Transaction Terminal Module Antenna Oblique Orientation
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Solution Overview
Problem
It is challenging to miniaturize wireless and scanner units while maintaining performance, making it difficult to create a small module that can be incorporated into a limited space in transaction terminal devices.
Innovation Solution
A module design with a housing featuring obliquely disposed front surface members and an antenna on the back side, allowing the wireless unit to maintain antenna area while being angled to reduce vertical length, and the scanner unit positioned to read codes through an opening, enabling partial overlap with the wireless unit to further shorten the module's height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the wireless unit and scanner unit are incorporated in one housing to form a module, then the device integration is improved, but the module size cannot be reduced because each unit cannot be miniaturized while maintaining performance
Solution Approach 1:
The patent applies dimensional reconfiguration by changing the antenna orientation from a conventional horizontal/vertical planar arrangement to an oblique three-dimensional configuration. The antenna is disposed at a specific angle relative to the housing front surface, allowing it to project in multiple directions (upward, downward, leftward, rightward) simultaneously. This spatial reorientation enables the antenna to maintain its required effective area while occupying less linear space within the module housing, thereby reducing the overall module volume while preserving wireless communication performance.
2Reliability
If the antenna area is maintained for wireless communication performance, then the communication reliability is improved, but the vertical length of the module increases
Solution Approach 1:
The patent resolves this contradiction by transitioning the antenna from a two-dimensional planar layout to a three-dimensional oblique configuration. The antenna is positioned at a specific angle relative to the housing front surface, allowing it to extend in multiple spatial directions (upward, downward, leftward, rightward) simultaneously. This three-dimensional orientation enables the antenna to achieve the required effective area for reliable wireless communication while occupying minimal linear vertical space, thus maintaining communication reliability without increasing the module's vertical length.
Solution Approach 2:
The patent employs asymmetric positioning of the antenna within the housing, where the antenna is disposed at a specific non-uniform angle relative to the front surface rather than in a symmetric conventional orientation. This asymmetric configuration allows the antenna to optimize its radiation pattern and effective area in three-dimensional space, achieving reliable wireless communication performance while minimizing the vertical footprint of the module.
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 configuration allows for a compact module that incorporates both wireless and scanner units effectively, maintaining performance and allowing for efficient data communication and code reading within a limited space.
Implementation Method 1
a wireless unit, configured to perform a data communication using at least a near field communication
Data Source
AI summary
A module provided in a predetermined space of an operation panel of a transaction terminal device to input and output digital information, includes: a wireless unit, a scanner unit, and a housing. The housing has a first front surface member and a second front surface member, a lower side of the first front surface member projects toward an operator with respect to an upper side of the first front surface member, an upper side of the second front surface member projects toward the operator with respect to a lower side of the second front surface member, an antenna of the wireless unit is provided on a back side of the first front surface member, a lower side of the antenna projects toward the operator with respect to an upper side of the antenna, and the scanner unit reads a code through an opening of the second front surface member.