Barcode Reader Trigger Feedback via Electromagnetic Resistance

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Solution Overview

Problem

Existing barcode scanners often rely on visual and audible feedback, which may not be sufficient in noisy environments or at long distances, and current vibration actuators are expensive and fragile, reducing the operational life of the scanner.

Innovation Solution

A barcode reader with a feedback device that provides tactile feedback through a resistance mechanism on the trigger button, where the resistance is impressed upon the button during a barcode read and released upon successful completion, allowing users to feel the scanning result.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If vibration actuators are used to provide tactile feedback, then user feedback capability is improved, but device cost and fragility increase

Engineering Contradiction:

Improveuser feedback capabilityVSAvoiddevice durability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent replaces the traditional mechanical vibration actuator with an electromagnetic field-based feedback mechanism. The electromagnetic feedback device generates tactile feedback by creating electromagnetic forces that interact with the trigger button mechanism, eliminating the need for separate vibration motors or actuators. This substitution reduces mechanical complexity and improves reliability while maintaining tactile feedback capability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The electromagnetic feedback device serves multiple functions: it provides tactile feedback during triggering, offers resistance control, and integrates with the existing trigger mechanism. By making the feedback device multi-functional, the patent eliminates the need for separate vibration actuators, reducing overall device complexity and improving reliability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Object-affected harmful factors

If dampers are added to reduce vibration, then noise is reduced, but vibration efficiency decreases

Engineering Contradiction:

Improvenoise reductionVSAvoidvibration efficiency

Core Design Contradiction:

Object-affected harmful factorsVSLoss of energy

Solution Approach 1:

The patent replaces mechanical vibration-based feedback with an electromagnetic field-based system. This substitution eliminates the need for dampers entirely, as the electromagnetic feedback mechanism does not generate mechanical vibrations that would require damping. The trigger button mechanism itself serves as the feedback medium, transferring electromagnetic forces directly to the user's finger without mechanical vibration losses.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Loss of information

If visual or audible feedback is used, then feedback is provided, but feedback is insufficient in noisy environments or at long distances

Engineering Contradiction:

Improvefeedback deliveryVSAvoidenvironmental adaptability

Core Design Contradiction:

Loss of informationVSAdaptability or versatility

Solution Approach 1:

The patent uses the trigger button as an intermediary medium to transmit feedback information. Instead of relying on visual or audible signals that can be blocked or drowned out, the feedback is transmitted through direct tactile contact via the trigger button, which the user is already holding and pressing. This intermediary approach ensures reliable information delivery regardless of environmental conditions.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

The tactile feedback mechanism effectively communicates scanning results to the user, enhancing usability in environments where visual and audible feedback are inadequate, and improving the durability and efficiency of the scanner.

Implementation Method 1

The feedback device may be configured to provide tactile feedback related to the barcode read to the user through the trigger button via a resistance impressed upon to the trigger button

Methodology Applied

Scientific EffectMechanical Force: Force

Data Source

PatentUS12333377B2Tactile trigger feedback advisor to barcode readers

Publication Date: 2025.06.17 DATALOGIC IP TECH

AI summary

The disclosure a barcode reader having a feedback device for providing tactile feedback to the user through the trigger button. The feedback device may be disposed within the housing and in cooperation with the trigger button. The feedback device may be configured to provide tactile feedback related to the barcode read to the user through the trigger button via a resistance impressed upon to the trigger button in a first instance, and a release of the resistance to the trigger button in a second instance.