Protective Cover Segmentation for Wireless Device Sensor and RF Management
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Solution Overview
Problem
Existing protective covers for wireless devices often interfere with RF transmission and camera functionality, triggering proximity sensors and reducing total radiated power, which affects device performance.
Innovation Solution
A protective cover designed to attach to wireless devices without covering the proximity sensor or camera areas, using external coupling antennas and re-directional elements to redirect RF radiation away from the user while maintaining maximum total radiated power and ensuring camera access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a protective cover is applied to cover the screen and surface of a wireless device, then protection against damage is improved, but RF transmission performance deteriorates due to proximity sensor triggering
Solution Approach 1:
The protective cover is divided into multiple portions: a first portion that covers the screen and a second portion that leaves the proximity sensor area exposed. This segmentation allows the cover to provide protection where needed while avoiding interference with the proximity sensor and RF transmission functions.
Solution Approach 2:
Different regions of the protective cover have different properties: the first portion is configured to cover and protect the screen, while the second portion is specifically designed to expose the proximity sensor area. This local differentiation ensures that protection is provided without triggering the proximity sensor or affecting RF transmission.
2Object-affected harmful factors
If a protective cover is applied to cover the surface of a wireless device, then surface protection is improved, but camera functionality deteriorates due to blocking
Solution Approach 1:
The protective cover is segmented into regions that cover the screen while leaving the camera area exposed. This allows the cover to protect the surface without blocking the camera lens or interfering with camera operations.
Solution Approach 2:
The cover has different coverage properties in different locations: it covers the screen area for protection while leaving the camera area exposed. This local quality differentiation ensures both surface protection and camera functionality are maintained.
3Area of stationary object
If a protective cover covers the proximity sensor area, then comprehensive surface coverage is improved, but total radiated power deteriorates due to sensor triggering
Solution Approach 1:
The protective cover is segmented into a first portion for screen coverage and a second portion that exposes the proximity sensor area. This segmentation achieves comprehensive surface coverage while preventing proximity sensor triggering that would reduce total radiated power.
Solution Approach 2:
The cover provides different coverage levels in different regions: full coverage over the screen for protection, but no coverage over the proximity sensor area. This local quality approach maintains maximum total radiated power by preventing sensor triggering while still providing extensive surface protection.
Data Source
AI summary
In some embodiments, an apparatus includes a protective cover configured to attach to a wireless device having a surface including a first portion and a second portion mutually exclusive from the first portion. The second portion of the surface is associated with a proximity sensor of the wireless device. The protective cover is configured to cover the first portion of the surface when the protective cover is attached to the wireless device. The protective cover is configured to not cover the second portion of the surface when the protective cover is attached to the wireless device such that the proximity sensor is not triggered by the protective cover when the protective cover is attached to the wireless device and when the wireless device is operational.