Anti-theft Apparatus with Distance Control for Mobile Devices

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Solution Overview

Problem

Existing anti-theft apparatuses for mobile devices are bulky, obstructive, and costly, hindering customer observation and testing, and are not adaptable to various device sizes, leading to increased costs for shops and potential damage to access terminals due to overload.

Innovation Solution

A compact anti-theft apparatus with a distance control unit and idle-rotation inducing means, featuring a base attached to the mobile device, a connecting terminal, separation sensor, and adjustable distance control pin unit, which minimizes obstruction and prevents overload damage, allowing use with different device sizes and reducing manufacturing costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a locking apparatus with a grip is used to physically lock the mobile terminal, then theft prevention is improved, but the volume and weight of the apparatus become considerable, hindering customer observation and testing

Engineering Contradiction:
Improvetheft preventionVSAvoidvolume of grip
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The patent extracts the essential anti-theft function (detecting separation and triggering alarm) from the bulky physical grip structure. The connecting terminal and separation sensor are separated from the large grip housing, allowing the core functionality to be achieved with minimal structural components that do not obstruct customer view or handling.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical locking grip system with an electrical/electronic detection system. Instead of using a large mechanical grip to physically restrain the device, the invention uses a separation sensor to detect when the device is removed from the base and triggers an alarm, eliminating the need for bulky mechanical restraint structures.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If a locking apparatus with a grip is used to physically lock the mobile terminal, then theft prevention is improved, but the manufacturing cost becomes high, burdening shops

Engineering Contradiction:
Improvetheft preventionVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent employs inexpensive components such as a simple separation sensor, connecting terminal, and alarm unit that can be mass-produced at low cost. These components replace expensive mechanical locking mechanisms, making the anti-theft system economically viable for widespread deployment in retail environments.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The base unit with connecting terminal and separation sensor serves multiple functions: it provides structural support, electrical connection for power/data, theft detection capability, and alarm triggering. This multi-functionality reduces the need for separate components, thereby lowering overall manufacturing cost while maintaining effective theft prevention.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If a distance control unit is used to accommodate various mobile device sizes, then adaptability is improved, but the device complexity increases

Engineering Contradiction:
Improveadaptability to different device sizesVSAvoidcomplexity of distance control unit
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The distance control pin unit provides adjustable positioning capability that adapts to different mobile device thicknesses. The pin can be moved to different positions along the base to accommodate varying device sizes, providing dynamic adaptability without requiring complex electronic control systems or multiple fixed configurations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The distance control mechanism is segmented into discrete adjustable positions using the pin unit, allowing simple reconfiguration for different device sizes. This segmentation approach provides adaptability through discrete position adjustments rather than continuous complex control, maintaining simplicity while achieving versatility.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3118825B1Anti-theft apparatus for mobile device
Publication Date: 2018.04.18 KUM OH ELECTRONICS
  • EP3118825B1 patent drawingFigure 1A
  • EP3118825B1 patent drawingFigure 1B
  • EP3118825B1 patent drawingFigure 2A

AI summary

Disclosed is an anti-theft apparatus for a mobile device that does not disturb a customer when he or she observes and tests a mobile device in a shop and which can be efficiently used with various types of mobile devices. The anti-theft apparatus for a mobile device includes: a base attached to a back surface of a mobile device; a connecting terminal provided in a rear side of the base and connected to an access port of the mobile device; a separation sensor sensing separation of the mobile device from the base; and a distance control unit controlling the distance between the base and the connecting terminal.