-peer connections.
2Ease of operation
If real-time interactive services are enabled, then user experience is improved, but network communication complexity increases
Solution Approach 1:
The computing cloud serves as a mediator that handles the complexity of real-time communication protocols, session management, and coordinate between DVB-C broadcast network and internet-based services. This allows users to access interactive services without directly managing the underlying communication complexity.
Solution Approach 2:
Complex communication processing functions are extracted from the set-top box and relocated to the computing cloud. The set-top box focuses on signal reception and basic processing, while the cloud handles sophisticated real-time communication tasks, reducing local device complexity while enabling enhanced user experience.
3Adaptability or versatility
If unused spectrum is utilized for value-added services, then service diversity is increased, but signal interference risk increases
Solution Approach 1:
The computing cloud acts as an intermediary that manages spectrum allocation and signal coordination. It processes value-added service communications through the wireless modem while coordinating with the DVB-C signal, thereby enabling service diversity while managing interference risks through centralized control.
4Adaptability or versatility
If multiple devices are supported simultaneously, then adaptability is improved, but system resource requirements increase
Solution Approach 1:
The set-top box with integrated wireless modem provides universal access to multiple devices (TV, tablets, mobile devices) through a single unit. The computing cloud manages resource allocation dynamically, allowing multiple devices to share system resources efficiently without requiring dedicated resources for each device.
Data Source
AI summary
A cable set-top box and cable distribution system architecture for deployment of value-added services over digital video broadcasting-cable is disclosed. A consumer can request for an on-demand service or a data at the cable set-top box system 122, where the request may be executed by extracting data from storage means provided in the cable set-top box, and/or the request may be forwarded via a wireless data modem to a telecommunication network where the source of the request is identified and routed to a corresponding cable headend 106 for execution through the DVB-C and/or the modem, and/or the request may be forwarded by the modem via the telecommunication network to a computing cloud 130 where the source of the request is identified and routed to the corresponding cable headend 106 for execution through the DVB-C and/or the modem.