Conductive Screen Engaging Member for Capacitive Touch Interaction
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Solution Overview
Problem
Handheld barcode readers often fail to interact with capacitive touchscreens of portable devices, leading to user frustration and potential device damage due to prolonged contact.
Innovation Solution
A handheld barcode reader with a conductive screen engaging member, constructed from materials like foil, tape, or paint, that establishes a communicative link between the user's hand and the device, allowing interaction with capacitive touchscreens without damaging the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users use the handheld scanner to press against the capacitive touch screen interface, then they can attempt to interact with the portable electronic device, but the contact does not trigger an input and may cause damage to the device
Solution Approach 1:
A conductive member is attached to the handheld scanner to serve as an intermediary between the user's hand and the capacitive touchscreen. This conductive member establishes a communicative link that allows the touchscreen to detect input signals, enabling proper interaction while preventing direct contact between the user's hand and the screen surface, thereby eliminating the risk of damage.
2Reliability
If the handheld scanner is constructed from dielectric material, then it is electrically insulating, but it cannot establish a communicative link with capacitive touchscreens
Solution Approach 1:
The handheld scanner maintains its dielectric construction for overall electrical insulation, but a specific local region (the conductive member attached to the nose portion) is modified to have conductive properties. This localized change enables touchscreen compatibility while preserving the electrical insulation characteristics of the main scanner body.
Solution Approach 2:
The handheld scanner system becomes a composite structure combining the original dielectric scanner body with an attached conductive member. This composite construction integrates two materials with opposite electrical properties, allowing the scanner to maintain its insulating body while gaining conductive capability for touchscreen interaction through the attached member.
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
Enables effective interaction with capacitive touchscreens, preventing damage to the device and enhancing user experience by allowing seamless operation of both barcode scanning and touchscreen interaction.
Implementation Method 1
The screen engaging member is constructed from a conductive material and includes an extension member coupled with the nose portion of the reader enclosure... the screen engaging member establishes a communicative link via the conductive material between a user's hand, when contacting the arm member, and the extension member
Data Source
AI summary
A handheld barcode reader includes a reader enclosure constructed from a dielectric material and a screen engaging member operatively coupled with the reader enclosure. The reader enclosure includes a nose portion and a handle portion coupled with the nose portion and is adapted to accommodate a user's hand. The screen engaging member is constructed from a conductive material and includes an extension member coupled with the nose portion of the reader enclosure and at least one arm member extending from the nose portion of the reader enclosure to the handle portion of the reader enclosure.