Foldable Protective Cover With Dual Capacitive Detection Layers
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Solution Overview
Problem
Current protective accessories for portable electronic devices with foldable flaps limit detection functionality and require manual handling to interact with the device, offering only protection and not enhancing detection capabilities.
Innovation Solution
A foldable protective device with dual capacitive detection layers, one on the inner and one on the outer surface, allowing detection and function triggering regardless of the foldable part's position, enabling faster interaction with reduced handling through capacitive electrodes that can function in self-detection or mutual-detection modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a foldable protective cover is used to protect the portable apparatus, then protection function is improved, but detection functionality is limited and manual handling is required to interact with the device
Solution Approach 1:
The foldable protective cover is equipped with capacitive detection electrodes on both its inner and outer surfaces, enabling it to perform both protection and detection functions. The inner surface electrodes detect command objects when the cover is closed over the apparatus, while the outer surface electrodes detect command objects when the cover is open, making the protective cover a multi-functional input device that eliminates the need for separate touchscreen interaction.
2Reliability
If the foldable part covers the command surface, then protection is improved, but interaction speed decreases due to required manual handling
Solution Approach 1:
The mechanical action of opening or closing the foldable cover to access the touchscreen is replaced by capacitive detection electrodes embedded in the cover itself. These electrodes detect command objects through capacitive coupling, allowing users to interact with the apparatus by simply placing their finger or stylus on the cover surface, regardless of whether the cover is open or closed, thereby maintaining protection while enabling fast interaction.
3Device complexity
If traditional protective accessories are used, then simplicity is maintained, but functionality is limited to protection only
Solution Approach 1:
The protective cover and detection functionality are merged into a single integrated device. The foldable cover structure is combined with capacitive detection electrodes on both surfaces, creating a unified accessory that simultaneously provides physical protection and capacitive input capabilities, eliminating the need for separate protection and interaction devices.
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 enhanced detection capabilities and faster interaction with portable devices by allowing command object detection and function triggering without manual handling, providing a compact solution with more functionalities than traditional protective accessories.
Implementation Method 1
said foldable part comprises at least 2 detection layers, each guarded at one guard potential and comprising at least one, preferably several, capacitive detection electrode(s)
Data Source
AI summary
The present invention relates to a device (100) for a portable user apparatus (102), including a portion (104) which can be folded over the user apparatus (102), said foldable portion (104) including at least two detection layers, each kept at a reserve potential and including at least one capacitive detection electrode: a first of said layers being arranged to carry out a function of capacitive detection of at least one control object located on one side of said foldable portion (104); a second of said layers being arranged so as to carry out a function of capacitive detection of at least one control object located on the other side of said foldable portion (104), with a view to triggering a function in the user apparatus (102). The invention also relates to an apparatus (10) provided with such an accessory device.