TV Internet Access Control via Management Server Token

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Solution Overview

Problem

Uncontrolled Internet access through TVs poses risks of exposure to inappropriate content, particularly for young viewers, and fails to meet quality screening expectations, while also not providing benefits to content providers or manufacturers.

Innovation Solution

A system where a consumer electronics device, such as a TV, communicates with a management server to receive a secure service list and user token, limiting access to only approved content servers, ensuring controlled and filtered Internet access through a walled garden approach, using SSL encryption for secure communication and token-based authentication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If uncontrolled Internet access is provided through TV, then ease of operation is improved, but content quality control deteriorates

Engineering Contradiction:
ImproveInternet access convenienceVSAvoidInappropriate content exposure
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a management server as an intermediary between the TV and Internet content servers. The TV is programmed to access only the management server, which then provides a controlled list of approved content servers. This intermediary structure maintains ease of operation for the TV while ensuring content quality control through pre-screening of available content sources.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system segments Internet access into two distinct layers: a controlled management layer (management server) and an approved content layer (content servers from the provided list). This segmentation allows the TV to operate with simple, unified access procedures while the management server enforces content quality standards by providing separate, pre-approved access paths to vetted content sources.

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If firewall or filtering program is installed on TV, then content control is improved, but device complexity increases

Engineering Contradiction:
ImproveContent filtering capabilityVSAvoidTV software complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent extracts the complex filtering and content control functionality from the TV itself and relocates it to a separate management server. The TV's role is simplified to merely accessing the management server and consuming content from the provided list, while all filtering, authentication, and content control operations are performed externally by the management server, thereby maintaining content control without increasing TV complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The management server acts as an intermediary that handles all complex filtering and content control operations externally. Instead of embedding firewall or filtering programs in the TV, the system uses the management server to provide pre-filtered content lists and handle authentication, thereby achieving content control without adding complexity to the TV's software architecture.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If local filter is installed on TV, then content control is improved, but reliability deteriorates

Engineering Contradiction:
ImproveContent filtering effectivenessVSAvoidFilter stability
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent extracts the filtering functionality from the TV's local environment and relocates it to a remote management server. This extraction ensures that filtering operations are performed in a stable, controlled environment independent of the TV's local software state, preventing users from unloading or defeating filters locally while maintaining consistent content control across all devices.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The management server serves as a reliable intermediary that maintains centralized control over content filtering. By moving filtering operations to this external, managed service, the system ensures that content control policies are consistently applied and cannot be easily circumvented or disabled by local user actions, thereby improving reliability compared to local filter implementations.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Object-affected harmful factors

If walled garden approach is implemented, then content quality control is improved, but adaptability deteriorates

Engineering Contradiction:
ImproveContent screening qualityVSAvoidInternet access flexibility
Core Design Contradiction:
Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The patent implements a dynamic walled garden approach where the management server can update and modify the list of approved content servers based on changing requirements, user preferences, or content availability. This dynamic update capability allows the system to maintain high content quality control through centralized management while adapting to new content sources and user needs over time, thereby balancing quality control with adaptability.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP2553566B1Authentication and authorization for internet video client
Publication Date: 2019.06.12 SONY GROUP CORP
  • EP2553566B1 patent drawingFigure 1
  • EP2553566B1 patent drawingFigure 2~3
  • EP2553566B1 patent drawingFigure 4~5

AI summary

A device (12/12A) is enabled to display Internet TV by accessing (40) a management server (32) with a secret unique ID and receiving back (42/48) from the server, assuming the ID is approved, a user token and a service list of content servers with knowledge of the user token. A user can select (52) a content server which causes the device to upload (54) its user token and in response receive (56) a content list from the content server, from which content can be selected (58) for display. Neither list may be modified by the device and the device can access only content on a content list.