Electronic Permission Slips for IPTV Access Control
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Solution Overview
Problem
Existing multimedia distribution systems, particularly cable-based networks, face challenges in controlling access to restricted content, such as preventing children from viewing objectionable programs, due to the need for hardware-intensive tuners for each channel and limitations in managing access across multiple channels simultaneously.
Innovation Solution
The implementation of an IPTV network with bidirectional communication allows administrators to control access to restricted multimedia programs through electronic permission slips, using SMS, audio messages, and graphical voting buttons, enabling remote permission granting or denial via devices like mobile telephones, and incorporating voice recognition for permission processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hardware-intensive tuners are used for each channel to control access to restricted content, then access control reliability is improved, but device complexity and cost increase
Solution Approach 1:
The patent uses electronic permission slips that are transmitted and stored as digital data copies rather than requiring physical hardware for each channel. The permission slip system creates a virtual copy of authorization that can be verified by the set-top box, replacing the need for multiple hardware tuners with a software-based verification system.
Solution Approach 2:
The patent replaces the mechanical hardware-intensive tuner system with an electronic/software-based permission slip system. Instead of using physical hardware components to control access to each channel, the system uses electronically transmitted permission data that can be verified and processed by the set-top box software, thereby reducing hardware complexity while maintaining access control functionality.
2Reliability
If administrators must be present at the set-top box to grant permission, then permission granting reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The patent introduces electronic permission slips as an intermediary mechanism that bridges the administrator and the set-top box. The permission slip is transmitted electronically to the set-top box, which then automatically processes and implements the administrator's authorization decision. This intermediary system allows administrators to grant permission remotely without needing to be physically present at the set-top box, while still ensuring reliable permission granting through automated verification.
Solution Approach 2:
The set-top box is configured to automatically process and implement permission slips without requiring administrator intervention. Once the administrator sends the permission slip electronically, the system self-services by automatically verifying the permission data and granting access to the requested channels, eliminating the need for the administrator to manually configure settings at the set-top box.
3Object-affected harmful factors
If automatic restriction settings are configured to prevent children from viewing objectionable programs, then content safety is improved, but adaptability to individual cases deteriorates
Solution Approach 1:
The patent implements a dynamic permission system where restriction settings can be flexibly adjusted on a per-program basis through electronic permission slips. Instead of static automatic restrictions, the system allows administrators to dynamically grant or deny permission for specific programs by sending targeted permission slips, enabling adaptability to individual cases while maintaining overall content safety through the persistent restriction framework.
Solution Approach 2:
The patent segments the automatic restriction system into two layers: a base layer of automatic restrictions that ensures content safety by default, and an overlay layer of individual permission slips that allow case-by-case exceptions. This segmentation enables the system to maintain broad content protection while providing flexible adaptability for specific situations where permission is granted through individual electronic slips.
Data Source
AI summary
An administrator controls viewer access to restricted multimedia programs using electronic permission slips. In response to a viewer's request to view a restricted multimedia program, the viewer may initiate the generation of an electronic permission slip that is sent to an electronic device associated with the administrator. The electronic permission slip may include text-based information, graphical information, audio information, and the like. The electronic permission slip may enable input of permission data regarding whether the viewer is allowed to receive the blocked program. In response to the administrator granting permission, a service provider network allows the viewer to access the restricted multimedia program.