EAS Bezel Coil Integration for Barcode Readers
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Solution Overview
Problem
Existing bar code symbol reading systems lack efficient and cost-effective methods to integrate electronic article surveillance (EAS) capabilities, requiring labor-intensive and component-heavy processes for enabling EAS functions.
Innovation Solution
The integration of EAS coil and cable interface circuitry within a faceplate bezel structure for hand-supportable and countertop-supportable bar code symbol reading systems, allowing for easy installation and upgrade of EAS functionality without redesigning the system, using a prequalified EAS cable assembly with embedded antenna coils.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If EAS capabilities are integrated into bar code symbol reading systems using traditional methods, then EAS functionality is achieved, but the integration process becomes labor-intensive and component-heavy
Solution Approach 1:
The patent merges the EAS coil assembly with the faceplate bezel structure into a single integrated unit. The coil assembly includes the EAS coil, cable interface circuitry, and mounting features that are pre-assembled and then attached to the faceplate bezel, reducing the number of separate components and assembly steps required for integrating EAS functionality into the bar code reading system.
Solution Approach 2:
The patent segments the EAS system into a modular coil assembly that can be independently manufactured and tested before integration. This modular approach allows the EAS coil assembly to be produced as a separate unit with pre-attached cable interface circuitry, enabling easier integration into existing bar code reading systems without redesigning the entire system.
2Reliability
If multiple separate components are used for EAS coil and cable interface circuitry, then EAS functionality is achieved, but the number of assembly steps and parts increases
Solution Approach 1:
The patent combines the EAS coil and cable interface circuitry into a single pre-assembled coil assembly unit. The cable interface circuitry is mounted on the rear surface of the faceplate bezel and electrically connected to the EAS coil, eliminating the need for separate assembly of these components during system integration and improving assembly efficiency.
3Adaptability or versatility
If existing bar code symbol reading systems are upgraded with EAS capabilities, then EAS functionality is added, but system redesign is required
Solution Approach 1:
The patent creates a self-contained EAS coil assembly that functions as an independent module. This modular design allows the assembly to be attached to existing bar code symbol reading systems without requiring redesign of the main system architecture. The coil assembly includes all necessary components (EAS coil, cable interface circuitry, mounting features) that can be integrated into various bar code reader models through simple attachment to the faceplate bezel.
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
This solution reduces the number of assembly steps and parts required, simplifies the integration of EAS subsystems, and enables quick and easy upgrades to existing systems, enhancing EAS tag deactivation capabilities while minimizing inventory and assembly complexity.
Implementation Method 1
a first coil of electrically conductive wire embedded along the rear surface of the faceplate bezel about the rectangular shaped aperture, and having terminals connected to an electrical interface circuit; wherein the first coil generates a first electromagnetic field in the vicinity of the optically transparent faceplate, for deactivating an EAS tag on a purchased product
Data Source
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AI summary
A method of and apparatus for incorporating primary components of an EAS system into hand-supportable and countertop-supportable bar code symbol reading systems having a housing with a light transmission window covered by an optically transparent faceplate having outer dimensions closely matched to the light transmission window. About the optically transparent faceplate, a faceplate bezel is mounted embodying a coil of electrically conductive wire having terminals connected to an electrical interface circuit, which is connected to a flexible EAS cable extending from the electrical interface circuit. The flexible EAS cable extends towards electrical drive circuitry associated with the EAS subsystem, for powering the coil during EAS tag deactivation operations controlled by the host computer system.