Tactile Feedback via Speed-Dependent Vibration Pulses
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Solution Overview
Problem
Existing touch-sensitive user interfaces on electronic devices, such as smartphones and tablets, lack tactile feedback, making it difficult for users to interact with the device without visual contact, particularly in environments where visual distraction is a concern or in harsh conditions.
Innovation Solution
A method that generates vibrations in the user interface based on the speed of touch movement, allowing for intuitive tactile interaction by varying the interval between vibration pulses according to the movement speed, enabling users to identify operating areas without visual contact through haptic feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a smooth surface is used for the user interface, then the device is easier to manufacture and has a simpler structure, but tactile orientation and identification of operating areas become impossible without visual contact
Solution Approach 1:
The patent applies mechanical vibration to the user interface surface to create tactile feedback. When a user touches the screen, the system generates vibrations at specific frequencies and patterns that correspond to different operating areas, allowing users to identify and locate controls through haptic sensation rather than visual contact or static surface texture
Solution Approach 2:
The patent changes the vibration parameters (frequency, amplitude, duration, pattern) dynamically based on the detected touch position and context. Different operating areas trigger distinct vibration signatures, enabling users to differentiate between buttons, sliders, and other interface elements through tactile perception alone
2Ease of operation
If vibration feedback is added to provide tactile orientation, then tactile interaction is improved, but processor power requirements increase
Solution Approach 1:
The patent uses periodic vibration pulses with specific timing patterns to convey information about operating areas. By using rhythmic, periodic vibrations rather than continuous feedback, the system provides sufficient tactile information while allowing processor cycles to be reused between pulses, reducing overall power consumption
Solution Approach 2:
The vibration feedback system dynamically adjusts its characteristics based on real-time touch detection and context. The system activates vibration only when and where needed, modulating the feedback intensity and pattern according to the user's interaction state, thereby optimizing processor utilization and energy efficiency
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 method enhances the usability of electronic devices by reducing visual distraction and improving operability in various environments, allowing users to interact with the device tactically, even in the dark or without looking at the interface, while maintaining low processor power requirements.
Implementation Method 1
the device has a vibration device for generating a vibration
Data Source
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AI summary
The invention relates to a method for tactile user interaction with an electronic device, for example a smart phone, tablet PC or navigation device, comprising at least one processor for processing data, and one touch-sensitive operating interface, said device having a vibration device for generating a vibration, and the operating interface being designed to comprise a scanning device for generating a scanning signal depending on a position of a touch on said operating interface. According to the invention, a vibration is generated at least in said operating interface depending on a speed of a change in position of the touch on said operating interface, the speed of said change in position of the touch on the operating interface being detected by determining a first position at a first point in time, and a second position at a second point in time, by means of said scanning device, a scanning signal being generated.