Selective Feature Restriction for Portable Devices

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Solution Overview

Problem

The increasing portability and functionality of information handling systems, such as smartphones, pose challenges in academic and similar environments as they can be used for cheating and distractions, making it difficult to restrict their features effectively without interfering with essential functions.

Innovation Solution

A system and method that selectively restricts portable information handling system functions based on predetermined conditions like location and time, allowing teachers to disable features like texting, browsing, and picture-taking during tests while keeping emergency calls enabled, using a feature application that communicates restrictions via SMS or other secure means.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If smartphone features are completely disabled to prevent cheating, then academic integrity is improved, but essential communication functions are lost

Engineering Contradiction:
Improveacademic integrityVSAvoidcommunication capability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies different restriction levels to different smartphone features based on their potential for cheating versus communication utility. Essential features like emergency calling and text messaging are exempted from restrictions, while non-essential features like camera, browser, and file management are blocked. This local differentiation resolves the contradiction by maintaining academic integrity for cheating-prone features while preserving communication capability for essential features.

Inventive Principle:
Principle #3Local quality

2Reliability

If all smartphone functions are restricted during tests, then cheating is prevented, but user convenience deteriorates

Engineering Contradiction:
Improvetest securityVSAvoiddevice usability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent segments smartphone functions into three categories: blocked features (camera, browser, file manager), restricted features (messaging with exemptions), and allowed features (emergency calling). This segmentation allows the system to maintain test security by blocking cheating-prone features while preserving ease of operation for essential communication and emergency functions.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If smartphone features are unrestricted to maintain functionality, then device versatility is improved, but cheating opportunities increase

Engineering Contradiction:
Improvefeature availabilityVSAvoidcheating risk
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent implements dynamic feature restriction that activates automatically during test periods and deactivates afterward. The system dynamically adjusts which features are blocked based on the test status, maintaining full versatility during normal use while preventing cheating during tests. This dynamic approach resolves the contradiction by making feature availability conditional rather than static.

Inventive Principle:
Principle #15Dynamics

4Reliability

If comprehensive feature monitoring is implemented to detect cheating, then test security is improved, but system complexity increases

Engineering Contradiction:
Improvecheating detectionVSAvoidrestriction system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and blocks specific high-risk features (camera, browser, file manager) that are most commonly used for cheating, rather than implementing comprehensive monitoring of all smartphone functions. This extraction approach maintains test security by preventing access to cheating tools while avoiding the complexity of monitoring every feature, thus resolving the contradiction between security and simplicity.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS8548443B2System and method for selectively restricting portable information handling system features
Publication Date: 2013.10.01 DELL PROD LP
  • US8548443B2 patent drawing
  • US8548443B2 patent drawing
  • US8548443B2 patent drawing

AI summary

Wireless telephones retrieve feature restrictions from a wires telephone network, the feature restrictions having associated predetermined conditions. A wireless telephone applies the feature restrictions if the predetermined conditions are met to disable functions at the wireless telephone as defined by the feature restrictions. For example, a wireless telephone disables camera operations if the position of the wireless phone is in an academic testing location during an academic testing period.