Haptic Visual Feedback Synchronization via Tangential Speed Control
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Solution Overview
Problem
In human-computer interaction, rapid touch operations on touch screens often lead to desynchronization between haptic feedback and visual feedback, resulting in delayed and asynchronous visual responses.
Innovation Solution
A method and apparatus that acquire the tangential speed of a contact during a touch operation on a virtual knob, and control response labels on the touch screen to move in sequence according to this speed, synchronizing haptic and visual feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic device displays the interface after a certain period of feedback time, then the system has time to process and render the visual feedback, but the visual feedback becomes delayed and desynchronized from the haptic feedback when the user executes touch operations rapidly
Solution Approach 1:
The patent applies dynamics by making the visual feedback update mechanism adaptive to the user's operation speed. The system dynamically adjusts whether to update visual feedback based on the detected speed of consecutive touch operations. When operation speed exceeds a threshold, the system skips visual feedback updates to maintain synchronization with haptic feedback, resolving the contradiction between processing time and synchronization reliability.
2Productivity
If the user executes touch operations rapidly, then the interaction efficiency increases, but the visual feedback becomes desynchronized from the haptic feedback
Solution Approach 1:
The patent implements a feedback mechanism that monitors the speed of touch operations and uses this information to control visual feedback updates. The system detects the time interval between consecutive touch operations and adjusts visual feedback accordingly - when the interval is too short (rapid operation), visual feedback is suppressed to maintain synchronization with haptic feedback, thus resolving the contradiction between operation speed and synchronization reliability.
Data Source
AI summary
Provides are a method and device for synchronizing haptic feedback and visual feedback, so as to synchronize the haptic feedback accompanying a touch operation of a user and the visual feedback. The method includes: acquiring a tangential speed of rotation of a contact, the contact is generated when a user executes a touch operation of rotation within a coverage range of a virtual knob displayed on a touch screen, the touch operation being accompanied by haptic feedback; controlling response labels displayed on the touch screen to move in sequence according to the tangential speed to synchronize the haptic feedback and visual feedback formed by moving response labels, a step length of movement of each response label corresponds to a preset unit angle, and the number of movements of each response label is determined according to the number of preset unit angles encompassed in a rotation angle of the virtual knob.