Hover Touch Device Visual Auditory Feedback Finger Position
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Solution Overview
Problem
Conventional hover touch devices face challenges in accurately determining finger operating distances due to limited line of sight, leading to false touch events and inadvertent direct contacts with the display device, as users rely solely on vision without tactile feedback.
Innovation Solution
A hover touch device with sensory feedback that combines a capacitive touch panel, touch driver chip, and embedded system to provide visual and auditory feedback, using a graphical user interface and speaker to assist users in determining finger positions and gestures, with warning sounds for proximity and gesture event feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If hover touch device operates without tactile feedback, then non-contact operation is achieved, but user accuracy in determining finger position deteriorates
Solution Approach 1:
The patent implements visual feedback by displaying a feedback image on the display device that corresponds to the detected finger position. The feedback image moves in real-time as the finger moves, providing the user with visual information about the actual finger position relative to the hover touch device, thereby improving measurement precision without requiring direct contact
Solution Approach 2:
The patent introduces an intermediary visual feedback mechanism between the finger and the hover touch device. Instead of relying solely on direct visual observation of the finger, the system uses a feedback image as an intermediary representation that translates the finger position into visible information, helping users accurately judge distance and position
2Ease of operation
If user relies solely on vision to determine finger distance, then non-contact operation is enabled, but false touch events increase
Solution Approach 1:
The system provides continuous visual feedback through a feedback image that reflects the actual finger position. This feedback loop allows users to adjust their finger position in real-time, preventing false touch events by making the relationship between finger position and detected position transparent and controllable
3Device complexity
If hover touch device provides no position indication, then device complexity is reduced, but user awareness of finger position deteriorates
Solution Approach 1:
The system creates a visual copy (feedback image) of the finger position information and displays it on the screen. This copy provides the user with information about finger position without requiring complex additional hardware, as it utilizes the existing display capabilities to present the positional data in a visually intuitive manner
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
Enhances user accuracy in operating hover touch devices by providing visual and auditory feedback, reducing false touch events and inadvertent contacts by clearly indicating finger positions and gestures, thus improving the user experience.
Implementation Method 1
a capacitive touch panel for sensing a conductive object adjacent to the capacitive touch panel
Data Source
AI summary
A hover touch device with sensory feedback includes: a capacitive touch panel, and a touch driver chip which drives the capacitive touch panel to generate and output a sensing information; based on the sensing information, an embedded system determines whether a conducting object is inside an effective region. The embedded system calculates spatial coordinates of the conductive object, and outputs the spatial coordinates to a graphical user interface, so that the graphical user interface displays a position feedback image on a display device based on the spatial coordinates of the conductive object as a visual feedback. After the embedded system recognizes a hovering gesture event, a speaker generates a hovering gesture event feedback sound as an auditory feedback. The embedded system also makes the speaker broadcast a warning sound when a user's finger contacts the capacitive touch panel.