Haptic Input Device Segmentation for Touch Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing touch-based user interface devices lack haptic feedback, making it difficult for users to navigate and interact with virtual elements on screens, as they can only feel the rigid surface, leading to challenges in finding icons, hyperlinks, or selecting input elements.
Innovation Solution
A haptic input device that interfaces with touch-based user interfaces, utilizing sensors to detect characteristics like position, pressure, and orientation, and generates haptic feedback through actuators, providing tactile and visual cues to enhance user interaction, such as vibrations, forces, and motions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touch-based user interface device uses only a rigid touch screen surface, then the device structure remains simple, but the user cannot easily locate and interact with virtual elements on the screen
Solution Approach 1:
The input device is segmented into multiple functional components: a touch-sensitive surface for detecting user input, haptic actuators for providing tactile feedback, and sensors for detecting device characteristics. This segmentation allows each component to perform its specific function efficiently while working together to solve the overall problem of enhancing user interaction with virtual elements.
Solution Approach 2:
The haptic input device acts as an intermediary between the user and the touch-based user interface device. It provides tactile feedback through haptic actuators that simulate the texture and position of virtual elements, enabling users to locate and interact with these elements more easily without directly modifying the touch screen surface itself.
2Ease of operation
If haptic feedback is added to a touch-based user interface device, then user interaction is enhanced, but the device complexity increases
Solution Approach 1:
The haptic input device is designed to perform multiple functions: detecting user input through the touch-sensitive surface, providing haptic feedback through actuators, and detecting device characteristics through sensors. This multi-functionality reduces the need for separate devices for each function, thereby managing complexity while enhancing user interaction.
Solution Approach 2:
The device incorporates feedback mechanisms where sensors detect device characteristics (such as position, orientation, or applied force) and this information is used to adjust the haptic feedback in real-time. This closed-loop feedback system enhances user interaction by providing relevant tactile cues while managing complexity through intelligent control rather than additional hardware.
3Ease of operation
If the touch screen surface is made fully interactive with haptic feedback, then user navigation is improved, but the manufacturing complexity increases
Solution Approach 1:
The touch-sensitive surface and haptic actuators are arranged to provide localized haptic feedback corresponding to specific virtual elements on the screen. Rather than making the entire surface uniformly interactive with complex haptic capabilities, the system provides targeted haptic feedback at specific locations, simplifying manufacturing while improving user navigation.
Solution Approach 2:
The system changes the parameters of the haptic feedback (such as vibration frequency, amplitude, or duration) based on the detected device characteristics and user interaction context. This allows a single haptic actuator to provide multiple types of feedback by varying its operating parameters, reducing the need for multiple actuators and simplifying manufacturing.
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
The haptic input device enhances user interaction by providing mechanical stimulation, confirming selections and providing feedback when interacting with virtual elements, improving navigation and engagement with touch-based interfaces.
Implementation Method 1
The haptic input device may include a haptic actuator that generates haptic feedback based on the received haptic response
Data Source
AI summary
One embodiment of a haptic input device may include a receiver configured to receive a signal from a touch-based user interface device. The signal may include a control signal or a look-up value. The haptic input device may also include a decoder coupled to the receiver and configured to decode the signal from the touch-based user interface device, at least one sensor configured to determine at least one characteristic of the haptic input device, a controller coupled to the one or more sensors and configured to transmit a control signal, a haptic actuator coupled to the controller, and a transmitter coupled to the at least one sensor.