Swipe-guide Attachment for Mobile Card Reader Stability
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Solution Overview
Problem
The small form factor of mobile card readers makes it difficult for users to visually distinguish between insertion slots for different payment card types, and the cylindrical shape can cause the reader to move or rotate, making it cumbersome to swipe or dip financial payment cards.
Innovation Solution
A swipe-guide attachment with visual features and mechanical support to differentiate between swipe and dip slots, preventing unintentional rotation of the card reader, which includes a harness, extension slots with guides, and a flange to secure the card reader against the host device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the card reader is made with a small form factor, then portability is improved, but visual distinction between insertion slots deteriorates
Solution Approach 1:
The patent applies color coding to differentiate between swipe and dip insertion slots. The swipe slot is indicated with a first color (e.g., blue) and the dip slot with a second color (e.g., red), allowing users to easily distinguish between slot types despite the compact size of the card reader.
2Shape
If the card reader has a cylindrical shape, then compactness is improved, but stability during card insertion deteriorates
Solution Approach 1:
The patent introduces asymmetric features to the cylindrical card reader body, including an asymmetric pattern and asymmetric color coding. These asymmetric elements prevent the card reader from rotating during card insertion by providing visual and tactile guidance that establishes a fixed orientation.
3Area of stationary object
If insertion slots are located close together, then device compactness is improved, but user accuracy in selecting the correct slot deteriorates
Solution Approach 1:
The patent uses distinct color coding for closely spaced insertion slots to enable accurate differentiation. The first color indicates the swipe slot while the second color indicates the dip slot, allowing users to accurately select the correct slot even when they are positioned close together on the device.
Data Source
AI summary
Aspects of the technology relate to a swipe-guide attachment for use with a mobile card reader. In some aspects, the swipe-guide attachment is configured to facilitate insertion of a payment card into the card reader and prevent rotation of the card reader. A swipe-guide may include a harness for enclosing the card reader, and can include an aperture, for example, to permit passage of an audio plug of the card reader into a headphone port of a host mobile device.