Integrated Data Reader with Air Core EAS Deactivation Coil

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Solution Overview

Problem

Existing data reading systems, such as barcode scanners, do not effectively integrate electronic article surveillance (EAS) tag deactivation processes, leading to inefficiencies in retail checkout and inventory control environments where space is limited and simultaneous barcode scanning and EAS deactivation are desired.

Innovation Solution

Integration of EAS deactivation modules within the data reader, specifically air core magnetic coil units positioned behind the scanner surface to generate a deactivation field aligned with the scan field, allowing for simultaneous barcode scanning and EAS tag deactivation without interfering with the scanner's operation or counter space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate EAS deactivation systems are used alongside barcode scanners, then EAS tag deactivation can be achieved, but counter space is consumed and checkout efficiency is reduced

Engineering Contradiction:

ImproveEAS tag deactivation capabilityVSAvoidcounter space

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The patent combines the EAS deactivation system and barcode scanner into a single integrated unit. The deactivation coil is positioned within the scanner housing, and both functions share the same scan field, eliminating the need for separate deactivation equipment and reducing counter space requirements.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated system performs multiple functions simultaneously - barcode scanning and EAS tag deactivation - through a single device. The scan field serves dual purposes: reading barcode data and deactivating EAS tags, making the system more versatile and space-efficient.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If EAS deactivation coil is positioned around the scan window, then deactivation field is generated, but barcode scanning accuracy may be interfered with

Engineering Contradiction:

ImproveEAS tag deactivation effectivenessVSAvoidbarcode scanning accuracy

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The deactivation coil is strategically positioned and oriented to concentrate the deactivation field in specific regions where EAS tags are located, while minimizing interference with the barcode scan field. The coil can be positioned above, below, or to the sides of the scan window, creating localized deactivation zones that preserve scanning accuracy.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The deactivation coil is nested within the scanner housing structure, with the coil windings arranged to fit within the available space without obstructing the scan field. The coil may be positioned in recesses or mounted on internal surfaces, allowing both functions to coexist within the same spatial envelope.

Inventive Principle:

Principle #7Nested doll (Nesting)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Facilitates efficient and space-saving deactivation of EAS tags during the scanning process, enhancing checkout efficiency by eliminating the need for separate deactivation systems and maintaining the accuracy of barcode scanning.

Implementation Method 1

air core magnetic coil units positioned behind the scanner surface to generate a deactivation field

Methodology Applied

Scientific EffectMagnetic field generation: Electromagnetic Induction

Data Source

PatentUS7619527B2Integrated data reader and electronic article surveillance (EAS) system

Publication Date: 2009.11.17 SENSORMATIC ELECTRONICS CORP

AI summary

An integrated data reader and electronic article surveillance (EAS) system, and methods of operation. Several configurations are also disclosed for alternate deactivation coil designs and mounting schemes.